Steven A Ramm,Paula Stockley
Steven A Ramm
Male eagerness to mate is a central paradigm of sexual selection theory. However, limited sperm supplies mean that male sexual restraint might sometimes be favored under promiscuous mating. Here, we demonstrate dynamic plasticity in male ma...
Experimental evidence of impacts of an invasive parakeet on foraging behavior of native birds [0.03%]
入侵玫瑰鹦鹉对本土鸟类觅食行为影响的实证研究
Hannah L Peck,Henrietta E Pringle,Harry H Marshall et al.
Hannah L Peck et al.
Resource competition is one potential behavioral mechanism by which invasive species can impact native species, but detecting this competition can be difficult due to the interactions that variable environmental conditions can have on speci...
An arms race between producers and scroungers can drive the evolution of social cognition [0.03%]
在生产者和剥削者之间的军备竞赛可以推动社交认知的进化
Michal Arbilly,Daniel B Weissman,Marcus W Feldman et al.
Michal Arbilly et al.
The "social intelligence hypothesis" states that the need to cope with complexities of social life has driven the evolution of advanced cognitive abilities. It is usually invoked in the context of challenges arising from complex intragroup ...
Paternal care and the evolution of exaggerated sexual swellings in primates [0.03%]
父爱与灵长类动物性肿胀进化的关联性研究
Susan C Alberts,Courtney L Fitzpatrick
Susan C Alberts
The exaggerated sexual swellings exhibited by females of some primate species have been of interest to evolutionary biologists since the time of Darwin. We summarize existing hypotheses for their function and evolution and categorize these ...
Lethal combat over limited resources: testing the importance of competitors and kin [0.03%]
关乎有限资源的致命搏杀：竞争者与同亲的重要性的检验
Tabitha M Innocent,Stuart A West,Jennifer L Sanderson et al.
Tabitha M Innocent et al.
Although most animals employ strategies to avoid costly escalation of conflict, the limitation of critical resources may lead to extreme contests and fatal fighting. Evolutionary theories predict that the occurrence and intensity of fights ...
Virginity and the clutch size behavior of a parasitoid wasp where mothers mate their sons [0.03%]
处女膜和一种雌虫与雄虫交配的寄生黄蜂的窝卵数行为
Jun Abe,Tabitha M Innocent,Sarah E Reece et al.
Jun Abe et al.
Theoretical and empirical research on the evolution of clutch size has proved to be an extremely productive area of evolutionary biology. A general prediction is that individuals should produce a smaller number of offspring when resources a...
Size and competitive mating success in the yeast Saccharomyces cerevisiae [0.03%]
大小和竞争交配成功率在酵母 Saccharomyces cerevisiae 中的研究
Carl Smith,Andrew Pomiankowski,Duncan Greig
Carl Smith
In unicellular organisms like yeast, mating with the right partner is critical to future fitness because each individual can only mate once. Because cell size is important for viability, mating with a partner of the right size could be a si...
Effects of age and experience on contest behavior in the burying beetle, Nicrophorus vespilloides [0.03%]
年龄和经验对栖甲虫(Nicrophorus vespilloides)争斗行为的影响
Victoria E Lee,Megan L Head,Mauricio J Carter et al.
Victoria E Lee et al.
Contest behavior forms an important part of reproductive investment. Life-history theory predicts that as individuals age and their residual reproductive value decreases, they should increase investment in contest behavior. However, other f...
Biparental incubation patterns in a high-Arctic breeding shorebird: how do pairs divide their duties? [0.03%]
高北极繁殖涉禽的双亲孵卵模式：一对如何分工？
Martin Bulla,Mihai Valcu,Anne L Rutten et al.
Martin Bulla et al.
In biparental species, parents may be in conflict over how much they invest into their offspring. To understand this conflict, parental care needs to be accurately measured, something rarely done. Here, we quantitatively describe the outcom...
Franziska C Schaedelin,Wouter F D van Dongen,Richard H Wagner
Franziska C Schaedelin
Parental care of unrelated offspring is widespread but not well understood. We used 11 polymorphic microsatellite loci to investigate the relatedness of fry and parentally caring adults in a 118-nest colony of the socially and genetically m...