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Showing 1 to 20 of 47 for “"mating behavior"”.
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Mating behavior of the alfalfa weevil, Hypera postica (Gyllenhal)
The qualitative and quantitative aspects of mating behavior, the stimulus for locating and mating, and the effects of varying temperatures on mating behavior and oviposition were studied in the laboratory. Postdiapausing weevils, collected in April, and nondiapausing weevils, reared in the …
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Oxytocin, Dopamine, and the Neuromodulation of Mating Behavior in C. Elegans
… "why" of oxytocin as a releaser of reproductive behavior. To do so, I take the wide view across 600 million years of metazoan evolution, focusing on the oxytocin-mediated mating behavior and physiology of the often-overlooked invertebrates. By looking to these simpler animals with both smaller, …
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Endocrine aspects of the genetics of mating behavior in the domestic fowl
… mechanisms underlying the genetic variation of mating behavior in bidirectionally selected lines of chickens. Birds utilized included the Athens-Canadian random bred population and lines that had undergone 13 and 14 generations of selection for high and low cumulative number of completed …
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Factors influencing parasite-related supression of mating behavior in the isopod caecidotea intermedius
… with altered pigmentation, antipredatory behavior, and changes in mating behavior in arthropod intermediate hosts that increase risks of predation by definitive vertebrate hosts. Additionally, these changes have been shown to associate with the developmental stage of the parasite which …
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Factors influencing parasite-related suppression of mating behavior in the isopod Caecidotea intermedius
… with altered pigmentation, antipredatory behavior, and changes in mating behavior in arthropod intermediate hosts that increase risks of predation by definitive vertebrate hosts. Additionally, these changes have been shown to associate with the developmental stage of the parasite which …
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Neural and endocrine control of mating behavior in selected mating lines of chickens and quail
… known to be involved in the control of sexual behavior were studied in lines of chickens and quail genetically selected for high (HML) and low (LML) cumulative number of completed matings (CNCM). In the initial experiment, discrete bilateral lesions were stereotaxically placed in the ruber …
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The Effects of Lesions in The Limbic System on Courtship and Mating Behavior of Male Rats
Made available in DSpace on 2014-12-09T23:33:53Z (GMT). No. of bitstreams: 1 6604240.pdf: 3939830 bytes, checksum: 94fc807df0c3c58628e7278b19462178 (MD5) Previous issue date: 1965
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Mating behavior and the effects of turbidity on preferences for size in the fountain darter, Etheostoma fonticola
… in aquatic communities and may affect the behavior of individual animals, including altering foraging and anti-predator behavior as well as mating preferences. The fountain darter, Etheostoma fonticola, is federally endangered making it an especially important species for examining the …
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Role of MOA-1, an Anti-phosphatase, and APL-1, an APP-related Protein, in Morphogenesis and Mating Behavior in Caenorhabditis elegans
… have many phenotypic defects, which include poor mating and delayed development; at the restrictive temperature, <em>apl-1</em>(yn5) mutants show an incompletely penetrant lethality. moa-1 mutations suppress the<em> apl-1</em>(yn5) lethality at the restrictive temperature. Surprisingly, …
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A Tale of Two Butterflies: The Effect of Larval Social Environment and Circadian Rhythms on Mating Behavior in Bicyclus anynana and Heliconius hewitsoni
… fitness. Through analysis of recorded behavior, I also showed that male harassment did not influence female mate choice. In my second experiment I examined circadian rhythms, specifically regarding courtship. I demonstrated that H. hewitsoni exhibits circadian rhythms, including a …
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An Assessment of the Effects of Sexual Selection and the Social Environment on Mating Behaviors in Two Tiger Beetle Species (Coleoptera: cicindelidae)
Mate guarding is a sexually selected behavior performed by males of many species that results due to sperm competition. Facultative mating behaviors are predicted to occur in these taxa when changes in the social environment alter the benefits for guarding males. I used field observations and lab …
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Genetic analyses of reproductive behavior in the domestic fowl and the Japanese quail
… further the genetics and physiology of sexual behavior in chickens and Japanese quail. The populations used in this research included lines that had undergone over 20 generations of divergent selection for high and low mating frequency and the random bred control population from which the …
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A study of hormones and reproduction in male and female turkeys under natural mating or artificial insemination conditions
This study evaluated mating behaviors of turkeys, the effects of these behaviors on reproduction, the effects of the presence or absence of the opposite sex on reproduction and changes in serum luteinizing hormone (LH) and prolactin concentrations due to natural mating or artificial insemination. …
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Logistic growth curve parameter estimates for scrotal circumference and relationships with female reproduction in crossbred sheep
… Fertility, prolificacy and postweaning spring mating behavior of ewes that had lambed were measured. After ewes lambed, they were exposed to vasectomized rams and checked for postweaning spring mating behavior. Restricted maximum likelihood (REML) was used to estimate variance components for …
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Evidence for the Sensory Receptor(s) of the Mounting Sex Pheromone in Two Species of Ixodid Ticks, <i>Dermacentor variabilis</i> (Say) and <i>Dermacentor andersoni</i> Stiles
… apotele of the claw and one on the ventral side. Behavioral bioassays and morphological study of these setae revealed that only the dorsal and middle (= lateral) pairs of claw sensilla are mechanogustatory, while the ventral pair are strictly mechanoreceptors. The dorsal and middle sensory setae …
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Effects of breed and ram exposure on Spring estrous behavior and Summer fertility in domestic ewes
… marking harnesses for use as an indicator of mating behavior in ewes. The first study tested the effects of introduction of vasectomized rams into a flock: of' 50 Dorset (D) and 50 Hampshire (H) purebred ewes in either May or June. More D ewes ovulated (96% vs 72% for H ewes) and mated (80% vs …
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A study of the effect of environmental lighting on growth, reproduction and behavior in turkeys (Meleagris gallopavo)
… lighting on growth, reproduction and behavior in turkeys. During the growth phase a Large White and a Medium White line of turkeys were reared on an intermittent (2L:2D) or a diurnal (12L:l2D) light regimens under white, red (650 nm) or blue (450 nm) light environments. The turkeys …
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Identification and Characterization of Sex-Specific Transcripts in the Blood-Brain Barrier of Drosophila melanogaster
… stereotypic acts in courting a female. This behavior is mainly controlled by male specific transcription factors that define male neuronal circuits inside the brain. In our lab, we have shown that male factors which are secreted outside of the CNS are also required for normal mating behavior. …
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The Creation of Metropolitan Amazonia: Genetic Consequences of Migration and Urbanization
… natural selection, and (3) human migratory and mating behavior.
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