ArticlePloS one2023
Dehydration alters behavioral thermoregulation and the geography of climatic vulnerability in two Amazonian lizards.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 12 citations in OpenAlex.
- High dietary cation-anion difference as a biological coolant: Mechanisms of enhanced evaporative heat dissipation and comfort in tropical dairy ruminants under natural high ambient temperature.Veterinary world · 2026Review
- Unraveling patterns and drivers of saurophagy in South American lizards.Scientific reports · 2025Article
- A user's guide for understanding reptile and amphibian hydroregulation and climate change impacts.Conservation physiology · 2025Article
- Water Availability and Temperature as Modifiers of Evaporative Water Loss in Tropical Frogs.Integrative and comparative biology · 2024Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
High temperatures and low water availability often strike organisms concomitantly. Observing how organisms behaviorally thermohydroregulate may help us to better understand their climatic vulnerability. This is especially important for tropical forest lizards, species that are purportedly under greater climatic risk. Here, we observed the influence of hydration level on the Voluntary Thermal Maximum (VTmax) in two small Amazonian lizard species: Loxopholis ferreirai (semiaquatic and scansorial) and Loxopholis percarinatum (leaf litter parthenogenetic dweller), accounting for several potential confounding factors (handling, body mass, starting temperature and heating rate). Next, we used two modeling approaches (simple mapping of thermal margins and NicheMapR) to compare the effects of dehydration, decrease in precipitation, ability to burrow, and tree cover availability, on geographic models of climatic vulnerability. We found that VTmax decreased with dehydration, starting temperature, and heating rates in both species. The two modeling approaches showed that dehydration may alter the expected intensity, extent, and duration of perceived thermal risk across the Amazon basin for these forest lizards. Based on our results and previous studies, we identify new evidence needed to better understand thermohydroregulation and to model the geography of climatic risk using the VTmax.
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