Topographic microclimates drive microhabitat associations at the range margin of a butterfly
Topographic microclimates drive microhabitat associations at the range margin of a butterfly
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地形微气候驱动蝴蝶活动范围边缘的微生境关联
DOI：
10.1111/ecog.00535
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发表时间：
2014
期刊：
影响因子：
5.9
通讯作者：
Lawson C
中科院分区：
文献类型：
--
作者：
Lawson C
个体的栖息地关联是物种分布动态的基础。大尺度的气候梯度可以改变物种地理范围内的栖息地关联，但地形异质性会产生局部小气候，这可能会在更精细的空间尺度上产生栖息地利用的变化。我们研究了热约束蝴蝶种群产卵的微生境选择，在16个不同区域温度和地形微气候的地点，skipperHesperia逗号。利用热小气候模型，我们研究了鸡蛋和温暖的裸露地面微生境之间的关联如何随环境温度而变化，并预测了287个现有的H。commapulsations，调查区域温度和地形小气候对微生境利用的相对影响。在相对凉爽的地点，鸡蛋与裸露的地面联系最紧密，表明气候驱动的微栖息地使用变化。研究地点之间的大部分温度变化可归因于地形小气候，而不是区域温度差异，因此微生境关联的变化主要发生在同一区域内的南北向斜坡之间。预测微生境协会在英国的分布H。commashowed，由于地形产生的巨大温差，微生境使用中的大部分种群间变化发生在5 km网格范围内，较小比例发生在5 km网格之间的区域水平。我们的研究结果显示了地形产生的小气候变化如何在精细空间尺度上改变种群的栖息地关联，这表明小气候驱动的栖息地适宜性变化可以塑造物种的分布动态及其对环境变化的反应。
The habitat associations of individuals underpin the dynamics of species distributions. Broad‐scale gradients in climate can alter habitat associations across species’ geographic ranges, but topographic heterogeneity creates local microclimates which could generate variation in habitat use at finer spatial scales. We examined the selection of microhabitats for egg‐laying by populations of a thermally‐constrained butterfly, the skipperHesperia comma, across 16 sites with different regional temperatures and topographic microclimates. Using models of thermal microclimate, we examined how the association between eggs and warm bare ground microhabitats varied with ambient temperature, and predicted bare ground associations in 287 existingH. commapopulations, to investigate the relative impacts of regional temperatures and topographic microclimates on microhabitat use. Eggs were most strongly associated with bare ground in relatively cool sites, indicating climate‐driven changes in microhabitat use. The majority of temperature variation between study sites was attributable to topographic microclimates rather than regional temperature differences, such that changes in microhabitat associations occurred principally between north‐ and south‐facing slopes within the same region. Predicted microhabitat associations across the UK distribution ofH. commashowed that, due to the large temperature differences generated by topography, most of the between‐population variation in microhabitat use occurs locally within 5 km grid squares, with a smaller proportion occurring at a regional level between 5 km squares. Our findings show how microclimatic variation generated by topography alters the habitat associations of populations at fine spatial scales, suggesting that microclimate‐driven changes in habitat suitability could shape species’ distribution dynamics and their responses to environmental change.
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影响因子：
5.7
作者：
C. Lawson;J. Bennie;C. Thomas;J. Hodgson;R. Wilson
通讯作者：
C. Lawson;J. Bennie;C. Thomas;J. Hodgson;R. Wilson
DOI：
10.1002/joc.1160
发表时间：
2005
期刊：
International Journal of Climatology
影响因子：
--
作者：
M. Perry;D. Hollis
通讯作者：
D. Hollis
DOI：
--
发表时间：
2015-10
期刊：
--
影响因子：
--
作者：
Douglas M. Bates;M. Maechler;Ben Bolker;Steven C. Walker
通讯作者：
Douglas M. Bates;M. Maechler;Ben Bolker;Steven C. Walker
DOI：
--
发表时间：
2011-10
期刊：
--
影响因子：
--
作者：
M. Kéry;M. Schaub
通讯作者：
M. Kéry;M. Schaub
英国银斑船长蝴蝶（Hesperia comma）的生态和衰退状况
影响因子：
5.7
作者：
Jeremy A. Thomas;C. Thomas;D. J. Simcox;R. Clarke
通讯作者：
R. Clarke