Jacob A Feder,Jacinta C Beehner,Alice Baniel et al.
Jacob A Feder et al.
Female reproductive maturation is a critical life-history milestone, initiating an individual's reproductive career. Studies in social mammals have often focused on how variables related to nutrition influence maturation age in females. How...
Harvester ant nest architecture is more strongly affected by intrinsic than extrinsic factors [0.03%]
收割蚁巢结构受内在因素影响大于外在因素
Sean O&#x;Fallon,Eva Sofia Horna Lowell,Doug Daniels et al.
Sean O&#x;Fallon et al.
Behavior is shaped by genes, environment, and evolutionary history in different ways. Nest architecture is an extended phenotype that results from the interaction between the behavior of animals and their environment. Nests built by ants ar...
Breeding site fidelity is lower in polygamous shorebirds and male-biased in monogamous species [0.03%]
偏多项群的固定繁殖场行为较低，并且在单配制物种中雄性较多
Eunbi Kwon,Mihai Valcu,Margherita Cragnolini et al.
Eunbi Kwon et al.
Sex-bias in breeding dispersal is considered the norm in many taxa, and the magnitude and direction of such sex-bias is expected to correlate with the social mating system. We used local return rates in shorebirds as an index of breeding si...
Made-up mouths with preen oil reveal genetic and phenotypic conditions of starling nestlings [0.03%]
涂抹凤头油脂的假嘴反映凤头雀巢雏鸟的基因型和表型状况
Juan José Soler,Ester Martínez-Renau,Manuel Azcárate-García et al.
Juan José Soler et al.
Animal coloration results from pigments, nanostructures, or the cosmetic use of natural products, and plays a central role in social communication. The role of cosmetic coloration has traditionally been focused in scenarios of sexual select...
Size-dependent aggression towards kin in a cannibalistic species [0.03%]
体型决定了同类相食物种之间的攻击行为大小依赖性攻击同族在一种同类相食的物种中
Chloe A Fouilloux,Lutz Fromhage,Janne K Valkonen et al.
Chloe A Fouilloux et al.
In juveniles extreme intraspecies aggression can seem counter-intuitive, as it might endanger their developmental goal of surviving until reproductive stage. Ultimately, aggression can be vital for survival, although the factors (e.g., gene...
Dying to cooperate: the role of environmental harshness in human collaboration [0.03%]
艰难困苦出人情：环境恶劣程度在人类合作中的作用
Paul Ibbotson,Cristian Jimenez-Romero,Karen M Page
Paul Ibbotson
It has been proposed that environmental stress acted as a selection pressure on the evolution of human cooperation. Through agent-based evolutionary modelling, mathematical analysis, and human experimental data we illuminate the mechanisms ...
Structural equation modeling reveals determinants of fitness in a cooperatively breeding bird [0.03%]
结构方程模型解析合作繁殖鸟类的适合度决定因素
Michela Busana,Franz J Weissing,Martijn Hammers et al.
Michela Busana et al.
Even in well-studied organisms, it is often challenging to uncover the social and environmental determinants of fitness. Typically, fitness is determined by a variety of factors that act in concert, thus forming complex networks of causal r...
Cold winters have morph-specific effects on natal dispersal distance in a wild raptor [0.03%]
寒冷的冬季对猛禽natal dispersal距离有形态特定的影响
Arianna Passarotto,Chiara Morosinotto,Jon E Brommer et al.
Arianna Passarotto et al.
Dispersal is a key process with crucial implications in spatial distribution, density, and genetic structure of species' populations. Dispersal strategies can vary according to both individual and environmental features, but putative phenot...
Sarah Catherine Paul,Caroline Müller
Sarah Catherine Paul
Studies on intraspecific contest behavior predominantly focus on contests between individuals of the same sex, however contest behavior is also expected to occur between individuals of the opposite sex including possible mates. Here we inve...
Testing hormonal responses to real and simulated social challenges in a competitive female bird [0.03%]
通过真实和模拟的社会挑战测试竞争性雌鸟的激素反应
Elizabeth M George,Sarah E Wolf,Alexandra B Bentz et al.
Elizabeth M George et al.
Competitive interactions often occur in series; therefore animals may respond to social challenges in ways that prepare them for success in future conflict. Changes in the production of the steroid hormone testosterone (T) are thought to me...