Ecological and phylogenetic constraints on body size in Indo-Pacific fishes

Warburton K. (1989) Ecological and phylogenetic constraints on body size in Indo-Pacific fishes. Environmental Biology of Fishes, 24 1: 13-22. doi:10.1007/BF00001606


Author Warburton K.
Title Ecological and phylogenetic constraints on body size in Indo-Pacific fishes
Journal name Environmental Biology of Fishes   Check publisher's open access policy
ISSN 0378-1909
Publication date 1989-01-01
Sub-type Article (original research)
DOI 10.1007/BF00001606
Open Access Status
Volume 24
Issue 1
Start page 13
End page 22
Total pages 10
Publisher Kluwer Academic Publishers
Subject 2303 Ecology
1104 Complementary and Alternative Medicine
Abstract Regional Indo-Pacific fish faunas were examined for broad patterns in species size composition. An analysis of the New Guinea fauna, based on data compiled by Munro (1967), revealed that (i) maximum body size for a species tended to be larger in the more advanced teleost families; (ii) intrafamilial size variation (expressed by the standard deviation of log-transformed maximum body size) was significantly lower in the suborder Percoidei than in families drawn from broader taxonomic groupings; and (iii) size variation was significantly positively correlated with mean maximum body size and, in the percoids only, with the number of species in a family. An analysis of Marshall Islands reef fish assemblages, based mainly on the data of Matt & Strasburg (1960), indicated, that (i) mean maximum body size varied significantly between habitats and feeding categories, and tended to increase with openness of habitat and with trophic level; (ii) size variation within feeding categories increased with the number of species, but not significantly so; and (iii) confamilial species generally exhibited close similarities in terms of preferred habitats, trophic levels and foraging modes. These findings indicate that interspecific body size variation is both phylogenetically and ecologically constrained. Size variation within ecological categories (especially habitats) was much greater than within families. Thus, confamilial species generally did not exhibit the range of body sizes theoretically open to members of their habitat feeding guilds. The results are also consistent with aspects of resource-partitioning theory, notably that resource-utilisation breadth should increase with the number of coexisting species.
Keyword Feeding
Habitat
Phylogeny
Size variation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 12 Jul 2016, 12:48:24 EST by System User