Is salamander arboreality limited by broad-scale climatic conditions?

Identifying the historical processes that drive microhabitat transitions across deep time is of great interest to evolutionary biologists. Morphological variation can often reveal such mechanisms, but in clades with high microhabitat diversity and no concomitant morphological specialization, the fac...

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Autores principales:	Erica K Baken, Lauren E Mellenthin, Dean C Adams
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/86ea744e590c451c8c30058143647038
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spelling	oai:doaj.org-article:86ea744e590c451c8c300581436470382021-12-02T20:17:51ZIs salamander arboreality limited by broad-scale climatic conditions?1932-620310.1371/journal.pone.0255393https://doaj.org/article/86ea744e590c451c8c300581436470382021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255393https://doaj.org/toc/1932-6203Identifying the historical processes that drive microhabitat transitions across deep time is of great interest to evolutionary biologists. Morphological variation can often reveal such mechanisms, but in clades with high microhabitat diversity and no concomitant morphological specialization, the factors influencing animal transitions across microhabitats are more difficult to identify. Lungless salamanders (family: Plethodontidae) have transitioned into and out of the arboreal microhabitat many times throughout their evolutionary history without substantial morphological specialization. In this study, we explore the relationship between microhabitat use and broad-scale climatic patterns across species' ranges to test the role of climate in determining the availability of the arboreal microhabitat. Using phylogenetic comparative methods, we reveal that arboreal species live in warmer, lower elevation regions than terrestrial species. We also employ ecological niche modeling as a complementary approach, quantifying species-level pairwise comparisons of niche overlap. The results of this approach demonstrate that arboreal species on average display more niche overlap with other arboreal species than with terrestrial species after accounting for non-independence of niche model pairs caused by geographic and phylogenetic distances. Our results suggest that occupation of the arboreal microhabitat by salamanders may only be possible in sufficiently warm, low elevation conditions. More broadly, this study indicates that the impact of micro-environmental conditions on temporary microhabitat use, as demonstrated by small-scale ecological studies, may scale up dramatically to shape macroevolutionary patterns.Erica K BakenLauren E MellenthinDean C AdamsPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255393 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Erica K Baken Lauren E Mellenthin Dean C Adams Is salamander arboreality limited by broad-scale climatic conditions?
description	Identifying the historical processes that drive microhabitat transitions across deep time is of great interest to evolutionary biologists. Morphological variation can often reveal such mechanisms, but in clades with high microhabitat diversity and no concomitant morphological specialization, the factors influencing animal transitions across microhabitats are more difficult to identify. Lungless salamanders (family: Plethodontidae) have transitioned into and out of the arboreal microhabitat many times throughout their evolutionary history without substantial morphological specialization. In this study, we explore the relationship between microhabitat use and broad-scale climatic patterns across species' ranges to test the role of climate in determining the availability of the arboreal microhabitat. Using phylogenetic comparative methods, we reveal that arboreal species live in warmer, lower elevation regions than terrestrial species. We also employ ecological niche modeling as a complementary approach, quantifying species-level pairwise comparisons of niche overlap. The results of this approach demonstrate that arboreal species on average display more niche overlap with other arboreal species than with terrestrial species after accounting for non-independence of niche model pairs caused by geographic and phylogenetic distances. Our results suggest that occupation of the arboreal microhabitat by salamanders may only be possible in sufficiently warm, low elevation conditions. More broadly, this study indicates that the impact of micro-environmental conditions on temporary microhabitat use, as demonstrated by small-scale ecological studies, may scale up dramatically to shape macroevolutionary patterns.
format	article
author	Erica K Baken Lauren E Mellenthin Dean C Adams
author_facet	Erica K Baken Lauren E Mellenthin Dean C Adams
author_sort	Erica K Baken
title	Is salamander arboreality limited by broad-scale climatic conditions?
title_short	Is salamander arboreality limited by broad-scale climatic conditions?
title_full	Is salamander arboreality limited by broad-scale climatic conditions?
title_fullStr	Is salamander arboreality limited by broad-scale climatic conditions?
title_full_unstemmed	Is salamander arboreality limited by broad-scale climatic conditions?
title_sort	is salamander arboreality limited by broad-scale climatic conditions?
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/86ea744e590c451c8c30058143647038
work_keys_str_mv	AT ericakbaken issalamanderarborealitylimitedbybroadscaleclimaticconditions AT laurenemellenthin issalamanderarborealitylimitedbybroadscaleclimaticconditions AT deancadams issalamanderarborealitylimitedbybroadscaleclimaticconditions
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Is salamander arboreality limited by broad-scale climatic conditions?

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