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Higher temperature variability in deforested mountain regions impacts the competitive advantage of nocturnal species

Citation

Shen, Sheng-Feng et al. (2022), Higher temperature variability in deforested mountain regions impacts the competitive advantage of nocturnal species, Dryad, Dataset, https://doi.org/10.5061/dryad.1rn8pk0xv

Abstract

Deforestation is a primary cause of biodiversity loss. However, we know little about its effects on global patterns of daily microclimate variation, which can differentially impact species with different daily activity patterns. Using a recently developed microclimate model, we show that deforestation causes an increase in the diurnal temperature range (DTR) in lowland habitats at low latitudes and the mountains at high latitudes. Furthermore, we investigate competitive interactions between nocturnal burying beetles and all-day active blowfly maggots in forested and deforested habitats in Taiwan. We show that deforestation leads to increased DTR at higher elevations, which enhances the competitiveness of blowfly maggots during the day and leads to a higher failure rate of carcass burial by the nocturnal beetles. Thus, deforestation-induced temperature variability not only modulates exploitative competition between species with different daily activity patterns but also likely exacerbates the negative impacts of climate change on nocturnal organisms.

Funding

Academia Sinica, Award: AS-SS-106-05

Minister of Science and Technology of Taiwan, Award: 100-2621-B-001-004-MY3

Minister of Science and Technology of Taiwan, Award: 104-2311-B-001-028-MY3

Minister of Science and Technology of Taiwan, Award: 108-2314-B-001-009-MY3

National Science Foundation, Award: IOS-1656098