冬季色彩多态识别全球热点,以应对气候变化
L Scott Mills1,2, Eugenia V Bragina2, Alexander V Kumar2,3
1Wildlife Biology Program and Office of the Vice President for Research and Creative Scholarship, University of Montana, Missoula, MT 59812, USA. scott.mills@umontana.edu.
概括
进化救援是生物多样性的关键. 脊椎动物的季节性毛皮颜色变化显示了临床梯度,确定了适应和保护的关键区域.
科学领域:
- 生态学
- 进化生物学
- 保护科学
背景情况:
- 气候变化威胁着生物多样性,需要通过适应性特征进行进化救援.
- 很少有特征与气候变化选择直接相关,阻碍了保护整合.
- 脊椎动物的季节性毛皮颜色变色 (例如,棕色到白色) 是一种潜在的适应性特征.
研究的目的:
- 通过人类气候变化直接选择来识别脊椎动物的特征.
- 在脊椎动物物种之间调查冬季外套颜色的临床变化.
- 在气候变化中确定进化救援的热点.
主要方法:
- 分析了8种脊椎动物冬季外套颜色的2713个地理参考样本.
- 在冬季外套颜色中映射出临床梯度 (棕色与白色的形态).
- 在多态区域中评估形态的同时发生.
主要成果:
- 在冬季外套颜色中确定环境驱动的临床梯度.
- 有记录的多态区域, 棕色和白色的形态共存.
- 发现这些区域在当前的保护区网络中代表性不足.
结论:
- 季节性外套颜色是气候变化影响的关键特征.
- 多态区域代表了进化救援的关键区域.
- 为了有效维护生物多样性, 保护战略必须纳入这些进化热点.
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