Testing the priority-of-access model in a seasonally breeding primate species [0.03%]
一种季节性繁殖的类人动物优先接触模型的检验
Constance Dubuc,Laura Muniz,Michael Heistermann et al.
Constance Dubuc et al.
In mammals, when females are clumped in space, male access to receptive females is usually determined by a dominance hierarchy based on fighting ability. In polygynandrous primates, as opposed to most mammalian species, the strength of the ...
The genetic mating system of a sea spider with male-biased sexual size dimorphism: evidence for paternity skew despite random mating success [0.03%]
一种雄性体型偏大的海蜘蛛的遗传交配制度：尽管随机交配成功，但仍存在父系偏向的证据
Felipe S Barreto,John C Avise
Felipe S Barreto
Male-biased size dimorphism is usually expected to evolve in taxa with intense male-male competition for mates, and it is hence associated with high variances in male mating success. Most species of pycnogonid sea spiders exhibit female-bia...
Age and sex influence marmot antipredator behavior during periods of heightened risk [0.03%]
年龄和性别影响土拨鼠在高风险时期的反捕食行为
Amanda J Lea,Daniel T Blumstein
Amanda J Lea
Animals adjust their antipredator behavior according to environmental variation in risk, and to account for their ability to respond to threats. Intrinsic factors that influence an animal's ability to respond to predators (e.g., age, body c...
Novel methods for discriminating behavioral differences between stickleback individuals and populations in a laboratory shoaling assay [0.03%]
一种用于实验室鱼群实验中三刺鱼个体及种群行为差异区分的新方法
Abigail R Wark,Barry J Wark,Tessa J Lageson et al.
Abigail R Wark et al.
Threespine sticklebacks (Gasterosteus aculeatus) from different habitats have been observed to differ in shoaling behavior, both in the wild and in laboratory studies. In the present study, we surveyed the shoaling behavior of sticklebacks ...
Can faecal glucocorticoid metabolites be used to monitor body condition in wild Upland geese Chloephaga picta leucoptera? [0.03%]
粪便皮质类固醇代谢物能用于监测白翅拟凤头鸭（Chloephaga picta leucoptera）的体况吗？
Anja Gladbach,David Joachim Gladbach,Martina Koch et al.
Anja Gladbach et al.
The measurement of faecal glucocorticoid metabolites is used as a non-invasive technique to study stress in animal populations. They have been used most widely in mammals, and mammalian studies have also treated issues such as sample stabil...
Prior residency advantage for Atlantic salmon in the wild: effects of habitat quality [0.03%]
大西洋鲑鱼野外生存的早期居住者优势：栖息地质量的影响
Eli Kvingedal,Sigurd Einum
Eli Kvingedal
Prior residency advantages have been explained by an asymmetry between the 'owner' and the 'intruder' in fighting ability (resource-holding potential) or motivation (value asymmetry (VA)). Here, we tested for the extent of prior residence e...
Support for maternal manipulation of developmental nutrition in a facultatively eusocial bee, Megalopta genalis (Halictidae) [0.03%]
支持副社会性蜜蜂Megalopta genalis母体调控发育营养的机制研究
Karen M Kapheim,Sandra P Bernal,Adam R Smith et al.
Karen M Kapheim et al.
Developmental maternal effects are a potentially important source of phenotypic variation, but they can be difficult to distinguish from other environmental factors. This is an important distinction within the context of social evolution, b...
Maternal investment, sibling competition, and offspring survival with increasing litter size and parity in pigs (Sus scrofa) [0.03%]
母体投资、同胞竞争和猪（Sus scrofa）随着产仔数和胎次的增加而增加的后代存活率
Inger Lise Andersen,Eric Nævdal,Knut Egil Bøe
Inger Lise Andersen
The aim of this study was to examine the effects of litter size and parity on sibling competition, piglet survival, and weight gain. It was predicted that competition for teats would increase with increasing litter size, resulting in a high...
Within-group behavioral variation promotes biased task performance and the emergence of a defensive caste in a social spider [0.03%]
种内行为差异促进社会蜘蛛偏倚任务表现及守卫阶型的产生
Jonathan N Pruitt,Susan E Riechert
Jonathan N Pruitt
The social spider Anelosimus studiosus exhibits a behavioral polymorphism where colony members express either a passive, tolerant behavioral tendency (social) or an aggressive, intolerant behavioral tendency (asocial). Here we test whether ...
Nestmate recognition in social insects: overcoming physiological constraints with collective decision making [0.03%]
社会性昆虫的同巢识别：利用集体决策克服生理限制
Brian R Johnson,Ellen van Wilgenburg,Neil D Tsutsui
Brian R Johnson
Social insects rank among the most abundant and influential terrestrial organisms. The key to their success is their ability to form tightly knit social groups that perform work cooperatively, and effectively exclude non-members from the co...