Comment on "Predator classification by the sea pen Ptilosarcus gurneyi (Cnidaria): role of waterborne chemical cues and physical contact with predatory sea stars"

Authors: Dalby Jr J.E.; Elliott J.K.

Source: Canadian Journal of Zoology, Volume 81, Number 3, March 2003 , pp. 556-558(3)

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Abstract:

In their study of behavioural responses of pennatulaceans to physical contact with asteroids in 2002, Weightman and Arsenault claim to be the first to demonstrate that cnidarians have the ability to distinguish predators from nonpredators. In fact, it has been known since at least the 1960s that cnidarians are capable of predator recognition. We briefly describe some of the abundant literature on this topic, especially studies on anthozoans.

Dans leur étude des comportements des pennatulacés en réaction à des contacts physiques avec des astéroïdes dans 2002, Weightman et Arsenault prétendent être les premiers à démontrer que les cnidaires sont capables de distinguer les prédateurs des organismes non prédateurs. En fait déjà dans les années 1960, et même avant, on savait les cnidaires capables de reconnaître des prédateurs. Nous décrivons brièvement une partie de l'abondante littérature disponible sur ce sujet, particulièrement les études portant sur les anthozoaires.[Traduit par la Rédaction]

Document Type: Discussion

Publication date: 2003-03-01

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Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
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