ABS 2022
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Effects of Microclimate Change on the Survival Across Life Stages of a Small Ectotherm  
Laura M. Segura Hernández, Eileen Hebets. University of Nebraska-Lincoln, Lincoln, Nebraska, United States

Most of our understanding of climate change comes from projections across large temporal (e.g. annually) and spatial (e.g. regional) scales. However, changes at smaller scales (e.g. microhabitat changes) are more relevant to understand its impacts on the vast majority of species (i.e. small ectotherms). Additionally, most studies focus on a single life stage, while the survival of other life stages might be differently compromised. Many small ectotherms live in secluded spaces (e.g. soil), and it is poorly understood how (i) climate change will alter the abiotic microhabitat conditions, and (ii) future microhabitat conditions can influence survival across life stages. Here, we evaluated the effects of microclimate changes on the survival of Dactylochelifer silvestris (Pseudoscorpiones: Cheliferidae). We recorded daily summer temperatures at their microhabitat, adjusted those temperatures based on future climate predictions, and tested how such conditions affected survival across life stages. We found that future microclimate influences survival on all life stages of D. silvestris, with younger nymphs having enhanced risk of dying, and females being more resilient.