Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny

Bats are atypical small mammals. Size is crucial for bats because it affects most aerodynamic variables and several key echolocation parameters. In turn, scaling relationships of both flight and echolocation have been suggested to constrain bat body size evolution. Previous studies have found a larg...

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Publicado:	2018
Materias:	Body mass reconstruction Chiroptera Macroevolution Nested constraints Optimization
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10647554_v_n_p_MoyersArevalo http://hdl.handle.net/20.500.12110/paper_10647554_v_n_p_MoyersArevalo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_10647554_v_n_p_MoyersArevalo
record_format	dspace
spelling	paper:paper_10647554_v_n_p_MoyersArevalo2023-06-08T16:04:12Z Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny Body mass reconstruction Chiroptera Macroevolution Nested constraints Optimization Bats are atypical small mammals. Size is crucial for bats because it affects most aerodynamic variables and several key echolocation parameters. In turn, scaling relationships of both flight and echolocation have been suggested to constrain bat body size evolution. Previous studies have found a large phylogenetic effect and the inclusion of early Eocene fossil bats contributed to recover idiosyncratic body size change patterns in bats. Here, we test these previous hypotheses of bat body size evolution using a large, comprehensive supermatrix phylogeny (+800 taxa) to optimize body size and examine changes reconstructed along branches. Our analysis provides evidence of rapid stem phyletic nanism, an ancestral value stabilized at 12 g for crown-clade Chiroptera followed by backbone stasis, low-magnitude changes inside established families, and massive body size increase at accelerated rate in pteropodid subclades. Total variation amount explained by pteropodid subclades was 86.3%, with most changes reconstructed as phyletic increases but also apomorphic decreases. We evaluate these macroevolutionary patterns in light of the constraints hypothesis, and in terms of both neutral and adaptive evolutionary models. The reconstructed macroevolution of bat body size led us to propose that echolocation and flight work as successive, nested constraints limiting bat evolution along the body size scale. © 2018, Springer Science+Business Media, LLC, part of Springer Nature. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10647554_v_n_p_MoyersArevalo http://hdl.handle.net/20.500.12110/paper_10647554_v_n_p_MoyersArevalo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Body mass reconstruction Chiroptera Macroevolution Nested constraints Optimization
spellingShingle	Body mass reconstruction Chiroptera Macroevolution Nested constraints Optimization Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
topic_facet	Body mass reconstruction Chiroptera Macroevolution Nested constraints Optimization
description	Bats are atypical small mammals. Size is crucial for bats because it affects most aerodynamic variables and several key echolocation parameters. In turn, scaling relationships of both flight and echolocation have been suggested to constrain bat body size evolution. Previous studies have found a large phylogenetic effect and the inclusion of early Eocene fossil bats contributed to recover idiosyncratic body size change patterns in bats. Here, we test these previous hypotheses of bat body size evolution using a large, comprehensive supermatrix phylogeny (+800 taxa) to optimize body size and examine changes reconstructed along branches. Our analysis provides evidence of rapid stem phyletic nanism, an ancestral value stabilized at 12 g for crown-clade Chiroptera followed by backbone stasis, low-magnitude changes inside established families, and massive body size increase at accelerated rate in pteropodid subclades. Total variation amount explained by pteropodid subclades was 86.3%, with most changes reconstructed as phyletic increases but also apomorphic decreases. We evaluate these macroevolutionary patterns in light of the constraints hypothesis, and in terms of both neutral and adaptive evolutionary models. The reconstructed macroevolution of bat body size led us to propose that echolocation and flight work as successive, nested constraints limiting bat evolution along the body size scale. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
title	Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
title_short	Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
title_full	Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
title_fullStr	Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
title_full_unstemmed	Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny
title_sort	evolution of body mass in bats: insights from a large supermatrix phylogeny
publishDate	2018
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10647554_v_n_p_MoyersArevalo http://hdl.handle.net/20.500.12110/paper_10647554_v_n_p_MoyersArevalo
_version_	1768544515514171392

Evolution of Body Mass in Bats: Insights from a Large Supermatrix Phylogeny

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