Attempts to link physiological thermal tolerance to global species distributions have relied on lethal temperature limits, yet many organisms lose fertility at sublethal temperatures. Here we show that, across 43 Drosophila species, global distributions better match male-sterilizing temperatures than lethal temperatures. This suggests that species distributions may be determined by thermal limits to reproduction, not survival, meaning we may be underestimating the impacts of climate change for many organisms.

中文翻译：

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使雄性绝育的温度比致死温度更符合全球物种分布

将生理耐热性与全球物种分布联系起来的尝试依赖于致命的温度限制，但许多生物体在亚致死温度下会失去生育能力。在这里，我们表明，在 43种果蝇中，全球分布比致死温度更适合雄性绝育温度。这表明物种分布可能是由繁殖的热限制决定的，而不是生存，这意味着我们可能低估了气候变化对许多生物的影响。