合作行为中的性别差异的进化和发展在猫的合作行为中
T H Clutton-Brock1, A F Russell, L L Sharpe
1Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. thcb@hermes.cam.ac.uk
概括
与大多数鸟类不同的是,雌性水猫在他们的出生组中更有帮助. 这种合作行为与雌性在出生组中保持联系,为抚养幼儿提供了直接的好处.
科学领域:
- 行为生态学 行为生态学
- 进化生物学 进化生物学
- 动物行为 动物行为
背景情况:
- 合作繁殖涉及两性助手协助后代的照顾.
- 在大多数鸟类中,雄性比雌性更有助于养育幼鸟.
- 这种性别差异往往归因于父亲身份的不确定性或男性爱情.
研究的目的:
- 研究合作繁殖行为中性别差异的驱动因素.
- 检查哲学家 (留在出生群体) 在塑造合作贡献中的作用.
- 测试直接利益影响合作行为的演变的假设.
主要方法:
- 研究了水 (Suricata suricatta) 的社会结构和合作繁殖.
- 在男性和女性助手之间比较帮助行为和提供率.
- 分析了水母群体内的性别差异.
主要成果:
- 雌性水猫比雄性表现出更高的爱情,在他们的出生组中更频繁地繁殖.
- 雌性水母帮手比雄性对养育幼的贡献更大.
- 女性助手不成比例地提供了比男性幼更多的雌性幼.
结论:
- 合作行为中的性别差异受性别特异性爱情模式的影响.
- 女人从招募新兵到她们的出生群体中获得更大的直接利益,解释了她们的更高贡献.
- 直接的,互惠的利益在专业合作行为的进化中至关重要.
相关概念视频
What is Behavior?
Behaviors are actions that an organism engages in—they can be related to finding food, reproducing, defending against threats, and many other possible actions. Behaviors include activities related to the environment around the animal—such as migration—as well as social interactions within a species or population. Many behaviors involve motor output—that is, muscle movements—while others involve less visible actions, such as learning.
Mate Choice
Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
Inclusive Fitness
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
X-Inactivation
The human X chromosome contains over ten times the number of genes as in the Y chromosome. Since males have only one X chromosome, and females have two, one might expect females to produce twice as many of the proteins, with undesirable results.
Evolutionary Psychology
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
Criticisms of the Evolutionary Perspective
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
Evolutionary psychology provides one explanation for these findings, suggesting...


