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1. (Meta)population dynamics determine effective spatial distributions of mosquito‐borne disease control

Author:
Samantha R. Schwab; Chris M. Stone; Dina M. Fonseca; Nina H. Fefferman
Source:
Ecological applications 2019 v.29 no.3 pp. e01856
ISSN:
1051-0761
Subject:
Culicidae; birth rate; demography; dengue; disease control; disease outbreaks; human diseases; insect vectors; landscapes; larvae; mosquito control; population dynamics; risk
Abstract:
... Recent epidemics of mosquito‐borne dengue and Zika viruses demonstrate the urgent need for effective measures to control these diseases. The best method currently available to prevent or reduce the size of outbreaks is to reduce the abundance of their mosquito vectors, but there is little consensus on which mechanisms of control are most effective, or when and where they should be implemented. Alt ...
DOI:
10.1002/eap.1856

2. Abundance estimates of an isolated population of common bottlenose dolphins Tursiops truncatus in Walvis Bay, Namibia, 2008–2012

Author:
SH Elwen; RH Leeney; T Gridley
Source:
African journal of marine science 2019 v.41 no.1 pp. 61-70
ISSN:
1814-2338
Subject:
Tursiops truncatus; aquaculture; birth rate; immigration; models; mussels; oysters; population size; summer; surveys; tourism; winter; Namibia
Abstract:
... The coastal population of common bottlenose dolphins Tursiops truncatus found in Namibia is regionally isolated and unique. This population faces several potential anthropogenic threats, especially in Walvis Bay, including boat-based tourism, a commercial harbour undergoing expansion, and aquaculture for oysters and mussels. Between 2008 and 2012, 238 boat-based surveys were conducted, resulting i ...
DOI:
10.2989/1814232X.2019.1572538

3. Advantages of the two-step embryo transfer strategy in human IVF/ICSI cycles

Author:
Chadi Yazbeck; Nadia Ben Jamaa; André Hazout; Paul Cohen-Bacrie; Anne-Marie Junca; Nathalie Rougier
Source:
Zygote 2013 v.21 no.1 pp. 77-83
ISSN:
1469-8730
Subject:
birth rate; blastocyst; cryopreservation; embryo transfer; humans; in vitro culture; in vitro fertilization; pregnancy rate; women
Abstract:
... The aim of this study was to evaluate the advantages of the two-step embryo transfer (ET) strategy combining a day 2/3 ET with a day 5/6 blastocyst transfer. In an observational comparative study, 400 infertile women were enrolled from two assisted reproductive technology (ART) units according to inclusion criteria: age below 42 years and at least three embryos obtained on day 2 thus allowing an e ...
DOI:
10.1017/S096719941100058X
PubMed:
22008412

4. Age of population and the development of population ageing in the regions of the Czech Republic

Author:
J. Dufek; B. Minařík
Source:
Zemědělská ekonomika v.55 no.6 pp. 259-270
ISSN:
0139-570X
Subject:
birth rate; cluster analysis; databases; factor analysis; longevity; people; Czech Republic
Abstract:
... The process of ageing of the population is one of the negative demographic phenomena of the developed countries’ population. The basic reasons are the decrease of the birth-rate and a longer lifespan of people. These trends can also be seen in the Czech Republic on the state as well as the regional levels. Our contribution wants to analyze the differences in the age of population and the rapidity ...
DOI:
10.17221/35/2009-agricecon

5. Age‐structured modeling reveals long‐term declines in the natality of western steller sea lions

Author:
E. E. Holmes; L. W. Fritz; A. E. York; K. Sweeney
Source:
Ecological applications 2007 v.17 no.8 pp. 2214-2232
ISSN:
1051-0761
Subject:
temporal variation; estimation; endangered species; Eumetopias; marine mammals; animal reproduction; models; animal age; predators; aerial photography; mortality; birth rate; population structure; pups; population dynamics; adults; prediction; Alaska
Abstract:
... Since the mid‐1970s, the western Steller sea lion (Eumetopias jubatus), inhabiting Alaskan waters from Prince William Sound west through the Aleutian Islands, has declined by over 80%. Changing oceanographic conditions, competition from fishing operations, direct human‐related mortality, and predators have been suggested as factors driving the decline, but the indirect and interactive nature of th ...
DOI:
10.1890/07-0508.1
PubMed:
18213964

6. Air pollution, inflammation and preterm birth in Mexico City: Study design and methods

Author:
Marie S. O´Neill; Alvaro Osornio-Vargas; Miatta A. Buxton; Brisa N. Sánchez; Leonora Rojas-Bracho; Marisol Castillo-Castrejon; Irina B. Mordhukovich; Daniel G. Brown; Felipe Vadillo-Ortega
Source:
Science of the total environment 2013 v.448 pp. 79-83
ISSN:
0048-9697
Subject:
prospective studies; pregnant women; birth rate; blood; data collection; premature birth; toxicology; cities; genetic polymorphism; air quality; temporal variation; risk factors; pregnancy; spatial data; risk reduction; mortality; infants; inflammation; gestation period; air pollution; Mexico
Abstract:
... Preterm birth is one of the leading causes of perinatal mortality and is associated with long-term adverse health consequences for surviving infants. Preterm birth rates are rising worldwide, and no effective means for prevention currently exists. Air pollution exposure may be a significant cause of prematurity, but many published studies lack the individual, clinical data needed to elucidate poss ...
DOI:
10.1016/j.scitotenv.2012.10.079
PubMed:
23177781
PubMed Central:
PMC3594336

7. Ambient temperature and the risk of preterm birth: A national birth cohort study in the mainland China

Author:
Yuan-Yuan Wang; Qin Li; Yuming Guo; Hong Zhou; Qiao-Mei Wang; Hai-Ping Shen; Yi-Ping Zhang; Dong-Hai Yan; Shanshan Li; Gongbo Chen; Shuang Zhou; Yuan He; Ying Yang; Zuo-Qi Peng; Hai-Jun Wang; Xu Ma
Source:
Environment international 2020 v.142 pp. 105851
ISSN:
0160-4120
Subject:
air pollution; ambient temperature; birth rate; cohort studies; models; pregnancy; premature birth; risk; China
Abstract:
... Little is known about the effect of ambient temperature on preterm birth, especially for the trimester-specific effects.To evaluate whether exposure to relatively low or high temperature during pregnancy is associated with increasing risk of preterm birth or not.We analysed the data of a birth cohort with 1,281,859 singleton pregnancies during 2013–2014 and matched the home address of each pregnan ...
DOI:
10.1016/j.envint.2020.105851

8. Analysis of Socio-Economic Factors That Influence Loss of Life in Sediment-Related Disasters

Author:
Miki Chiba; Hiromichi Furuido; Shigemitsu Shibasaki; Kazuki Haga
Source:
Water 2022 v.14 no.15 pp. -
ISSN:
2073-4441
Subject:
Japan; analytical methods; birth rate; land use; mountains; water
Abstract:
... Non-structural measures, including relocation from a hazard zone, land development regulations, and evacuation, are important sediment-related countermeasures. Such measures depend on the behaviour of residents and are affected by socio-economic conditions. In Japan, the declining birth rate and ageing population are expected to result in rapid changes in socio-economic conditions; accordingly, th ...
DOI:
10.3390/w14152408

9. Analysis of the basic characteristics of demographic development in an urban, suburban and provincial district in the Czech

Author:
J. Dufek; M. Ospala
Source:
Zemědělská ekonomika v.48 no.12 pp. 533-543
ISSN:
0139-570X
Subject:
birth rate; databases; longevity; marriage; mortality; reproduction
Abstract:
... This paper analyses and compares the basic demographic characteristics of the selected districts of the Jihomoravský region, namely the urban Brno-město district, the suburban Brno-venkov district and the provincial Břeclav district, in the period between 1990–2000. The methodology section describes the indicators we have used, the basic data were taken from the database of the Czech ...
DOI:
10.17221/5365-agricecon

10. Analyzing the past to understand the future: Natural mating yields better reproductive rates than artificial insemination in the giant panda

Author:
Disheng Li; Nathan J.P. Wintle; Guiquan Zhang; Chengdong Wang; Bo Luo; Meghan S. Martin-Wintle; Megan A. Owen; Ronald R. Swaisgood
Source:
Biological conservation 2017 v.216 pp. 10-17
ISSN:
0006-3207
Subject:
Ailuropoda melanoleuca; adaptive management; artificial insemination; birth rate; breeding programs; endangered species; insemination; natural mating; natural resources conservation; retrospective studies; uncertainty
Abstract:
... Conservation breeding programs require active management and thus selection among various management alternatives is a common practice. As in the practice of adaptive management used in ecology, it is important to reduce uncertainty about the outcomes of various management actions. Ideally this evaluation will be done using a priori hypothesis testing, but retrospective analyses can provide import ...
DOI:
10.1016/j.biocon.2017.09.025

11. Ancestral and more recently acquired syntenic relationships of MADS-box genes uncovered by the Physcomitrella patens pseudochromosomal genome assembly

Author:
Elizabeth I. Barker; Neil W. Ashton
Source:
Plant cell reports 2016 v.35 no.3 pp. 505-512
ISSN:
0721-7714
Subject:
Physcomitrella patens; birth rate; chromosome aberrations; evolution; genes; genome assembly; karyotyping; models; prediction; transposition (genetics)
Abstract:
... KEY MESSAGE : The Physcomitrella pseudochromosomal genome assembly revealed previously invisible synteny enabling realisation of the full potential of shared synteny as a tool for probing evolution of this plant’s MADS-box gene family. Assembly of the sequenced genome of Physcomitrella patens into 27 mega-scaffolds (pseudochromosomes) has confirmed the major predictions of our earlier model of exp ...
DOI:
10.1007/s00299-015-1898-2

12. Annual variation in biomass and the community structure of crustacean zooplankton over 5 years in Lake Toya, Japan

Author:
Syuhei Ban; Wataru Makino; Hiroyuki Sakano; Hiroyuki Haruna; Hiroshi Ueda
Source:
Limnology 2013 v.14 no.1 pp. 59-70
ISSN:
1439-8621
Subject:
Daphnia; biomass; birth rate; chlorophyll; community structure; euphotic zone; fish; lakes; mortality; population dynamics; zooplankton; Japan
Abstract:
... The biomass and population dynamics of crustacean zooplankton were determined in oligotrophic Lake Toya in Japan over 5 years from May 1992 to May 1997. In 1992 and 1993, zooplankton biomass was up to 4.3 g dry weight m⁻², whereas it decreased to <1 g dry weight m⁻² after 1994. This extreme change in biomass was associated with the succession of dominant species from larger ones, such as Daphnia l ...
DOI:
10.1007/s10201-012-0387-3

13. Aspects of goat farming in the communal farming systems of the central Eastern Cape, South Africa

Author:
Masika, P.J.; Mafu, J.V.
Source:
Small ruminant research 2004 v.52 no.1-2 pp. 161-164
ISSN:
0921-4488
Subject:
birth rate; breeding; bucks; farmers; farming systems; flocks; goat milk; goats; interviews; milk yield; mortality; production technology; questionnaires; rural areas; slaughter; surveys; tick-borne diseases; twins; villages; South Africa
Abstract:
... A survey of small-scale goat farmers was conducted in two villages of the Nkonkobe region, in the central Eastern Cape. The aim of the study was to assess and document the prevailing goat production systems in the rural areas. Information obtained was mainly on flock sizes, reasons for keeping, breeding and management practices. A structured questionnaire, based on interviews of 52 respondents rev ...
DOI:
10.1016/S0921-4488(03)00256-6

14. Assess transmissibility of different influenza subtypes: Based on a SEIABR model

Author:
Haoyun Dai; Nan Zhou; Mengxiang Chen; Guoqun Li; Xing Yu; Yi Su; Shanghui Yi; Xiuqin Hong; Meifang Quan; Wenting Zha; Yuan Lv
Source:
Infection, genetics, and evolution 2022 v.103 pp. 105319
ISSN:
1567-1348
Subject:
birth rate; dynamic models; evolution; genetics; infection; influenza; mortality; public health; China
Abstract:
... Influenza is a worldwide public health problem which causes a serious economic and health burden. In order to provide a scientific basis for improving the prevention and control level of influenza, using dynamic model to evaluate the infection rates of influenza different subtypes from 2010 to 2019 in China. This article established SEIABR model based on influenza cases reported by China National ...
DOI:
10.1016/j.meegid.2022.105319

15. Assessing the financial efficiency of healthcare services and its influencing factors of financial development: fresh evidences from three-stage DEA model based on Chinese provincial level data

Author:
Hongda Liu; Wangqiang Wu; Pinbo Yao
Source:
Environmental science and pollution research 2022 v.29 no.15 pp. 21955-21967
ISSN:
0944-1344
Subject:
birth rate; capital; education; health services; models; pediatrics; pollution; public health; regression analysis; research; urbanization; China
Abstract:
... Pediatrics is an integral part of public health services. With the impact of the epidemic and the high-quality transformation of China’s development, the contradiction in the supply of pediatric public services has become more prominent. Scientific evaluation of the efficiency and quality of pediatric services, clarifying the redundancy of pediatric input resources and adjusting the construction o ...
DOI:
10.1007/s11356-021-17005-4

16. The Association between Vaginal Dysbiosis and Reproductive Outcomes in Sub-Fertile Women Undergoing IVF-Treatment: A Systematic PRISMA Review and Meta-Analysis

Author:
Axel Skafte-Holm; Peter Humaidan; Andrea Bernabeu; Belen Lledo; Jørgen Skov Jensen; Thor Haahr
Source:
Pathogens 2021 v.10 no.3 pp. -
ISSN:
2076-0817
Subject:
adverse effects; birth rate; dysbiosis; meta-analysis; microorganisms; microscopy; pregnancy rate; relative risk; risk factors; systematic review
Abstract:
... Recent advances in molecular microbiology have enabled refined studies of the genital tract microbiota. This constitutes the basis of the present updated systematic review and meta-analysis which investigate vaginal dysbiosis (VD) as defined by either microscopy (e.g., Nugent score for bacterial vaginosis) or molecular methods (qPCR and Next Generation Sequencing) to evaluate the impact of VD on t ...
DOI:
10.3390/pathogens10030295

17. Association between ambient air pollution and pregnancy outcomes in patients undergoing in vitro fertilization in Shanghai, China: A retrospective cohort study

Author:
Wenming Shi; Chunyan Sun; Qiaoyu Chen; Mingming Ye; Jianing Niu; Zhenzhen Meng; Orhan Bukulmez; Miaoxin Chen; Xiaoming Teng
Source:
Environment international 2021 v.148 pp. 106377
ISSN:
0160-4120
Subject:
air; air pollution; birth rate; blood serum; cohort studies; embryo transfer; environment; freeze-thaw cycles; hospitals; issues and policy; oocytes; pregnancy rate; regression analysis; risk; China
Abstract:
... The effects of ambient air pollutants on adverse pregnancy outcomes have been reported. However, studies about air pollutants exposure and pregnancy outcomes in patients undergoing IVF were limited and inconclusive. To date Shanghai has been the only city in China to implement a compulsory single embryo transfer policy for all patients undergoing their first embryo transfer procedure effective fro ...
DOI:
10.1016/j.envint.2021.106377

18. Association between maternal prepregnancy body mass index and pregnancy outcomes following assisted reproductive technology: A systematic review and dose–response meta‐analysis

Author:
Yiquan Xiong; Jing Wang; Shiyao Huang; Chunrong Liu; Yanmei Liu; Yana Qi; Ling Li; Wen Wang; Kang Zou; Jing Tan; Xin Sun
Source:
Obesity reviews 2021 v.22 no.6 pp. e13219
ISSN:
1467-7881
Subject:
abortion (animals); assisted reproductive technologies; birth rate; body mass index; dose response; meta-analysis; obesity; pregnancy rate; relative risk; systematic review
Abstract:
... This systematic review investigated dose–response relationship between maternal prepregnancy body mass index (BMI) and pregnancy outcomes following assisted reproductive technology, including clinical pregnancy rate (CPR), miscarriage rate (MR), and live birth rate (LBR). We searched four major databases and finally included 105 studies involving more than 271,632 pregnant women. We performed line ...
DOI:
10.1111/obr.13219

19. Associations between internal concentrations of fluorinated and organochlorinated chemicals in women and in vitro fertilization outcomes: A multi-pollutant study

Author:
Tiphaine Lefebvre; Thomas Fréour; Gauthier Duval; Stéphane Ploteau; Philippe Marchand; Bruno Le Bizec; Jean-Philippe Antignac; German Cano-Sancho
Source:
Environmental pollution 2022 v.313 pp. 120087
ISSN:
0269-7491
Subject:
Bayesian theory; anti-Mullerian hormone; birth rate; blastocyst; blood serum; body mass index; follicular fluid; gas chromatography; hospitals; liquid chromatography; pollution; polychlorinated biphenyls; pregnancy rate; tandem mass spectrometry; France
Abstract:
... The impact of persistent organic pollutants (POPs) on reproductive health is still poorly understood, even though infertility management has high associated societal and economical costs. The aims of this study were to characterize the internal levels of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and perfluoroalkylated substances (PFAS) in women undergoing in vitro fertiliz ...
DOI:
10.1016/j.envpol.2022.120087

20. Associations of Provider‐to‐Population Ratios and Population Health by County‐Level Rurality

Author:
Bronwyn E. Fields; Jeri L. Bigbee; Janice F. Bell
Source:
Journal of rural health 2016 v.32 no.3 pp. 235-244
ISSN:
0890-765X
Subject:
birth rate; death; dentists; mortality; nurses; physicians; regression analysis; rural areas; rural health; screening; United States
Abstract:
... PURPOSE: To explore the relationship between provider‐to‐population ratios, rurality and population health in the United States using counties as the unit of analysis. METHOD: Population ratios for registered nurses (RNs), primary care physicians, and dentists were included in multivariable regression analyses. Population health indices assessed were premature death rate, self‐rated health, teen b ...
DOI:
10.1111/jrh.12143

21. Basins of attraction of the classic model of competition between two populations

Author:
A.C. Fassoni; L.T. Takahashi; L.J. dos Santos
Source:
Ecological complexity 2014 v.18 pp. 39-48
ISSN:
1476-945X
Subject:
basins; birth rate; energy; interspecific competition; mathematics and statistics; models; reproduction
Abstract:
... In this paper we revisit the classic Lotka–Volterra model of competition between two populations and present some new results on the regime of bistability presented by this model. Initially, we review the results on the global stability analysis of the system and present a new global energy function. Then, we extend the model analysis in the case of strong competition, when the system has two asym ...
DOI:
10.1016/j.ecocom.2013.12.004

22. Bayesian inference of genetic parameters for reproductive and performance traits in White Leghorn hens

Author:
J.O. Rosa; G.C. Venturini; T.C.S. Chud; B.C. Pires; M.E. Buzanskas; N.B. Stafuzza; G.R. Furquim; V.A.R. Cruz; G.S. Schmidt; E.A.P. Figueiredo; V.F.M.H. Lima; M.C. Ledur; D.P. Munari
Source:
Czech Journal of Animal Science v.63 no.6 pp. 230-236
ISSN:
1212-1819
Subject:
Bayesian theory; White Leghorn; animal models; birth rate; body weight; egg production; egg quality; eggs; genetic correlation; genetic improvement; genetic variation; heritability; sexual maturity
Abstract:
... This study estimated the genetic parameters for reproductive and performance traits and determined which ones can be used as selection criteria for egg production in laying hens using the Bayesian inference. The data of 1894 animals from three generations of White Leghorn laying hens were analyzed for fertility (FERT), hatchability (HATC), and birth rate measurements at 60 weeks of age (BIRTH), bo ...
DOI:
10.17221/116/2017-cjas

23. Biological cost of tolerance to heavy metals in the mosquito Anopheles gambiae

Author:
MIREJI, P.O.; KEATING, J.; HASSANALI, A.; MBOGO, C.M.; MUTURI, M.N.; GITHURE, J.I.; BEIER, J.C.
Source:
Medical and veterinary entomology 2010 v.24 no.2 pp. 101-107
ISSN:
0269-283X
Subject:
pupae; heavy metals; lead; insect vectors; malaria; birth rate; metal tolerance; ova; fecundity; cadmium; insect ecology; imagos; vectorial capacity; chronic exposure; water pollution; lethal dose 50; copper; pollutants; Anopheles gambiae; progeny; larvae; mortality; adverse effects; life tables; hematophagous insects; habitats
Abstract:
... The global rate of heavy metal pollution is rapidly increasing in various habitats. Anopheles malaria vector species (Diptera: Culicidae) appear to tolerate many aquatic habitats with metal pollutants, despite their normal proclivity for 'clean' water (i.e. low levels of organic matter). Investigations were conducted to establish whether there are biological costs for tolerance to heavy metals in ...
DOI:
10.1111/j.1365-2915.2010.00863.x
PubMed:
20374478
PubMed Central:
PMC2921613

24. Biological effects of FoxJ2 over-expression

Author:
Martín-de-Lara, F.; Sánchez-Aparicio, P.; Arias de la Fuente, Carmen; Rey-Campos, J.
Source:
Transgenic research 2008 v.17 no.6 pp. 1131-1141
ISSN:
0962-8819
Subject:
adulthood; birth rate; embryogenesis; gene overexpression; genes; heart; in vitro culture; mice; mutants; phenotype; testes; transcription factors; transgenic animals
Abstract:
... As reported previously, we have extensively studied FoxJ2, a member of the Fork Head transcription factors family. While the biochemical and functional structures of this transcription factor are well understood, its biological function remains unknown. Here, we present data that address this point using transgenic mouse technology. We found that the birth rate and the number of transgenic animals ...
DOI:
10.1007/s11248-008-9214-3

25. Birth and death rate estimates of cats and dogs in U.S. households and related factors

Author:
New, J.C. Jr.; Kelch, W.J.; Hutchison, J.M.; Salman, M.D.; King, M.; Scarlett, J.M.; Kass, P.H.
Source:
Journal of applied animal welfare science 2004 v.7 no.4 pp. 229-241
ISSN:
1088-8705
Subject:
pets; birth rate; mortality; animal reproduction; ovariectomy; United States
DOI:
10.1207/s15327604jaws0704_1
PubMed:
15857809

26. Birth outcomes to rural Illinois residents: is there a crisis?

Author:
Rock, S.M.; Straub, L.A.
Source:
Journal of rural health 1994 v.10 no.2 pp. 122-130
ISSN:
0890-765X
Subject:
health services; rural areas; supply; infants; parturition; birth rate; Illinois
Abstract:
... In recent years, the supply of obstetric services in rural areas has been a concern. At the same time, the demand for such services has been affected by the reduction in population and economic base. This article explores the extent of these trends in Illinois and whether they have led to a deterioration in amount of prenatal care and birth outcomes. Using birth certificate and infant death data f ...
DOI:
10.1111/j.1748-0361.1994.tb00219.x
PubMed:
10134713

27. Birth rate and offspring survival in a free‐ranging wild boar Sus scrofa population

Author:
András Náhlik; Gyula Sándor
Source:
Wildlife biology 2003 v.9 Suppl s1 pp. 37-42
ISSN:
0909-6396
Subject:
Sus scrofa; birth rate; body length; conception rate; corpus luteum; females; mortality; piglets; pregnancy; progeny; summer; uterus; wild boars
Abstract:
... We estimated birth rates in wild boar Sus scrofa by counting embryos in the uterus of females killed in individual or drive hunts. Counting corpora lutea in the ovaries gave information on embryo:corpus luteum rate, which can be useful for estimating birth rates in early stages of pregnancy. Birth rates were estimated separately for the different age groups. Age was estimated by means of teeth wea ...
DOI:
10.2981/wlb.2003.062

28. Breed differences in maternal behaviour in relation to lamb (Ovis orientalis aries) productivity

Author:
U. König von Borstel; E. Moors; C. Schichowski; M. Gauly
Source:
Livestock science 2011 v.137 no.1-3 pp. 42-48
ISSN:
1871-1413
Subject:
Merino; animal welfare; birth rate; breed differences; ewes; farming systems; genotype; lambs; maternal behavior; mortality; mouflon; parturition; progeny; vocalization
Abstract:
... The fundamental precondition to the survival and development of lambs is the formation of a close and exclusive bond between the ewe and her lambs. Maternal behaviour plays an important role in the establishment of this bond, and it is influenced by several factors including genotype. The aim of the present study was to detect differences in maternal behaviour in ewes (n=602) of five different bre ...
DOI:
10.1016/j.livsci.2010.09.028

29. Calculating economic weights for sheep sire breeds used in different breeding systems

Author:
Wolfová, M.; Wolf, J.; Milerski, M.
Source:
Journal of animal science 2011 v.89 no.6 pp. 1698-1711
ISSN:
0021-8812
Subject:
Romanov; Romney; birth rate; computer software; crossing; dual-purpose breeds; lambing; litter size; production technology; rams; selection index; sires; sons; survival rate; weaning; Czech Republic
Abstract:
... The objective of this paper was to adapt gene-flow methodology for the calculation of economic weights (EW) for direct and maternal traits and trait components in sheep and to apply this methodology to the Suffolk breed in the Czech Republic. Computer programs were developed in which annual-lambing sheep production systems with purebreeding or partial terminal crossing were simulated. Using these ...
DOI:
10.2527/jas.2010-3237
PubMed:
21278120

30. Can we use disease to control biological invasion?—A theoretical research

Author:
Yinghui Yang; Weide Li; Gang Wang
Source:
Ecological modelling 2014 v.277 pp. 97-107
ISSN:
0304-3800
Subject:
biological control; birth rate; colonizing ability; disease control; ecological invasion; indigenous species; invasive species; models; pathogens; virulence
Abstract:
... Many investigations reveal that diseases and pathogens have a certain role in promoting the control of biological invasion. They are mostly based on mean-field assumption. Only few of them have considered the local spatial effect that is more close to the reality. In this research, we developed a local pair-dynamic model based on the SI (susceptible infected) framework among competitive interactio ...
DOI:
10.1016/j.ecolmodel.2014.01.023

31. Chemosensory receptors in tsetse flies provide link between chemical and behavioural ecology

Author:
Daniel Masiga; George Obiero; Rosaline Macharia; Paul Mireji; Alan Christoffels
Source:
Trends in parasitology 2014 v.30 no.9 pp. 426-428
ISSN:
1471-4922
Subject:
Glossina morsitans morsitans; birth rate; genomics; insects; larviposition; odor compounds; olfactory receptors; predators; progeny; receptors; taste; Africa
Abstract:
... Tsetse flies survive in a variety of environments across tropical Africa, often rising to large numbers, despite their low birth rate of one offspring every seven to nine days. They use olfactory receptors to process chemical signals in their environments to find food, escape from predators, and locate suitable larviposition sites. We discuss the identification of odorant and gustatory receptors i ...
DOI:
10.1016/j.pt.2014.06.007
PubMed:
25017128
PubMed Central:
PMC4679831

32. Cigarette smoke is associated with altered expression of antioxidant enzymes in granulosa cells from women undergoing in vitro fertilization

Author:
Maria Cristina Budani; Erminia Carletti; Gian Mario Tiboni
Source:
Zygote 2017 v.25 no.3 pp. 296-303
ISSN:
1469-8730
Subject:
antioxidant enzymes; birth rate; catalase; cigarettes; gene overexpression; granulosa cells; in vitro fertilization; messenger RNA; metaphase; oocytes; oxidative stress; pregnancy rate; smoke; smoking (habit); women; zygote
Abstract:
... This study was undertaken to evaluate whether cigarette smoke is associated with changes in the expression of antioxidant enzymes in granulosa cells of women undergoing IVF treatments. For this aim, the expression of three antioxidant enzymes (SOD1, SOD2 and catalase) in non-smokers (n = 20) and smokers (n = 20) was analyzed. There was a statistically significant overexpression of SOD2 and catalas ...
DOI:
10.1017/S0967199417000132
PubMed:
28635583

33. Clonal structure and depth selection during a Caullerya mesnili epidemic in a hybridizing population of the Daphnia longispina complex

Author:
Nadine Tardent; Christoph Tellenbach; Patrick Turko; Piet Spaak
Source:
Hydrobiologia 2017 v.798 no.1 pp. 33-44
ISSN:
0018-8158
Subject:
Daphnia longispina; birth rate; disease outbreaks; environmental factors; genotype; hosts; lakes; migratory behavior; opacity; pH; parasites; predator avoidance; predators; spatial distribution; summer; temperature; Switzerland
Abstract:
... Daphnia perform diel vertical migration (DVM), a predator-avoidance strategy to migrate towards deeper and colder layers in the water column in the morning and movement to the algae-rich surface layers in the evening. However, individuals performing DVM incur several trade-offs since they might suffer from resource limitation and a slower instantaneous birth rate in deeper depths. DVM patterns may ...
DOI:
10.1007/s10750-015-2632-3

34. Cloning of Buffalo, a Highly Valued Livestock Species of South and Southeast Asia: Any Achievements?

Author:
Naresh L. Selokar; Monika Saini; Prabhat Palta; Manmohan S. Chauhan; Radhey S. Manik; Suresh K. Singla
Source:
Cellular reprogramming 2018 v.20 no.2 pp. 89-98
ISSN:
2152-4998
Subject:
Bubalus bubalis; birth rate; blastocyst; buffaloes; calves; cloning (animals); developing countries; freeze-thaw cycles; germplasm; semen; somatic cells; South East Asia
Abstract:
... Buffalo (Bubalus bubalis) is a major source of milk, meat, and draught power in many developing countries in Asia. Animal cloning holds a lot of potential for fast multiplication of elite buffaloes and conservation of their valuable germplasm. Although the progress of buffalo cloning has been slow in comparison to cattle or pig, several breakthroughs were reported in buffalo cloning such as the pr ...
DOI:
10.1089/cell.2017.0051

35. Combining demographic and count‐based approaches to identify source–sink dynamics of a threatened seabird

Author:
M. Zachariah Peery; Benjamin H. Becker; Steven R. Beissinger
Source:
Ecological applications 2006 v.16 no.4 pp. 1516-1528
ISSN:
1051-0761
Subject:
Brachyramphus marmoratus; adults; birth rate; death; immigration; juveniles; models; population growth; reproduction; seabirds; surveys; California
Abstract:
... Identifying source–sink dynamics is of fundamental importance for conservation but is often limited by an inability to determine how immigration and emigration influence population processes. We demonstrate two ways to assess the role of immigration on population processes without directly observing individuals dispersing from one population to another and apply these methods to a population of Ma ...
DOI:
10.1890/1051-0761(2006)016[1516:CDACAT]2.0.CO;2

36. Comparative Ecology of Blue Monkeys (Cercopithecus Mitis) in High‐ and Low‐Density Subpopulations

Author:
Thomas M. Butynski
Source:
Ecological monographs 1990 v.60 no.1 pp. 1-26
ISSN:
0012-9615
Subject:
Cercopithecus mitis; adults; birth rate; carrying capacity; comparative study; demographic statistics; diet; females; food production; foods; foraging; forests; fruits; habitats; home range; hybridization; interspecific competition; males; monkeys; population density; population growth; reproductive success; species richness; trees; Uganda
Abstract:
... Two subpopulations of blue monkeys (Cercopithecus mitis), located 10 km apart, were studied in Kibale Forest, Uganda, for most of a 6—yr period (1978—1984). This study was undertaken (1) to assess and evaluate the major differences in the environment and in the behavioral ecology of blue monkeys living at high and low densities and (2) to explain the differences in blue monkey densities in the two ...
DOI:
10.2307/1943024

37. Comparison of BALB/c and B6-albino mouse strain blastocysts as hosts for the injection of C57BL6/N-derived C2 embryonic stem cells

Author:
Tuija M. Alcantar; Rhonda Wiler; Xin Y. Rairdan
Source:
Transgenic research 2016 v.25 no.4 pp. 527-531
ISSN:
0962-8819
Subject:
animal models; birth rate; blastocyst; chimerism; clones; embryonic stem cells; genetic engineering; germ cells; hosts; males; mice; transgenic animals
Abstract:
... Embryonic stem (ES) cells from a C57BL/6N (B6N) background injected into B6(Cg)-Tyrc-2J/J (B6-albino) recipient blastocysts are commonly used for generating genetically modified mouse models. To understand the influence of the recipient blastocyst strain on germline transmission, BALB/cAnNTac and B6-albino germline transmission rates were compared using the C57BL6/N-derived C2 ES cell line. A tota ...
DOI:
10.1007/s11248-016-9937-5

38. Comparison of Grizzly Bear Ursus arctos Demographics in Wilderness Mountains Versus a Plateau with Resource Development

Author:
Lana M. Ciarniello; Mark S. Boyce; Dale R. Seip; Douglas C. Heard
Source:
Wildlife biology 2009 v.15 no.3 pp. 247-265
ISSN:
0909-6396
Subject:
Ursus arctos; adults; birth rate; death; demographic statistics; females; forestry; forests; landscapes; mountains; people; plateaus; roads; survival rate; towns; wilderness
Abstract:
... We studied migration, birth rate and death rate of 59 grizzly bears Ursus arctos on a plateau (N = 29) with extensive forestry activities, and adjacent relatively undeveloped mountains (N = 30) during 1998–2003, to examine population parameters and/or limiting factors that might have contributed to a large difference in grizzly bear density between landscapes. Female bears in our low‐density area ...
DOI:
10.2981/08-080

39. Comparison of IVF and IVM outcomes in the same patient treated with a modified IVM protocol along with an oocytes-maturing system containing melatonin: A pilot study

Author:
Xinyuan Li; Yaoqin Mu; Nagwa Elshewy; Ding Ding; Huijuan Zou; Beili Chen; Change Chen; Zhaolian Wei; Yunxia Cao; Ping Zhou; Zhiguo Zhang
Source:
Life sciences 2021 v.264 pp. 118706
ISSN:
0024-3205
Subject:
birth rate; blastocyst; calcium; confocal microscopy; fluorescence; medical facilities; melatonin; membrane potential; mitochondria; mitochondrial membrane; oocytes; patients; reactive oxygen species
Abstract:
... To compare embryonic developmental competence and clinical outcomes of oocytes matured in vivo (IVF oocytes) and those matured in vitro (IVM oocytes) from the same IVM/IVF cycles, and to analyze the clinical efficiency of a melatonin-supplemented in vitro maturation system combined with a modified IVM/IVF protocol.We randomly recruited 22 patients undergoing IVM/IVF treatment protocol in our medic ...
DOI:
10.1016/j.lfs.2020.118706

40. Comparison of pregnancy outcomes following the transfer of early-developmental stage embryos and blastocysts produced by somatic cell nuclear transfer in Camelus dromedarius

Author:
Young-Bum Son; Yeon Ik Jeong; Yeon Woo Jeong; Xianfeng Yu; P. Olof Olsson; Lian Cai; Eun Ji Choi; Mohammad Shamim Hossein; Alex tinson; Kuhad Kuldip Singh; Singh Rajesh; Al Shamsi Noura; Woo Suk Hwang
Source:
Animal reproduction science 2021 v.233 pp. 106842
ISSN:
0378-4320
Subject:
Camelus dromedarius; birth rate; blastocyst; blood serum; camels; embryo transfer; fibroblasts; metaphase; microsatellite repeats; oocytes; parentage; progeny; progesterone; somatic cells; ultrasonography
Abstract:
... The embryonic stage, site of embryo transfer in the reproductive tract of the surrogate, and embryo transfer method are important for the successful production of offspring. In the present study, there was comparison of pregnancy rates in camels following the surgical transfer of early-developmental stage embryos at Day 2 and transvaginal transfer of blastocysts at Day 7. Embryos were produced by ...
DOI:
10.1016/j.anireprosci.2021.106842

41. Complex dynamics of the population with a simple age structure

Author:
E.Y. Frisman; G.P. Neverova; O.L. Revutskaya
Source:
Ecological modelling 2011 v.222 no.12 pp. 1943-1950
ISSN:
0304-3800
Subject:
age structure; birth rate; mathematical models; population growth; population size; survival rate
Abstract:
... The effects of the following modes of density-dependent control of population growth: density-dependent birth rate, adult survival rate, juvenile survival rate are compared based on the mathematical model of population dynamics. It is shown that the most efficient mechanisms limiting population size are decreasing with the growth of the adult population birth rate and/or the decreasing survival ra ...
DOI:
10.1016/j.ecolmodel.2011.03.043

42. Confronting two‐sex demographic models with data

Author:
Tom E. X. Miller; Brian D. Inouye
Source:
Ecology 2011 v.92 no.11 pp. 2141-2151
ISSN:
0012-9658
Subject:
Callosobruchus maculatus; birth rate; experimental design; females; guidelines; males; models; population density; population dynamics; progeny; sex ratio
Abstract:
... Most population dynamics models explicitly track the density of a single sex. When the operational sex ratio can vary, two‐sex models may be needed to understand and predict population trajectories. Various functions have been proposed to describe the relative contributions of females and males to recruitment, and these functions can differ qualitatively in the patterns that they generate. Which m ...
DOI:
10.1890/11-0028.1

43. Connectivity among wetlands matters for vulnerable amphibian populations in wetlandscapes

Author:
Patrizia Zamberletti; Marta Zaffaroni; Francesco Accatino; Irena F. Creed; Carlo De Michele
Source:
Ecological modelling 2018 v.384 pp. 119-127
ISSN:
0304-3800
Subject:
amphibians; birth rate; carrying capacity; energy; immigration; issues and policy; models; mortality; wetland management; wetlands
Abstract:
... Wetlands have been degraded and destroyed, resulting in the decline of many wetland-dependent species populations. Many conservation efforts are based on protection of individual wetlands; however, fluxes of energy, materials and organisms between wetlands create important structural and functional connections upon which several species depend. We investigated the role of individual wetlands withi ...
DOI:
10.1016/j.ecolmodel.2018.05.008

44. Context-dependence in an ant-aphid mutualism: direct effects of tending intensity on aphid performance

Author:
YOO, HO JUNG S.; HOLWAY, DAVID A.
Source:
Ecological entomology 2011 v.36 no.4 pp. 450-458
ISSN:
0307-6946
Subject:
survival rate; Linepithema humile; longevity; reproduction; carbohydrates; greenhouse experimentation; natural enemies; mutualism; honeydew; Aphidoidea; birth rate
Abstract:
... 1. In ant-hemipteran mutualisms, ants receive carbohydrates in the form of honeydew, while hemipterans receive protection from natural enemies. In the absence of natural enemies, however, the direct effects of tending are generally less well known. We hypothesised that with increasing tending intensity (ant to aphid ratio), aphid performance would increase initially, then decrease at high tending ...
DOI:
10.1111/j.1365-2311.2011.01288.x

45. Continuity of midwifery care for rural women through caseload group practice: Delivering for almost 20 years

Author:
Helen M. Haines; Janet Baker; Diana Marshall
Source:
Australian journal of rural health 2015 v.23 no.6 pp. 339-345
ISSN:
1038-5282
Subject:
birth rate; breast feeding; governance; infants; issues and policy; leadership; midwives; models; morbidity; mortality; rural health; rural population; rural women; working conditions
Abstract:
... OBJECTIVE: To describe the clinical outcomes and sustainability factors of a long‐standing midwifery led caseload model of rural maternity care. DESIGN: Retrospective clinical audit from 1998 to 2011 and autoethnographic narrative of the midwifery program told by the longest serving midwives under three key themes relating to sustainable practice. SETTING: Regional Health Service with annual birth ...
DOI:
10.1111/ajr.12232

46. Costs of reproduction—A demographical approach to examine life-history trade-offs in two old-world deer species

Author:
Benjamin Ibler; Klaus Fischer
Source:
Mammalian biology = 2016 v.81 no.5 pp. 455-463
ISSN:
1616-5047
Subject:
Cervus dama; Cervus nippon; Dama mesopotamica; birth rate; deer; females; life history; longevity; males; progeny; reproductive performance; survival rate; wet season; zoos
Abstract:
... Resource-allocation trade-offs comprise fundamental constraints on life-history evolution. In particular, the trade-offs between reproduction and longevity and between present and future reproduction are believed to be important in shaping reproductive patterns. Unfortunately, exploring such trade-offs in natural populations is complicated and may not be possible in all taxa. Against this backgrou ...
DOI:
10.1016/j.mambio.2016.06.001

47. Cryopreservation of porcine embryos: state of the art

Author:
Berthelot, Francoise; Martinat-Botté, Francoise; Vajta, Gabor; Terqui. Michel
Source:
Livestock production science 2003 v.83 no.1 pp. 73-83
ISSN:
0301-6226
Subject:
birth rate; blastocyst; cryopreservation; cryoprotectants; freezing; genotype; glycerol; ice; in vitro studies; livestock production; storage; survival rate; swine; temperature; vitrification
Abstract:
... Long term storage of porcine embryos would be worthwhile both for the preservation of genetic resources and for exportation of genotypes around the world. Three methods are available: freezing, classical vitrification and Open Pulled Straw vitrification (OPS). The efficiency of these methods were mainly evaluated in vitro by the development of morulae and blastocysts and in vivo by the birth rate ...
DOI:
10.1016/S0301-6226(03)00038-1

48. DNA repair gene polymorphisms at XRCC1, XRCC3, XPD, and OGG1 loci in Maharashtrian population of central India

Author:
Sreemanta Pramanik; Saravana Devi; Sanghamitra Chowdhary; Subin T. Surendran; Kannan Krishnamurthi; Tapan Chakrabarti
Source:
Chemosphere 2011 v.82 no.7 pp. 941-946
ISSN:
0045-6535
Subject:
epidemiological studies; alleles; loci; phenotype; at-risk population; ethnic differences; congenital abnormalities; risk assessment; gene frequency; DNA repair; multicultural diversity; birth rate; enzyme activity; single nucleotide polymorphism; India
Abstract:
... Reduction in DNA repair capacity is associated with increased rates of birth defects, cancer, and accelerated ageing. Genetic polymorphisms in DNA repair genes might influence the repair activities of the enzymes predisposing individuals to cancer risk. Owing to the presence of these genetic variants, inter-individual and ethnic differences in DNA repair capacity have been observed in various popu ...
DOI:
10.1016/j.chemosphere.2010.10.100
PubMed:
21183201

49. Daily ageing to delineate population dynamics of the invasive fish Gambusia holbrooki: implications for management and control

Author:
Hoang Nguyen; Justin D. Bell; Jawahar G. Patil
Source:
Biological invasions 2021 v.23 no.7 pp. 2261-2270
ISSN:
1387-3547
Subject:
Gambusia holbrooki; birth rate; invasive species; mortality; otoliths; pest control; population dynamics; reproduction; summer; water temperature; wetlands; wild fish
Abstract:
... Despite the high global invasion profile of Gambusia holbrooki, there is limited knowledge of its population dynamics, especially biological parameters for fine-scale delineation of recruitment events that can provide a basis for controlling this short-lived invasive species. Key to this is daily ageing of otoliths, and in this study 193 (~ 50%) of 394 wild fish sampled from an invaded wetland wer ...
DOI:
10.1007/s10530-021-02504-9

50. Decline and Current Status of the Grey Partridge (Perdix perdix L.) Population in Serbia - A Review

Author:
Zoran Ristić; Slobodan Puzović; Igor Ponjiger; Miroslav Urošević; Milutin Kovačević; Milosava Matejević; Vladimir Marković
Source:
Contemporary Agriculture 2018 v.67 no.2 pp. 171-176
ISSN:
2466-4774
Subject:
Perdix perdix; age structure; biocides; birth rate; breeding; crops; gender; habitats; intensive farming; monitoring; mortality; partridges; Czech Republic; England; Poland; Serbia
Abstract:
... Decrease of grey partridge population is a global process that has been catastrophic in recent decades. In England, the number of this species declined by 80% in the period from the beginning of the fifties to the mid-eighties of the last century (Potts, 1986). In the Czech Republic from 1965 to the end of the eighties by as much as 95% (Štasny et al. 1997), and the situation is similar in Poland ...
DOI:
10.2478/contagri-2018-0024