城市社会经济变化影响了热带相互作用的生态和演变
Ella Martin1,2,3, Samer El-Galmady2, Marc T J Johnson2,3
1Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada.
Ecology letters
|March 20, 2024
概括
城市社会经济地位影响生态相互作用. 收入较高的地区看到更多的鸟类掠夺金胆,偏爱较小的胆,而收入较低的地区增加了黄蜂和甲虫的攻击.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 城市生态城市生态学
背景情况:
- 城市化是一个日益增长的人为力量,影响生态和进化过程.
- 人类在城市中的社会模式可以改变生态进化的动态,但这还没有得到充分的研究.
研究的目的:
- 调查城市社会经济变化与热带相互作用之间的关系.
- 确定猎物表型上的自然选择是如何被社会经济因素改变的.
主要方法:
- 在84个不同社会经济水平的城市地区采集金杆胆 (Eurosta solidaginis) 胆样本.
- 自然敌人 (鸟类,甲虫,寄生虫黄蜂) 的掠食/寄生频率的量化.
- 评估每种敌人类型对飞所施加的自然选择.
主要成果:
- 在高收入社区,鸟类对胆的掠夺性更高,增加了对较小胆的选择.
- 黄蜂和甲虫攻击率在低收入社区增加.
- 黄蜂和甲虫的自然选择的强度在社会经济梯度之间没有显著差异.
结论:
- 城市的社会经济变化对生态和食用相互作用的演变产生了重大,意想不到的后果.
- 人类的社会经济模式可以改变捕食者-猎物动态和城市生态系统中的自然选择.
相关概念视频
Ecological Niches
23.6K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.6K
The Evidence for Evolution
42.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.7K
Criticisms of the Evolutionary Perspective
99
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...
99
Predator-Prey Interactions
16.2K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.2K
Ecological Disturbance
17.1K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
17.1K
Threats to Biodiversity
22.3K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.3K


