Evolutionary change in Cepaea nemoralis shell colour over 43 years
Evolutionary change in Cepaea nemoralis shell colour over 43 years
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43 年来 Cepaea nemoralis 外壳颜色的进化变化
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Schilthuizen
中科院分区：
文献类型：
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作者：
M. Ożgo;M. Schilthuizen
我们比较了1967年至2010年期间荷兰格罗宁根省7 × 8 km区域内16个地点的陆地蜗牛Cepaea nemoralis的壳色形式。为此，我们使用了自然历史收藏中的储存样本，并对确切的收集地点进行了重新采样。我们发现，几乎所有的人口经历了相当大的进化变化，在各种表型，可能是由于人口瓶颈和栖息地的变化后，在该地区反复土地整理计划。更重要的是，我们发现黄色有效的unbanded蜗牛在棕色蜗牛的牺牲一致增加。这是对气候变化的预期适应之一（荷兰的这一地区在两个采样年的时间段内变暖了1.5-2.0 °C），这是C的第一个明确证明。[咒语]
We compared shell colour forms in the land snail Cepaea nemoralis at 16 sites in a 7 × 8 km section of the Province of Groningen, the Netherlands, between 1967 and 2010. To do so, we used stored samples in a natural history collection and resampled the exact collection localities. We found that almost all populations had experienced considerable evolutionary change in various phenotypes, possibly due to population bottlenecks and habitat change after repeated land consolidation schemes in the area. More importantly, we found a consistent increase in yellow effectively unbanded snails at the expense of brown snails. This is one of the expected adaptations to climate change (this area of the Netherlands has warmed by 1.5–2.0 °C over the time period spanned by the two sampling years), and the first clear demonstration of this in C. nemoralis.