Microclimate buffering and thermal tolerance across elevations in a tropical butterfly
Microclimate buffering and thermal tolerance across elevations in a tropical butterfly
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热带蝴蝶跨海拔的微气候缓冲和耐热性
DOI：
10.1101/2019.12.19.882357
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Montejo-Kovacevich G
中科院分区：
文献类型：
--
作者：
Montejo-Kovacevich G
热带森林的小气候变化在影响物种分布及其应对环境变化的能力方面发挥着关键作用，特别是对于变温动物而言。尽管如此，目前可用的气候数据集缺乏来自森林内部的数据，此外，我们对热带变温动物耐热性的了解也很有限。因此，我们研究了Heliconiusa属热带蝴蝶在安第斯山脉范围内一年内所经历的小气候的自然变化。我们发现森林强烈缓冲了林下的温度和湿度，尤其是在温度更为极端的低地。我们的年度记录和宏观气候数据库（WorldClim2）之间存在系统性差异，插值的最低温度较低，最高温度高于预期。然后，我们评估了 10 种野外的 Heliconiusbutterfly 物种的耐热性，发现高海拔种群的耐热性明显低于低海拔种群。然而，当我们饲养广泛的H.与普通花园环境中的高海拔和低海拔相比，不同海拔地区的耐热性差异减小，表明该性状的可塑性。小气候缓冲目前尚未在公开数据集中捕获，但对于实现对热敏感的物种（例如高地 Heliconius）向高地转移可能至关重要。耐热性的可塑性可能会减轻全球变暖对一些广泛分布的变温物种的影响，但需要更多的研究来了解可塑性对种群和物种的长期影响。
Microclimatic variability in tropical forests plays a key role in shaping species distributions and their ability to cope with environmental change, especially for ectotherms. Nonetheless, currently available climatic datasets lack data from the forest interior and, furthermore, our knowledge of thermal tolerance among tropical ectotherms is limited. We therefore studied natural variation in the microclimate experienced by tropical butterflies in the genusHeliconiusacross their Andean range in a single year. We found that the forest strongly buffers temperature and humidity in the understorey, especially in the lowlands, where temperatures are more extreme. There were systematic differences between our yearly records and macroclimate databases (WorldClim2), with lower interpolated minimum temperatures and maximum temperatures higher than expected. We then assessed thermal tolerance of 10Heliconiusbutterfly species in the wild and found that populations at high elevations had significantly lower heat tolerance than those at lower elevations. However, when we reared populations of the widespreadH. eratofrom high and low elevations in a common-garden environment, the difference in heat tolerance across elevations was reduced, indicating plasticity in this trait. Microclimate buffering is not currently captured in publicly available datasets, but could be crucial for enabling upland shifting of species sensitive to heat such as highlandHeliconius. Plasticity in thermal tolerance may alleviate the effects of global warming on some widespread ectotherm species, but more research is needed to understand the long-term consequences of plasticity on populations and species.
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影响因子：
3.3
作者：
C. Storlie;A. Merino‐Viteri;B. Phillips;J. VanDerWal;J. Welbergen;S. Williams
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S. Williams
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影响因子：
0.8
作者：
B. Sheftel;V. D. Yakushov
通讯作者：
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适应气候变化真的限制了利基专家吗？
DOI：
--
发表时间：
2014
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
--
作者：
Belinda van Heerwaarden;C. Sgrò
通讯作者：
C. Sgrò
影响因子：
2.7
作者：
Marc J. Steigenga;K. Fischer
通讯作者：
K. Fischer
厄瓜多尔的森林砍伐、土地改革和石油开发，1964-1994 年
DOI：
10.4236/nr.2013.41004
发表时间：
2013
期刊：
Natural Resources
影响因子：
--
作者：
R. Wasserstrom;D. Southgate
通讯作者：
D. Southgate