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You searched for: Subject egg production Remove constraint Subject: egg production Subject adults Remove constraint Subject: adults
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1. THE Effects of mating on egg production in the cotton stainer, dysdercus fasciatus

Author:
ODHIAMBO, THOMAS R.
Source:
Entomologia experimentalis et applicata 1968 v.11 no.4 pp. 379-388
ISSN:
0013-8703
Subject:
Dysdercus fasciatus; Dysdercus suturellus; adults; egg production; eggs; insects; longevity; oviposition; virgin females
Abstract:
... Egg production in mated and virgin females of the cotton stainer, Dysdercus fasciatus Signoret, was studied in the laboratory. No significant differences were found in adult longevity, pre-oviposition period, inter-oviposition period, the total number of eggs oviposited during the whole reproductive period, and the mean number of mature eggs retained in the ovaries at each oviposition. Thus, matin ...
DOI:
10.1111/j.1570-7458.1968.tb02067.x

2. The Response of Tribolium Confusum to Variations in the Volume of Its Environment

Author:
Daniel J. McDonald
Source:
Ecology 1968 v.49 no.6 pp. 1166-1168
ISSN:
0012-9658
Subject:
Tribolium confusum; adults; cannibalism; egg production; flour; mixing; mortality; polyethylene; population size
Abstract:
... The size of the population formed by the flour beetle Tribolium confusum has been found to depend on the volume of the environment rather than the amount of nutrient provided. This was determined by mixing powdered polyethylene with the flour medium, to vary the volume while holding the amount of nutrient constant. The polyethylene is probably not injurious to the adults for it appears to have no ...
DOI:
10.2307/1934504

3. Biomass Turnover, Respiration, and Interpopulation Variation in the Stream Limpet Ferrissia rivularis (Say)

Author:
Albert J. Burky
Source:
Ecological monographs 1971 v.41 no.3 pp. 235-251
ISSN:
0012-9615
Subject:
acclimation; adults; autumn; biomass; breeding; carbon; carbon nitrogen ratio; cell respiration; egg production; eggs; energy balance; eutrophication; genetic variation; limpets; longevity; metabolism; oviposition; oxygen consumption; primary productivity; respiratory rate; spring; streams; summer; temperature; winter; New York
Abstract:
... The stream limpet Ferrissia rivularis, which occurs extensively in North America and is ubiquitous in streams of upper New York State, was studied from two distinct populations, one located in the Canandaigua Outlet at Alloway, N. Y. (AL) and the other in Black Creek at Cleveland, N. Y. (BC). These environments differ substantially, that at AL being the more eutrophic. At BC there is one generatio ...
DOI:
10.2307/1942367

4. Population Regulation in Quill Mites (Acarina: Syringophilidae)

Author:
John Kethley
Source:
Ecology 1971 v.52 no.6 pp. 1113-1118
ISSN:
0012-9658
Subject:
Acari; Passer domesticus; adults; egg production; feathers; females; habitats; males; mites; molting; mouthparts; nestlings; spring
Abstract:
... The wing quills of the House Sparrow (Passer domesticus L.) may host as many as three species of quill mites, suggesting ecological differences in the quill mite habitat. Detailed investigation of a single species of quill mite, Syringophiloidus minor (Berl.) reveals adaptations that maximize mite success within the confines of the feather calmus and suggests a mechanism that allows partitioning o ...
DOI:
10.2307/1933821

5. Reproductive Cycles of Three Species of Anoline Lizards from the Isthmus of Panama

Author:
Owen J. Sexton; Edward P. Ortleb; Loline M. Hathaway; Royce E. Ballinger; Paul Licht
Source:
Ecology 1971 v.52 no.2 pp. 201-215
ISSN:
0012-9658
Subject:
Anolis limifrons; adults; dry season; edge effects; egg production; evaporation; females; forests; grasslands; lipids; lizards; males; photoperiod; plant litter; spermatozoa; temperature; testes; wet season; wind; Caribbean; Panama
Abstract:
... A study of the reproductive cycle of three species of lizards, a forest form, Anolis limifrons, a forest edge species, A. tropidogaster, and a grassland species, A. auratus, was carried out in the Isthmus of Panama from November 1965 until September 1969. The collecting sites were: Pacific side for all three species, mid—Isthmus for A. limifrons and A. auratus and Caribbean side for A. limifrons. ...
DOI:
10.2307/1934579

6. Oviposition, fertility, and longevity and their relation to copulation in antestiopsis lineaticollis (heteroptera: miridae)

Author:
ABASA, RUBEN O.
Source:
Entomologia experimentalis et applicata 1973 v. no. pp. 178-184
ISSN:
0013-8703
Subject:
Antestiopsis; Miridae; adults; copulation; death; egg production; eggs; females; longevity; males; oviposition; relative humidity
Abstract:
... Egg production, fertility, and longevity of solitary mated females and control pairs of males and females of Antestiopsis lineaticollis Stål. (= A. orbitalis bechuana Kirkaldy) were studied in the laboratory at 22-23° and 60-70% relative humidity. No significant differences were found in adult longevity, inter-oviposition period, number of eggs, post-reproductive period, and the number of eggs rem ...
DOI:
10.1111/j.1570-7458.1973.tb00263.x

7. Estimation of Energy Flow in Bird Communities: A Population Bioenergetics Model

Author:
John A. Wiens; George S. Innis
Source:
Ecology 1974 v.55 no.4 pp. 730-746
ISSN:
0012-9658
Subject:
adults; age structure; ambient temperature; biomass; birds; body weight; breeding; breeding season; clutch size; digestion; egg production; energy costs; energy flow; energy metabolism; energy requirements; fledglings; juveniles; migratory behavior; molting; mortality; phenology; population density; simulation models
Abstract:
... We describe a simulation model that estimates population density flux, biomass changes, and bioenergetic demands of bird populations, especially with reference to the breeding season. changes in the population density of adults of each species considered were calculated from breeding census values and information on migratory movements. Using field or literature values for clutch size, mortality r ...
DOI:
10.2307/1934410

8. Patterns of relationship between certain leafhoppers and plants. i. responses to plants

Author:
SAXENA, K.N.; GANDHI, J.R.; SAXENA, R.C.
Source:
Entomologia experimentalis et applicata 1974 v. no. pp. 303-318
ISSN:
0013-8703
Subject:
Empoasca; Gossypium arboreum; Gossypium herbaceum; Gossypium hirsutum; Ricinus communis; Solanum melongena; Solanum tuberosum; adults; egg production; insects; larvae; metamorphosis; molting; nutritive value; oviposition; proboscis
Abstract:
... Differences in the establishment of the leafhoppers Empoasca devastans and E. kerri motti on different plants are determined by an interaction of the following chief types of their responses in six main stages: (1) Orientation, (2) Feeding, (3) Metabolic utilization of the ingested food determining its nutritive value, (4) Growth, (5) Survival and egg-production, (6) Oviposition. Both the leafhopp ...
DOI:
10.1111/j.1570-7458.1974.tb00348.x

9. Structures and Dynamics of Populations of the Salamader Desmognathus Ochrophaeus Cope in Different Habitats

Author:
Stephen G. Tilley
Source:
Ecology 1974 v.55 no.4 pp. 808-817
ISSN:
0012-9658
Subject:
adults; age structure; animals; body size; clutch size; correlation; egg production; fecundity; females; genetic variation; habitats; juveniles; males; plant litter; sexual maturity; summer; testes; woodlands
Abstract:
... Two populations of Desmognathus ochrophaeus, one inhabiting a wet rockface created during the construction of a tunnel portal on the Blue Ridge Parkway and the other a wooded cover 145 m away, were compared with respect to size at maturity, growth rates, age structure, and fecundity. Woodland animals are larger at maturity than rockface animals. This is because of their faster juvenile growth rate ...
DOI:
10.2307/1934416

10. Population Biology of a Brine Fly (Diptera: Ephydridae) in the Presence of Abundant Algal Food

Author:
Nicholas C. Collins
Source:
Ecology 1975 v.56 no.5 pp. 1139-1148
ISSN:
0012-9658
Subject:
Ceratopogonidae; Chlamydomonas; Ephydra; Euglena; Zygogonium; acid tolerance; adults; algae; arthropods; egg production; evolution; food quality; herbivores; immatures; insect larvae; larval development; national parks; nutrients; oviposition sites; portion size; spatial variation; summer; temperature; toxins; United States
Abstract:
... A filamentous, water—holding mat of a slow—growing green alga (genus Zygogonium) is the structural basis of a simple community of acid—tolerant algae and arthropods in Yellowstone National Park, USA. Populations of interstitial algae, mostly Euglena mutabilis and Chlamydomonas, infuse certain areas of the Zygogonium mat. The major herbivore, Ephydra thermophila, has a very high instrinsic rate of ...
DOI:
10.2307/1936153

11. Use of 65Zn to Determine the Field Metabolism of the Snail Cepaea nemoralis L.

Author:
Philip Williamson
Source:
Ecology 1975 v.56 no.5 pp. 1185-1192
ISSN:
0012-9658
Subject:
Cepaea nemoralis; adults; carrots; egg production; energy; excretion; ingestion; isotopes; juveniles; metabolism; snails; temperature
Abstract:
... Zinc—65 elimination rates were measured in the laboratory for adult land snails, Cepaea nemoralis fed on carrot at 10°, 13°, 16°, and 22° and fed on a natural food material at 13°C, and for juveniles fed on carrot at 13°C. Ingestion, assimilation, production, and respiration were determined for each snail. Regressions between 65Zn loss and various aspects of metabolic activity were significant at ...
DOI:
10.2307/1936158

12. Mating ability, longevity and fecundity of the spiny bollworm, earias insulana (lepidoptera: noctuidae)

Author:
KEHAT, M.; GORDON, D.
Source:
Entomologia experimentalis et applicata 1977 v. no. pp. 267-273
ISSN:
0013-8703
Subject:
Earias insulana; adults; artificial diets; egg production; eggs; fecundity; females; longevity; males; moths; oviposition; rearing; reproductive success; spermatophores
Abstract:
... The mechanisms adopted to ensure mating success, fertility and fecundity of E. insulana (reared in the laboratory on an artificial diet) were studied. Male moths mate only once a night but mate several times (mean 4.2) during their life span. Females will mate up to 3 times per night and an average of 2.6 times over their life span. One spermatophore can nevertheless be sufficient for a female to ...
DOI:
10.1111/j.1570-7458.1977.tb02716.x

13. Life History and Population Energetics of the Dobson Fly, Corydalus Cornutus

Author:
Arthur V. Brown; Lloyd C. Fitzpatrick
Source:
Ecology 1978 v.59 no.6 pp. 1091-1108
ISSN:
0012-9658
Subject:
Corydalus cornutus; Diptera; acclimation; adults; egg masses; egg production; eggs; energy; females; hatching; instars; integument; larvae; males; prepupae; pupae; pupation; seasonal variation; streams; summer; temperature; univoltine habit; winter; Texas
Abstract:
... Rates and energies of consumption (C), egestion (F), assimilation (A), respiration (R), growth (Pg), production of exuviae (Pₑ ᵥ), and production of egg masses (Pᵣ) with associated efficiencies, and effects of seasonal temperature, weight and life—history stage upon them were examined for a typical individual and cohort of Corydalus cornutus (L.) from a stream in north—central Texas. Dobson flies ...
DOI:
10.2307/1938225

14. Food consumption and reproduction as affected by tethered flight in female milkweed bugs (oncopeltus fasciatus)

Author:
SLANSKY, FRANK Jr.
Source:
Entomologia experimentalis et applicata 1980 v.28 no.3 pp. 277-286
ISSN:
0013-8703
Subject:
Oncopeltus fasciatus; adults; body weight; egg production; energy costs; fecundity; females; insect flight; life history; longevity; migratory behavior; oviposition; starvation
Abstract:
... Duration of tethered flight (up to 5 hr/day for 6 days) had little effect on postflight food consumption, body weight and life history characteristics of adult female milkweed bugs, but when bugs were also starved during the 6 days, fecundity and longevity were negatively affected, especially for females flying more than about 19 hr. In both experiments the mean age at first oviposition of flown b ...
DOI:
10.1111/j.1570-7458.1980.tb03027.x

15. The Mole Crab Emerita talpoida (Say): A Case of Changing Life History Pattern

Author:
Humberto Diaz
Source:
Ecological monographs 1980 v.50 no.4 pp. 437-456
ISSN:
0012-9615
Subject:
Emerita talpoida; adults; animals; autumn; beaches; death; egg production; eggs; females; habitats; hurricanes; laboratory experimentation; life tables; longevity; males; mortality; overwintering; sex reversal; spawning; spring; summer; North Carolina
Abstract:
... Mole crabs of the genus Emerita are successful colonizers of exposed sandy beaches, in spite of the severity of the physical environment. An adult population of Emerita talpoida (Say) was studied for 2 yr to determine possible changes of its life history pattern as a consequence of its physically severe habitat. Adult populations were sampled in four localities on Bogue Banks, North Carolina, USA, ...
DOI:
10.2307/1942652

16. Effects of fenvalerate and azinphosmethyl on two-spotted spider mite and phytoseiid mites

Author:
PENMAN, D.R.; CHAPMAN, R.B.; JESSON, K.E.
Source:
Entomologia experimentalis et applicata 1981 v.30 no.1 pp. 91-97
ISSN:
0013-8703
Subject:
Phytoseiidae; Tetranychus urticae; adults; carbaryl; egg production; eggs; faba beans; fenvalerate; glass; leaves; mortality; oviposition; oviposition sites; predators; pyrethrins; walking
Abstract:
... The pyrethroid fenvalerate showed significantly faster activity against adult ♀ two-spotted spider mite Tetranychus urticae Koch c.f. azinphosmethyl using broad bean leaf discs sprayed in a Potter tower. LC₅₀s for fenvalerate were similar at 24 and 48 hr (0.056 and 0.051g AI/1) while LC₅₀s for azinphosmethyl were significantly different at 24 and 48 hr (0.72 and 0.38g AI/1, respectively). Mortalit ...
DOI:
10.1111/j.1570-7458.1981.tb03589.x

17. Evolution of reversed sexual size dimorphism and role partitioning among predatory birds, with a size scaling of flight performance

Author:
Source:
Biological journal of the Linnean Society 1981 v.15 no.2 pp. 105-130
ISSN:
0024-4066
Subject:
Stercorariidae; adults; birds of prey; body size; breeding; chicks; diet; egg production; eggs; evolution; feeds; females; flight; foraging; males; nests; progeny; sexual dimorphism
Abstract:
... To explain the adaptive significance of sex role partitioning and reversed sexual size dimorphism among raptors, owls and skuas, where females are usually larger than males, we combine several previous hypotheses with some new ideas. Owing to their structural and behavioural adaptations for prey capture, predatory birds have better prospects than other birds of defending their offspring against ne ...
DOI:
10.1111/j.1095-8312.1981.tb00752.x

18. Lecithin in synthetic larval diet for aedes aegypti improves larval and adult performance

Author:
SNELLER, VISHNU-PRIYA; DADD, R.H.
Source:
Entomologia experimentalis et applicata 1981 v.29 no.1 pp. 9-18
ISSN:
0013-8703
Subject:
Aedes aegypti; adults; animals; artificial diets; egg production; females; insect larvae; larval development; lecithins; liver; males; oviposition; pupae; pupation; rearing
Abstract:
... A chemically defined synthetic rearing medium was used to compare larval growth of Aedes aegypti with or without crude animal lecithin or synthetic dipalmitoyl lecithin. Pupal weights, adult female life spans and oviposition histories of pupae and adults derived from synthetic diet rearings and from crude culture (liver powder) rearings were also compared. Both lecithins improved larval growth rat ...
DOI:
10.1111/j.1570-7458.1981.tb03037.x

19. A Population Model of the Lizard Uta stansburiana in Southern Nevada

Author:
Frederick B. Turner; Philip A. Medica; Kent W. Bridges; Robert I. Jennrich
Source:
Ecological monographs 1982 v.52 no.3 pp. 243-259
ISSN:
0012-9615
Subject:
Gambelia; adults; age structure; air temperature; clutch size; data collection; egg production; equations; females; irrigation; lizards; models; population density; population dynamics; predation; prediction; rain; regression analysis; spring; survival rate; winter; yearlings; Nevada
Abstract:
... Population densities, reproduction, and survival of the lizard Uta stansburiana were measured at the Nevada Test Site in southern Nevada, USA, between 1964 and 1974. These data were used to develop a model of the population dynamics of this species. Results of irrigation experiments in 0.4—ha enclosures near Mercury, Nevada, were used to formulate multiple—regression equations predicting frequency ...
DOI:
10.2307/2937330

20. Patterns of Resource Use and Tests for Competitive Release in a Spider Community

Author:
Susan E. Riechert; Alan B. Cady
Source:
Ecology 1983 v.64 no.4 pp. 899-913
ISSN:
0012-9658
Subject:
Araneae; adults; cliffs; diet; egg production; juveniles; microhabitats; sandstone
Abstract:
... Determinations were made of the temporal, functional (diet), and spatial niche relations of four web—building spider species comprising 98.3% of the individuals of a sandstone rock outcrop community. Three of the species were found to be potential ecological equivalents; despite dissimilar web structures, significant overlaps (60—85%) were exhibited in their diets, timing of activity, and microhab ...
DOI:
10.2307/1937212