A new collared lizard (Tropidurus, Tropiduridae) endemic to the western Bolivian Andes and its implications for seasonally dry tropical forests

Carvalho, André L. G.; Céspedes, Ricardo; Rivas, Luis Rolando; Rodrigues, Miguel Tréfaut

doi:10.5962/bhl.title.156724

Cited by 2 publications

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“…For all tests, we used a subset of the Tropidurinae phylogeny proposed by Carvalho et al (2020). We followed the protocol described in Carvalho et al (2018) to add a GenBank sequence of Tropidurus aff. etheridgei to our tree.…”

Section: Methodsmentioning

confidence: 99%

Environmental temperature predicts resting metabolic rates in tropidurinae lizards

et al. 2022

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Interspecific variation in metabolic rates may be associated with climate, habitat structure, and resource availability. Despite a strong link between ecology and physiology, there is a dearth in the understanding of how the costs of body maintenance change during ecological transitions. We focused on an ecologically diverse group of neotropical lizards (Tropidurinae) to investigate whether and how resting metabolic rate (RMR) evolved under divergent micro‐ and macrohabitat conditions. Using a phylogenetic framework, we tested whether species from hot and dry habitats had lower RMRs in relation to those from cooler and mesic habitats, and investigated whether microhabitat usage had an effect over body mass‐adjusted RMRs. Our results suggest that RMRs are not phylogenetically structured in Tropidurinae. We found no correlation between metabolism, precipitation, and microhabitat usage. Species from warmer habitats had lower RMR compared to those from cooler habitats, supporting a mechanism of negative compensation in metabolic responses to temperature. Ectotherms from warmer habitats can limit energetic demand and expenditure through reduced RMR, whereas those from cooler habitats may sustain activity despite thermal constraints via increased RMR. Our work highlights the role of temperature in shaping metabolic responses in lizards, giving additional support to the notion that physiology and ecological contexts are intertwined.

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Section: Methodsmentioning

confidence: 99%

Environmental temperature predicts resting metabolic rates in tropidurinae lizards

et al. 2022

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“…Feiner, 2016;Sanger et al, 2012) due to the following features: (1) large clutch sizes (3-10 eggs; Arruda et al, 2019;Delssin et al, 2019); (2) widespread distribution in South America (Carvalho, 2013;Frost et al, 2001;Rodrigues, 1987); (3) strong territoriality that enables tracking the same individuals for several weeks (Kohlsdorf et al, 2006;Rodrigues & Kohlsdorf, 2019); (4) social structure in harems, with several (gravid) females associated to the same territory (Melo et al, 2017); (5) easy capture by lasso and relatively simple maintenance in the lab (Delssin et al, 2019;Py-Daniel et al, 2017;Van Sluys, 1993). Finally, phylogenetic relationships have been addressed intensely in this family (Carvalho et al, 2016;Carvalho et al, 2018;Carvalho et al, 2020;Carvalho, 2016;Domingos et al, 2017;Matos et al, 2016;Teixeira et al, 2016;Werneck et al, 2015), which allow evolutionary inferences from comparative studies.…”

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confidence: 99%

A guide to incubate eggs of Tropidurus lizards under laboratory conditions

et al. 2021

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Studies in Evo-Devo benefit from the use of a variety of organisms, as comparative approaches provide a better understanding of Biodiversity and Evolution. Standardized protocols to incubate eggs and manipulate embryo development enable postulation of additional species as suitable biological systems for research in the field.In the past decades, vertebrate lineages such as Squamata (lizards, snakes, and amphisbaenians) emerged as crucial study systems for addressing topics as diverse as phenotypic evolution and climate change. However, protocols for maintaining gravid females and incubating eggs in the lab under experimental conditions are available to only a few squamate species. This resource article presents a simple incubation guide that standardizes conditions to maintain embryos of Tropidurus catalanensis (Squamata: Tropiduridae) under different experimental conditions, manipulating relevant environmental factors like temperature and humidity. We identified associated effects relating the egg incubation condition to developmental stage, incubation time, hatching success, and resulting morphotypes. Temperature and humidity play a key role in development and require attention when establishing the experimental design. Current literature comprises information for Tropidurus lizards that ponders how general in Squamata are the ecomorphs originally described for Anolis. Studies evaluating phenotypic effects of developmental environments suggest plasticity in some of the traits that characterize the ecomorphological associations described for this family. We expect that this incubation guide encourages future studies using Tropidurus lizards to address Evo-Devo questions.

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A new collared lizard (Tropidurus, Tropiduridae) endemic to the western Bolivian Andes and its implications for seasonally dry tropical forests

Cited by 2 publications

References 0 publications

Environmental temperature predicts resting metabolic rates in tropidurinae lizards

Environmental temperature predicts resting metabolic rates in tropidurinae lizards

A guide to incubate eggs of Tropidurus lizards under laboratory conditions

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