Terminal investment and senescence in rhesus macaques (Macaca mulatta) on Cayo Santiago [0.03%]
加亚圣地亚哥岛上恒河猴的终末投资与衰老现象
Christy L Hoffman,James P Higham,Adaris Mas-Rivera et al.
Christy L Hoffman et al.
Long-lived iteroparous species often show aging-related changes in reproduction that may be explained by 2 non-mutually exclusive hypotheses. The terminal investment hypothesis predicts increased female reproductive effort toward the end of...
Color signal information content and the eye of the beholder: a case study in the rhesus macaque [0.03%]
色彩信号的信息内容和观察者的情况：恒河猴的研究案例分析
James P Higham,Lauren J N Brent,Constance Dubuc et al.
James P Higham et al.
Animal coloration has provided many classical examples of both natural and sexual selection. Methods to study color signals range from human assessment to models of receiver vision, with objective measurements commonly involving spectrometr...
Songbird chemosignals: volatile compounds in preen gland secretions vary among individuals, sexes, and populations [0.03%]
鸟类化学信号：颊窝腺分泌物中的挥发性化合物因个体、性别和种群而异
Danielle J Whittaker,Helena A Soini,Jonathan W Atwell et al.
Danielle J Whittaker et al.
Chemical signaling has been documented in many animals, but its potential importance in avian species, particularly songbirds, has received far less attention. We tested whether volatile compounds in the preen oil of a songbird (Junco hyema...
Seismic signal dominance in the multimodal courtship display of the wolf spider Schizocosa stridulans Stratton 1991 [0.03%]
狼蛛属的一种地蜈蚣Wolf Spider发出地震信号在多模式求偶展示中占主导地位
Eileen A Hebets
Eileen A Hebets
Unraveling the function and evolutionary history of multimodal signaling is a difficult, yet common task of much research in animal communication. Here, I investigated multimodal signal function in the visual and seismic courtship display o...
Sperm investment in male meadow voles is affected by the condition of the nearby male conspecifics [0.03%]
附近的同性竞争者会影响近邻草原田鼠的精子投资策略
Ashlee A Vaughn,Javier Delbarco-Trillo,Michael H Ferkin
Ashlee A Vaughn
Sperm competition occurs when 2 or more males copulate with a particular female during the same reproductive cycle, and their sperm compete to fertilize the female's available eggs. One strategy that male voles use to assess the risk and in...
Holger Schielzeth,Wolfgang Forstmeier
Holger Schielzeth
Mixed-effect models are frequently used to control for the nonindependence of data points, for example, when repeated measures from the same individuals are available. The aim of these models is often to estimate fixed effects and to test t...
Size and heterozygosity influence partner selection in the Formosan subterranean termite [0.03%]
体型和杂合子优势影响台湾乳白蚁的配偶选择
Claudia Husseneder,Dawn M Simms
Claudia Husseneder
In monogamous species that exhibit extensive biparental investment, such as termites, both sexes are predicted to be selective when choosing a mate. Size-related traits are expected to be important in partner selection because the fat reser...
Courtship attention in sagebrush lizards varies with male identity and female reproductive state [0.03%]
拟步甲科色ipedosaurus属蜥蜴的求偶注意度随雄性和雌性生殖状态的变化而变化
Mayté Ruiz,Erica Davis,Emília P Martins
Mayté Ruiz
Previous experiments suggest that males spend more time with the more receptive of 2 novel females or the one with the higher fitness potential. However, males often court individual females repeatedly over a season; for example, male lizar...
Selvino R de Kort,Erin R B Eldermire,Emily R A Cramer et al.
Selvino R de Kort et al.
Using the responses of territory owners to playback to infer the territorial function of acoustic signals is common practice. However, difficulties with interpreting the results of such experiments have obscured our understanding of territo...
Female reproductive synchrony predicts skewed paternity across primates [0.03%]
雌性生殖同步可预测灵长类父系繁殖的偏斜程度
Julia Ostner,Charles L Nunn,Oliver Schülke
Julia Ostner
Recent studies have uncovered remarkable variation in paternity within primate groups. To date, however, we lack a general understanding of the factors that drive variation in paternity skew among primate groups and across species. Our stud...