Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua

Abstract Basking and retreat sites constitute a key resource in the habitat of any ectotherm. Identifying the elements that are used and modelling the microhabitat selection of species is crucial for assessing the impact of anthropogenic disturbances at the population level and, therefore, focusing...

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Main Authors: NADIA VICENZI, RUBÉN MASSARELLI, NORA IBARGÜENGOYTÍA, VALERIA CORBALÁN
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2021-05-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000301013&tlng=en
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author NADIA VICENZI
RUBÉN MASSARELLI
NORA IBARGÜENGOYTÍA
VALERIA CORBALÁN
author_facet NADIA VICENZI
RUBÉN MASSARELLI
NORA IBARGÜENGOYTÍA
VALERIA CORBALÁN
author_sort NADIA VICENZI
collection DOAJ
description Abstract Basking and retreat sites constitute a key resource in the habitat of any ectotherm. Identifying the elements that are used and modelling the microhabitat selection of species is crucial for assessing the impact of anthropogenic disturbances at the population level and, therefore, focusing on conservation efforts. We investigated how structural attributes of the microhabitat and biotic factors influence the probability of basking and retreat sites use by Phymaturus palluma, a rock-dwelling and viviparous lizard endemic to the Central Andes of Argentina. We measured the characteristics of a series of rocks (basking sites) and shelters (retreat sites) in the study area and compared lizard resource use versus availability using resource selection analyses (RSFs). According to our best RSF model, P. palluma select high and large rocks as basking sites and prefer those near their retreat sites and far from the basking sites of their neighbours. In contrast, retreat site selection is related to the length, depth, slope, and width of the shelter. Microhabitat site selection of P. palluma is associated with behavioural improvements such as enhancing basking capacity, reducing both intraspecific competition with neighbours and predation risk.
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spelling doaj.art-79ad2d47771c433391890800e2f37efa2022-12-21T17:21:36ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902021-05-0193210.1590/0001-3765202120190662Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of AconcaguaNADIA VICENZIhttps://orcid.org/0000-0001-7309-7294RUBÉN MASSARELLIhttps://orcid.org/0000-0001-7738-2439NORA IBARGÜENGOYTÍAhttps://orcid.org/0000-0002-1959-2718VALERIA CORBALÁNhttps://orcid.org/0000-0002-3977-392XAbstract Basking and retreat sites constitute a key resource in the habitat of any ectotherm. Identifying the elements that are used and modelling the microhabitat selection of species is crucial for assessing the impact of anthropogenic disturbances at the population level and, therefore, focusing on conservation efforts. We investigated how structural attributes of the microhabitat and biotic factors influence the probability of basking and retreat sites use by Phymaturus palluma, a rock-dwelling and viviparous lizard endemic to the Central Andes of Argentina. We measured the characteristics of a series of rocks (basking sites) and shelters (retreat sites) in the study area and compared lizard resource use versus availability using resource selection analyses (RSFs). According to our best RSF model, P. palluma select high and large rocks as basking sites and prefer those near their retreat sites and far from the basking sites of their neighbours. In contrast, retreat site selection is related to the length, depth, slope, and width of the shelter. Microhabitat site selection of P. palluma is associated with behavioural improvements such as enhancing basking capacity, reducing both intraspecific competition with neighbours and predation risk.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000301013&tlng=encrevicesmicrohabitat selectionhigh-altitude lizardLiolaemidaerocks
spellingShingle NADIA VICENZI
RUBÉN MASSARELLI
NORA IBARGÜENGOYTÍA
VALERIA CORBALÁN
Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
Anais da Academia Brasileira de Ciências
crevices
microhabitat selection
high-altitude lizard
Liolaemidae
rocks
title Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
title_full Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
title_fullStr Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
title_full_unstemmed Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
title_short Basking and retreat site selection of Phymaturus palluma, a rock-dwelling lizard in the Highlands of Aconcagua
title_sort basking and retreat site selection of phymaturus palluma a rock dwelling lizard in the highlands of aconcagua
topic crevices
microhabitat selection
high-altitude lizard
Liolaemidae
rocks
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000301013&tlng=en
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