Nom du corpus

Corpus Systématique Animale

Titre du document

Population dynamics and reproductive biology of the commensal isopod Colidotea rostrata (Crustacea: Isopoda: Idoteidae)

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Echinodermes_v2b_0288
Auteur(s)
  • T. D. Stebbins
Affiliation(s)
  • Invertebrate Zoology Section, Natural History Museum of Los Angeles County, 90007, Los Angeles, California, USA
  • Department of Biological Sciences, University of Southern California, 90089, Los Angeles, California, USA
  • Point Loma Biology Laboratory, 4077 North Harbor Drive, 92101, San Diego, California, USA
Résumé

Colidotea rostrata (Benedict, 1898) is the only known commensal idoteid isopod, living on and mimicking the color of two northeastern Pacific sea urchins of the genus Strongylocentrotus. The population dynamics and reproductive biology of C. rostrata on its host urchins were studied at a low rocky intertidal area in southern California (33°40?N; 118°30?W) from December 1984 to December 1986. Isopod populations remained relatively stable throughout the 2 yr study, with isopods inhabiting an average of 56.1% of the urchins at 6.1±0.6 (x±2 SE) isopods per urchin. Female isopods reach sexual maturity at a length of 6.8 mm. Fecundity in C. rostrata averaged 11.8±0.9 (x±2 SE) embryos per brood, and increased with female body size. Breeding occurs all year long in C. rostrata, with a main reproductive period between the warmer spring and summer months. Newly released mancas and juvenile isopods were present during all months of the study. C. rostrata differs from the free-living Idoteidae in its smaller maximum size, reduced fecundity, 1:1 sex ratio, and low juvenile mortality. These features may represent adaptations to a commensal life style that reflect a reduced mortality pressure on these isopods.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
A9DDDAB0AC90DA2A90278B81AC2F2C25165C6C2C
Revue

Marine Biology

Année de publication
1989
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.268
Sous-corpus
  • Echinodermes
Type de publication
Journal
ark:/67375/1BB-3KHWC3SX-W
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