Results 41 to 50 of about 161,421 (174)

Copulation Calls in Female Chimpanzees ( Pan troglodytes schweinfurthii ) Convey Identity but Do Not Accurately Reflect Fertility [PDF]

open access: yes, 2018
Copulation calls are a relatively common feature of female primate behavior thought to function in the advertisement of female receptivity and subsequent incitation of male-male competition.
Deschner, Tobias   +2 more
core  

Gonadotrophin-releasing hormone agonist protocols for pituitary suppression in assisted reproduction [PDF]

open access: yes, 2015
Peer reviewedPublisher ...
Basios, George   +4 more
core   +1 more source

A multi‐trait evaluation of patterns and fitness consequences of breeding phenology plasticity with nocturnal warming and food restriction in a lizard

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1233-1250, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Faced with climate warming, ectothermic species shift their breeding phenology, which is in part attributed to an acceleration of gestation or incubation in warmer environments.
Théo Bodineau   +7 more
wiley   +1 more source

Environmental tolerance [PDF]

open access: yes, 1987
A theory for the expression of a population's response to density-independent gradients of environmental factors is derived for the case of asexuality. It is shown that the environmental tolerance of a genotype is a function of at least four parameters ...
Gabriel, Wilfried, Lynch, Michael
core   +1 more source

Gendering the Menstrual Cycle in Behavioral Neuroendocrinology

open access: yesAmerican Journal of Human Biology, Volume 38, Issue 4, April 2026.
ABSTRACT The menstrual cycle is increasingly described as a “vital sign of the female body,” with the literature suggesting cycle‐related brain and behavioral changes. With growing interest in the effects that the menstrual cycle has on the brain, body and mind, characterizing what constitutes healthy cycle‐related change has become a central goal of ...
Annie Duchesne   +2 more
wiley   +1 more source

Sex-specific reproductive behaviours and paternity in free-ranging Barbary macaques (Macaca sylvanus) [PDF]

open access: yes
In a wide variety of species, male reproductive success is determined by contest for access to females. Among multi-male primate groups, however, factors in addition to male competitive ability may also influence paternity outcome, although their exact ...
A Engelhardt   +124 more
core   +1 more source

Comparing parasitoid life histories [PDF]

open access: yes, 2016
Species and clades are characterized by their unique combinations, or suites, of different life history traits. In parasitoids, traits include a core group common to other organisms, and a parasitoid-specific group.
Askew   +114 more
core   +1 more source

Rebreeding of Female Mountain Lions After Litter Mortality

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We documented rapid rebreeding by female mountain lions (Puma concolor) following litter loss, including the shortest known rebreeding interval to date. These observations highlight the importance of infanticide and intraguild competition in shaping female fitness and population dynamics.
Mark A. Peyton   +3 more
wiley   +1 more source

A Microfiber‐Reinforced Janus Hydrogel E‐Skin With Recyclable Feature for Multimodal Sensing and Gender‐Specific Physiological Monitoring

open access: yesAdvanced Science, Volume 13, Issue 17, 23 March 2026.
Hydrogel‐based wearable electronics hold great promise for physiological monitoring in privacy‐sensitive regions. In this study, a polyurethane (PU) microfiber‐reinforced gelatin hydrogel e‐skin is developed, boasting multiple advantages such as ultra‐thinness, high toughness, and long‐term skin conformability.
Yarong Ding   +11 more
wiley   +1 more source

Mate-guarding constrains feeding activity but not energetic status of wild male long-tailed macaques (Macaca fascicularis). [PDF]

open access: yes, 2014
Mate-guarding is an important determinant of male reproductive success in a number of species. Little is known however about the constraints of this behaviour, e.g. the associated energetic costs. We investigated these costs in long-tailed macaques where
A Engelhardt   +88 more
core   +1 more source

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