Imperfect past and present progressive: beak color reflects early-life and adult exposure to antigen [0.03%]
不完美的过去和现在进行时：鸟喙颜色反映了早期生活和成年期的抗原暴露
Loren Merrill,Madeleine F Naylor,Jennifer L Grindstaff
Loren Merrill
Secondary sexual traits may convey information about individual condition. We assessed the capacity for immune challenge with lipopolysaccharide (LPS) or keyhole limpet hemocyanin (KLH) during the prenatal and early postnatal stages to impa...
Tim Burton,Grethe Robertsen,David C Stewart et al.
Tim Burton et al.
In species where parental care occurs primarily via the provisioning of eggs, older females tend to produce larger offspring that have better fitness prospects. Remarkably however, a relationship between age of mother and fitness of offspri...
Wherever I may roam: social viscosity and kin affiliation in a wild population despite natal dispersal [0.03%]
无处不往：尽管存在出生后扩散行为，亲缘关系仍可增加野外群体中的社会黏性
Ada M Grabowska-Zhang,Camilla A Hinde,Colin J Garroway et al.
Ada M Grabowska-Zhang et al.
Dispersal affects the social contexts individuals experience by redistributing individuals in space, and the nature of social interactions can have important fitness consequences. During the vagrancy stage of natal dispersal, after an indiv...
Manipulating carer number versus brood size: complementary but not equivalent ways of quantifying carer effects on offspring [0.03%]
操控照料者数量与子代数量：量化照料者对后代影响的互补但不等同的方法
A L Liebl,L E Browning,A F Russell
A L Liebl
Experiments designed to quantify the effects of increasing numbers of carers on levels of offspring care are rare in cooperative breeding systems, where offspring are reared by individuals additional to the breeding pair. This paucity might...
Paroxetine exposure skews litter sex ratios in mice suggesting a Trivers-Willard process [0.03%]
帕罗西汀暴露使小鼠窝中雄性和雌性的比例失衡，并提出了特里弗斯-威尔德效应的假说
Shannon Marie Gaukler,James Steven Ruff,Wayne K Potts
Shannon Marie Gaukler
While conducting a toxicity assessment of the antidepressant paroxetine (Paxil®), in wild-derived mice (Mus musculus), we observed that exposed dams (P0) produced female biased litters (32:68 M:F). Though numerous experimental manipulation...
Drivers and fitness consequences of dispersive migration in a pelagic seabird [0.03%]
鹱形鸟类扩张迁徙的驱动因素及其适应性意义
Annette L Fayet,Robin Freeman,Akiko Shoji et al.
Annette L Fayet et al.
Animals can be flexible in their migration strategies, using several wintering sites or a variety of routes. The mechanisms promoting the development of these migratory patterns and their potential fitness consequences are poorly understood...
Feeding habitat quality and behavioral trade-offs in chimpanzees: a case for species distribution models [0.03%]
基于物种分布模型的黑猩猩取食生境质量及行为权衡的案例分析
Steffen Foerster,Ying Zhong,Lilian Pintea et al.
Steffen Foerster et al.
The distribution and abundance of food resources are among the most important factors that influence animal behavioral strategies. Yet, spatial variation in feeding habitat quality is often difficult to assess with traditional methods that ...
Variable ecological conditions promote male helping by changing banded mongoose group composition [0.03%]
变动的生态条件通过改变条纹獴群体组成促进雄性的帮助行为
Harry H Marshall,Jennifer L Sanderson,Francis Mwanghuya et al.
Harry H Marshall et al.
Ecological conditions are expected to have an important influence on individuals' investment in cooperative care. However, the nature of their effects is unclear: both favorable and unfavorable conditions have been found to promote helping ...
Alison Bell
Alison Bell
There is a growing interest among behavioral ecologists in behavioral syndromes and animal personality. Studies of behavioral syndromes repeatedly measure the same individuals to quantify within-individual consistency and between-individual...
Comparing pre- and post-copulatory mate competition using social network analysis in wild crickets [0.03%]
基于社交网络分析法的野外蟋蟀交配竞争研究
David N Fisher,Rolando Rodríguez-Muñoz,Tom Tregenza
David N Fisher
Sexual selection results from variation in success at multiple stages in the mating process, including competition before and after mating. The relationship between these forms of competition, such as whether they trade-off or reinforce one...