Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use

© 2015 The Author(s) Published by the Royal Society. All rights reserved.Patterns of ecological specialization offer invaluable information about ecosystems. Yet, specialization is rarely quantified across several ecological niche axes and variables beyond the link between morphological and dietary...

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Main Authors: Brandl, S., Robbins, William, Bellwood, D.
Format: Journal Article
Published: The Royal Society Publishing 2015
Online Access:http://hdl.handle.net/20.500.11937/63077
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author Brandl, S.
Robbins, William
Bellwood, D.
author_facet Brandl, S.
Robbins, William
Bellwood, D.
author_sort Brandl, S.
building Curtin Institutional Repository
collection Online Access
description © 2015 The Author(s) Published by the Royal Society. All rights reserved.Patterns of ecological specialization offer invaluable information about ecosystems. Yet, specialization is rarely quantified across several ecological niche axes and variables beyond the link between morphological and dietary specialization have received little attention. Here, we provide a quantitative evaluation of ecological specialization in a coral reef fish assemblage (f. Acanthuridae) along one fundamental and two realized niche axes. Specifically, we examined ecological specialization in 10 surgeonfish species with regards to morphology and two realized niche axes associated with diet and foraging microhabitat utilization using a recently developed multidimensional framework. We then investigated the potential relationships between morphological and behavioural specialization. These relationships differed markedly from the traditional ecomorphological paradigm. While morphological specialization showed no relationship with dietary specialization, it exhibited a strong relationship with foraging microhabitat specialization. However, this relationship was inverted: species with specialized morphologies were microhabitat generalists, whereas generalized morphotypes were microhabitat specialists. Interestingly, this mirrors relationships found in plant–pollinator communities and may also be applicable to other ecosystems, highlighting the potential importance of including niche axes beyond dietary specialization into ecomorphological frameworks. On coral reefs, it appears that morphotypes commonly perceived as most generalized may, in fact, be specialized in exploiting flat and easily accessible microhabitats.
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spelling curtin-20.500.11937-630772018-02-06T06:23:28Z Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use Brandl, S. Robbins, William Bellwood, D. © 2015 The Author(s) Published by the Royal Society. All rights reserved.Patterns of ecological specialization offer invaluable information about ecosystems. Yet, specialization is rarely quantified across several ecological niche axes and variables beyond the link between morphological and dietary specialization have received little attention. Here, we provide a quantitative evaluation of ecological specialization in a coral reef fish assemblage (f. Acanthuridae) along one fundamental and two realized niche axes. Specifically, we examined ecological specialization in 10 surgeonfish species with regards to morphology and two realized niche axes associated with diet and foraging microhabitat utilization using a recently developed multidimensional framework. We then investigated the potential relationships between morphological and behavioural specialization. These relationships differed markedly from the traditional ecomorphological paradigm. While morphological specialization showed no relationship with dietary specialization, it exhibited a strong relationship with foraging microhabitat specialization. However, this relationship was inverted: species with specialized morphologies were microhabitat generalists, whereas generalized morphotypes were microhabitat specialists. Interestingly, this mirrors relationships found in plant–pollinator communities and may also be applicable to other ecosystems, highlighting the potential importance of including niche axes beyond dietary specialization into ecomorphological frameworks. On coral reefs, it appears that morphotypes commonly perceived as most generalized may, in fact, be specialized in exploiting flat and easily accessible microhabitats. 2015 Journal Article http://hdl.handle.net/20.500.11937/63077 10.1098/rspb.2015.1147 The Royal Society Publishing unknown
spellingShingle Brandl, S.
Robbins, William
Bellwood, D.
Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title_full Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title_fullStr Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title_full_unstemmed Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title_short Exploring the nature of ecological specialization in a coral reef fish community: Morphology, diet and foraging microhabitat use
title_sort exploring the nature of ecological specialization in a coral reef fish community: morphology, diet and foraging microhabitat use
url http://hdl.handle.net/20.500.11937/63077