Dear enemy recognition: Difference between revisions
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Added references to studies, and the observation that this isn't universal behaviour. |
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In [[ethology]], '''dear enemy recognition''' is a |
In [[ethology]], '''dear enemy recognition''' is a hypothesis that a [[Territory (animal)|territorial animal]] will responds more strongly to strangers than to its neighbors from adjacent territories. This phenomenon may be generally advantageous to an animal because it minimizes time and energy spent on territorial defense, and reduces the risk of injury during territorial encounters.<ref>Plough, F. H. et al. (2002) ''Vertebrate Life'', 6th Ed. Prentice Hall Inc., Upper Saddle River, NJ. ISBN 0130412481</ref> |
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However, many studies have shown that this response is not universal. |
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Examples include: |
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* A study of New Zealand Bellbirds <ref>http://beheco.oxfordjournals.org/cgi/content/abstract/arn027v1</ref> have found that the exact opposite of the ''Dear Enemy recognition'' occurred. |
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* A study of Tree Lizards in New Mexico found no significant differences in the aggressive behaviors performed toward neighbors or toward strangers <ref>http://apt.allenpress.com/perlserv/?SESSID=68abdb5a2d1bc1ff57a67415b85766c6&request=get-abstract&doi=10.1670%2F0022-1511(1998)032%5B0162%3ARTIATD%5D2.3.CO%3B2</ref> |
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* A study of treefrogs <ref>http://www.springerlink.com/content/b38makgygba0lhwm/</ref> found no differences in aggressive behaviours when comparing calls of neighbouring frogs or unknown frogs. |
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== References == |
== References == |
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Revision as of 11:01, 10 April 2008
In ethology, dear enemy recognition is a hypothesis that a territorial animal will responds more strongly to strangers than to its neighbors from adjacent territories. This phenomenon may be generally advantageous to an animal because it minimizes time and energy spent on territorial defense, and reduces the risk of injury during territorial encounters.[1]
However, many studies have shown that this response is not universal.
Examples include:
- A study of New Zealand Bellbirds [2] have found that the exact opposite of the Dear Enemy recognition occurred.
- A study of Tree Lizards in New Mexico found no significant differences in the aggressive behaviors performed toward neighbors or toward strangers [3]
- A study of treefrogs [4] found no differences in aggressive behaviours when comparing calls of neighbouring frogs or unknown frogs.
References
- ^ Plough, F. H. et al. (2002) Vertebrate Life, 6th Ed. Prentice Hall Inc., Upper Saddle River, NJ. ISBN 0130412481
- ^ http://beheco.oxfordjournals.org/cgi/content/abstract/arn027v1
- ^ http://apt.allenpress.com/perlserv/?SESSID=68abdb5a2d1bc1ff57a67415b85766c6&request=get-abstract&doi=10.1670%2F0022-1511(1998)032%5B0162%3ARTIATD%5D2.3.CO%3B2
- ^ http://www.springerlink.com/content/b38makgygba0lhwm/