Self discrimination in meadow voles, Microtus pennsylvanicus [0.03%]
草原田鼠(Microtus pennsylvanicus)的自我识别研究
Michael H Ferkin,Andrew A Pierce,Stan Franklin
Michael H Ferkin
Particular features of the signaling characteristics of the scent marks of temperate-zone, seasonally breeding mammals may reflect differences in their reproductive state and, hence, be variable. Consequently, an individual's perception of ...
Effect of mating activity and dominance rank on male masturbation among free-ranging male rhesus macaques [0.03%]
交配活动和主导地位对野生雄性恒河猴自慰行为的影响研究
Constance Dubuc,Sean P Coyne,Dario Maestripieri
Constance Dubuc
The adaptive function of male masturbation is still poorly understood, despite its high prevalence in humans and other animals. In non-human primates, male masturbation is most frequent among anthropoid monkeys and apes living in multimale-...
A Quantitative Index of Sociality and Its Application to Group-Living Spiders and Other Social Organisms [0.03%]
一种社会性的定量指标及其在群居蜘蛛和其他社会生物中的应用
Leticia Avilés,Gyan Harwood,W Koenig
Leticia Avilés
Species are often classified in discrete categories, such as solitary, subsocial, social and eusocial based on broad qualitative features of their social systems. Often, however, species fall between categories or species within a category ...
LEARNING TO CHOOSE AMONG SOCIAL FORAGING STRATEGIES IN ADULT HOUSE SPARROWS (Passer domesticus) [0.03%]
关于家雀（Passer domesticus）在成人期选择群觅食策略的学习行为研究
Amos Belmaker,Uzi Motro,Marcus W Feldman et al.
Amos Belmaker et al.
Social foragers may be regarded as being engaged in a producer-scrounger game in which they can search for food independently or join others who have discovered food. Research on the producer-scrounger game has focused mainly on the differe...
Re-feeding food-deprived male meadow voles affects the sperm allocation of their rival males [0.03%]
对雌性黄褐林鼠禁食再喂食会影响其配偶的竞品雄性的精子分配策略
Ashlee A Vaughn,Javier Delbarco-Trillo,Michael H Ferkin
Ashlee A Vaughn
An individual's nutritional status affects the manner in which same- and opposite-sex conspecifics respond to that individual, which may affect their fitness. Male meadow voles, Microtus pennsylvanicus, increase their sperm allocation if th...
Determinants of Pair-Living in Red-Tailed Sportive Lemurs (Lepilemur ruficaudatus) [0.03%]
红尾鼠狐猴(Lepilemur ruficaudatus)结对生活的决定因素
Roland Hilgartner,Claudia Fichtel,Peter M Kappeler et al.
Roland Hilgartner et al.
Pair-living and a monogamous mating strategy are rare and theoretically unexpected among mammals. Nevertheless, about 10% of primate species exhibit such a social system, which is difficult to explain in the absence of paternal care. In thi...
Asymmetric forceps increase fighting success among males of similar size in the maritime earwig [0.03%]
不对称夹持器可以增加形态相似的耳翅目的雄性的战斗胜利次数
Nicole E Munoz,Andrew G Zink
Nicole E Munoz
Extreme asymmetric morphologies are hypothesized to serve an adaptive function that counteracts sexual selection for symmetry. However direct tests of function for asymmetries are lacking, particularly in the context of animal weapons. The ...
Russell A Ligon,Lynn Siefferman,Geoffrey E Hill
Russell A Ligon
Introduced species can exert outsized impacts on native biota through both direct (predation) and indirect (competition) effects. Ants frequently become established in new areas after being transported by humans across traditional biologica...
Baby Schema in Infant Faces Induces Cuteness Perception and Motivation for Caretaking in Adults [0.03%]
婴儿脸部的宝宝图式诱发成人对可爱的感知及照顾动机
Melanie L Glocker,Daniel D Langleben,Kosha Ruparel et al.
Melanie L Glocker et al.
Ethologist Konrad Lorenz proposed that baby schema ('Kindchenschema') is a set of infantile physical features such as the large head, round face and big eyes that is perceived as cute and motivates caretaking behavior in other individuals, ...
Duet function in the yellow-naped amazon, Amazona auropalliata: evidence from playbacks of duets and solos [0.03%]
黄冠亚马逊鹦鹉求偶鸣唱的二重唱功能：二重唱及独唱播放实验结果分析
Christine R Dahlin,Timothy F Wright
Christine R Dahlin
The question of why animals participate in duets is an intriguing one, as many such displays appear to be more costly to produce than individual signals. Mated pairs of yellow-naped amazons, Amazona auropalliata, give duets on their nesting...