Search Results - "Roberts, Eila K"

Shifts in Male Reproductive Tactics over the Life Course in a Polygynandrous Mammal by Silk, Joan B., Städele, Veronika, Roberts, Eila K., Vigilant, Linda, Strum, Shirley C.

“…In polygynous and polygynandrous species, there is often intense male-male competition over access to females, high male reproductive skew, and more male…”
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A Bruce Effect in Wild Geladas by Roberts, Eila K., Lu, Amy, Bergman, Thore J., Beehner, Jacinta C.

“…Female rodents are known to terminate pregnancies after exposure to unfamiliar males ("Bruce effect"). Although laboratory support abounds, direct evidence for…”
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Developmental Programming: Postnatal Steroids Complete Prenatal Steroid Actions to Differentially Organize the GnRH Surge Mechanism and Reproductive Behavior in Female Sheep by Jackson, Leslie M, Mytinger, Andrea, Roberts, Eila K, Lee, Theresa M, Foster, Douglas L, Padmanabhan, Vasantha, Jansen, Heiko T

“…In female sheep, estradiol (E2) stimulates the preovulatory GnRH/LH surge and receptive behavior, whereas progesterone blocks these effects. Prenatal exposure…”
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Testing extraction and storage parameters for a fecal hormone method by Pappano, David J., Roberts, Eila K., Beehner, Jacinta C.

“…Four experiments were conducted to test different aspects of a “field‐friendly” fecal hormone extraction method that utilizes methanol extraction in the field…”
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Differential Effects of Prenatal Testosterone Timing and Duration on Phenotypic and Behavioral Masculinization and Defeminization of Female Sheep by Roberts, Eila K, Padmanabhan, Vasantha, Lee, Theresa M

“…The process of sexual differentiation leaves genetically female individuals at risk of being masculinized by exogenous androgens. Previous research with sheep…”
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Juvenile Rank Can Predict Male-Typical Adult Mating Behavior in Female Sheep Treated Prenatally with Testosterone by Roberts, Eila K, Flak, Jonathan N, Ye, Wen, Padmanabhan, Vasantha, Lee, Theresa M

“…Previous research with female sheep indicates that exposure to excess testosterone for 60 days (from Gestational Days 30-90 of the 147-day gestation) leads to…”
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Male‐mediated prenatal loss: Functions and mechanisms by Zipple, Matthew N., Roberts, Eila K., Alberts, Susan C., Beehner, Jacinta C.

“…ABSTRACT Sexually selected infanticide has been the subject of intense empirical and theoretical study for decades; a related phenomenon, male‐mediated…”
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Female Reproductive Parameters in Wild Geladas (Theropithecus gelada) by Roberts, Eila K., Lu, Amy, Bergman, Thore J., Beehner, Jacinta C.

“…Accurate data on reproductive parameters are essential for evaluating the adaptive and mechanistic bases of variation within and between species. Here, we…”
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The Bruce effect should be defined by function, not mechanism: comments on ‘How to escape male infanticide: mechanisms for avoiding or terminating pregnancy in mammals’ by Zipple, Matthew N., Roberts, Eila K., Alberts, Susan C., Beehner, Jacinta C.

“…Bartoš et al. (2021; Mammal Review 51: 143–153; https://doi.org/10.1111/mam.12219) reviewed the mechanisms involved in the ‘Bruce effect’ – a phenomenon…”
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Evidence for tactical concealment in a wild primate by le Roux, Aliza, Snyder-Mackler, Noah, Roberts, Eila K., Beehner, Jacinta C., Bergman, Thore J.

“…Theory predicts that cheating individuals should alter their behaviour to avoid detection, yet empirical data for such ‘deceptive’ behaviour (and its putative…”
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Effect of prenatal androgens on click-evoked otoacoustic emissions in male and female sheep ( Ovis aries) by McFadden, Dennis, Pasanen, Edward G., Valero, Michelle D., Roberts, Eila K., Lee, Theresa M.

“…Otoacoustic emissions (OAEs) were measured in male and female Suffolk sheep ( Ovis aries). Some sheep had been administered androgens or estrogens during…”
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Differential Effects of Prenatal Testosterone Timing and Duration on Phenotypic and Behavioral Masculinization and Defeminization of Female Sheep1 by Roberts, Eila K, Padmanabhan, Vasantha, Lee, Theresa M

“…The process of sexual differentiation leaves genetically female individuals at risk of being masculinized by exogenous androgens. Previous research with sheep…”
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Juvenile Rank Can Predict Male-Typical Adult Mating Behavior in Female Sheep Treated Prenatally with Testosterone1 by Roberts, Eila K, Flak, Jonathan N, Ye, Wen, Padmanabhan, Vasantha, Lee, Theresa M

“…Previous research with female sheep indicates that exposure to excess testosterone for 60 days (from Gestational Days 30–90 of the 147-day gestation) leads to…”
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Dissociation between distortion-product and click-evoked otoacoustic emissions in sheep ( Ovis aries ) by McFadden, Dennis, Pasanen, Edward G., Valero, Michelle D., Roberts, Eila K., Lee, Theresa M.

“…Distortion-product otoacoustic emissions (DPOAEs) were weak or absent in about one-third of sheep ( Ovis aries ) of both sexes tested for otoacoustic emissions…”
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Dissociation between distortion-product and click-evoked otoacoustic emissions in sheep (Ovis aries) by MCFADDEN, Dennis, PASANEN, Edward G, VALERO, Michelle D, ROBERTS, Eila K, LEE, Theresa M

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Otoacoustic emissions in sheep (Ovis aries): Sex differences and prenatal androgen effects by McFadden, Dennis, Pasanen, Edward, Valero, Michelle D., Roberts, Eila K., Lee, Theresa M.

“…Otoacoustic emissions (OAEs) were measured in Suffolk sheep (Ovis aries), the first ruminant species tested for OAEs to our knowledge. Some sheep had been…”
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