The influence of phylogeny, size and behaviour on patterns of covariation in salmonid life histories.

J. A. Hutchings, D. W. Morris

Résultat de recherche: Articleexamen par les pairs

76 Citations (Scopus)

Résumé

Evaluated covariation in 8 life history traits within the Salmonidae. Principal components analysis defined a primary tactic ranking salmonids from large, early-maturing, semelparous individuals bearing few, large, rapidly developing eggs to the opposite suite of characters in small, iteroparous individuals. The analysis also defined a secondary cline from anadromous to freshwater forms, and a tertiary tactic describing variation in development. Clustering of species on the basis of life history traits reflected taxonomic affiliations. Life history traits appear to co-evolve and form successful life history strategies best suited to the biology and environment of a given taxon. Migratory behaviour and life histories are closely linked. The correspondence between behaviour and life histories may lead to unanticipated but nevertheless successful life history strategies. -Authors

Langue d'origineEnglish
Pages (de-à)118-124
Nombre de pages7
JournalOikos
Volume45
Numéro de publication1
DOI
Statut de publicationPublished - 1985
Publié à l'externeOui

ASJC Scopus Subject Areas

  • Ecology, Evolution, Behavior and Systematics

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