Thermal ecology and thermoregulatory behavior of Coleodactylus natalensis (Squamata: Sphaerodactylidae), in a fragment of the Atlantic forest of northeastern, Brazil

Sousa, Pablo; Freire, Eliza María Xavier

doi:10.1590/s1984-46702011000600001

Cited by 8 publications

(4 citation statements)

References 42 publications

(37 reference statements)

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“…Coleodactylus natalensis is known from only one forested area on a coastal dune system ( Capistrano and Freire, 2009 , Figure 1 , locality 12), and is morphologically distinct from sister lineages ( Freire, 1999 ). Some data on thermal physiology exist for the Coleodactylus natalensis lineage ( de Sousa and Freire, 2011 ), though these are not yet sufficient to test for VRM processes.…”

Section: Testing the Vrmmentioning

confidence: 99%

Revisiting the vanishing refuge model of diversification

et al. 2014

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Much of the debate around speciation and historical biogeography has focused on the role of stabilizing selection on the physiological (abiotic) niche, emphasizing how isolation and vicariance, when associated with niche conservatism, may drive tropical speciation. Yet, recent re-emphasis on the ecological dimensions of speciation points to a more prominent role of divergent selection in driving genetic, phenotypic, and niche divergence. The vanishing refuge model (VRM), first described by Vanzolini and Williams (1981), describes a process of diversification through climate-driven habitat fragmentation and exposure to new environments, integrating both vicariance and divergent selection. This model suggests that dynamic climates and peripheral isolates can lead to genetic and functional (i.e., ecological and phenotypic) diversity, resulting in sister taxa that occupy contrasting habitats with abutting distributions. Here, we provide predictions for populations undergoing divergence according to the VRM that encompass habitat dynamics, phylogeography, and phenotypic differentiation across populations. Such integrative analyses can, in principle, differentiate the operation of the VRM from other speciation models. We applied these principles to a lizard species, Coleodactylus meridionalis, which was used to illustrate the model in the original paper. We incorporate data on inferred historic habitat dynamics, phylogeography and thermal physiology to test for divergence between coastal and inland populations in the Atlantic Forest of Brazil. Environmental and genetic analyses are concordant with divergence through the VRM, yet physiological data are not. We emphasize the importance of multidisciplinary approaches to test this and alternative speciation models while seeking to explain the extraordinarily high genetic and phenotypic diversity of tropical biomes.

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Section: Testing the Vrmmentioning

confidence: 99%

Revisiting the vanishing refuge model of diversification

et al. 2014

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“…Like other members of the Sphaerodactylidae family (e.g. Coleodactylus natalensis , De Sousa & Freire 2011) E. europaea may also be a more shade-loving species and a passive thermoregulator that is better adapted to the forest environment than T. mauritanica and H. turcicus .…”

Section: Discussionmentioning

confidence: 99%

High occupancy of European leaf-toed geckoEuleptes europaeain two island stands ofEucalyptus sp.: tree selection, co-occurrence and habitat effect

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Priol

Reynier³

et al. 2023

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The effective conservation of a species requires a thorough knowledge of its ecology. Long considered to live exclusively in rocky habitats, the European leaf-toed gecko (Euleptes europaea) has in fact been observed in vegetated and wooded habitats at several locations throughout its range. The tendency of this species to use these habitats seems to be clearly supported by its prehensile tail characteristic of geckos with arboreal behaviour. To better assess tree occupation by E. europaea and other co-occurring geckos, a site-occupancy survey was conducted in 2022 on the testing site of DGA (French MoD the Procurement Agency) of Levant Island (Hyeres, France). Two stands of Eucalyptus sp. containing 68 trees were selected to monitor. One stand lies in an anthropised context, consisting of scattered woodland and clear ground (stand 1), and the other represents a "natural" forest context with dense ground vegetation (stand 2). The results revealed high occupancy by E. europaea in both stands, with an average occupancy probability of 0.57 (CI 0.40;0.72). The Mediterranean house gecko (Hemidactylus turcicus) and Moorish gecko (Tarentola mauritanica) had an average occupancy probability of 0.28 (CI 0.16;0.44) and 0.07 (CI 0.03;0.16) respectively. In stand 2, E. europaea was the only gecko species found, suggesting that it is better adapted to this type of forest habitat, which may represent a refuge for this species. In view of these results, the ecology of this species should be reconsidered and the research broadened by systematically including vegetated and forest habitats.

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“…Thus, specimens sharing the same microenvironment have similar body temperature when active (Vitt and Ávila-Pires 1988). The seasonal variation found in cloacal temperatures can be influenced by habitat type (Sousa and Freire 2011). Because temperatures in the Caatinga Domain are lower during the rainy season, it is expected that body temperatures change seasonally (Leal et al 2003).…”

Section: Microhabitat Use and Thermal Ecologymentioning

confidence: 99%

Autecology of the lizard Colobosauroides cearensis (Squamata: Gymnophthalmidae) from Brazilian semiarid Caatinga

2019

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Autecology of the lizard Colobosauroides cearensis (Squamata: Gymnophthalmidae) from Brazilian semiarid Caatinga. Colobosauroides cearensis is a diurnal lizard with a relictual distribution associated with forested habitats in the Brazilian Caatinga Domain. Knowledge of the natural history of this secretive lizard is scarce. Herein, the diet, reproduction, sexual dimorphism, microhabitat use, and thermal ecology of C. cearensis are described based on feldwork in 2015–2017 in the state of Ceará, Brazil. The diet of the lizards is composed exclusively of arthropods, with Formicidae being the most important prey category. Numerical and volumetric niche breadths are 5.52 and 9.2 respectively, and trophic niche overlap between females and males is 0.3. Males are distinguished from females by the larger size of the males and the presence of femoral pores. Colobosauroides cearensis is cryptozoic, inhabiting the leaf litter and having no direct contact with the soil or solar radiation. The average body temperature of the lizards is 30.4 ± 3.3°C, which is positively correlated with the air temperature. Gravid females with fxed clutch size of two eggs are found in early rainy season. Oviposition occurs between April and May (when the highest number of juveniles are observed). Sexual maturity occurs early in males and testicular volume is signifcantly correlated with body size.

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Thermal ecology and thermoregulatory behavior of Coleodactylus natalensis (Squamata: Sphaerodactylidae), in a fragment of the Atlantic forest of northeastern, Brazil

Cited by 8 publications

References 42 publications

Revisiting the vanishing refuge model of diversification

Revisiting the vanishing refuge model of diversification

High occupancy of European leaf-toed geckoEuleptes europaeain two island stands ofEucalyptus sp.: tree selection, co-occurrence and habitat effect

Autecology of the lizard Colobosauroides cearensis (Squamata: Gymnophthalmidae) from Brazilian semiarid Caatinga

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