威斯康星州繁殖鸟类的极地变化
Drake T Stallworth1, Nicholas M Anich2, Benjamin Zuckerberg1
1University of Wisconsin-Madison Madison Wisconsin USA.
Ecology and evolution
|July 31, 2025
概括
气候变化正在导致鸟类物种向北移动它们的范围. 对威斯康星州进行分析.
科学领域:
- 生态与保护生物学 生态与保护生物学
- 气候变化生物学 气候变化生物学
- 鸟类学 鸟类学是一门学科.
背景情况:
- 全球气候变化正在推动全球物种地理分布的重大变化.
- 由于它们的高度流动性,鸟类是气候驱动范围变化的关键指标.
- 繁殖鸟类地图集为监测这些范围动态提供了必要的长期数据.
研究的目的:
- 分析威斯康星州繁殖鸟类范围的变化,使用两个广泛的繁殖鸟类图谱数据集.
- 为了记录鸟类种类的范围大小,平均度和范围边界位置的变化.
- 评估气候变化对该州鸟类分布模式的影响.
主要方法:
- 威斯康星州繁殖鸟类图谱数据的比较:1995年2000年和2015年2019年.
- 对物种范围大小,平均度和度范围边界变化的分析.
- 对在威斯康星州北部和南部范围的物种的范围转移的统计评估.
主要成果:
- 南方的鸟类种类与北部的范围限制展现了极向扩张和范围边界的移动.
- 北方的物种没有显示出极向范围边界的显著变化,但在平均度上显示出向北的运动.
- 几种北极物种在它们的总体分布中显示出向北的转移,尽管它们的群体水平边界稳定.
结论:
- 观测到鸟类范围的极端转移提供了现代气候变化影响的明确指标.
- 南方和北方物种之间明显存在不同的范围动态 (边界转移与平均度转移).
- 通过繁殖鸟类图谱的持续监测对于了解生态系统对气候变化的反应至关重要.
相关概念视频
Conservation of Declining Populations
9.7K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.7K
Migration
8.1K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.1K
Hybrid Zones
20.2K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
20.2K
Genetics of Speciation
19.5K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.5K
Range
12.0K
The range is one of the measures of variation. It can be defined as the difference between a dataset's highest and lowest values. For example, in the study of seven 16-ounce soda cans, the filled volume of soda was measured, thus producing the following amount (in ounces) of soda:
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
12.0K
Conservation of Small Populations
13.6K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.6K


