Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus.

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Autores principales: Branconi, Rebecca, Buston, Peter M, Wong, Marian Y L
Formato: Artículo científico
Lenguaje:en
Publicado: Journal of fish biology 2025
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author Branconi, Rebecca
Buston, Peter M
Wong, Marian Y L
author_facet Branconi, Rebecca
Buston, Peter M
Wong, Marian Y L
Branconi, Rebecca
Buston, Peter M
Wong, Marian Y L
collection PubMed - marine biology
contents Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus. Branconi, Rebecca Buston, Peter M Wong, Marian Y L We present a random pattern of body size ratios between adjacent ranked group members in the humbug damselfish Dascyllus aruanus. This random distribution of size ratios differs from the other well-known group-living coral reef fishes which exhibit non-random, well-defined and closely regulated size differences between ranks. Our results suggest a relaxation of social constraints in D. aruanus which may be due to its social system, mating system, capacity for movement or a combination thereof. Investigating how these traits co-vary within and among populations is an interesting avenue of future research.
format Artículo científico
id pubmed_40304152
institution PubMed
language en
publishDate 2025
publisher Journal of fish biology
record_format pubmed
spellingShingle Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus.
Branconi, Rebecca
Buston, Peter M
Wong, Marian Y L
Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus. Branconi, Rebecca Buston, Peter M Wong, Marian Y L We present a random pattern of body size ratios between adjacent ranked group members in the humbug damselfish Dascyllus aruanus. This random distribution of size ratios differs from the other well-known group-living coral reef fishes which exhibit non-random, well-defined and closely regulated size differences between ranks. Our results suggest a relaxation of social constraints in D. aruanus which may be due to its social system, mating system, capacity for movement or a combination thereof. Investigating how these traits co-vary within and among populations is an interesting avenue of future research.
title Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus.
url https://pubmed.ncbi.nlm.nih.gov/40304152/