Authors: JENOUVRIER, STEPHANIE¹; THIBAULT, JEAN-CLAUDE²; VIALLEFONT, ANNE³; VIDAL, PATRICK⁴; RISTOW, DIETRICH⁵; MOUGIN, JEAN-LOUIS⁶; BRICHETTI, PIERANDREA⁷; BORG, JOHN J.⁸; BRETAGNOLLE, VINCENT¹

Source: Global Change Biology, Volume 15, Number 1, January 2009 , pp. 268-279(12)

Publisher: Wiley-Blackwell

Abstract:

To predict the impact of climate change over the whole species distribution range, comparison of adult survival variations over large spatial scale is of primary concern for long-lived species populations that are particularly susceptible to decline if adult survival is reduced. In this study, we estimated and compared adult survival rates between 1989 and 1997 of six populations of Cory's shearwater (Calonectris diomedea) spread across 4600 km using capture-recapture models. We showed that mean annual adult survival rates are different among populations along a longitudinal gradient and between sexes. Variation in adult survival is synchronized among populations, with three distinct groups: (1) both females and males of Corsica, Tremiti, and Selvagem (annual survival range 0.88-0.96); (2) both females and males of Frioul and females from Crete (0.82-0.92); and (3) both females and males of Malta and males from Crete (0.74-0.88). The total variation accounted for by the common pattern of variation is on average 71%, suggesting strong environmental forcing. At least 61% of the variation in survival is explained by the Southern Oscillation Index fluctuations. We suggested that Atlantic hurricanes and storms during La Niña years may increase adult mortality for Cory's shearwater during winter months. For long-lived seabird species, variation in adult survival is buffered against environmental variability, although extreme climate conditions such as storms significantly affect adult survival. The effect of climate at large spatial scales on adult survival during the nonbreeding period may lead to synchronization of variation in adult survival over the species' range and has large effects on the meta-population trends. One can thus worry about the future of such long-lived seabirds species under the predictions of higher frequency of extreme large-scale climatic events.

Keywords: adult survival; capture-recapture models; climate; Cory's shearwater; Southern Oscillation; synchrony

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1365-2486.2008.01715.x

Affiliations: 1: Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique, F-79360 Villiers en Bois, France, 2: Muséum National d'Histoire Naturelle, Département Systématique et Evolution, 57 Rue Cuvier, F-75231 Paris, France, 3: Laboratoire de Biométrie et Biologie Évolutive, Université Lyon 1, 69622 Villeurbanne, France, 4: Parc Maritime des Iles du Frioul, CEEP, Sémaphore de Pomègues, Le Frioul, 13 001 Marseille, France, 5: Pappelstrasse 35, D-8579 Neubiberg, Germany, 6: Laboratoire de Zoologie (Mammifères et Oiseaux), 55 Rue Buffon, F-75005 Paris, France, 7: Centro Italiano Studi Ornitologici, Via V. Veneto 30, 25029 Verolavecchia, Italy, 8: National Museum of Natural History, Vilhena Palace, Medina, Malta

Publication date: 2009-01-01

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• In this Subject: Biology ,  Meteorology & Climatology
• By this author: JENOUVRIER, STEPHANIE ;  THIBAULT, JEAN-CLAUDE ;  VIALLEFONT, ANNE ;  VIDAL, PATRICK ;  RISTOW, DIETRICH ;  MOUGIN, JEAN-LOUIS ;  BRICHETTI, PIERANDREA ;  BORG, JOHN J. ;  BRETAGNOLLE, VINCENT

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