Seasonal spatial dynamics of butterfly migration,Ecology Letters

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Seasonal spatial dynamics of butterfly migration
Ecology Letters ( IF 7.6 ) Pub Date : 2021-06-18 , DOI: 10.1111/ele.13787
Shawan Chowdhury ₁ , Myron P Zalucki ₁ , Tatsuya Amano ₁ , Bradley K Woodworth ₁ , Ruben Venegas-Li ₂ , Richard A Fuller ₁

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Understanding the seasonal movements of migratory species underpins ecological studies. Several hundred butterfly species show migratory behaviour, yet the spatial pattern of these migrations is poorly understood. We developed climatic niche models for 405 migratory butterfly species globally to estimate patterns of seasonal movement and the distribution of seasonal habitat suitability. We found strong seasonal variation in habitat suitability for most migratory butterflies with >75% of pixels within their distributions showing seasonal switching in predicted occupancy for 85% of species. The greatest rate of seasonal switching occurred in the tropics. Several species showed extreme range fluctuations between seasons, exceeding 10-fold for 53 species (13%) and more than 100-fold for nine species (2%), suggesting that such species may be at elevated extinction risk. Our results can be used to search for the ecological processes that underpin migration in insects, as well as to design conservation interventions for declining migratory insects.

中文翻译：

蝴蝶迁徙的季节空间动态

了解迁徙物种的季节性运动是生态研究的基础。数百种蝴蝶表现出迁徙行为，但对这些迁徙的空间模式知之甚少。我们为全球 405 种迁徙蝴蝶物种开发了气候生态位模型，以估计季节性运动的模式和季节性栖息地适宜性的分布。我们发现大多数迁徙蝴蝶的栖息地适应性存在强烈的季节性变化，其分布中 > 75% 的像素显示 85% 的物种的预测占用率出现季节性变化。热带地区的季节转换率最高。几个物种在季节之间表现出极大的波动，53 个物种（13%）超过 10 倍，9 个物种（2%）超过 100 倍，表明此类物种可能面临较高的灭绝风险。我们的研究结果可用于寻找支持昆虫迁徙的生态过程，以及设计减少迁徙昆虫的保护干预措施。

更新日期：2021-08-10

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