Extraoral and intraoral feeding: flexible foraging tactics in the South American sun‐star, Heliaster helianthus

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

The South American sun‐star, Heliaster helianthus, is capable of adopting both the extraoral and intraoral mode of feeding. Observations were made on the feeding activities of H. helianthus in an intertidal habitat in central Peru. The proportion of individuals engaged in intraoral feeding was high amongst small H. heliunthus of less than 14 cm in diameter and gradually declined in larger size classes. Extraoral feeders had significantly larger meal sizes (total prey biomass) than intraoral feeders in all the size categories of H. heliunthus. Extraoral feeders also consumed larger individuals of the most important prey species, Semimytilus algosus, than intraoral feeders. The advantages and disadvantages of the two feeding modes are discussed and the meaning of the dual foraging tactics in H. helianthus is considered.

本文言語英語
ページ(範囲)439-447
ページ数9
ジャーナルJournal of Zoology
225
3
DOI
出版ステータス出版済み - 1 1 1991
外部発表はい

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

フィンガープリント 「Extraoral and intraoral feeding: flexible foraging tactics in the South American sun‐star, Heliaster helianthus」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル