合作中性别差异的演变可以通过与分散的权衡来解释
Pablo Capilla-Lasheras1,2,3, Nina Bircher4, Antony M Brown1
1Centre for Ecology and Conservation, University of Exeter, Penryn, United Kingdom.
PLoS biology
|October 24, 2024
概括
合作中的性别差异是通过分散权衡来解释的,而不仅仅是爱国主义. 男性,更分散的性别,更多的前景和合作较少,支持这种分散的权衡假设在织者.
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:
- 了解合作中性别差异的演变是行为生态学的一个关键挑战.
- 菲洛帕特里假设表明,由于出生育种的直接健身益处,在更富爱情的性别中有更高的合作.
- 分散权衡假设提出,由于与分散制剂的权衡,更分散的性别的合作减少.
研究的目的:
- 为了测试Philopatry和Dispersal的权衡假设,在合作繁殖白眉松鼠编织者 (Plocepasser mahali).
- 调查在家庭群体内的合作护理中观察到的性别差异的根本原因.
主要方法:
- 利用一种新的高分辨率自动化无线电追踪方法来监测鸟类的移动.
- 在男性和女性中量化合作照顾贡献和与分散相关的活动 (领土外探险).
- 检查了出生组内分散行为和合作护理之间的关系.
主要成果:
- 男性被确定为更分散的性别,这是典型的鸟类模式的逆转.
- 与男性相比,女性在出生组内表现出明显更高的合作护理水平.
- 男性的境外勘探率高于女性,这表明与生育合作的权衡.
结论:
- 研究结果支持分散权衡假说,表明合作和分散之间的权衡可以解释合作行为的性别差异.
- 菲洛帕特里假说没有得到充分支持,因为女性的更高合作率与更高的出生繁殖概率无关.
- 合作中的性别差异可以在很大程度上通过分散策略和合作投资之间的相互作用来解释,无论直接的健康益处如何.
相关概念视频
01:23Criticisms of the Evolutionary Perspective
91
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...
91
01:06Natural Selection and Mating Preferences
92
The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
Females, due to their biological roles in conception, pregnancy, and nursing,...
Females, due to their biological roles in conception, pregnancy, and nursing,...
92
01:20Mate Choice
8.0K
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.
8.0K
01:20Evolutionary Psychology
251
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...
251
02:16Genetics of Speciation
19.1K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.1K
00:57Inclusive Fitness
35.9K
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.
35.9K