Impacts of a wildfire on the mortality rate and small-scale movements of a Hermann's tortoise Testudo hermanni hermanni population in southeastern France

Impacts of a wildfire on the mortality rate and small-scale movements of a Hermann's tortoise... Amphibia-Reptilia 32 (2011): 541-545 Short Notes Impacts of a wildfire on the mortality rate and small-scale movements of a Hermann’s tortoise Testudo hermanni hermanni population in southeastern France Thibaut Couturier 1,* , Marc Cheylan 1 , Emmanuelle Guérette 1,2 , Aurélien Besnard 1 Abstract. Because they have high longevity and a weak dispersal capacity, chelonians are known to be highly impacted by fire. We investigated the immediate demographic consequences of a wildfire occurring in 2009 on a population of Hermann’s tortoises Testudo hermanni in the Plaine des Maures in southeastern France using the multistate capture–recapture method. Over two years (2009 and 2010), 108 adult individuals were marked. Survival probability was higher in the unburned (0.99) than in the burned area (0.43). The inter-annual transition probability from the burned to the unburned area was high (0.72). These results show that fire affects survival by immediately killing individuals and by inducing small-scale movements from burned to unburned areas. Keywords : capture–recapture, chelonian, detection probabilities, displacement, fire impact, long-lived species, multistate modelling, survival. The area annually burned in the north Medi- terranean Region has greatly increased over the last few decades (Pausas and Keeley, 2009). Wildfires are particularly frequent in the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Impacts of a wildfire on the mortality rate and small-scale movements of a Hermann's tortoise Testudo hermanni hermanni population in southeastern France

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Publisher
BRILL
Copyright
© 2011 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
D.O.I.
10.1163/156853811X601627
Publisher site
See Article on Publisher Site

Abstract

Amphibia-Reptilia 32 (2011): 541-545 Short Notes Impacts of a wildfire on the mortality rate and small-scale movements of a Hermann’s tortoise Testudo hermanni hermanni population in southeastern France Thibaut Couturier 1,* , Marc Cheylan 1 , Emmanuelle Guérette 1,2 , Aurélien Besnard 1 Abstract. Because they have high longevity and a weak dispersal capacity, chelonians are known to be highly impacted by fire. We investigated the immediate demographic consequences of a wildfire occurring in 2009 on a population of Hermann’s tortoises Testudo hermanni in the Plaine des Maures in southeastern France using the multistate capture–recapture method. Over two years (2009 and 2010), 108 adult individuals were marked. Survival probability was higher in the unburned (0.99) than in the burned area (0.43). The inter-annual transition probability from the burned to the unburned area was high (0.72). These results show that fire affects survival by immediately killing individuals and by inducing small-scale movements from burned to unburned areas. Keywords : capture–recapture, chelonian, detection probabilities, displacement, fire impact, long-lived species, multistate modelling, survival. The area annually burned in the north Medi- terranean Region has greatly increased over the last few decades (Pausas and Keeley, 2009). Wildfires are particularly frequent in the

Journal

Amphibia-ReptiliaBrill

Published: Jan 1, 2011

Keywords: CAPTURE– LONG-LIVED SPECIES; RECAPTURE; SURVIVAL; DISPLACEMENT; MULTISTATE MODELLING; DETECTION PROBABILITIES; CHELONIAN; FIRE IMPACT

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