Thermal benefitsofartificialsheltersinsnakes:Aradiotelemetricstudy of twosympatriccolubrids

Thermal benefitsofartificialsheltersinsnakes:Aradiotelemetricstudy of twosympatriccolubrids

1. Intemperateclimates,reptilesfaceconstrainingthermalconditions,andthustradeoffpredator avoidanceagainstthermoregulatoryrequirements. 2. Selectionofhighthermalqualityshelterscanentailsubstantialfitnessgainsbyenablingthe selectionofoptimalbodytemperaturesforphysiologicalperformance(e.g.,highbodytemp...

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Veröffentlicht in:Journal of thermal biology 2010, Vol.35, p.324-331
Hauptverfasser: Lelièvre, Hervé, Blouin-Demers, Gabriel, Bonnet, Xavier, Lourdais, Olivier
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container_end_page 331
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container_start_page 324
container_title Journal of thermal biology
container_volume 35
creator Lelièvre, Hervé
Blouin-Demers, Gabriel
Bonnet, Xavier
Lourdais, Olivier
description 1. Intemperateclimates,reptilesfaceconstrainingthermalconditions,andthustradeoffpredator avoidanceagainstthermoregulatoryrequirements. 2. Selectionofhighthermalqualityshelterscanentailsubstantialfitnessgainsbyenablingthe selectionofoptimalbodytemperaturesforphysiologicalperformance(e.g.,highbodytemperature for digestion),whilstminimizingpredationrisk. 3. Westudiedtwospeciesofsympatriccolubridsnakes(Hierophisviridiflavus and Zamenis longissimus) with contrastedthermalpreferencesinaforestedarea,offeringadiversityofnaturaland anthropogenicshelters.Individualsweremonitoredusingradiotelemetry.Physicalmodelswere used toassessoperativeenvironmentaltemperature. 4. Theexploitationofparticularartificialshelters,bothduringdiurnalandnocturnalphases,entailed importantthermalbenefitstothesnakes. 5. Aspredicted,themostthermophilicspecies, H. viridiflavus, usedhotsheltersmoreoftenthanthe less thermophilicspecies Z. longissimus
doi_str_mv 10.1016/j.jtherbio.2010.06.01
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title Thermal benefitsofartificialsheltersinsnakes:Aradiotelemetricstudy of twosympatriccolubrids
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