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Stress response during development predicts fitness in a wild, long-lived vertebrate

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dc.creator Blas, Julio
dc.creator Bortolotti, Gary R.
dc.creator Tella, José Luis
dc.creator Baos, Raquel
dc.creator Marchant, Tracy A.
dc.date 2008-01-25T13:34:39Z
dc.date 2008-01-25T13:34:39Z
dc.date 2007-05-15
dc.date.accessioned 2017-01-31T00:59:46Z
dc.date.available 2017-01-31T00:59:46Z
dc.identifier Proc Natl Acad Sci USA. 2007 May 22; 104(21): 8880–8884
dc.identifier 1091-6490
dc.identifier http://hdl.handle.net/10261/2740
dc.identifier 10.1073/pnas.0700232104
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2740
dc.description 5 pages.-- Open-access paper at PNAS website or via NIH-PubMed Central, PMCID: PMC1660487.
dc.description Short-term elevation of circulating glucocorticosteroids (GCs) in vertebrates facilitates the adoption of a distinct emergency life history state, which allows individuals to cope with perturbations and recover homeostasis at the expense of temporarily suppressing nonessential activities. Although GC responses are viewed as a major evolutionary mechanism to maximize fitness through stress management, phenotypic variability exists within animal populations, and it remains unclear whether interindividual differences in stress physiology can explain variance in unequivocal components of fitness. We show that the magnitude of the adrenocortical response to a standardized perturbation during development is negatively related to survival and recruitment in a wild population of long lived birds. Our results provide empirical evidence for a link between stress response, not exposure to stressors, and fitness in a vertebrate under natural conditions. Recent studies suggest that variability in the adrenocortical response to stress may be maintained if high and low GC responders represent alternative coping strategies, with differential adaptive value depending on environmental conditions. Increased fitness among low GC responders, having a proactive personality, is predicted under elevated population density and availability of food resources, conditions that characterize our study population.
dc.description I3P Postdoctoral Contract (CSIC-European Community) to J.B.; Research Project B0S2002-00857 of the Spanish Ministerio de Ciencia y Tecnología; Junta de Andalucía; Natural Sciences and Engineering Research Council.
dc.description Peer reviewed
dc.format 546583 bytes
dc.format application/pdf
dc.language eng
dc.publisher National Academy of Sciences (U.S.)
dc.relation http://dx.doi.org/10.1073/pnas.0700232104
dc.rights openAccess
dc.subject Animal personality
dc.subject Stress
dc.subject Corticosterone
dc.subject Glucocorticosteroids
dc.subject Reproduction
dc.subject Survival
dc.subject Estrés
dc.subject Supervivencia
dc.subject Reproducción
dc.subject Corticosterona
dc.title Stress response during development predicts fitness in a wild, long-lived vertebrate
dc.type Artículo


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