Optimal foraging movements of Oreaster reticulatus (L.) (Echinodermata: Asteroidea)

R. E. Scheibling

doi:10.1016/0022-0981(81)90127-1

Optimal foraging movements of Oreaster reticulatus (L.) (Echinodermata: Asteroidea)

R. E. Scheibling

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39 Citas (Scopus)

Resumen

Foraging paths of Oreaster reticulatus (L.) on sand bottoms were highly directional. The distance travelled between feedings generally approximated the diameter of the asteroid i.e., the minimum distance required to prevent overlapping feeding sites. This movement pattern optimizes foraging efficiency of O. reticulatus on substrata containing a relatively uniform distribution of its particulate food resources. A directional foraging path prevents regrazing of substrata and extends foraging range. O. reticulatus maintains a general pattern of limited and directional movement over 8-h periods of continuous foraging-feeding activity.

Idioma original	English
Páginas (desde-hasta)	173-185
Número de páginas	13
Publicación	Journal of Experimental Marine Biology and Ecology
Volumen	51
N.º	2-3
DOI	https://doi.org/10.1016/0022-0981(81)90127-1
Estado	Published - abr. 21 1981
Publicado de forma externa	Sí

Nota bibliográfica

Funding Information:
This paper is extractedf rom my dissertations ubmittedi n partial fulfillment of the Ph.D. requirementsin the Marine SciencesC entre,M cGill University, Canada. I am gratefult o my wife Anna for technicala ssistancet,o Drs. C. M. Lalli, H. M. Reiswig,J . M. Lawrencea nd J. A. Commit0 for critically reviewingt he manuscript, and to Dr. R. F. Dill for the useo f researchf acilitiesa t the West Indies Laboratory in St. Croix. Researchf undingw asp rovidedb y a McConnell Memorial Fellowship, a David StewartM emorial Fellowship and a GraduateF aculty SummerR esearch Fellowship from McGill University, and a Postgraduate Scholarship and an OperatingG rant (No. 5248t o Dr. C. M. Lalli) from the National ResearchC ouncil of Canada.

ASJC Scopus Subject Areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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10.1016/0022-0981(81)90127-1

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abstract = "Foraging paths of Oreaster reticulatus (L.) on sand bottoms were highly directional. The distance travelled between feedings generally approximated the diameter of the asteroid i.e., the minimum distance required to prevent overlapping feeding sites. This movement pattern optimizes foraging efficiency of O. reticulatus on substrata containing a relatively uniform distribution of its particulate food resources. A directional foraging path prevents regrazing of substrata and extends foraging range. O. reticulatus maintains a general pattern of limited and directional movement over 8-h periods of continuous foraging-feeding activity.",

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Optimal foraging movements of Oreaster reticulatus (L.) (Echinodermata: Asteroidea)

Resumen

Nota bibliográfica

ASJC Scopus Subject Areas

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