Instruct: Identify the main category of Biorxiv papers based on the titles and abstracts
Query: Factors determining distributions of rainforest Drosophila shift from interspecific competition to high temperature with decreasing elevation Species turnover with elevation is a widespread phenomenon and provides valuable information on why and how ecological communities might reorganize as the climate warms. Tropical mountains typically have pronounced thermal gradients and intense species interactions, providing a testing ground for investigating the relationship between thermal tolerances and biotic interactions as the proximate factors determining species distributions. We investigated thermal tolerances and interspecific competition as causes of species turnover in the nine most abundant species of Drosophila along elevational gradients in the Australian Wet Tropics. Upper thermal limits varied less among species than lower thermal limits; nonetheless, at low elevation sites, these small differences determined the composition of communities through environmental sorting. In contrast, community composition at cool, high elevations was driven by interspecific competition rather than tolerance to low temperatures. These results run counter to common assumptions about the role of abiotic and biotic factors in structuring communities along thermal gradients, and indicate that tropical insects may be vulnerable to future warming wherever their distributions lie along elevational and other temperature gradients.
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The categories of this paper are: behavior
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The categories of this paper are: physiology
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The categories of this paper are: bioinformatics
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The categories of this paper are: plant
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The categories of this paper are: biology
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The categories of this paper are: genetics
28
The categories of this paper are: communication
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The categories of this paper are: pharmacology
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The categories of this paper are: synthetic
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The categories of this paper are: cell
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The categories of this paper are: biochemistry
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The categories of this paper are: education
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The categories of this paper are: scientific
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The categories of this paper are: paleontology
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The categories of this paper are: and
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The categories of this paper are: molecular