Article (Scientific journals)
Diversification and functional evolution of reef fish feeding guilds
Gajdzik, Laura; Aguilar-Medrano, Rosalia; Frederich, Bruno
2019In Ecology Letters, 22, p. 572-582
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Keywords :
coral reef fishes; ecological diversity; functional diversity; evolutionary rate; functional ecology; Labridae; wrasses; Pomacentridae; damselfishes; trait evolution; versatility; HiSSE
Abstract :
[en] A core eco-evolutionary aim is to better understand the factors driving the diversification of functions in ecosystems. Using phylogenetic, trophic, and functional information, we tested whether trophic habits (i.e. feeding guilds) affect lineage and functional diversification in two major radiations of reef fishes. Our results from wrasses (Labridae) and damselfishes (Pomacentridae) do not fully support the "dead-end" hypothesis that specialisation leads to reduce speciation rates because the tempo of lineage diversification did not substantially vary among guilds in both fish families. Our findings also demonstrate a tight relationship between trophic habits and functional roles held by fish in reef ecosystems, which is not associated with a variation in the tempo of functional diversification among guilds. By illustrating the pivotal importance of the generalist feeding strategy during the evolutionary history of reef fishes, our study emphasises the role of this feeding guild as a reservoir for future diversity.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège
Disciplines :
Zoology
Environmental sciences & ecology
Aquatic sciences & oceanology
Author, co-author :
Gajdzik, Laura
Aguilar-Medrano, Rosalia
Frederich, Bruno  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Département de Biologie, Ecologie et Evolution
Language :
English
Title :
Diversification and functional evolution of reef fish feeding guilds
Publication date :
10 March 2019
Journal title :
Ecology Letters
ISSN :
1461-023X
eISSN :
1461-0248
Publisher :
Wiley, Oxford, United Kingdom
Volume :
22
Pages :
572-582
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Available on ORBi :
since 18 January 2019

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