Effects of climate change on altitudinal distribution, trophic interactions and genetic diversity of butterflies in low-mountain regions.

气候变化对低山地区蝴蝶海拔分布、营养相互作用及遗传多样性的影响。

• 批准号: 68994124
• 负责人: Professor Dr. Ingolf Steffan-Dewenter
• 金额: --
• 依托单位: Lehrstuhl für Tierökologie und Tropenbiologie (Zoologie III)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/68994124?language=en
• 关键词: Effects; climate; change; altitudinal; distribution

Climate change is considered as a major threat to biodiversity. In consequence of rising temperatures, altitudinal and latitudinal shifts in distributions and abundances of plant and animal species have been observed. However, effects of climate change on multitrophic interactions and genetic diversity of insect populations have been rarely studied. In this project we will investigate the potential impact of climate change on butterflies by (1) comparing current and historical distribution data, (2) performing field experiments, and (3) analysing population genetics along an altitudinal gradient. The additional quantification of land use change provides insights into the relative importance of both factors. In a low-mountain region in Bavaria, Germany (Fichtelgebirge), current occurrences of butterfly species will be compared with detailed historical occurrence data 50 to 60 years ago. To analyse temporal and geographical synchronization of butterfly hosts and their parasitoids and local adaptations of butterflies at different altitudes a reciprocal transplant experiment will be performed. For a selected butterfly species genetic diversity will be assessed along an altitudinal gradient and will be compared with genetic diversity of archived museum individuals.

气候变化被认为是对生物多样性的主要威胁。由于气温上升，植物和动物物种的分布和丰度出现了海拔和纬度的变化。然而，气候变化对昆虫种群的多营养相互作用和遗传多样性的影响却鲜有研究。在这个项目中，我们将调查气候变化对蝴蝶的潜在影响（1）比较当前和历史的分布数据，（2）进行实地实验，（3）分析种群遗传学沿着海拔梯度。土地利用变化的额外量化提供了对这两个因素的相对重要性的见解。在德国巴伐利亚州的一个低山区（Fichtelgebirge），蝴蝶物种的当前出现将与50至60年前的详细历史发生数据进行比较。为了分析蝴蝶宿主及其寄生蜂的时间和地理同步性以及蝴蝶在不同海拔高度的当地适应性，将进行相互移植实验。对于一个选定的蝴蝶物种的遗传多样性将评估沿着海拔梯度，并将与博物馆存档的个体的遗传多样性进行比较。