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An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki).

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An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki) in the coastal Ross Sea. Antarctic starfish are omnivores with a wide range of potential prey and an ability to filter feed. Marine food webs often have a high degree of omnivory, with animals tending to feed broadly across available food types, both up and down the food chain. As a result, species such as starfish do not appear to be restricted to fixed trophic positions in marine food webs. In marine ecosystems in Antarctica, sea ice conditions influence food web dynamics by affecting the primary food sources that are available. This photograph originally appeared on the cover of Ecology (88:11) in November of 2007.
Cumulative Rating: This resource has a 4 star rating (based on 1 response)
Format
Primary or BEN resource type
Discipline Specific Core Concepts
Life science discipline (subject)
Keywords predation, food web, dynamics, ice, primary production, marine, aquatic, Antarctica
Key taxa Antarctic starfish, Odontaster validus, Antarctic scallop, Adamisium colbecki
Audience
Intended End User Role
Language
Educational Language
Pedagogical Use Description This photograph can be used to illustrate starfish, sea scallops, or as an example of an Antarctic marine species.
Primary Author Controlled Name
Primary Author Affiliation Antarctica New Zealand
Primary Author email n/a
Rights Copyright 2007 by the Ecological Society of America.
Date Of Record Submission 2008-04-08

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