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Development of antipredator responses in snakes: V. Species differences in ontogenetic trajectories.
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Development of antipredator responses in snakes: V. Species differences in ontogenetic trajectories.

Author: Herzog HA Jr; BB Bowers; GM Burghardt
Edition/Format: Article Article : English
Publication:Developmental psychobiology, 1992 Apr; 25(3): 199-211
Database:From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
Summary:
The ontogeny of antipredator responses in five species of Natricine snakes was examined. In a split-litter experiment, neonates were given a standardized defensive behavior test at 1 and/or 20 days of age. Thamnophis sirtalis and Thamnophis melanogaster showed a significant increase in both striking and fleeing from a threatening stimulus. Thamnophis butleri was not reactive in terms of striking at either age but  Read more...
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Details

Document Type: Article
All Authors / Contributors: Herzog HA Jr; BB Bowers; GM Burghardt
ISSN:0012-1630
OCLC Number: 120374355
Language Note: English
Awards:

Abstract:

The ontogeny of antipredator responses in five species of Natricine snakes was examined. In a split-litter experiment, neonates were given a standardized defensive behavior test at 1 and/or 20 days of age. Thamnophis sirtalis and Thamnophis melanogaster showed a significant increase in both striking and fleeing from a threatening stimulus. Thamnophis butleri was not reactive in terms of striking at either age but did flee frequently at both ages. Thamnophis radix showed low rates of striking and high rates of fleeing; only fleeing increased significantly between the two tests. Nerodia rhombifer exhibited moderate rates of both striking and fleeing at both ages with no developmental effects. Subsets of most of these species tested at 40 or 60 days of age found no further developmental changes.

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