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1. 24. On Relative Growth in Asellus aquaticus

Author:
A. E. Needham
Source:
Proceedings of the Zoological Society of London 1937 v.A107 no.3 pp. 289-313
ISSN:
0370-2774
Subject:
Asellus aquaticus; abdomen; allometry; developmental stages; females; growth retardation; head; males; periodicity; population growth; vertebrates
Abstract:
... 1 In the relative growth of various width dimensions and total length in Asellus aquaticus the mean course of the later stages of growth shows simple allometry. 2 In detail, however, the growth‐curves show a regular rhythmicity which is essentially similar in all segments. It is suggested that the rhythmicity may be due to cyclic phenomena in absolute growth, the periodicity of the cycles in width ...
DOI:
10.1111/j.1096-3642.1937.tb00813.x

2. 31. Relative Growth in Amphibia

Author:
F. March
Source:
Proceedings of the Zoological Society of London 1937 v.A107 no.3 pp. 415-469
ISSN:
0370-2774
Subject:
Rana; Salamandra; Ursidae; allometry; animal ovaries; autumn; body length; breeding season; cod (fish); equations; females; frogs; hibernation; kidneys; liver; males; ova; oviducts; puberty; salamanders and newts; seasonal variation; seminal vesicles; spermatozoa; spring; summer; tadpoles; testes; tissues; weight loss
Abstract:
... : 1 The length of the hind limb of R. temporaria bears to the body length a linear relationship, which can be expressed by the equation y=ax+b. There is a change in the value of the constants a and b at a point which marks the onset of puberty in the female. 2 The weight of amphibians as deduced from mean group measurements of R. temporaria, T. cristatus, S. maculose, A. tigrinum, and R. esculenta ...
DOI:
10.1111/j.1096-3642.1937.tb00820.x

3. 90-Day Oral Toxicity Assessment of Tropaeolum majus L. in Rodents and Lagomorphs

Author:
Valdinei de Oliveira Araújo; Carlos Eduardo Linhares Andreotti; Michelle de Paula Reis; Daniely Alves de Lima; Karoline Bach Pauli; Bruna Caroline Nunes; Caroline Gomes; Ricardo de Melo Germano; Euclides Lara Cardozo Junior; Arquimedes Gasparotto Junior; Emerson Luiz Botelho Lourenço
Source:
Journal of medicinal food 2018 v.21 no.8 pp. 823-831
ISSN:
1557-7600
Subject:
Lagomorpha; Nasturtium; Tropaeolum majus; allometry; blood serum; body weight changes; calcium; females; hematologic tests; histopathology; kidneys; laboratory animals; leaves; liver; lymphocytes; males; mice; neutrophils; potassium; rabbits; rats; salads; spleen; toxicity; toxicity testing
Abstract:
... Tropaeolum majus L., popularly known as nasturtium, is a species widely used in the form of infusions and salads. In the last years, the antihypertensive, diuretic, and calcium and potassium sparing activities of T. majus preparations were shown. Moreover, no preclinical 90-day oral toxicity studies were conducted. Thus, this study evaluated the toxicity of the hydroethanolic extract obtained from ...
DOI:
10.1089/jmf.2017.0128

4. ABUNDANCE AND MORPHOMETRIC RELATIONSHIPS OF AMAZON SHRIMP - Macrobrachium amazonicum (HELLER 1862) (DECAPODA, PALAEMONIDAE) - IN AN AMAZON ESTUARY - NORTH COAST OF BRAZIL

Author:
Bianca Bentes da Silva; Jéssica Cristina Souza Silva; Jussara Moretto Martinelli-Lemos; Victoria Judith Isaac Nahum
Source:
Biota Amazônia 2016 v.6 no.4 pp. 1-9
ISSN:
2179-5746
Subject:
Macrobrachium; allometry; body weight; coasts; dry season; estuaries; females; gonads; morphometry; organic matter; organisms; population dynamics; Brazil
Abstract:
... From Macrobrachium amazonicum (Heller, 1862) (Decapoda, Palaemonidae) abundance in monthly collections in the Amazon estuary and on Mosqueiro Island (State of Pará, Brazil) between April 2006 and August 2007, we verified that the site mentioned is favorable to the development of the species, since there is a significant number of young and adults specimens throughout the year, whose abundance is s ...
DOI:
10.18561/2179-5746/biotaamazonia.v6n4p1-9

5. Acoustic parameters of courtship and human-directed friendly vocalisations in seven species of Neotropical deer in captivity

Author:
Patricia Black-Décima; Alejandra M. Hurtado; J. M. Barbanti Duarte; Mirta Santana
Source:
Animal production science 2020 v.60 no.10 pp. 1283-1291
ISSN:
1836-0939
Subject:
Blastocerus dichotomus; Neotropics; Odocoileus virginianus; acoustic properties; adults; allometry; body size; captive animals; courtship; deer; females; humans; males; models; phylogeny; polygyny; sexual selection; species identification; vocalization; North America; South America
Abstract:
... Context Polygynous deer rut vocalisations have been found to be highly conspicuous, typical of the species and important in sexual selection. Information about vocalisations is not available for Neotropical species (subfamily Odocoileinae). Aims The objective was to record courtship vocalisations from all Neotropical deer available, looking for differences among species useful for taxonomic identi ...
DOI:
10.1071/AN19377

6. Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults

Author:
Jeffrey M. Rogers; Joshua Gills; Michelle Gray
Source:
Journal of the International Society of Sports Nutrition 2020 v.17 no.1 pp. 12
ISSN:
1550-2783
Subject:
allometry; athletic performance; blood flow; citrulline; digestion; females; glucose; malates; males; physical activity; placebos; skeletal muscle; ultrasonics; vasodilation
Abstract:
... BACKGROUND: Athletes are increasingly exploring ways to enhance their physical performance. Increasing blood flow to the working tissues through endothelium-dependent vasodilation is one factor athletes use to realize these results. Sports supplements such as pre-workouts tout this benefit; however, many have not been tested under laboratory conditions to examine the effects of commonly used suppl ...
DOI:
10.1186/s12970-020-00343-y

7. Age and growth of manybar goatfish Parupeneus multifasciatus (Mullidae) from the Nha Trang Bay of the South China Sea

Author:
D. A. Pavlov; N. G. Emel’yanova; Vo Thi Ha; Luong Thi Bich Thuan
Source:
Journal of ichthyology 2013 v.53 no.7 pp. 478-485
ISSN:
0032-9452
Subject:
Mullidae; allometry; body length; body weight; females; fish; males; sexual maturity; South China Sea
Abstract:
... The growth of individuals is analyzed in the mass tropical species manybar goatfish Parupeneus multifasciatus from the Nha Trang Bay of the South China Sea. The relationship between the body weight and body length is determined for the females and males. Among the fishes larger 180 mm fork length (FL), the males prevail. Linear growth of the sagitta is characterized by negative allometry in relati ...
DOI:
10.1134/S003294521304005X

8. Age, growth and reproductive characteristics of the Turkmenian crested loach Metaschistura cristata (Nemacheilidae)

Author:
Rahman Patimar; Khadijeh Mortazaei Rishkhori; Alireza Sabiani
Source:
Folia zoologica 2011 v.60 no.4 pp. 302-307
ISSN:
0139-7893
Subject:
Nemacheilidae; allometry; body length; body weight; breeding season; eggs; fecundity; females; fish; males; oocytes; rivers; sex ratio; Iran; Turkmenistan
Abstract:
... Metaschistura cristata is a small nemacheilid loach species found at a few localities only in Turkmenistan and Iran. The present study reports, for the first time, data on its biology, based on 747 specimens collected from the River Zanglanlou in north-eastern Iran. Specimens were collected at monthly intervals over two reproductive seasons from February to June 2007 and 2008. Maximum age, based o ...
DOI:
10.25225/fozo.v60.i4.a6.2011

9. Age, growth, and sexual dimorphism of the Southern Hemisphere long-finned pilot whale (Globicephala melas edwardii)

Author:
Emma L. Betty; Karen A. Stockin; Bethany Hinton; Barbara A. Bollard; Adam N.H. Smith; Mark B. Orams; Sinéad Murphy
Source:
Journal of mammalogy 2022 v.103 no.3 pp. 560-575
ISSN:
0022-2372
Subject:
Globicephala melas; allometry; coasts; females; growth models; longevity; males; mammalogy; mortality; regression analysis; sexual dimorphism; sexual maturity; social behavior; tail; New Zealand
Abstract:
... Knowledge of population biological parameters can contribute to assessing the resilience of a population in the face of increasing anthropogenic pressures. Southern Hemisphere long-finned pilot whales (Globicephala melas edwardii) are susceptible to high rates of live stranding-related mortality. However, the biological parameters of this population largely are unknown. In this study, age, growth, ...
DOI:
10.1093/jmammal/gyab165

10. Age- and sex-dependent regression models for predicting the live weight of West African Dwarf goat from body measurements

Author:
Sowande, O. S.; Oyewale, B. F.; Iyasere, O. S.
Source:
Tropical animal health and production 2010 v.42 no.5 pp. 969-975
ISSN:
0049-4747
Subject:
allometry; animal age; body length; body weight; farms; females; head; heart; kids (goats); models; prediction; regression analysis; withers
Abstract:
... The relationships between live weight and eight body measurements of West African Dwarf (WAD) goats were studied using 211 animals under farm condition. The animals were categorized based on age and sex. Data obtained on height at withers (HW), heart girth (HG), body length (BL), head length (HL), and length of hindquarter (LHQ) were fitted into simple linear, allometric, and multiple-regression m ...
DOI:
10.1007/s11250-009-9515-4
PubMed:
20012193

11. Age-based life-history parameters of the mesopelagic fish Notoscopelus resplendens (Richardson, 1845) in the Central Eastern Atlantic

Author:
Airam-Nauzet Sarmiento-Lezcano; Raül Triay-Portella; José Juan Castro; Uriel Rubio-Rodríguez; José G. Pajuelo
Source:
Fisheries research 2018 v.204 pp. 412-423
ISSN:
0165-7836
Subject:
Notoscopelus; age structure; allometry; females; fish; growth models; habitats; hatching date; life history; males; migratory behavior; mortality; ontogeny; otoliths; sex ratio; sexual dimorphism; spawning; surface water; temperature; warm season; Atlantic Ocean
Abstract:
... The mesopelagic fish Notoscopelus resplendens is distributed mainly between 500 and 1000 m of depth during the day, with diel migration to surface waters at night (<90 m). Fish move during their diel migrations across different water masses, which show strong changes in temperature with depth that can reach 7 °C in the first 300 m during the warm season. N. resplendens show a type of diel migratio ...
DOI:
10.1016/j.fishres.2018.03.016

12. Allometric Changes and Shape Comparisons of Two Southwestern Sucker Species and Their Hybrids Using a Geometric Morphometric Approach

Author:
Pilar N. Wolters‐Rinker; David L. Rogowski; Alice C. Gibb
Source:
Transactions of the American Fisheries Society 2022 v.151 no.5 pp. 630-640
ISSN:
0002-8487
Subject:
Catostomus latipinnis; Xyrauchen texanus; allometry; females; fish; geometry; habitat destruction; hybridization; juveniles; males; morphometry; watersheds; Colorado River
Abstract:
... Hybridization between two sucker species, Razorback Sucker Xyrauchen texanus and Flannelmouth Sucker Catostomus latipinnis, historically has occurred but has been facilitated by anthropogenic habitat alteration. The ability to differentiate Razorback Suckers from Flannelmouth Suckers and hybrids is essential for the conservation and management of the endangered Razorback Sucker. The purpose of our ...
DOI:
10.1002/tafs.10380

13. Allometric Growth of the Freshwater Crab Potamon algeriense (Bott, 1967) (Decapoda, Brachyura, Potamidae) in Oued Zegzel, a Mountain Stream, in the Northeast of Morocco

Author:
Soufiane Fadlaoui; Mohammed Mahjoub; Ouahid El Asri; Mohammed Melhaoui
Source:
International journal of zoology 2019 v.2019 pp. -
ISSN:
1687-8485
Subject:
Decapoda; abdomen; allometry; burrows; crabs; egg incubation; females; freshwater; males; morphometry; regression analysis; rivers; sexual maturity; streams; Morocco
Abstract:
... A morphometric study has been carried out for the first time on the population of the freshwater crab Potamon algeriense inhabiting Oued Zegzel, a tributary of the Lower Moulouya River, in the northeast of Morocco. Crabs were collected monthly over one year (October 2017 to September 2018) by excavating burrows and searching under blocks. A total of 669 crabs were obtained, 291 females and 378 mal ...
DOI:
10.1155/2019/5168639

14. Allometric and trophic effects on shell morphology of Pomacea canaliculata (Caenogastropoda, Ampullariidae) from a geometric morphometrics viewpoint

Author:
Nicolás Eduardo Tamburi; Pablo Rafael Martín
Source:
Molluscan research 2013 v.33 no.4 pp. 223-229
ISSN:
1448-6067
Subject:
Pomacea canaliculata; allometry; crops; environmental factors; females; food availability; males; morphometry; pests; photographs; rearing; young adults; South America
Abstract:
... Pomacea canaliculata , an invasive apple snail native to South America, is a serious pest of aquatic crops in several parts of the world. The origin of inter-population variation in shell shape is thought to be both genetic and environmental but the reaction norms to specific environmental factors are still poorly understood. Our aims were to analyze the existence of direct and indirect (allometri ...
DOI:
10.1080/13235818.2013.783984

15. Allometric coefficients for carcass and non-carcass components in a local meat-type sheep breed

Author:
Alberto Sabbioni; Valentino Beretti; Michela Ablondi; Federico Righi; Paola Superchi
Source:
Small ruminant research 2018 v.159 pp. 69-74
ISSN:
0921-4488
Subject:
allometry; body weight; breeding; chest; data analysis; females; finishing; flocks; gender differences; head; heart; lean meat; liver; males; meat production; neck; ribs; sheep; skeletal development; slaughter; vertebrae
Abstract:
... The aim of the research was to assess the type of development of carcass and non-carcass components and tissue partitioning in the Cornigliese sheep breed. The study involved 164 animals (104 females, 60 males) from one flock. The selection of those animals accounted for ages and weights differences. Fasted body weight (BW) was recorded before slaughtering. Four BW-classes were identified by means ...
DOI:
10.1016/j.smallrumres.2017.11.005

16. Allometric coefficients for physical-chemical parameters of meat in a local sheep breed

Author:
Alberto Sabbioni; Valentino Beretti; Ernesto Mario Zambini; Paola Superchi; Michela Ablondi
Source:
Small ruminant research 2019 v.174 pp. 141-147
ISSN:
0921-4488
Subject:
allometry; analysis of variance; body weight; color; equations; fasting; fatty acid composition; females; gender differences; lean meat; lipid content; males; pH; polyunsaturated fatty acids; proximate composition; sheep; sheep breeds; sheep meat; slaughter; vertebrae
Abstract:
... With the aim to assess the kind of development of meat colour, pH, chemical composition and fatty acids content, lean meat from a sample cut, taken in correspondence of the first 4 thoracic vertebrae from 164 animals of the Cornigliese sheep breed, was analysed. The animals (104 females, 60 males) were fed with the same nutritional plan; they were between 3.6 and 80.0 months old and their body wei ...
DOI:
10.1016/j.smallrumres.2019.04.001

17. Allometric growth and condition factor of West African shrimp, Macrobrachium vollenhovenii (Herklots, 1857), in the rivers of Côte d’Ivoire

Author:
Koffi Mexmin Konan; Allassane Ouattara; Kouassi Sébastino Da Costa; Abouo Béatrice Adépo-Gourène; Germain Gourène
Source:
Marine & freshwater research 2014 v.65 no.10 pp. 849-856
ISSN:
1323-1650
Subject:
Macrobrachium; allometry; aquaculture; body length; condition factor; databases; ecology; females; fisheries; males; managers; rivers; shrimp
Abstract:
... The length–length and length–weight relationships and condition factor for Macrobrachium vollenhovenii are described using samples collected from the rivers of Côte d’Ivoire. The maximum carapace lengths (CLs) registered for males and females were 63.00 and 53.60mm, respectively. All relationships between body length and CL and weight and CL were found to be highly significant, with r2>0.76 (P<0.0 ...
DOI:
10.1071/MF13147

18. Allometry in damselfly ornamental and genital traits: solving some pitfalls of allometry and sexual selection

Author:
Córdoba-Aguilar, A.; López-Valenzuela, A.; Brunel, O.
Source:
Genetica 2010 v.138 no.11-12 pp. 1141-1146
ISSN:
0016-6707
Subject:
Hetaerina; allometry; animals; body size; females; head; males; sexual selection
Abstract:
... Static allometry of sexually selected traits has been the subject of intense research recently. However, some pitfalls for this kind of research are: (a) the functions of sexual traits are largely unknown; (b) more than one body size indicator must be measured; and, (c) allometry must be examined under different environmental circumstances to see whether allometric values change. Using Hetaerina a ...
DOI:
10.1007/s10709-010-9504-6

19. Allometry in the Bearded Dragon Pogona barbata (Sauria: Agamidae): Sex and Geographic Differences

Author:
Andrew G. Stauber; David J. David
Source:
Australian zoologist 2003 v.32 no.2 pp. 238-245
ISSN:
0067-2238
Subject:
Agamidae; adults; allometry; arid zones; body size; females; genetic drift; geographical variation; head; juveniles; legs; lizards; males; phenotype; rain; sexual dimorphism; tail; New South Wales
Abstract:
... Allometry in size and shape between sexes was investigated in preserved Bearded Dragon Pogona barbata museum specimens. Measurements for snout-vent, head, leg and tail lengths were obtained from 236 individuals ranging from hatchlings to large adults. Juveniles and adults were sexed, and size at onset of maturity was determined. Geographic variation in P. barbata was also studied by comparing liza ...
DOI:
10.7882/AZ.2003.005

20. Allometry of Male Grasping Apparatus in Odonates Does Not Suggest Physical Coercion of Females

Author:
Alex Córdoba-Aguilar; David E. Vrech; Miguel Rivas; Angela Nava-Bolaños; Daniel González-Tokman; Enrique González-Soriano
Source:
Journal of insect behavior 2015 v.28 no.1 pp. 15-25
ISSN:
0892-7553
Subject:
Anax junius; Zygoptera; allometry; arthropods; body length; courtship; females; sensilla
Abstract:
... Male abdominal grasping apparatus that are used to secure a female prior, during and after mating, are widespread in arthropods. The scarce evidence regarding its selective regime suggests that they are male adaptations to circumvent female mating decisions, as predicted by the sexual conflict hypothesis. A recent discussion regarding this way of selection suggests that, similar to weapons and tra ...
DOI:
10.1007/s10905-014-9477-x

21. Allometry of locomotor organs and sexual size dimorphism in the mygalomorph spider Grammostola rosea (Walckenaer, 1837) (Araneae, Theraphosidae)

Author:
Bruno Grossi; Claudio Veloso; Andrés Taucare-Ríos; Mauricio Canals
Source:
Journal of arachnology 2016 v.44 no.1 pp. 99-102
ISSN:
0161-8202
Subject:
Theraphosidae; allometry; body size; females; legs; locomotion; males; searching behavior; sexual dimorphism
Abstract:
... Although sexual size dimorphism is a widely observed phenomenon in nature, the selective forces that led to it are still controversial. Here we study sexual dimorphism in the static allometry of the legs of a large ground spider, Grammostola rosea (Walckenaer, 1837). We found that this species has a moderate sexual size dimorphism and males have longer legs relative to body size than females, simi ...
DOI:
10.1636/M15-51.1

22. Allometry of secondary, primary, and nonsexual traits in the beautiful demoiselle (Calopteryx virgo meridionalis)

Author:
D. Outomuro; A. Cordero-Rivera
Source:
Canadian journal of zoology 2012 v.90 no.9 pp. 1094-1101
ISSN:
1480-3283
Subject:
Calopteryx virgo; aedeagus; allometry; appendages; body length; copulation; evolution; females; horns; males
Abstract:
... The static allometry between the size of a trait and the body size results from the net selection forces acting on the evolution of both the trait and the body size. An increased knowledge of the functional significance of traits is necessary to understand observed allometric patterns. We studied several traits of males of the beautiful demoiselle (Calopteryx virgo meridionalis Sélys, 1873), for w ...
DOI:
10.1139/z2012-076

23. Allometry of the baculum in the wolf (Canis lupus, Canidae) as an indicator of viability and quality in males

Author:
Alexander Čanády; Ľuboš Čomor
Source:
Zoology and ecology 2015 v.25 no.3 pp. 192-198
ISSN:
2165-8013
Subject:
Canis lupus; allometry; body size; body weight; dimorphism; females; genes; males; mating behavior; viability; wolves
Abstract:
... The aim of this study was to investigate the hypothesis that the baculum of the wolf may be used as a reliable indicator of good genes to female mates during mating. The wolf is a species where pair bonds are formed via strength of pre-copulatory mate choice surmised from the degree of male-biased sexual size dimorphism found in this species. Results in this study showed that a positive, linear re ...
DOI:
10.1080/21658005.2015.1044164

24. Allometry of the postnatal cranial ontogeny and sexual dimorphism in Otaria byronia (Otariidae)

Author:
Bárbara A. Tarnawski; Guillermo H. Cassini; David A. Flores
Source:
Acta theriologica 2014 v.59 no.1 pp. 81-97
ISSN:
0001-7051
Subject:
Otariidae; adults; allometry; females; head; males; multivariate analysis; ontogeny; quantitative analysis; sexual behavior; sexual dimorphism; skull
Abstract:
... We studied the cranial postnatal ontogeny of Otaria byronia in order to detect sexual dimorphism in allometric terms, analyzing the rate of growth of functional variables linked to specific capacities as bite and head movements. We used 20 linear measurements to estimate allometric growth applying bivariate and multivariate analyses in females and males separately. Males were also analyzed in two ...
DOI:
10.1007/s13364-012-0124-7

25. Amur tiger (Panthera tigris altaica) energetic requirements: Implications for conserving wild tigers

Author:
C.S. Miller; M. Hebblewhite; Y.K. Petrunenko; I.V. Seryodkin; J.M. Goodrich; D.G. Miquelle
Source:
Biological conservation 2014 v.170 pp. 120-129
ISSN:
0006-3207
Subject:
Panthera tigris altaica; adults; allometry; biomass; carrying capacity; diet; energy; females; males; managers; models; natural resources conservation; reproduction; starvation; Russia
Abstract:
... The Global Tiger Recovery Program has identified increasing prey populations as a crucial component of recovering wild tiger numbers because prey density is a key determinant of tiger density, especially for Amur tigers (Panthera tigris altaica) living at the northern limit of tiger distribution, where both tiger and prey densities are the lowest range wide. To understand potential prey requiremen ...
DOI:
10.1016/j.biocon.2013.12.012

26. Annual reproductive cycle and sexual dimorphism in the dragonet, repomucenus valenciennei, in Tokyo bay, Japan

Author:
Kou Ikejima; Makoto Shimizu
Source:
Ichthyological research 1998 v.45 no.2 pp. 157-164
ISSN:
1341-8998
Subject:
allometry; autumn; color; females; fins; fish; males; sexual dimorphism; spawning; spring; testes; Japan
Abstract:
... The annual reproductive cycle of the dragonet, Repomucenus valenciennei, from Tokyo Bay, Japan, was studied by analysis of seasonal trends in gonadosomatic indices and histological observations of gonads. Sexual dimorphism in the growth of several body parts relative to standard length (SL) and changes in color pattern of the first dorsal fin with growth were also investigated. The spawning season ...
DOI:
10.1007/BF02678558

27. Are differences in variation and allometry in testicular size of two sibling species of the genus Mus (Mammalia, Rodentia) caused by female promiscuity?

Author:
Alexander Csanády; Michal Stanko; Ladislav Mošanský
Source:
Mammal research 2019 v.64 no.1 pp. 31-38
ISSN:
2199-2401
Subject:
Mus musculus; allometry; body weight; females; males; mating systems; mice; monogamy; phenotypic variation; phylogeny; reproductive success; sexual selection; sibling species; sperm competition; spermatozoa; testes; testosterone; Carpathian region; Slovakia
Abstract:
... Body and testes size can significantly affect male reproductive success under pre- and post-copulatory sexual selection. Testicular relative mass and/or volume are often used as a characteristic of sperm competitive ability in a comparison of phylogenetically close mammal species. Mus spicilegus males have the largest testes relative to body mass of any Mus species, which is often an indicator of ...
DOI:
10.1007/s13364-018-0393-x

28. Are size, variability and allometry of the baculum in relation to body length signals of a good condition in male weasels Mustela nivalis

Author:
Alexander Čanády; Anna Onderková
Source:
Zoologischer Anzeiger 2016 v.264 pp. 29-33
ISSN:
0044-5231
Subject:
Mustela; adults; allometry; body length; breeding; copulation; correlation; females; genes; males; mammals; penis; sexual dimorphism
Abstract:
... In this study we investigated the allometry and variation in the baculum of the weasel Mustela nivalis and compared it with head-and-body length, which is not involved in reproduction. The females of many mammalian species select mates in part during intromission and evaluate attributes of the penis that are informative in regard to a male’s size or other characteristics. If females benefit by mat ...
DOI:
10.1016/j.jcz.2016.07.003

29. Aspects of reproductive biology of curimba Prochilodus lacustris (Pisces, Prochilodontidae) in a tropical lake in Northeastern Brazil

Author:
Rayssa de Lima Cardoso; Marcelo Henrique Lopes Silva; Raimunda Nonata Fortes Carvalho‐Neta; Antonio Carlos Leal de Castro; Cássia Fernanda Chagas Ferreira; Helen Roberta Silva Ferreira; Débora Martins Silva Santos
Source:
Journal of applied ichthyology 2019 v.35 no.2 pp. 488-500
ISSN:
0175-8659
Subject:
Prochilodus; allometry; biometry; body length; condition factor; dissolved oxygen; electrical conductivity; environmental factors; females; gillnets; gonadosomatic index; gonads; hepatosomatic index; indicator species; lakes; lentic systems; males; meteorological data; oxygen; pH; repletion; reproduction; sex ratio; spawning; stomach; temperature; tropical fish; wet season; Brazil
Abstract:
... This study evaluated the annual cycle of biological reproductive aspects of Prochilodus lacustris, a neotropical fish species, in Baixada Maranhense Protection Area in northeastern Brazil. Fish were collected monthly between June of 2015 and June of 2016 using gill nets. In the laboratory, 600 individuals were weighed, measured, and eviscerated to obtain biometric data and data for the microscopic ...
DOI:
10.1111/jai.13868

30. Aspects of the morphology and reproductive biology of the Australian Earless Dragon Lizard Tympanocryptis tetraporophora

Author:
Allen E. Greer; Sarah Smith
Source:
Australian zoologist 1999 v.31 no.1 pp. 55-70
ISSN:
0067-2238
Subject:
allometry; autumn; clutch size; color; eggs; females; head; lizards; males; national parks; sexual dimorphism; sexual maturity; spring; tail; teeth; testes; vertebrae; New South Wales
Abstract:
... In the small Australian dragon (agamid) lizard Tympanocryptis tetraporophora mean snout-vent length (SVL) does not differ significantly between the sexes within the species as a whole. However, in a large sample from Sturt National Park, in northwestern New South Wales, males are larger than females both in snout-vent length and in mass. Large specimens are notably lacking from collections made du ...
DOI:
10.7882/AZ.1999.007

31. Assessing Rensch’s rule in a newt: Roles of primary productivity and conspecific density in interpopulation variation of sexual size dimorphism

Author:
Miguel Peñalver‐Alcázar; Pedro Galán; Pedro Aragón
Source:
Journal of biogeography 2019 v.46 no.11 pp. 2558-2569
ISSN:
0305-0270
Subject:
Salamandridae; allometry; biogeography; body size; conspecificity; courtship; fecundity; females; genetic structure; geographical distribution; mitochondria; plasticity; primary productivity; salamanders and newts; sexual dimorphism; sexual selection; Iberian Peninsula
Abstract:
... AIM: Major efforts have been devoted to understanding the geographic pattern of sexual size dimorphism (SSD). Rensch's rule posits that SSD increases with body size in male‐biased SSD species and decreases with body size in female‐biased SSD species. This pattern, and its inverse, have been mainly explored at the interspecific level, whereas research at the intraspecific level has been largely neg ...
DOI:
10.1111/jbi.13680

32. Baculum variation and allometry in the muskrat (Ondatra zibethicus): a case for sexual selection

Author:
Tasikas, Diana E.; Fairn, Evan R.; Laurence, Sophie; Schulte-Hostedde, Albrecht I.
Source:
Evolutionary ecology 2009 v.23 no.2 pp. 223-232
ISSN:
0269-7653
Subject:
Ondatra zibethicus; allometry; males; variance; penis; copulation; sexual selection; genes; genitalia; mammals; insects; females; skull; Ontario
Abstract:
... Sexual selection is a powerful force that influences the evolution of a variety of traits associated with female mate choice and male-male competition. Although other factors have been implicated, sexual selection may be particularly important in the evolution of the genitalia. Traits under sexual selection typically have high phenotypic variance and positive allometry relative to non-sexual trait ...
DOI:
10.1007/s10682-007-9216-2

33. Biologi reproduksi ikan juaro (Pangasius polyuranodon) di daerah aliran Sungai Musi Sumatra Selatan

Author:
Yunizar Ernawati; Eko Prianto; A. Ma'suf
Source:
Berkala Penelitian Hayati 2012 v.15 no.1 pp. 45-52
ISSN:
2337-389X
Subject:
Pangasius; allometry; aquaculture; condition factor; fecundity; females; fish; gillnets; males; maturity stage; rivers; sex ratio; t-test; Indonesia
Abstract:
... Study on biology reproduction was expected to give basic information for management, such as for aquaculture, capture fisheriesand conservation of P. polyuranodon in Musi river. Sampling were conducted on June 2006, August 2006, January 2007, and July 2007in Musi river by using gillnet. Data analysis included length-weight relationship, sex ratio, condition factor, gonad maturity stage,Gonadosomat ...
DOI:
10.23869/bphjbr.15.1.20099

34. Biological Aspect of Bullet Tuna Auxis rochei (Risso, 1810) in the Makassar Strait, West Sulawesi, Indonesia

Author:
Wayan Kantun; Indra Cahyono; Wayan Suma Arsana
Source:
Croatian journal of fisheries 2019 v.77 no.3 pp. 119-126
ISSN:
1848-0586
Subject:
Auxis; Crustacea; allometry; females; fisheries; length; males; objectives; research; sampling; stomach; tuna; weight; Indonesia
Abstract:
... The objectives of the present study were to determine the size distribution, growth pattern, feeding habit and stomach fullness index of bullet tuna Auxis rochei in the Makassar Strait, West Sulawesi. The research was conducted for six months between March and August 2017. Sampling collection was carried out using the handline technique. A total of 2160 fish were caught. Their total length ranged ...
DOI:
10.2478/cjf-2019-0013

35. Biological Characteristics of the Invasive Gambusia holbrooki in the Wetland, the Lake Van Basin, Turkey

Author:
A. A. Atici; A. Sepil; F. Sen
Source:
Journal of ichthyology 2022 v.62 no.4 pp. 594-604
ISSN:
0032-9452
Subject:
Gambusia holbrooki; allometry; basins; condition factor; eggs; fauna; females; fish; freshwater; ichthyology; invasive species; lakes; males; reproductive performance; wetlands
Abstract:
... Gambusia holbrooki (Girard, 1859) is worldwide spread invasive fish species and is found in the wetland, the Lake Van basin. This study was carried out to determine the biological characteristics of G. holbrooki. A total of 544 specimens were caught by electrofishing between August 2019 and July 2020. The maximum total length were 5.52 cm for females and 3.10 cm for males. The length–weight relati ...
DOI:
10.1134/S0032945222040014

36. Biological aspects of brown-marbled grouper (Epinephelus fuscoguttatus) from Taka Bonerate National Park, District of Selayar Islands, South Sulawesi, Indonesia

Author:
Fatma; Achmar Mallawa; Najamuddin; Mukti Zainuddin; Fachrie Rezka Ayyub
Source:
Biodiversitas 2022 v.23 no.2 pp. -
ISSN:
2085-4722
Subject:
Decapoda; Epinephelus fuscoguttatus; allometry; condition factor; diet; digestive system; equations; females; males; maturity stage; national parks; piscivores; regression analysis; Indonesia
Abstract:
... Fatma, Mallawa A, Najamuddin, Zainuddin M, Ayyub FR. 2022. Biological aspects of brown-marbled grouper (Epinephelus fuscoguttatus) from Taka Bonerate National Park, District of Selayar Islands, South Sulawesi, Indonesia. Biodiversitas 23: 1140-1153. Knowledge regarding biological aspects of fishes such as the brown-marbled grouper can provide important information for fisheries management. This re ...
DOI:
10.13057/biodiv/d230259

37. Biology and population dynamics of the freshwater puffer fish, Tetraodon lineatus (Linnaeus, 1758), from the River Nile, Aswan, Egypt

Author:
Khaled Y. AbouelFadl; Mahmoud M.S. Farrag
Source:
Egyptian Journal of Aquatic Research (Online) 2021 v.47 no.1 pp. 75-80
ISSN:
1687-4285
Subject:
Tetraodon; allometry; body length; body weight; females; fish; freshwater; gonadosomatic index; growth performance; growth rings; hepatosomatic index; longevity; males; population dynamics; sex ratio; spawning; toxicology; vertebrae; Egypt; Nile River
Abstract:
... A fresh water pufferfish Tetraodon lineatus in Egypt has limited information available. A total of 350 specimens were collected monthly from the river Nile, Aswan (2019). Specimens were 13.5–38.5 cm in total length with an average of 22.16 ± 5.02 cm and a total weight of 61.7–1456 g with an average of 339.86 ± 248.85 g. The length-weight relationship showed negative allometric growth, and both abs ...
DOI:
10.1016/j.ejar.2020.09.005

38. Biometric and reproductive aspects of the pen shell Atrina seminuda (Bivalvia: Pinnidae) in northeastern Venezuela

Author:
Maria Salomé Rangel; Jeremy Mendoza; Luis Freites; Alejandro Tagliafico; José Silva; Natividad Garcia
Source:
Molluscan Research 2017 v.37 no.2 pp. 88-97
ISSN:
1448-6067
Subject:
Atrina seminuda; allometry; analysis of variance; females; fisheries; frequency distribution; gametogenesis; gender differences; males; models; muscles; spawning; traditional technology; Caribbean; Venezuela
Abstract:
... The pen shell Atrina seminuda is a target for a small artisanal Caribbean fishery; however, little is known about its biology. The length frequency distribution, biometric relations and reproduction of this species were studied in northeastern Venezuela. Using transects selected from among 360 stations a population was sampled monthly by SCUBA diving. An analysis of 1748 individuals showed a shell ...
DOI:
10.1080/13235818.2016.1231303

39. Biometric relationships of the deep-water velvet shrimp Metapenaeopsis sibogae (De Man, 1907) (Crustacea: Decapoda: Penaeidae) in Kagoshima Bay, Japan

Author:
Md. Mosaddequr Rahman; Jun Ohtomi
Source:
Zoology and ecology 2018 v.28 no.4 pp. 365-375
ISSN:
2165-8013
Subject:
Penaeidae; allometry; biometry; body weight; condition factor; energy; females; males; reproduction; sex ratio; shrimp; Japan
Abstract:
... Metapenaeopsis sibogae (De Man 1907) is a newly recorded shrimp in Japanese waters and is an emerging fisheries resource. We studied the biometric relationships of M. sibogae in Kagoshima Bay, southern Kyushu, Japan using samples collected during January to December 2014. The overall sex ratio differed significantly from a 1:1 favoring the males. A predominance of males was observed in the smaller ...
DOI:
10.1080/21658005.2018.1543113

40. Biometry, Distribution and Genetic Characterization of Blue Jack Mackerel Trachurus picturatus (Bowdich, 1825), a Rare Pelagic Fish Species in the Adriatic Sea

Author:
Barbara Zorica; Ivana Bušelić; Vanja Čikeš Keč; Vedran Vuletin; Ivana Lepen Pleić; Igor Isajlović; Ivana Radonić; Nedo Vrgoč
Source:
Diversity 2020 v.12 no.12 pp. -
ISSN:
1424-2818
Subject:
Trachurus; allometry; cytochrome b; females; fishery resources; genetic analysis; genetic structure; genetic variation; haplotypes; length; mackerel; morphometry; pelagic fish; population; research; surveys; weight; Adriatic Sea; Atlantic Ocean; Mediterranean Sea
Abstract:
... The blue jack mackerel Trachurus picturatus (Bowdich, 1825) specimens (N = 155) were collected during the MEDITS survey, done along the eastern side, precisely, of the Croatian fishing ground in July 2018. Biometrical analysis of ten morphometric and five meristic characters, as well as genetic analysis proved that the collected specimens were blue jack mackerel. The total length (TL) and weight ( ...
DOI:
10.3390/d12120463

41. Biometry, size structure and reproductive cycle of the sanded sea cucumbers Holothuria poli (Echinodermata, Holothuriidae) from the west Algerian coast

Author:
Karim Mezali; Zineb Lebouazda; Farah Slimane-Tamacha; Dina Lila Soualili
Source:
Invertebrate reproduction & development 2022 v.66 no.1 pp. 67-77
ISSN:
2157-0272
Subject:
Holothuria; allometry; biometry; body weight; coasts; databases; females; gonads; invertebrates; males; reproduction; sex ratio; sexual maturity; summer
Abstract:
... The aim of this work is to study the biometric and reproductive characteristics of a population of Holothuria poli from the west Algerian coast. The study was carried out on 256 individuals (33.25 ± 12.38 g wet weight and 196.44 ± 37.81 mm relaxed length) collected from Oran Bay between October 2016 and September 2017. All individuals showed negative allometric growth (b = 1.586) and the populatio ...
DOI:
10.1080/07924259.2022.2033331

42. Body Condition Scoring and Obesity in Captive African Side-Neck Turtles (Pelomedusidae)

Author:
Mateusz Rawski; Damian Józefiak
Source:
Annals of animal science 2014 v.14 no.3 pp. 573-584
ISSN:
2300-8733
Subject:
adults; allometry; body condition; captive animals; equations; females; juveniles; males; monitoring; obesity; pets; turtles; underweight; veterinarians
Abstract:
... African side-neck turtles (Pelomedusa subrufa and Pelusios castaneus) are popular in captivity, in many parts of the world. their natural tendency to accumulate body fat reserves may be a reason for many health issues. for keepers and veterinarians body condition scoring is an important tool in the process of management and care of the animals. therefore the main aim of the study was to formulate ...
DOI:
10.2478/aoas-2014-0037

43. Body size in Drosophila: genetic architecture, allometries and sexual dimorphism

Author:
Carreira, V.P.; Mensch, J.; Fanara, J.J.
Source:
Heredity 2009 v.102 no.3 pp. 246-256
ISSN:
0018-067X
Subject:
females; insertional mutagenesis; allometry; males; gender differences; body size; genes; insect development; line differences; Drosophila melanogaster; transposons; sexual dimorphism
Abstract:
... Even though substantial progress has been made to elucidate the physiological and environmental factors underpinning differences in body size, little is known about its genetic architecture. Furthermore, all animal species bear a specific relationship between the size of each organ and overall body size, so different body size traits should be investigated as well as their sexual dimorphism that m ...
DOI:
10.1038/hdy.2008.117
PubMed:
19018274

44. Body size, reproductive allocation, and maximum reproductive rate of two species of aphidophagous Coccinellidae exploiting the same resource

Author:
Honek, Alois; Dixon, Anthony F.G.; Martinkova, Zdenka
Source:
Entomologia experimentalis et applicata 2008 v.127 no.1 pp. 1-9
ISSN:
0013-8703
Subject:
Aphidoidea; Coccinella septempunctata; Propylea quatuordecimpunctata; adults; allometry; aphidophagous predators; body size; body weight; egg masses; eggs; females; prediction
Abstract:
... To test the predictions of allometric analyses of laboratory data on aphidophagous ladybirds, a study was carried out on a small [Propylea quatuordecimpunctata (L.); dry female body mass 3.7 mg] and large species (Coccinella septempunctata L.; 15.4 mg) (both Coleoptera: Coccinellidae) of predatory ladybird, which regularly exploit cereal aphids. In 2003-2006, females of C. septempunctata and in 20 ...
DOI:
10.1111/j.1570-7458.2007.00663.x

45. Brooding and development of Anasterias minuta (Asteroidea: Forcipulata) in Patagonia, Argentina

Author:
Damián G. Gil; Graciela Escudero; Héctor E. Zaixso
Source:
Marine biology 2011 v.158 no.11 pp. 2589-2602
ISSN:
0025-3162
Subject:
Asteroidea; allometry; body size; early development; eggs; embryogenesis; environmental factors; fecundity; females; habitats; juveniles; larvae; seawater; water temperature; winter; Argentina
Abstract:
... Brooding, embryonic and larval development, and the influence of environmental and biological factors in tidepool habitats were studied in the sea star, Anasterias minuta, at various sites along ~220 km of the Patagonian coast. This species has a benthic, lecithotrophic development that includes eight distinct developmental stages. A larval organ, the connection cord, is developed from a small pre ...
DOI:
10.1007/s00227-011-1760-1

46. The Cabrera Vole, Microtus Cabrerae, in Spain: a Biological and a Morphometric Approach

Author:
Matilde Cabrera-Mllet; Jacint Ventura; María José López-Fuster
Source:
Animal biology v.48 no.1 pp. 83-100
ISSN:
1570-7555
Subject:
Microtus cabrerae; adults; allometry; brain; breeding; dimensions; females; litter size; males; mass; mating systems; monogamy; morphometry; muscles; population; skull; spring; summer; testes; voles; Iberian Peninsula; Spain
Abstract:
... THE CABRERA VOLE, MICROTUS CABRERAE, IN SPAIN: A BIOLOGICAL AND A MORPHOMETRIC APPROACH by JACINT VENTURA1, MARÍA JOSÉ LÓPEZ-FUSTER1 and MATILDE CABRERA-MIILLET 2 (1Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 645, 08028-Barcelona, Spain; 2Diputación General de Aragón, Departamento de Agricultura y Medio Ambiente, c/ Vázquez de Mella, 10, 50071- ...
DOI:
10.1163/156854298X00237

47. Carapace length-weight and width-weight relationships of Scylla serrata in Bulungan District, North Kalimantan, Indonesia

Author:
BAMBANG WIDIGDO; RUKISAH; ASBAR LAGA; AGUS A. HAKIM; YUSLI WARDIATNO
Source:
Biodiversitas 2017 v.18 no.4 pp. 1316-1323
ISSN:
2085-4722
Subject:
Borneo; Scylla serrata; allometry; crabs; females; males; mangrove ecosystems; sex ratio; Indonesia
Abstract:
... Widigdo B, Rukisah, Laga A, Hakim AA, Wardiatno Y. 2017. Carapace length-weight and width-weight relationships of Scylla serrata in Bulungan District, North Kalimantan, Indonesia. Biodiversitas 18: 1316-1323. The mud crab, Scylla serrata lives associated with mangrove ecosystems and is widely distributed in the Indo West-Pacific. The present work was aimed to reveal the carapace length/width-weigh ...
DOI:
10.13057/biodiv/d180405

48. Catch and effort of night purse seine with emphasize to Age and Growth of lessepsian Etrumeus teres (Dekay, 1842), Mediterranean Sea, Egypt

Author:
Mahmoud M.S. Farrag; Alaa G.M. Osman; El-Sayed H. Kh Akel; Mohsen A. Moustafa
Source:
Egyptian Journal of Aquatic Research (Online) 2014 v.40 no.2 pp. 181-190
ISSN:
2090-3278
Subject:
Etrumeus; allometry; aquacultural and fisheries equipment; autumn; boats; condition factor; economic valuation; females; growth performance; habitats; herring; immigration; males; marine fisheries; otoliths; summer; winter; Egypt; Mediterranean Sea; Red Sea
Abstract:
... Catch and effort (CPUE) of the purse-seine using light, age and growth of lessepsian fish “Etrumeus teres” from the Egyptian Mediterranean waters were studied in the period 2008. It was found that, the average annual catch (CPUE) was 1.7 (ton/boat/night). The catch diversity was composed of seventeen different species. Clupeids were the dominant 74.1% of the total catch. Seven lessepsian species w ...
DOI:
10.1016/j.ejar.2014.06.003

49. Claw allometry in green crabs, Carcinus maenas: heterochely, handedness, and sex

Author:
F. Juanes; K. T. Lee; A. McKnight; K. Kellogg
Source:
Marine biology 2008 v.153 no.4 pp. 523-528
ISSN:
0025-3162
Subject:
Carcinus maenas; allometry; body size; claws; crabs; females; males; morphometry; sexual dimorphism; Maine; New Jersey
Abstract:
... Claw loss and reversal of handedness during regeneration are common phenomena in heterochelous decapod crustaceans, which typically have one large ‘crusher’ claw on the right side and a smaller ‘cutter’ claw on the left. Little is known about the relative importance of claw growth vs. body growth during claw regeneration. Here the relationship between claw size and body size of green crabs, Carcin ...
DOI:
10.1007/s00227-007-0826-6

50. Comparative Reproductive Allometry of Syntopic Black-Knobbed Sawbacks (Graptemys nigrinoda) and Alabama Map Turtles (Graptemys pulchra) in the Alabama River, with Comparison to Three Congeners

Author:
Peter V. Lindeman
Source:
Chelonian conservation and biology 2020 v.19 no.2 pp. 246-255
ISSN:
1943-3956
Subject:
Graptemys; adults; allometry; analysis of covariance; body size; body weight; clutch size; eggs; females; reproductive performance; rivers; turtles; Alabama
Abstract:
... In many freshwater turtle species, increasing adult female body size is accompanied by increases in both clutch size and egg size. Because clutch size and egg size represent competing sinks for the increasing abdominal space that can be devoted to reproductive potential as a female grows larger, both are hypoallometrically related to body size, i.e., each increases at less than the rate at which b ...
DOI:
10.2744/CCB-1399.1

51. Comparative analysis of growth performance between female and male mud crab Scylla paramamosain crablets: Evidences from a four-month successive growth experiment

Author:
Xi Shi; Jianxue Lu; Qingyang Wu; Khor Waiho; Jude Juventus Aweya; Hanafiah Fazhan; Yueling Zhang; Shengkang Li; Huaiping Zheng; Fan Lin; Cuihong You; Mhd Ikhwanuddin; Hongyu Ma
Source:
Aquaculture 2019 v.505 pp. 351-362
ISSN:
0044-8486
Subject:
Scylla paramamosain; abdomen; allometry; body weight; crabs; equations; females; fisheries; growth performance; growth traits; juveniles; males; pond culture; regression analysis; sex ratio; sexual dimorphism; China; South East Asia
Abstract:
... Mud crab (Scylla paramamosain) is an economically important crustacean species for fisheries and aquaculture industry in China and other Southeast Asian countries. In this study, the sex ratio, morphological dimorphism, and the characteristics of morphological traits between female and male S. paramamosain juveniles at three different pond-culture stages were determined. The sex ratio skewed towar ...
DOI:
10.1016/j.aquaculture.2019.02.062

52. Comparative biology of the crab Goniopsis cruentata: geographic variation of body size, sexual maturity, and allometric growth

Author:
José Jonathas Pereira Rodrigues de Lira; Tereza Cristina dos Santos Calado; Carla Ferreira Rezende; José Roberto Feitosa Silva
Source:
Helgoland marine research 2015 v.69 no.4 pp. 335-342
ISSN:
1438-387X
Subject:
abdomen; allometry; body size; crabs; environmental factors; females; geographical variation; juveniles; latitude; males; phenotypic variation; population size; sexual maturity
Abstract:
... Geographic variation of phenotypic traits is common across species and is often associated with variation in environmental conditions. Here, we found larger bodies and larger size at maturity in a northward, lower latitude population of the crab Goniopsis cruentata, which inhabits a hotter, drier environment in comparison with a southward, higher latitude population. Furthermore, the juvenile male ...
DOI:
10.1007/s10152-015-0441-8

53. Comparative morphology of the prothoracic leg in heliconian butterflies: Tracing size allometry, podite fusions and losses in ontogeny and phylogeny

Author:
Gilson R.P. Moreira; Denis S. Silva; Gislene L. Gonçalves
Source:
Arthropod structure & development 2017 v.46 no.4 pp. 462-471
ISSN:
1467-8039
Subject:
Nymphalidae; allometry; females; histology; host plants; instars; larvae; legs; males; molting; morphometry; ontogeny; oviposition sites; phylogeny; scanning electron microscopy; sensilla; walking; wings
Abstract:
... Prothoracic legs of heliconian butterflies (Nymphalidae, Heliconiinae, Heliconiini) are reduced in size compared to mesothoracic and metathoracic legs. They have no apparent function in males, but are used by females for drumming on host plants, a behavior related to oviposition site selection. Here, taking into account all recognized lineages of heliconian butterflies, we described their tarsi us ...
DOI:
10.1016/j.asd.2017.03.008

54. Comparative phylogenetic analysis of milk output at peak lactation

Author:
Alexander Riek
Source:
Comparative biochemistry and physiology 2021 v.257 pp. 110976
ISSN:
1095-6433
Subject:
allometry; body weight; energy; females; lactation; mammals; milk; phylogeny; sugars
Abstract:
... A large body of literature exists on the comparative aspects of milk nutrient concentrations of numerous species. However, in the last three decades little attention has been given to the comparative aspects of quantitative milk output and the related nutrient outputs at peak lactation, one of the most energy demanding times for the lactating female. Therefore, the purpose of the present study was ...
DOI:
10.1016/j.cbpa.2021.110976

55. Comparative sexual selection in field and laboratory in a guild of sepsid dung flies

Author:
Wolf U. Blanckenhorn; Julian Baur; Jeannine Roy; Nalini Puniamoorthy; Juan Pablo Busso; Martin A. Schäfer; Patrick T. Rohner
Source:
Animal behaviour 2021 v.175 pp. 219-230
ISSN:
0003-3472
Subject:
Sepsidae; allometry; animal behavior; captive animals; feces; females; femur; males; sexual dimorphism; sexual selection
Abstract:
... Phenomenological and behavioural studies have greatly advanced the study of natural selection. Field studies of selection well appraise the natural situation, but is this also true for laboratory studies, which are typically more mechanistic? We compared precopulatory sexual selection (mating differential based on pairing success) in field and laboratory of several closely related, ecologically si ...
DOI:
10.1016/j.anbehav.2021.03.001

56. Components of phenotypic variation in avian ornamental and non-ornamental feathers

Author:
José Javier Cuervo; Anders Pape Møller
Source:
Evolutionary ecology 2001 v.15 no.1 pp. 53-72
ISSN:
0269-7653
Subject:
allometry; birds; body size; environmental factors; feathers; females; genitalia; insects; intraspecific variation; males; mating behavior; models; phenotypic variation; sexual selection
Abstract:
... Phenotypic variation, measured as the coefficient of variation (CV), is usually larger in secondary sexual characters than in ordinary morphological traits. We tested if intraspecific differences in the CV between ornamental and non-ornamental feather traits in 67 evolutionary events of feather ornamentation in birds were due to differences in (1) the allometric pattern (slope of the regression li ...
DOI:
10.1023/A:1011913804309

57. Concentrations in plasma and selected tissues of marbofloxacin after oral and intravenous administration in Bilgorajska geese (Anser anser domesticus)

Author:
I Sartini; B Łebkowska-Wieruszewska; A Lisowski; A Poapolathep; H Owen; M Giorgi
Source:
New Zealand veterinary journal 2020 v.68 no.1 pp. 31-37
ISSN:
1176-0710
Subject:
Anser anser; allometry; bacteria; bioavailability; blood sampling; females; geese; heart; high performance liquid chromatography; intravenous injection; kidneys; liver; lungs; marbofloxacin; maximum residue limits; minimum inhibitory concentration; muscles; oral administration; pharmacodynamics; pharmacokinetics; slaughter; tissues
Abstract:
... Aims: To determine the pharmacokinetics and tissue depletion of 2 mg/kg marbofloxacin (MBX) in Bilgorajska geese (Anser anser domesticus) after I/V and oral administration, to calculate the daily dose from experimental data and to compare it with that calculated by allometric scaling. Methods: Eight clinically normal female Bilgorajska geese were used in a three-phase study with a 3-week wash-out ...
DOI:
10.1080/00480169.2019.1658553

58. Condition dependence of male and female genital structures in the seed beetle Callosobruchus maculatus (Coleoptera: Bruchidae)

Author:
L. Cayetano; R. Bonduriansky
Source:
Journal of evolutionary biology 2015 v.28 no.7 pp. 1364-1372
ISSN:
1010-061X
Subject:
Callosobruchus maculatus; aedeagus; allometry; body size; diet; female genitalia; females; larvae; males; mung beans; nutrients; nutritional adequacy
Abstract:
... Theory predicts that costly secondary sexual traits will evolve heightened condition dependence, and many studies have reported strong condition dependence of signal and weapon traits in a variety of species. However, although genital structures often play key roles in intersexual interactions and appear to be subject to sexual or sexually antagonistic selection, few studies have examined the cond ...
DOI:
10.1111/jeb.12659

59. Conditional male dimorphism and alternative reproductive tactics in a Neotropical arachnid (Opiliones)

Author:
Buzatto, Bruno A.; Requena, Gustavo S.; Lourenço, Rafael S.; Munguía-Steyer, Roberto; Machado, Glauco
Source:
Evolutionary ecology 2011 v.25 no.2 pp. 331-349
ISSN:
0269-7653
Subject:
Opiliones; allometry; arthropods; body size; dimorphism; evolutionarily stable strategy; females; genetic correlation; genetic variation; legs; males; mark-recapture studies; mating behavior; models; morphs; phenotype; tropics
Abstract:
... In arthropods, most cases of morphological dimorphism within males are the result of a conditional evolutionarily stable strategy (ESS) with status-dependent tactics. In conditionally male-dimorphic species, the status' distributions of male morphs often overlap, and the environmentally cued threshold model (ET) states that the degree of overlap depends on the genetic variation in the distribution ...
DOI:
10.1007/s10682-010-9431-0

60. Consequences of paternal care on pectoral fin allometry in a desert-dwelling fish

Author:
Emile van Lieshout; P. Andreas Svensson; Bob B. M. Wong
Source:
Behavioral ecology and sociobiology 2013 v.67 no.3 pp. 513-518
ISSN:
0340-5443
Subject:
Gobiidae; allometry; anaerobic conditions; body size; females; fins; fish; head; males; sexual dimorphism; sexual selection
Abstract:
... Positive static allometry is a scaling relationship where the relative size of traits covaries with adult body size. Traditionally, positive allometry is thought to result from either altered physiological requirements at larger body size or from strongly condition-dependent allocation under sexual selection. Yet, there are no theoretical reasons why positive allometry cannot evolve in fitness-rel ...
DOI:
10.1007/s00265-012-1470-9

61. Contamination effects on sexual selection in wild dung beetles

Author:
Sebastián Villada‐Bedoya; Alex Córdoba‐Aguilar; Federico Escobar; Daniel González‐Tokman
Source:
Journal of evolutionary biology 2022 v.35 no.7 pp. 905-918
ISSN:
1010-061X
Subject:
Copris incertus; Euoniticellus intermedius; allometry; body size; body weight; feces; fecundity; females; herbicides; ivermectin; males; sexual dimorphism; sexual selection
Abstract:
... Sexual selection influences the expression of secondary sexual traits, which are costly to produce and maintain and are thus considered honest indicators of individual condition. Therefore, sexual selection could select for high‐quality individuals able to respond to stressful conditions, with impacts on population‐level fitness. We sampled dung beetles from 19 pastures and investigated if contami ...
DOI:
10.1111/jeb.14024

62. Controls over reproductive phenology among ungulates: allometry and tropical‐temperate contrasts

Author:
Norman Owen‐Smith; Joseph O. Ogutu
Source:
Ecography 2013 v.36 no.3 pp. 256-263
ISSN:
0906-7590
Subject:
allometry; body condition; conception; females; forage quality; gestation period; growing season; latitude; nutrition; parturition; phenology; plant growth; planting date; progeny; rain; savannas; ungulates
Abstract:
... Ungulates inhabiting high latitudes schedule the timing of conceptions so that offspring are born during the most favourable nutritional conditions for reproductive success. The optimal period for births is less reliably predictable in tropical and subtropical savanna environments where plant growth is governed by rainfall, suggesting that reproductive phenology could be influenced more proximatel ...
DOI:
10.1111/j.1600-0587.2012.00156.x

63. Cranial variability of the Serbian golden jackal: Geographic variation, sexual dimorphism and allometry

Author:
Jelena Porobić; Duško Ćirović; Vida Jojić
Source:
Zoologischer Anzeiger 2016 v.261 pp. 38-47
ISSN:
0044-5231
Subject:
Canis aureus; adults; allometry; feeding behavior; females; founder effect; geographical variation; geometry; males; monogamy; morphometry; omnivores; reproductive system; sexual dimorphism; skull; Balkans; Serbia
Abstract:
... Geometric morphometric approaches were employed for the first time to explore skull size and shape changes in golden jackal (Canis aureus) from Serbia. We examined three different, but connected aspects of its cranial variability: geographic variation, sexual dimorphism and allometry. To elucidate the pattern of cranial size and shape variation, we analyzed ventral crania of subadults and adults f ...
DOI:
10.1016/j.jcz.2016.03.004

64. Cranial variability of the Serbian red fox

Author:
Vida Jojić; Jelena Porobić; Duško Ćirović
Source:
Zoologischer Anzeiger 2017 v.267 pp. 41-48
ISSN:
0044-5231
Subject:
Vulpes vulpes; agricultural land; allometry; bones; diet; dogs; females; geometry; habitats; males; morphometry; sexual dimorphism; Serbia
Abstract:
... We used geometric morphometric techniques to examine variability in Serbian red fox (Vulpes vulpes) crania. Male crania are about 5% larger than female ones and sexual size dimorphism (SSD) was significant. Also, significant cranial shape differences were found between the sexes. Males are characterized by reduced basicranial, but broader rostral and zygomatic regions. Although a slight and signif ...
DOI:
10.1016/j.jcz.2017.02.001

65. Deceived, but not betrayed: static allometry suggests female ornaments in the long-tailed dance fly (Rhamphomyia longicauda) exaggerate condition to males [Erratum: August 2022, v.36(4); pp.737-739]

Author:
Jessica H. Browne; Darryl T. Gwynne
Source:
Evolutionary ecology 2022 v.36 no.4 pp. 631-641
ISSN:
0269-7653
Subject:
abdomen; allometry; body size; eggs; evolution; fecundity; females; femur; males; tibia
Abstract:
... Despite their prevalence in nature, the evolution of sex-specific female ornaments is still not well understood. Although in some cases (often carotenoid-based ornaments) they appear to honestly signal quality, such as fecundity, it has been suggested that some female ornaments evolved to deceptively obtain matings. One such case is the long-tailed dance fly (Rhamphomyia longicauda) where females ...
DOI:
10.1007/s10682-021-10148-3

66. Demographics and length and weight relationships of commercially important sharks along the north‐western coast of India

Author:
Alissa Barnes; Dipani Sutaria; Alastair V. Harry; Rima W. Jabado
Source:
Aquatic conservation 2018 v.28 no.6 pp. 1374-1383
ISSN:
1052-7613
Subject:
Rhizoprionodon acutus; allometry; coasts; demographic statistics; females; fishing boats; life history; males; monsoon season; mortality; neonates; seasonal variation; sex ratio; sharks; India
Abstract:
... Biological data including size, sex ratios, male maturity, and length and weight relationships for four commercially important shark species, including the milk shark (Rhizoprionodon acutus Rüppell, 1837), the grey sharpnose shark (Rhizoprionodon oligolinx Springer, 1964), the spadenose shark (Scoliodon laticaudus Muller & Henle, 1838), and the bigeye smoothhound shark (Iago omanensis Norman, 1939 ...
DOI:
10.1002/aqc.2940

67. Diet of the European badgers (Meles meles) in urban and rural areas of Norway

Author:
Duarte J. Gomes; Izabela A. Wierzbowska; Kjetil Bevanger; Declan T. O’Mahony; Kaja Rola
Source:
European journal of wildlife research 2020 v.66 no.1 pp. 7
ISSN:
1612-4642
Subject:
Meles meles; allometry; autumn; badgers; birds; diet; earthworms; females; fruits; grains; habitats; humans; insects; males; omnivores; rural areas; seasonal variation; small mammals; spring; stomach; summer; urban areas; wildlife; Norway
Abstract:
... The constant expansion of urban habitats provides new opportunities for various wildlife species, referred to as urban exploiters or adapters that allow them to thrive in new conditions. The Eurasian badger (Meles meles) can adapt to and exploit urban ecosystems due to its omnivorous behaviour but the species expansion into this habitat can cause conflict with humans, and there is a paucity of dat ...
DOI:
10.1007/s10344-019-1347-6

68. Dietary CP and amino acid restriction has a different impact on the dynamics of protein, amino acid and fat deposition in entire male, castrated and female pigs

Author:
I. Ruiz-Ascacibar; P. Stoll; M. Kreuzer; G. Bee
Source:
Animal 2019 v.13 no.1 pp. 74-82
ISSN:
1751-732X
Subject:
Large White; allometry; boars; breeding; castration; cysteine; diet; females; genotype; lipid content; lysine; methionine; nutritional intervention; phenylalanine; temporal variation; threonine; tryptophan; valine
Abstract:
... Breeding efforts over the last decades altered markedly empty body (EB) composition of pigs. This study aimed to re-evaluate the dynamics of changes in the composition and deposition rate of fat, protein and amino acids (AA) in the EB from birth to 140 kg BW depending on the dietary CP and AA supply in a current pig genotype. In the experiment 66 entire male, 58 castrated and 66 female Swiss Large ...
DOI:
10.1017/S1751731118000770
PubMed:
29789036 29789036

69. Differences between Northern and Southern Female Coyotes

Author:
Alina Gabriela Monroy-Gamboa
Source:
Western North American naturalist 2022 v.82 no.1 pp. 183-189
ISSN:
1527-0904
Subject:
Canis latrans; allometry; body size; carnivores; females; latitude; litter size; Central America
Abstract:
... The coyote (Canis latrans) has a wide distribution range, spanning boreal forests from the north of the continent to tropical environments in Central America, showing great adaptation and plasticity. Bergmann's rule states that individuals inhabiting colder climates are larger than those in warmer climates. It is suggested that in carnivore species, litter size is influenced by allometric constrai ...
DOI:
10.3398/064.082.0119

70. Differences in caste dimorphism among three hornet species (Hymenoptera: Vespidae): forewing size, shape and allometry

Author:
A. PERRARD; C. VILLEMANT; J. M. CARPENTER; M. BAYLAC
Source:
Journal of evolutionary biology 2012 v.25 no.7 pp. 1389-1398
ISSN:
1010-061X
Subject:
Vespa; allometry; dimorphism; females; imaginal discs; labor; models; morphometry; natural history; wings
Abstract:
... Caste shape dimorphism (CShD) has previously been studied in wasps through comparison of different body parts, originating from different imaginal discs. Using geometric morphometrics with a new protocol for measuring wings of pinned specimens from natural history collections, we tested CShD of three hornet species in an organ developed from a single imaginal disc: the forewing. Gaussian mixture m ...
DOI:
10.1111/j.1420-9101.2012.02527.x
PubMed:
22551305

71. Differences in growth and carcass composition of growing male and female turkeys

Author:
Eva Tůmová; Robert Mervyn Gous; Darina Chodová; Mohamed Ketta
Source:
Czech Journal of Animal Science v.65 no.No. 9. pp. 330-336
ISSN:
1212-1819
Subject:
allometry; body weight; breasts; carcass composition; equations; feed intake; females; genotype; gizzard; growth performance; heart; liver; males
Abstract:
... An experiment was conducted with 1 680 one-day-old turkey poults (720 males and 960 females) of the Hybrid ConverterTM genotype to compare the growth performance of male and female turkeys. The experiment lasted until 119 days of age for males and 126 days for females, during which 6 commercial-type feeds were administered, with changes occurring at 21, 42, 63, 84 and 102 days of age. P ...
DOI:
10.17221/180/2020-cjas

72. Distribution, age and growth of the diamondback squid, Thysanoteuthis rhombus (Cephalopoda: Thysanoteuthidae) from the tropical Arabian Sea

Author:
Kurichithara K. Sajikumar; Geetha Sasikumar; V. Venkatesan; R. Vidya; P.S. Alloycious; K.M. Jestin Joy; P.S. Karamathullah; G.D. Nataraja; Kolliyil S. Mohamed
Source:
Fisheries research 2020 v.224 pp. 105478
ISSN:
0165-7836
Subject:
Cephalopoda; Crustacea; adults; allometry; animal growth; body length; body weight; diet; females; fish; juveniles; males; ontogeny; squid; stomach; Arabian Sea
Abstract:
... Individuals in all life stages of the large oceanic diamondback squid Thysanoteuthis rhombus were observed in the southeastern Arabian Sea. A total of 82 individuals were collected from the Arabian Sea between February 2013 and December 2018. The length-weight relationship follows an allometric growth pattern. Age and growth were estimated by statolith increment analysis (n = 77) and demonstrated ...
DOI:
10.1016/j.fishres.2019.105478

73. Do males with higher mating success invest more in armaments? An across‐populations study in damselflies

Author:
SZYMON SNIEGULA; MONIKA A. PRUS; MARIA J. GOLAB; DAVID OUTOMURO
Source:
Ecological entomology 2017 v.42 no.4 pp. 526-530
ISSN:
0307-6946
Subject:
Lestes; allometry; appendages; body size; females; latitude; males; reproductive behavior; reproductive success
Abstract:
... 1. Males with higher mating success would be expected to invest more in traits that facilitate mating, leading to steeper allometry of those traits with respect to body size. Across‐population studies following latitudinal variation in male mating success are an excellent study system to address this question. 2. Males of the damselfly Lestes sponsa were used to investigate whether the allometric ...
DOI:
10.1111/een.12397

74. Do social environments affect the use of exaggerated traits in the dobsonfly Corydalus bidenticulatus?

Author:
Hugo Alejandro Álvarez; Juan Hector García‐Chávez; Jorge Alejandro Cebada‐Ruiz
Source:
Entomological science 2017 v.20 no.1 pp. 168-176
ISSN:
1343-8786
Subject:
Corydalus; aggression; allometry; antennae; females; insect behavior; insects; male genitalia; males; sexual behavior; sexual dimorphism; social environment; teeth
Abstract:
... Male–male competition is strongly affected by female presence. In insects with primitive features such as megalopterans, however, it is not known how aggressiveness is expressed in the context of female presence. Here we examined the effect of social environments on the use of secondary sexual traits in the sexual behavior of the Mexican dobsonfly Corydalus bidenticulatus (Megaloptera: Corydalidae ...
DOI:
10.1111/ens.12249

75. Does plant allometry predict biased sex allocation in Triadica sebifera (L.) small (Euphorbiaceae)?

Author:
Courtney H. Babin; Jerome J. Howard
Source:
Plant ecology 2019 v.220 no.4-5 pp. 529-539
ISSN:
1385-0237
Subject:
Triadica sebifera; allometry; dry matter partitioning; females; introduced plants; invasive species; life history; males; monoecy; seed germination; seed size; seeds; sex allocation; trees
Abstract:
... Early seed production by non-native plants may be important to their successful establishment and spread. Understanding the mechanisms underlying age- or size-biased seed production in introduced plants may also identify factors that contribute to propagule pressure and their success as invaders. Here, we asked whether differences in male and female reproductive allocation among individuals of the ...
DOI:
10.1007/s11258-019-00933-0

76. Does wing shape of andromorph females of Calopteryx splendens (Harris, 1780) resemble that of males?

Author:
Marco Matteo Gallesi; Roberto Sacchi; Sönke Hardersen
Source:
International journal of odonatology 2015 v.18 no.4 pp. 305-315
ISSN:
2159-6719
Subject:
Calopteryx splendens; allometry; color; females; flight; males; morphometry; morphs; pigmentation; sexual dimorphism; wings
Abstract:
... Female limited polymorphism consists in the coexistence of two or more female morphs in the same population and is widespread among odonates. Generally, one female morph, the andromorph, resembles males in colour or, sometimes, also in morphology and behaviour, while one or more other morphs, gynomorphs, differ from males. This phenomenon is probably promoted by advantages to females which arise f ...
DOI:
10.1080/13887890.2015.1085457

77. Domestic chickens defy Rensch's rule: sexual size dimorphism in chicken breeds

Author:
REMEŠ, V.; SZÉKELY, T.
Source:
Journal of evolutionary biology 2010 v.23 no.12 pp. 2754-2759
ISSN:
1010-061X
Subject:
chickens; partridges; dimorphism; meat production; humans; wild relatives; chicken breeds; allometry; fighting behavior; Gallus gallus; ecology; males; pheasants; grouse; eggs; females
Abstract:
... Sexual size dimorphism (SSD), i.e. the difference in sizes of males and females, is a key evolutionary feature that is related to ecology, behaviour and life histories of organisms. Although the basic patterns of SSD are well documented for several major taxa, the processes generating SSD are poorly understood. Domesticated animals offer excellent opportunities for testing predictions of functiona ...
DOI:
10.1111/j.1420-9101.2010.02126.x
PubMed:
21121089

78. Dynamics of de novo vitellogenesis in fish with indeterminate fecundity: an application of oocyte packing density theory to European anchovy, Engraulis encrasicolus

Author:
Eudoxia Schismenou; Stylianos Somarakis; Anders Thorsen; Olav S. Kjesbu
Source:
Marine biology 2012 v.159 no.4 pp. 757-768
ISSN:
0025-3162
Subject:
linear models; allometry; fecundity; fish; Engraulis encrasicolus; eggs; oocytes; females; vitellogenesis; crops
Abstract:
... De novo vitellogenesis is common among teleosts; however, its dynamics and the timing of batch recruitment are poorly understood. In this study, we combine a suite of methods and theories in fish reproductive biology (oocyte packing density, stereology, ovarian allometry, oocyte size frequencies and postovulatory follicle [POF] ageing) to reconstruct the steps and timing of batch recruitment in Eu ...
DOI:
10.1007/s00227-011-1852-y

79. Dynamics of the mineral composition and deposition rates in the empty body of entire males, castrates and female pigs

Author:
I. Ruiz-Ascacibar; P. Stoll; G. Bee; P. Schlegel
Source:
Animal 2019 v.13 no.5 pp. 950-958
ISSN:
1751-732X
Subject:
Large White; allometry; bile; blood; body protein; bone mineralization; calcium; castration; copper; dietary protein; electrolytes; equations; females; intestines; iron; low protein diet; lysine; magnesium; males; manganese; mineral content; minerals; phosphorus; potassium; protein content; protein deposition; sodium; swine; threonine; tryptophan; zinc
Abstract:
... Mineral composition and relative deposition rates in the pig’s body are used to assess the mineral net requirements for growth and input–output balances. The study aimed to examine the dynamics of changes in mineral composition and deposition rates in the empty body (EB) from birth to 140 kg BW depending on dietary protein supply. In the experiment, 66 entire male, 58 castrated and 66 female Swiss ...
DOI:
10.1017/S1751731118002495
PubMed:
30324903 30324903

80. Echocardiographic assessment of right ventricular systolic function in conscious healthy dogs: Repeatability and reference intervals

Author:
Lance C. Visser; Brian A. Scansen; Karsten E. Schober; John D. Bonagura
Source:
Journal of veterinary cardiology 2015 v.17 no.2 pp. 83-96
ISSN:
1760-2734
Subject:
adults; allometry; body weight; cardiovascular diseases; correlation; deformation; dogs; echocardiography; females; heart rate; males
Abstract:
... To determine the feasibility, repeatability, intra- and interobserver variability, and reference intervals for 5 echocardiographic indices of right ventricular (RV) systolic function: tricuspid annular plane systolic excursion (TAPSE), fractional area change (FAC), pulsed wave tissue Doppler imaging-derived systolic myocardial velocity of the lateral tricuspid annulus (S'), and speckle-tracking ec ...
DOI:
10.1016/j.jvc.2014.10.003

81. Echocardiographic reference intervals in healthy UK deerhounds and prevalence of preclinical dilated cardiomyopathy: a prospective, longitudinal study

Author:
E. Dutton; P. Cripps; S.A.F. Helps; J. Harris; J. Dukes-McEwan
Source:
Journal of veterinary cardiology 2022 v.40 pp. 142-155
ISSN:
1760-2734
Subject:
allometry; body weight; cardiomyopathy; echocardiography; females; longitudinal studies; males
Abstract:
... Sighthounds have high echocardiographic (ECHO) left ventricular volumes. Establishing robust breed-specific ECHO reference intervals (RI) for screening is important. End-diastolic volume index (EDVI), end-systolic volume index (ESVI) and ejection fraction (EF) reference ranges derived by Simpson's method of discs are not available for deerhounds. The influence of sex or body weight (BW) on left ve ...
DOI:
10.1016/j.jvc.2021.04.001

82. Echocardiographic reference intervals with allometric scaling of 823 clinically healthy rhesus macaques (Macaca mulatta)

Author:
Yu Ueda; Laetitia M. M. Duler; Kami J. Elliot; Paul-Michael D. Sosa; Jeffrey A. Roberts; Joshua A. Stern
Source:
BMC veterinary research 2020 v.16 no.1 pp. 348
ISSN:
1746-6148
Subject:
Macaca mulatta; age; allometry; body weight; correlation; echocardiography; females; heart diseases; heart rate; ketamine; males; regression analysis; sedation; veterinary medicine; weight
Abstract:
... BACKGROUND: Echocardiography is commonly used for assessing cardiac structure and function in various species including non-human primates. A few previous studies reported normal echocardiographic reference intervals of clinically healthy rhesus macaques under sedation. However, these studies were under-powered, and the techniques were not standardized. In addition, body weight, age, and sex match ...
DOI:
10.1186/s12917-020-02578-y

83. Ecological plasticity of denning chronology by American black bears and brown bears

Author:
Nicholas L. Fowler; Jerrold L. Belant; Guiming Wang; Bruce D. Leopold
Source:
Global ecology and conservation 2019 pp. -
ISSN:
2351-9894
Subject:
Ursus americanus; Ursus arctos; allometry; energy conservation; females; food availability; forage; growing season; linear models; males; meta-analysis; prediction; reproduction; snow; North America
Abstract:
... Ecological plasticity may index the capacity of individuals, populations, and species to respond to stochasticity. Few studies have demonstrated mechanisms influencing expression of plasticity and less have addressed proximate and causal mechanisms at multiple scales. We used linear models and meta-analyses to investigate factors influencing among and within population plasticity in den chronology ...
DOI:
10.1016/j.gecco.2019.e00750

84. Effect of eco-physiological factors on biometric traits of green mussel Perna viridis cultured in the south-east coast of the Bay of Bengal, Bangladesh

Author:
Aysha Rahi Noor; Abrar Shakil; Nayeema Ferdausy Hoque; Md Moshiur Rahman; Sumi Akter; Avijit Talukder; Sk Ahmad-Al-Nahid; Md Abdul Wahab; Md Nahiduzzaman; Md Jalilur Rahman; Md Asaduzzaman
Source:
Aquaculture reports 2021 v.19 pp. 100562
ISSN:
2352-5134
Subject:
Perna viridis; allometry; aquaculture; biodiversity conservation; biometry; coasts; correlation; data collection; dimensions; discriminant analysis; ecophysiology; environmental factors; females; food availability; gonadosomatic index; height; information; ingestion; knowledge; length; males; mussels; oxygen; plankton; principal component analysis; regression analysis; salinity; temperature; tissue weight; tissues; turbidity; variability; weight; width; Bangladesh; Bay of Bengal
Abstract:
... Information on allometry, condition indices (CIs), and biometric traits (BTs) of marine bivalves are necessary for determining the growth pattern and the size at which harvest can be intensified to maximize production in aquaculture. These parameters of marine bivalves are largely regulated by the complex interactive effects of various ecological and physiological factors. Therefore, the present s ...
DOI:
10.1016/j.aqrep.2020.100562

85. Effect of larval growth conditions on adult body mass and long-distance flight endurance in a wood-boring beetle: Do smaller beetles fly better?

Author:
Stav Brown; Victoria Soroker; Gal Ribak
Source:
Journal of insect physiology 2017 v.98 pp. 327-335
ISSN:
0022-1910
Subject:
flight muscles; Batocera; mangoes; sawdust; flight; insect physiology; figs; fruit trees; tree trunk; imagos; females; leaves; hosts; pests; larvae; branches; eggs; rearing; allometry; larval development; death; bark
Abstract:
... The tropical fig borer, Batocera rufomaculata De Geer, is a large beetle that is a pest on a number of fruit trees, including fig and mango. Adults feed on the leaves and twigs and females lay their eggs under the bark of the tree. The larvae bore into the tree trunk, causing substantial damage that may lead to the collapse and death of the host tree. We studied how larval development under inferi ...
DOI:
10.1016/j.jinsphys.2017.02.008

86. Effect of selection for growth rate on relative growth in rabbits

Author:
Pascual, M.; Pla, M.; Blasco, A.
Source:
Journal of animal science 2008 v.86 no.12 pp. 3409-3417
ISSN:
0021-8812
Subject:
rabbits; temporal variation; animal growth; carcass characteristics; selection response; body conformation; equations; dressing percentage; allometry; organ meats; males; inedible offal; body composition; gender differences; artificial selection; animal development; females; animal tissues
Abstract:
... The effect of selection for growth rate on relative growth of the rabbit body components was studied. Animals from the 18th generation of a line selected for growth rate were compared with a contemporary control group formed with offspring of embryos that were frozen at the seventh generation of selection of the same line. A total of 313 animals were slaughtered at 4, 9, 13, 20, and 40 wk old. The ...
DOI:
10.2527/jas.2008-0976
PubMed:
18641174

87. Effects of body size on sex‐related migration vary between two closely related gull species with similar size dimorphism

Author:
DAVY S. BOSMAN; HARRY J. P. VERCRUIJSSE; ERIC W. M. STIENEN; MAGDA VINCX; LIESBETH DE NEVE; LUC LENS
Source:
Ibis 2012 v.154 no.1 pp. 52-60
ISSN:
0019-1019
Subject:
Larus argentatus; adults; allometry; body size; breeding; dimorphism; females; males; migratory behavior; phylogeny; sympatry
Abstract:
... Studies of migration have revealed multiple trade‐offs with other life‐history traits that may underlie observed variation in migratory properties among ages and sexes. To assess whether, and to what extent, body size and/or sex‐specific differences in competition for resources (e.g. breeding territories or winter food) may shape variation in migration distance and timing of arrival in ecolo ...
DOI:
10.1111/j.1474-919X.2011.01182.x

88. Effects of fat and exoskeletal mass on the mass scaling of metabolism in Carabidae beetles

Author:
Bartosz W. Schramm; Agnieszka Gudowska; Andrzej Antoł; Anna Maria Labecka; Ulf Bauchinger; Jan Kozłowski; Marcin Czarnoleski
Source:
Journal of insect physiology 2018 v.106 pp. 232-238
ISSN:
0022-1910
Subject:
Carabidae; allometry; biochemical pathways; exoskeleton; females; insect physiology; lipids; males; metabolism; phylogeny
Abstract:
... The rate at which organisms metabolize resources and consume oxygen is tightly linked to body mass. Typically, there is a sub-linear allometric relationship between metabolic rates and body mass (mass-scaling exponent b < 1). The origin of this pattern remains one of the most intriguing and hotly debated topics in evolutionary physiology. A decrease in mass-specific metabolic rates in larger organ ...
DOI:
10.1016/j.jinsphys.2017.10.002

89. Effects of larval dietary restriction on adult morphology, with implications for flight and life history

Author:
Carol L. Boggs; Kristjan Niitepõld
Source:
Entomologia experimentalis et applicata 2016 v.159 no.2 pp. 189-196
ISSN:
0013-8703
Subject:
Speyeria; Viola sororia; abdomen; ad libitum feeding; allometry; diet; dietary restriction; environmental factors; females; head; imagos; insect flight; instars; larvae; males; malnutrition; meadows; reproduction; thorax; univoltine habit; wings
Abstract:
... Many morphological traits of adult insects show a plastic response to larval environmental conditions. Past studies of Lepidoptera, other than on irruptive species, focused on species with specific ecologies or life histories. These studies must be interpreted in the context of past selection associated with those specializations. Here, we examined the effects on adult morphology of quantitative d ...
DOI:
10.1111/eea.12420

90. Effects of restricted feeding of prepubertal ewe lambs on growth performance and mammary gland development

Author:
Villeneuve, L.; Cinq-Mars, D.; Lacasse, P.
Source:
Animal 2010 v.4 no.6 pp. 944-950
ISSN:
1751-7311
Subject:
lambs; females; lamb feeding; restricted feeding; ad libitum feeding; risk assessment; adverse effects; puberty; mammary glands; feed conversion; compensatory growth; allometry; histology; animal tissues; tissue weight
Abstract:
... The aim of this study was to determine the effects of restricted feeding before puberty on growth performance and mammary gland development in replacement ewe lambs. At weaning, 72 Dorset ewe lambs were assigned to one of the three diets: an ad libitum control diet with medium-quality forage (MQF; diet A-MQF); a restricted diet with the same forage as A, but less feed concentrate (diet R-MQF); or ...
DOI:
10.1017/S1751731110000170
PubMed:
22444267

91. Effects of size, sex and teneral resources on the resistance to hydric stress in the tephritid fruit fly Anastrepha ludens

Author:
M.T. Tejeda; J. Arredondo; D. Pérez-Staples; P. Ramos-Morales; P. Liedo; F. Díaz-Fleischer
Source:
Journal of insect physiology 2014 v.70 pp. 73-80
ISSN:
0022-1910
Subject:
Anastrepha ludens; adults; allometry; females; fruit flies; insect physiology; lipids; males; resource allocation; sexual dimorphism; starvation; stress tolerance
Abstract:
... Water availability is recognized as one of the most important factors in the distribution and activity of terrestrial organisms. In the case of insects, hydric stress imposes a major challenge for survival because of the small surface-area-to-volume ratio they exhibit. In general, stress resistance is expected to co-vary positively with size; however, this pattern can become obscured in insects th ...
DOI:
10.1016/j.jinsphys.2014.08.011

92. Effects of spine damage and microhabitat on resource allocation of the purple sea urchin Strongylocentrotus purpuratus (Stimpson 1857)

Author:
Nathan Haag; Michael P. Russell; Jose Carlos Hernandez
Source:
Journal of experimental marine biology and ecology 2016 v.482 pp. 106-117
ISSN:
0022-0981
Subject:
Strongylocentrotus purpuratus; adults; allometry; diet; females; gametogenesis; grazing; life history; littoral zone; males; microhabitats; morphometry; oocytes; predators; reproductive performance; resource allocation
Abstract:
... Though phenotypically plastic responses in echinoids are well studied, the majority of the literature examines the effect of altered diet. Some species, however, such as the purple sea urchin, Strongylocentrotus purpuratus, occur over a large geographic range and thus experience a variety of substrate types and wave forces. To determine whether these factors impact resource allocation in adult int ...
DOI:
10.1016/j.jembe.2016.05.005

93. Effects on running speed of changes in sexual size dimorphism at maturity on in the cursorial huntsman spider, Delena cancerides (Sparassidae)

Author:
Jacob A. Hurst; Linda S. Rayor
Source:
Journal of comparative physiology 2021 v.207 no.2 pp. 269-277
ISSN:
0340-7594
Subject:
Sparassidae; adults; allometry; body weight; females; instars; males; molting; morphometry; predation; risk; sexual dimorphism; sexual maturity; spiders
Abstract:
... Running speed is a measure of whole-organism performance reflecting relative fitness. For spiders, increased speed translates into enhanced prey capture, mating success and reduced predation risk. In male spiders, leg length increases dramatically with the molt to sexual maturity. To determine how changes in leg length and body mass with sexual maturity influence running performance, we compared a ...
DOI:
10.1007/s00359-021-01469-3

94. Egg production of the burrowing shrimp Callichirus seilacheri (Bott 1955) (Decapoda, Callianassidae) in northern Chile

Author:
Patricio Hernáez; Sergio Palma; Ingo S. Wehrtmann
Source:
Helgoland marine research 2008 v.62 no.4 pp. 351
ISSN:
1438-387X
Subject:
Decapoda; abdomen; allometry; burrows; coasts; correlation; egg production; egg weight; eggs; embryogenesis; fecundity; females; littoral zone; sediments; shrimp; water temperature; Chile
Abstract:
... The thalassinidean shrimp Callichirus seilacheri is a common species in the intertidal zone of the South American Pacific coast. However, our knowledge of its reproductive ecology is rather limited. The present study was carried out between January and December 2003 at Las Machas, northern Chile. Although ovigerous females were encountered almost throughout the study period, they were particularly ...
DOI:
10.1007/s10152-008-0122-y

95. Egg size variation in European Satyrine butterflies (Nymphalidae, Satyrinae)

Author:
Garcia-Barros, E.
Source:
Biological journal of the Linnean Society 1994 v.51 no.3 pp. 309-324
ISSN:
0024-4066
Subject:
Nymphalidae; ova; allometry; wings; length; latitude; gender differences; females; body size; Spain
Abstract:
... The interspecific relationships between egg size and female size, sexual size dimorphism, latitude, preoviposition and egg-laying behaviour, was investigated in European Satyrine butterflies by controlling for taxonomic relatedness and by simple cross-species comparisons. Egg size scales positively to female size, although the relationship is not significant (but nearly so) when taxonomic effects ...
DOI:
10.1111/j.1095-8312.1994.tb00964.x

96. Energetics and carbon budgets of dominant calanoid copepods in the northern Benguela upwelling system

Author:
Anna Schukat; Lena Teuber; Wilhelm Hagen; Norbert Wasmund; Holger Auel
Source:
Journal of experimental marine biology and ecology 2013 v.442 pp. 1-9
ISSN:
0022-0981
Subject:
temperature; Copepoda; metabolism; phytoplankton; energy; allometry; grazing; respiratory rate; models; carbon cycle; carbon; Dinophyceae; dormancy; energy requirements; biomass; ingestion; females; Bacillariophyceae; trophic relationships
Abstract:
... Respiration rates of 16 calanoid copepod species from the northern Benguela upwelling system were measured on board RRS Discovery in September/October 2010 to determine their energy requirements and assess their significance in the carbon cycle. Individual respiration rates were standardised to a mean copepod body mass and a temperature regime typical of the northern Benguela Current. These adjust ...
DOI:
10.1016/j.jembe.2013.01.024

97. Energetics and space use: intraspecific and interspecific comparisons of movements and home ranges of two Colubrid snakes

Author:
Carfagno, Gerardo L.F.; Weatherhead, Patrick J.
Source:
Journal of animal ecology 2008 v.77 no.2 pp. 416-424
ISSN:
0021-8790
Subject:
Elaphe obsoleta; allometry; birds; energy requirements; females; home range; males; mammals; prediction; snakes; Illinois; Ontario
Abstract:
... 1. Energy requirements explain substantial variation in movement and home range size among birds and mammals. This study assesses whether the same is true of snakes by comparing ratsnakes (Elaphe obsoleta) and racers (Coluber constrictor), ecologically similar species whose energy requirements appear to differ substantially (racers > ratsnakes). 2. Over 4 years 22 Elaphe and 16 Coluber were radio- ...
DOI:
10.1111/j.1365-2656.2008.01342.x
PubMed:
18254921

98. Energy acquisition and allocation to egg production in relation to fish reproductive strategies

Author:
Richard S McBride; Stylianos Somarakis; Gary R Fitzhugh; Anu Albert; Nathalia A Yaragina; Mark J Wuenschel; Alexandre Alonso‐Fernández; Gualtiero Basilone
Source:
Fish and fisheries 2015 v.16 no.1 pp. 23-57
ISSN:
1467-2960
Subject:
adults; allometry; animal breeding; capital; ecosystems; egg production; eggs; energy; environmental factors; fecundity; females; fish; fisheries; income; latitude; ontogeny; oogenesis; spawning
Abstract:
... Oogenesis in fishes follows a universal plan; yet, due to differences in the synchrony and rate of egg development, spawning frequency varies from daily to once in a lifetime. Some species spawn and feed in separate areas, during different seasons, by storing energy and drawing on it later for reproduction (i.e. capital breeding). Other species spawn using energy acquired locally, throughout a pro ...
DOI:
10.1111/faf.12043

99. Estimating egg mass–body mass relationships in birds

Author:
John T. Rotenberry; Priya Balasubramaniam
Source:
Auk 2020 v.137 no.3 pp. 1-11
ISSN:
1938-4254
Subject:
adults; allometry; birds; body weight; egg masses; eggs; females; life history; mortality; nests; predation; sample size; sexual dimorphism
Abstract:
... The mass of a bird's egg is a critical attribute of the species' life history and represents a fundamental component of reproductive effort. Indeed, the tradeoff between the number of eggs in a clutch and clutch mass lies at the heart of understanding how environmental attributes such as nest predation or adult mortality influence reproductive investment. However, egg masses have not been reported ...
DOI:
10.1093/auk/ukaa019

100. Estimation of life history parameters for river catfish Eutropiichthys vacha: insights from multi-models for sustainable management

Author:
Dalia Khatun; Md. Yeamin Hossain; Obaidur Rahman; Md. Firose Hossain
Source:
Heliyon 2022 v.8 no.10 pp. e10781
ISSN:
2405-8440
Subject:
Eutropiichthys vacha; allometry; body weight; catfish; females; habitats; life history; males; mortality; protein sources; riparian areas; rivers; sex ratio; Bangladesh; Ganges River
Abstract:
... The river catfish, Eutropiichthys vacha is a vital protein source for rural communities and has high commercial value, but understanding its life history and management strategies reveals major inadequacies and ambiguities in the riverine ecosystems. Consequently, this study employs multi-models to analyze the life history parameters of E. vacha in the Ganges River (northwestern Bangladesh) from J ...
DOI:
10.1016/j.heliyon.2022.e10781