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Comparative behaviour analysis of some colubrids with reference to suitability of captive bred snakes for reintroduction to natural habitat

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Zyczynski A., Nowak Z.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

2013

tom 52

A sample of newly hatched American colubrids, divided according to their level of domestication, understood herewith as the generation history in captivity, was tested in an open field test (OFT) for degree of activity and confidence in open terrain and in confrontation with individuals of such species as Pantherophis guttatus and Lampropeltis getula splendida as well as L. g. californiae, in order to compare their antagonistic and feeding behaviour reactions. The cluster comparison of defence reactions revealed no effect of domestication (many generation in captivity) in the face of potential danger. Even albino phase Kingsnakes, considered to be the form of this species most affected by captivity (altered genome), maintained their natural feeding response. The degree of activity in OFT conditions was seen to decrease with the snakes' age. Thus it was demonstrated that captive specimens bred in terrariums may be considered a gene bank for ex situ conservation strategy. However it is recommended that specimens as young as possible should be used in reintroduction to natural habitat, as these will respond most faithfully to the pressure of natural selection, based on their behavioural variation not supressed by apathy caused by captivity.

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Animal Science

1 Nowak Z.

1 Zyczynski A.

1 2013

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Comparative behaviour analysis of some colubrids with reference to suitability of captive bred snakes for reintroduction to natural habitat