Evolution of microhabitat association and morphology in a diverse group of cryptobenthic coral reef fishes (Teleostei: Gobiidae: Eviota)

Handle URI:
http://hdl.handle.net/10754/562567
Title:
Evolution of microhabitat association and morphology in a diverse group of cryptobenthic coral reef fishes (Teleostei: Gobiidae: Eviota)
Authors:
Tornabene, Luke; Ahmadia, Gabby N.; Berumen, Michael L. ( 0000-0003-2463-2742 ) ; Smith, David J.; Jompa, Jamaluddìn; Pezold, Frank L.
Abstract:
Gobies (Teleostei: Gobiidae) are an extremely diverse and widely distributed group and are the second most species rich family of vertebrates. Ecological drivers are key to the evolutionary success of the Gobiidae. However, ecological and phylogenetic data are lacking for many diverse genera of gobies. Our study investigated the evolution of microhabitat association across the phylogeny of 18 species of dwarfgobies (genus Eviota), an abundant and diverse group of coral reef fishes. In addition, we also explore the evolution of pectoral fin-ray branching and sensory head pores to determine the relationship between morphological evolution and microhabitat shifts. Our results demonstrate that Eviota species switched multiple times from a facultative hard-coral association to inhabiting rubble or mixed sand/rubble habitat. We found no obvious relationship between microhabitat shifts and changes in pectoral fin-ray branching or reduction in sensory pores, with the latter character being highly homoplasious throughout the genus. The relative flexibility in coral-association in Eviota combined with the ability to move into non-coral habitats suggests a genetic capacity for ecological release in contrast to the strict obligate coral-dwelling relationship commonly observed in closely related coral gobies, thus promoting co-existence through fine scale niche partitioning. The variation in microhabitat association may facilitate opportunistic ecological speciation, and species persistence in the face of environmental change. This increased speciation opportunity, in concert with a high resilience to extinction, may explain the exceptionally high diversity seen in Eviota compared to related genera in the family. © 2012 Elsevier Inc.
KAUST Department:
Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division; Marine Science Program; Reef Ecology Lab
Publisher:
Elsevier
Journal:
Molecular Phylogenetics and Evolution
Issue Date:
Jan-2013
DOI:
10.1016/j.ympev.2012.10.014
PubMed ID:
23099149
Type:
Article
ISSN:
10557903
Sponsors:
We thank Jocelyn Curtis-Quick, Dan Lazell, Abi Powell, Iwan, Pippa Mansell, Laura Sheard, Conservation Society of Pohnpei, and Brian Lynch and students from the College of Micronesia for assistance in the field. Mike Cavazos, Tim Harlow, Andrew Layman, and Elizabeth Hinkle assisted with lab work. Ryan Chabarria and Sharon Furiness assisted with lab work and contributed helpful discussion. We thank David Greenfield for assisting with identifications of some species and he and Rick Winterbottom for providing preliminary dichotomous keys for Eviota species. We gratefully acknowledge the support of the staff at the Hoga Marine Research Center, Universitas Hasanuddin (UNHAS), the Wakatobi Government, the Tamana National Wakatobi, the State Ministry of Research and Technology (RISTEK), the KAUST Coastal and Marine Resources Core Lab, and the staff of the Berkley Gump Station in Moorea. Barbara Brown at AMNH, Dave Catania at CAS, and Renny Kurnia Hadiaty at MZB provided assistance with depositing voucher specimens. The first and second authors are indebted to E.V. Ohta and her family members for their selfless contributions that made this project possible. Funding for field work was provided by Operation Wallacea, and by NSF OISE-0553910 to FP.
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Marine Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTornabene, Lukeen
dc.contributor.authorAhmadia, Gabby N.en
dc.contributor.authorBerumen, Michael L.en
dc.contributor.authorSmith, David J.en
dc.contributor.authorJompa, Jamaluddìnen
dc.contributor.authorPezold, Frank L.en
dc.date.accessioned2015-08-03T10:43:04Zen
dc.date.available2015-08-03T10:43:04Zen
dc.date.issued2013-01en
dc.identifier.issn10557903en
dc.identifier.pmid23099149en
dc.identifier.doi10.1016/j.ympev.2012.10.014en
dc.identifier.urihttp://hdl.handle.net/10754/562567en
dc.description.abstractGobies (Teleostei: Gobiidae) are an extremely diverse and widely distributed group and are the second most species rich family of vertebrates. Ecological drivers are key to the evolutionary success of the Gobiidae. However, ecological and phylogenetic data are lacking for many diverse genera of gobies. Our study investigated the evolution of microhabitat association across the phylogeny of 18 species of dwarfgobies (genus Eviota), an abundant and diverse group of coral reef fishes. In addition, we also explore the evolution of pectoral fin-ray branching and sensory head pores to determine the relationship between morphological evolution and microhabitat shifts. Our results demonstrate that Eviota species switched multiple times from a facultative hard-coral association to inhabiting rubble or mixed sand/rubble habitat. We found no obvious relationship between microhabitat shifts and changes in pectoral fin-ray branching or reduction in sensory pores, with the latter character being highly homoplasious throughout the genus. The relative flexibility in coral-association in Eviota combined with the ability to move into non-coral habitats suggests a genetic capacity for ecological release in contrast to the strict obligate coral-dwelling relationship commonly observed in closely related coral gobies, thus promoting co-existence through fine scale niche partitioning. The variation in microhabitat association may facilitate opportunistic ecological speciation, and species persistence in the face of environmental change. This increased speciation opportunity, in concert with a high resilience to extinction, may explain the exceptionally high diversity seen in Eviota compared to related genera in the family. © 2012 Elsevier Inc.en
dc.description.sponsorshipWe thank Jocelyn Curtis-Quick, Dan Lazell, Abi Powell, Iwan, Pippa Mansell, Laura Sheard, Conservation Society of Pohnpei, and Brian Lynch and students from the College of Micronesia for assistance in the field. Mike Cavazos, Tim Harlow, Andrew Layman, and Elizabeth Hinkle assisted with lab work. Ryan Chabarria and Sharon Furiness assisted with lab work and contributed helpful discussion. We thank David Greenfield for assisting with identifications of some species and he and Rick Winterbottom for providing preliminary dichotomous keys for Eviota species. We gratefully acknowledge the support of the staff at the Hoga Marine Research Center, Universitas Hasanuddin (UNHAS), the Wakatobi Government, the Tamana National Wakatobi, the State Ministry of Research and Technology (RISTEK), the KAUST Coastal and Marine Resources Core Lab, and the staff of the Berkley Gump Station in Moorea. Barbara Brown at AMNH, Dave Catania at CAS, and Renny Kurnia Hadiaty at MZB provided assistance with depositing voucher specimens. The first and second authors are indebted to E.V. Ohta and her family members for their selfless contributions that made this project possible. Funding for field work was provided by Operation Wallacea, and by NSF OISE-0553910 to FP.en
dc.publisherElsevieren
dc.subjectCoral reefen
dc.subjectExtinctionen
dc.subjectFishen
dc.subjectGobyen
dc.subjectPhylogenyen
dc.subjectSpeciationen
dc.titleEvolution of microhabitat association and morphology in a diverse group of cryptobenthic coral reef fishes (Teleostei: Gobiidae: Eviota)en
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentMarine Science Programen
dc.contributor.departmentReef Ecology Laben
dc.identifier.journalMolecular Phylogenetics and Evolutionen
dc.contributor.institutionCollege of Science and Engineering, Texas A and M University - Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, United Statesen
dc.contributor.institutionBiology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, United Statesen
dc.contributor.institutionCoral Reef Research Unit, Department of Biological Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, United Kingdomen
dc.contributor.institutionResearch and Development Centre - Marine, Coastal and Small Islands, Universitas Hasanuddin, Makassar, Indonesiaen
kaust.authorBerumen, Michael L.en

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