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Tail loss, body condition and swimming performances in tiger snakes, Notechis ater occidentalis

Identifieur interne : 00A221 ( Main/Exploration ); précédent : 00A220; suivant : 00A222

Tail loss, body condition and swimming performances in tiger snakes, Notechis ater occidentalis

Auteurs : Fabien Aubret [France, Australie] ; Xavier Bonnet [France] ; Stéphanie Maumelat [Australie]

Source :

RBID : ISTEX:8339E3B5F044E8A72BD6FAFEC58BB5070291F84F

English descriptors

Abstract

In limbless tetrapods such as snakes, propulsive forces are generated by lateral undulations of the body and of the tail. In a large population of tiger snakes from Western Australia, tail loss was extremely common (58% of the individuals) and often very severe (more than two‐thirds of the tail was missing in 14% of the cases, and in some instances, the tail was totally lost). Tail loss was not however correlated with body size, mass or body condition of wild individuals, and hence did not influence their abilities to acquire resources. These large venomous snakes exhibit marked aquatic habits. Locomotor tests in controlled conditions revealed that tail loss had a significant negative influence on burst swimming performances. However, no effect was found on routine swimming speed and total distance travelled over 5 min. These results suggest that a long and slender tail, although important for maximal speed, is not necessarily relevant for the locomotor abilities required for successful hunting. Tail‐damaged individuals outnumbered intact snakes, suggesting that tail loss did not severely compromise survival. Overall, in this species, a slight deterioration of maximal speed due to severe tail loss probably has a low (undetectable) ecological impact, at least for adults. J. Exp. Zool. 303A:894–903, 2005. © 2005 Wiley‐Liss, Inc.

Url:
DOI: 10.1002/jez.a.218


Affiliations:


Links toward previous steps (curation, corpus...)


Le document en format XML

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<term>Biol</term>
<term>Body condition</term>
<term>Body mass</term>
<term>Body reserves</term>
<term>Body size</term>
<term>Bonnet</term>
<term>Bradshaw</term>
<term>Burst speed</term>
<term>Carnac island</term>
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<term>Chicago press</term>
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<term>Ecological morphology</term>
<term>Evol biol shine</term>
<term>Evolutionary biology</term>
<term>Extreme tail loss</term>
<term>Fabien aubret</term>
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<term>Foraging activity</term>
<term>Foraging success</term>
<term>Gans</term>
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<term>Garter snakes</term>
<term>Growth rate</term>
<term>Inactive portion</term>
<term>Intact snakes</term>
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<term>Propulsive forces</term>
<term>Propulsive structures</term>
<term>Relative tail length</term>
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<term>Sample size</term>
<term>Several snakes</term>
<term>Shetty</term>
<term>Shine</term>
<term>Short tail</term>
<term>Similar results</term>
<term>Snake</term>
<term>Snake species</term>
<term>Strong tail loss</term>
<term>Study population</term>
<term>Survival rates</term>
<term>Tail</term>
<term>Tail integrity</term>
<term>Tail length</term>
<term>Tail loss</term>
<term>Tail loss severity</term>
<term>Tail morphology</term>
<term>Terrestrial locomotion</term>
<term>Terrestrial snakes</term>
<term>Tiger</term>
<term>Tiger snakes</term>
<term>Total distance</term>
<term>Vertebral number</term>
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<term>Zool</term>
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<term>Aquatic</term>
<term>Aquatic locomotion</term>
<term>Aubret</term>
<term>Bennett</term>
<term>Biol</term>
<term>Body condition</term>
<term>Body mass</term>
<term>Body reserves</term>
<term>Body size</term>
<term>Bonnet</term>
<term>Bradshaw</term>
<term>Burst speed</term>
<term>Carnac island</term>
<term>Centre biologiques</term>
<term>Chicago press</term>
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<term>Ecological morphology</term>
<term>Evol biol shine</term>
<term>Evolutionary biology</term>
<term>Extreme tail loss</term>
<term>Fabien aubret</term>
<term>Food intake</term>
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<term>Foraging activity</term>
<term>Foraging success</term>
<term>Gans</term>
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<term>Garter snakes</term>
<term>Growth rate</term>
<term>Inactive portion</term>
<term>Intact snakes</term>
<term>Jayne</term>
<term>Juvenile garter snakes</term>
<term>Large population</term>
<term>Large proportion</term>
<term>Laticauda colubrine</term>
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<term>Locomotor performance</term>
<term>Locomotor performances</term>
<term>Locomotory performance</term>
<term>Lourdais</term>
<term>Mainland populations</term>
<term>Many animal species</term>
<term>Many populations</term>
<term>Many snakes</term>
<term>Maximal speed</term>
<term>Morphological correlates</term>
<term>Morphology</term>
<term>Natural conditions</term>
<term>Natural population</term>
<term>Natural variations</term>
<term>Nonparametric tests</term>
<term>Notechis</term>
<term>Notechis ater occidentalis</term>
<term>Notechis scutatus</term>
<term>Power analysis</term>
<term>Predation</term>
<term>Propulsive</term>
<term>Propulsive forces</term>
<term>Propulsive structures</term>
<term>Relative tail length</term>
<term>Relative tail loss</term>
<term>Sample size</term>
<term>Several snakes</term>
<term>Shetty</term>
<term>Shine</term>
<term>Short tail</term>
<term>Similar results</term>
<term>Snake</term>
<term>Snake species</term>
<term>Strong tail loss</term>
<term>Study population</term>
<term>Survival rates</term>
<term>Tail</term>
<term>Tail integrity</term>
<term>Tail length</term>
<term>Tail loss</term>
<term>Tail loss severity</term>
<term>Tail morphology</term>
<term>Terrestrial locomotion</term>
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<term>Vertebral number</term>
<term>Vipera aspis</term>
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<front>
<div type="abstract" xml:lang="en">In limbless tetrapods such as snakes, propulsive forces are generated by lateral undulations of the body and of the tail. In a large population of tiger snakes from Western Australia, tail loss was extremely common (58% of the individuals) and often very severe (more than two‐thirds of the tail was missing in 14% of the cases, and in some instances, the tail was totally lost). Tail loss was not however correlated with body size, mass or body condition of wild individuals, and hence did not influence their abilities to acquire resources. These large venomous snakes exhibit marked aquatic habits. Locomotor tests in controlled conditions revealed that tail loss had a significant negative influence on burst swimming performances. However, no effect was found on routine swimming speed and total distance travelled over 5 min. These results suggest that a long and slender tail, although important for maximal speed, is not necessarily relevant for the locomotor abilities required for successful hunting. Tail‐damaged individuals outnumbered intact snakes, suggesting that tail loss did not severely compromise survival. Overall, in this species, a slight deterioration of maximal speed due to severe tail loss probably has a low (undetectable) ecological impact, at least for adults. J. Exp. Zool. 303A:894–903, 2005. © 2005 Wiley‐Liss, Inc.</div>
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<name sortKey="Bonnet, Xavier" sort="Bonnet, Xavier" uniqKey="Bonnet X" first="Xavier" last="Bonnet">Xavier Bonnet</name>
<name sortKey="Bonnet, Xavier" sort="Bonnet, Xavier" uniqKey="Bonnet X" first="Xavier" last="Bonnet">Xavier Bonnet</name>
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