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Climate-driven coral reorganisation influences aggressive behaviour in juvenile coral-reef fishes

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Climate-driven coral reorganisation influences aggressive behaviour in juvenile coral-reef fishes. / Kok, Judith E.; Graham, Nicholas Anthony James; Hoogenboom, Mia O.

In: Coral Reefs, Vol. 35, No. 2, 06.2016, p. 473-483.

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Kok, Judith E. ; Graham, Nicholas Anthony James ; Hoogenboom, Mia O. / Climate-driven coral reorganisation influences aggressive behaviour in juvenile coral-reef fishes. In: Coral Reefs. 2016 ; Vol. 35, No. 2. pp. 473-483.

Bibtex

@article{7ed27d51385a463e872485b0f4a1b528,
title = "Climate-driven coral reorganisation influences aggressive behaviour in juvenile coral-reef fishes",
abstract = "Globally, habitat degradation is altering the abundance and diversity of species in a variety of ecosystems. This study aimed to determine how habitat degradation, in terms of changing coral composition under climate change, affected abundance, species richness and aggressive behaviour of juveniles of three damselfishes (Pomacentrus moluccensis, P. amboinensis and Dischistodus perspicillatus, in order of decreasing reliance on coral). Patch reefs were constructed to simulate two types of reefs: present-day reefs that are vulnerable to climate-induced coral bleaching, and reefs with more bleaching-robust coral taxa, thereby simulating the likely future of coral reefs under a warming climate. Fish communities were allowed to establish naturally on the reefs during the summer recruitment period. Climate-robust reefs had lower total species richness of coral-reef fishes than climate-vulnerable reefs, but total fish abundance was not significantly different between reef types (pooled across all species and life-history stages). The nature of aggressive interactions, measured as the number of aggressive chases, varied according to coral composition; on climate-robust reefs, juveniles used the substratum less often to avoid aggression from competitors, and interspecific aggression became relatively more frequent than intraspecific aggression for juveniles of the coral-obligate P. moluccensis. This study highlights the importance of coral composition as a determinant of behaviour and diversity of coral-reef fishes.",
keywords = "Benthic composition, Habitat degradation, Intraspecific and interspecific aggression, Species richness , Community dynamics ",
author = "Kok, {Judith E.} and Graham, {Nicholas Anthony James} and Hoogenboom, {Mia O.}",
note = "The final publication is available at Springer via http://dx.doi.org/10.1007/s00338-016-1411-6",
year = "2016",
month = jun
doi = "10.1007/s00338-016-1411-6",
language = "English",
volume = "35",
pages = "473--483",
journal = "Coral Reefs",
issn = "0722-4028",
publisher = "Springer-Verlag",
number = "2",

}

RIS

TY - JOUR

T1 - Climate-driven coral reorganisation influences aggressive behaviour in juvenile coral-reef fishes

AU - Kok, Judith E.

AU - Graham, Nicholas Anthony James

AU - Hoogenboom, Mia O.

N1 - The final publication is available at Springer via http://dx.doi.org/10.1007/s00338-016-1411-6

PY - 2016/6

Y1 - 2016/6

N2 - Globally, habitat degradation is altering the abundance and diversity of species in a variety of ecosystems. This study aimed to determine how habitat degradation, in terms of changing coral composition under climate change, affected abundance, species richness and aggressive behaviour of juveniles of three damselfishes (Pomacentrus moluccensis, P. amboinensis and Dischistodus perspicillatus, in order of decreasing reliance on coral). Patch reefs were constructed to simulate two types of reefs: present-day reefs that are vulnerable to climate-induced coral bleaching, and reefs with more bleaching-robust coral taxa, thereby simulating the likely future of coral reefs under a warming climate. Fish communities were allowed to establish naturally on the reefs during the summer recruitment period. Climate-robust reefs had lower total species richness of coral-reef fishes than climate-vulnerable reefs, but total fish abundance was not significantly different between reef types (pooled across all species and life-history stages). The nature of aggressive interactions, measured as the number of aggressive chases, varied according to coral composition; on climate-robust reefs, juveniles used the substratum less often to avoid aggression from competitors, and interspecific aggression became relatively more frequent than intraspecific aggression for juveniles of the coral-obligate P. moluccensis. This study highlights the importance of coral composition as a determinant of behaviour and diversity of coral-reef fishes.

AB - Globally, habitat degradation is altering the abundance and diversity of species in a variety of ecosystems. This study aimed to determine how habitat degradation, in terms of changing coral composition under climate change, affected abundance, species richness and aggressive behaviour of juveniles of three damselfishes (Pomacentrus moluccensis, P. amboinensis and Dischistodus perspicillatus, in order of decreasing reliance on coral). Patch reefs were constructed to simulate two types of reefs: present-day reefs that are vulnerable to climate-induced coral bleaching, and reefs with more bleaching-robust coral taxa, thereby simulating the likely future of coral reefs under a warming climate. Fish communities were allowed to establish naturally on the reefs during the summer recruitment period. Climate-robust reefs had lower total species richness of coral-reef fishes than climate-vulnerable reefs, but total fish abundance was not significantly different between reef types (pooled across all species and life-history stages). The nature of aggressive interactions, measured as the number of aggressive chases, varied according to coral composition; on climate-robust reefs, juveniles used the substratum less often to avoid aggression from competitors, and interspecific aggression became relatively more frequent than intraspecific aggression for juveniles of the coral-obligate P. moluccensis. This study highlights the importance of coral composition as a determinant of behaviour and diversity of coral-reef fishes.

KW - Benthic composition

KW - Habitat degradation

KW - Intraspecific and interspecific aggression

KW - Species richness

KW - Community dynamics

U2 - 10.1007/s00338-016-1411-6

DO - 10.1007/s00338-016-1411-6

M3 - Journal article

VL - 35

SP - 473

EP - 483

JO - Coral Reefs

JF - Coral Reefs

SN - 0722-4028

IS - 2

ER -