Novel method to investigate thermal exchange rates in small, terrestrial ectotherms: A proof-of-concept on the gecko Tarentola mauritanica DOI Creative Commons
Gabriel Mochales‐Riaño, Frederico M. Barroso, Valéria Marques

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(12), P. e0316283 - e0316283

Published: Dec. 26, 2024

Thermoregulating ectotherms may resort to different external heat sources modulate their body temperature through an array of behavioural and physiological adaptations which exchange with the environment its distribution across animal’s body. Even small-bodied animals are capable fine control over such rates subsequent re-allocation Such thermal exchanges usually happen two non-mutually exclusive modes: heliothermy (radiant gain from sun) or thigmothermy (heat gained lost via conduction). Classically, study these phenomena has relied on invasive methodologies often disregard effect stress, behaviour regional heterothermy patterns animal. This proposes a novel experimental methodology, capitalising thermography, provide alternative method less invasively obtain reliable temperatures thermoregulating ectotherms, while allowing heating mode be considered when quantifying rates. methodology was tested in gecko Tarentola mauritanica , where twenty males were allowed up cool down under set-up isolates heliothermic thigmothermic processes, being recorded camera. The revealed differences cooling several parts per treatment suggesting that complex even small ectotherms. Ultimately, described provides opportunity revisit classical questions more flexible approach, enabling processes disentangled. also better integrates physiology obtaining higher temporal spatial resolution ectotherm.

Language: Английский

The micro-niche explains allotopy and syntopy in South American Liolaemus (Iguania: Liolaemidae) lizards DOI Creative Commons
Andrés Sebastián Quinteros, Sabrina N. Portelli

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e18979 - e18979

Published: Feb. 17, 2025

Species distribution models have been established as essential tools for projecting the effects of changing environmental conditions on species across space and time. The microclimatic niche denotes within a habitat at small scale or localized area. These direct influence several ecological traits these determine which organisms can survive and/or reproduce. This study examines microclimate data from four sites located in Northwestern Salta Province, Argentina. Four South American Liolaemus lizard were found to inhabit allotopy syntopy, with irregularis inhabiting all sites. is sole Site 1; L. inhabits 2 syntopy multicolor; 3 yanalcu; 4 albiceps. To characterize sites, model was generated an interval 10 AM 6 PM every day, years. exhibited some differences combination climatic soil characteristics. 1 characterized by low relative humidity, high temperature, wind speed, Cambisol type. had moderate Andosol Regosol Temperature, type, diet influenced presence each site. It evident that microenvironmental profoundly biological interactions.

Language: Английский

Citations

0
Altitude correlates with dorsal −but not ventral− scale number and dimension in a lacertid lizard DOI
Marco Sannolo, Raquel Ponti

Zoology, Journal Year: 2025, Volume and Issue: 169, P. 126249 - 126249

Published: Feb. 19, 2025

Language: Английский

Citations

0
Surviving on a Rock, but for How Long? Deviations in the Thermoregulatory Strategy of the Milos Wall Lizard (Podarcis milensis) DOI Creative Commons
Panayiotis Pafilis,

Chloe Adamopoulou,

Antonis Antonopoulos

et al.

Animals, Journal Year: 2024, Volume and Issue: 14(21), P. 3087 - 3087

Published: Oct. 26, 2024

Reptiles are unable to generate metabolic heat and regulate body temperature behaviorally depending on environmental conditions. The thermal quality of their habitat is therefore pivotal importance for survival. Lizards render themselves as ideal ectothermic models, biology has been extensively studied. In this work, we focused the thermoregulatory performance endemic Milos wall lizard (Podarcis milensis) (Milos Archipelago, Aegean Sea, Greece). Applying same standard methodology, estimated effectiveness thermoregulation (E) taking into account three main parameters: (Tb, active animals in field), (Te, that would achieve field if passively conform environment) preferred temperatures (Tpref, an animal achieves a laboratory gradient). Here, compare profile two remote rocky islet populations, Falconera Velopoula, with Island population. We collected Tb values from lizards well Te specially designed copper which were appropriately placed so cover all possible microhabitats. then transported where assessed Tprefs. Velopoula populations showed high (EFalconera = 0.97, EVelopoula 0.95, EMilos 0.89). However, when used alternative evaluation strategy, E outlined much more effective islets: de-dbFalconera 6.97, de-dbVelopoula 11.54, de-dbMilos 4.27. adverse conditions islets outline demanding low dictates thermoregulation. trend increasing depicts even harsher environment years come. Could have already achieved highest cannot escape isolated they dwell cope these new conditions? This kind questions conservation will be called upon respond.

Language: Английский

Citations

1
Physiological phenotypes differ among color morphs in introduced common wall lizards (Podarcis muralis) DOI Creative Commons
Ali Amer, Sierra Spears, Princeton L. Vaughn

et al.

Integrative Zoology, Journal Year: 2023, Volume and Issue: 19(3), P. 505 - 523

Published: Oct. 26, 2023

Abstract Many species exhibit color polymorphisms which have distinct physiological and behavioral characteristics. However, the consistency of morph trait covariation patterns across species, time, ecological contexts remains unclear. This is especially relevant in context invasion biology urban adaptation. Specifically, traits pertaining to energy maintenance are crucial fitness, given their immediate ties individual reproduction, growth, population establishment. We investigated Podarcis muralis , a versatile polymorphic that thrives environments (including invasive populations Ohio, USA). measured five (plasma corticosterone triglycerides, hematocrit, body condition, field temperature), compose an integrated multivariate phenotype. then tested variation among co‐occurring morphs establishment environment. found describing status strategy shifted active season morph‐dependent manner—the white yellow exhibited clearly different phenotypes, characterized primarily by differences plasma corticosterone. suggests strategies regulation, flexibility The white‐yellow intermediate phenotype, suggesting intermediary strategy. Orange also but low prevalence this our study precludes clear interpretation. Our work provides insight into how stable exist axes phenotype may aid within novel environments.

Language: Английский

Citations

3
Prime Basking Sites and Communal Basking in the Lizard, Lacerta bilineata; High Risk for Juveniles? DOI Creative Commons

Roger Meek,

Luca Luiselli

Diversity, Journal Year: 2024, Volume and Issue: 16(12), P. 728 - 728

Published: Nov. 27, 2024

Sunlight and the heat it provides are important ecological resources for reptiles especially those species living in temperate zones that bask extensively to maximize uptake. Sun basking has both benefits costs reptiles, giving energy drive physiology but open patches increases risk of predation due higher visibility. Prime sites believed increase include, addition sunlit areas, facilitate detection predators prey escape nearby refuges. However, if such limited, inter intra-specific interference may occur this kind competition impact on a reptile’s ability access prime sites, as consequence, its capacity thermoregulate optimum body temperatures. This be juveniles, whom rapid growth is key factor survivorship. We studied communal interaction events at European green lizard, Lacerta bilineata, hedgerow western France. compared behaviour adults juveniles with sympatric adult wall lizards Podarcis muralis using non-invasive photographic-mark-recapture. Adult L. bilineata were more evenly distributed across sights significant differences only detected between males juveniles. Juvenile abandoned approach females aggressively removed by male bilineata. found inter-specific juvenile P. muralis. Communal was observed female not or proportionally greater frequency

Language: Английский

Citations

0
Novel method to investigate thermal exchange rates in small, terrestrial ectotherms: A proof-of-concept on the gecko Tarentola mauritanica DOI Creative Commons
Gabriel Mochales‐Riaño, Frederico M. Barroso, Valéria Marques

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(12), P. e0316283 - e0316283

Published: Dec. 26, 2024

Thermoregulating ectotherms may resort to different external heat sources modulate their body temperature through an array of behavioural and physiological adaptations which exchange with the environment its distribution across animal’s body. Even small-bodied animals are capable fine control over such rates subsequent re-allocation Such thermal exchanges usually happen two non-mutually exclusive modes: heliothermy (radiant gain from sun) or thigmothermy (heat gained lost via conduction). Classically, study these phenomena has relied on invasive methodologies often disregard effect stress, behaviour regional heterothermy patterns animal. This proposes a novel experimental methodology, capitalising thermography, provide alternative method less invasively obtain reliable temperatures thermoregulating ectotherms, while allowing heating mode be considered when quantifying rates. methodology was tested in gecko Tarentola mauritanica , where twenty males were allowed up cool down under set-up isolates heliothermic thigmothermic processes, being recorded camera. The revealed differences cooling several parts per treatment suggesting that complex even small ectotherms. Ultimately, described provides opportunity revisit classical questions more flexible approach, enabling processes disentangled. also better integrates physiology obtaining higher temporal spatial resolution ectotherm.

Language: Английский

Citations

0