Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).

Phylogeny, ecology, and sensorial constraints are thought to be the most important factors influencing echolocation call design in bats. The Molossidae is a diverse bat family with a majority of species restricted to tropical and subtropical regions. Most molossids are specialized to forage for inse...

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Autores principales:	Kirsten Jung, Jesús Molinari, Elisabeth K V Kalko
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9b4a4d1dbb774851bd34c9e2f8b3bbaf
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spelling	oai:doaj.org-article:9b4a4d1dbb774851bd34c9e2f8b3bbaf2021-11-18T08:37:50ZDriving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).1932-620310.1371/journal.pone.0085279https://doaj.org/article/9b4a4d1dbb774851bd34c9e2f8b3bbaf2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24454833/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Phylogeny, ecology, and sensorial constraints are thought to be the most important factors influencing echolocation call design in bats. The Molossidae is a diverse bat family with a majority of species restricted to tropical and subtropical regions. Most molossids are specialized to forage for insects in open space, and thus share similar navigational challenges. We use an unprecedented dataset on the echolocation calls of 8 genera and 18 species of New World molossids to explore how habitat, phylogenetic relatedness, body mass, and prey perception contribute to echolocation call design. Our results confirm that, with the exception of the genus Molossops, echolocation calls of these bats show a typical design for open space foraging. Two lines of evidence point to echolocation call structure of molossids reflecting phylogenetic relatedness. First, such structure is significantly more similar within than among genera. Second, except for allometric scaling, such structure is nearly the same in congeneric species. Despite contrasting body masses, 12 of 18 species call within a relatively narrow frequency range of 20 to 35 kHz, a finding that we explain by using a modeling approach whose results suggest this frequency range to be an adaptation optimizing prey perception in open space. To conclude, we argue that the high variability in echolocation call design of molossids is an advanced evolutionary trait allowing the flexible adjustment of echolocation systems to various sensorial challenges, while conserving sender identity for social communication. Unraveling evolutionary drivers for echolocation call design in bats has so far been hampered by the lack of adequate model organisms sharing a phylogenetic origin and facing similar sensorial challenges. We thus believe that knowledge of the echolocation call diversity of New World molossid bats may prove to be landmark to understand the evolution and functionality of species-specific signal design in bats.Kirsten JungJesús MolinariElisabeth K V KalkoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e85279 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kirsten Jung Jesús Molinari Elisabeth K V Kalko Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
description	Phylogeny, ecology, and sensorial constraints are thought to be the most important factors influencing echolocation call design in bats. The Molossidae is a diverse bat family with a majority of species restricted to tropical and subtropical regions. Most molossids are specialized to forage for insects in open space, and thus share similar navigational challenges. We use an unprecedented dataset on the echolocation calls of 8 genera and 18 species of New World molossids to explore how habitat, phylogenetic relatedness, body mass, and prey perception contribute to echolocation call design. Our results confirm that, with the exception of the genus Molossops, echolocation calls of these bats show a typical design for open space foraging. Two lines of evidence point to echolocation call structure of molossids reflecting phylogenetic relatedness. First, such structure is significantly more similar within than among genera. Second, except for allometric scaling, such structure is nearly the same in congeneric species. Despite contrasting body masses, 12 of 18 species call within a relatively narrow frequency range of 20 to 35 kHz, a finding that we explain by using a modeling approach whose results suggest this frequency range to be an adaptation optimizing prey perception in open space. To conclude, we argue that the high variability in echolocation call design of molossids is an advanced evolutionary trait allowing the flexible adjustment of echolocation systems to various sensorial challenges, while conserving sender identity for social communication. Unraveling evolutionary drivers for echolocation call design in bats has so far been hampered by the lack of adequate model organisms sharing a phylogenetic origin and facing similar sensorial challenges. We thus believe that knowledge of the echolocation call diversity of New World molossid bats may prove to be landmark to understand the evolution and functionality of species-specific signal design in bats.
format	article
author	Kirsten Jung Jesús Molinari Elisabeth K V Kalko
author_facet	Kirsten Jung Jesús Molinari Elisabeth K V Kalko
author_sort	Kirsten Jung
title	Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
title_short	Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
title_full	Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
title_fullStr	Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
title_full_unstemmed	Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
title_sort	driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/9b4a4d1dbb774851bd34c9e2f8b3bbaf
work_keys_str_mv	AT kirstenjung drivingfactorsfortheevolutionofspeciesspecificecholocationcalldesigninnewworldfreetailedbatsmolossidae AT jesusmolinari drivingfactorsfortheevolutionofspeciesspecificecholocationcalldesigninnewworldfreetailedbatsmolossidae AT elisabethkvkalko drivingfactorsfortheevolutionofspeciesspecificecholocationcalldesigninnewworldfreetailedbatsmolossidae
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Driving factors for the evolution of species-specific echolocation call design in new world free-tailed bats (molossidae).

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