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Article
Els Atema, Auteur ; Ellis Mulder, Auteur ; Hannah L. Dugdale, Auteur ; Michael Briga, Auteur ; Arie J. van Noordwijk, Auteur ; Simon Verhulst, AuteurTelomere length predicts survival in birds, and many stressors that presumably reduce fitness have also been linked to telomere length. The response to selection of telomere length will be largely determined by the heritability of this trait; ho[...]
Article
Els Atema, Auteur ; Kees van Oers, Auteur ; Simon Verhulst, AuteurEstimating the number of genome copies in a tissue sample can serve various purposes. For example, such an estimate serves as a scaling variable when measuring telomeres with quantitative PCR. We describe the primer development and evaluation fo[...]
Article
Emma L. B. Barrett, Auteur ; Winifred Boner, Auteur ; Ellis Mulder, Auteur ; Pat Monaghan, Auteur ; Simon Verhulst, Auteur ; David S. Richardson, AuteurBird populations provide excellent systems to investigate variation in longevity in the wild since individuals can often be monitored over their lifetime. A number of recent studies suggest that the dynamics of protective telomere chromosome cap[...]
Article
Martijn Van De Pol, Auteur ; Kees Oosterbeek, Auteur ; Anne L. Rutten, Auteur ; Bruno J. Ens, Auteur ; Joost M. Tinbergen, Auteur ; Simon Verhulst, AuteurMolecular sexing of birds has been possible for over a decade, but for practical reasons many studies still use biometric data for sex discrimination. In some species, the sexes are easy to distinguish but sexual dimorphism is often more subtle,[...]
Article
Sandra Bouwhuis, Auteur ; Anne Charmantier, Auteur ; Simon Verhulst, Auteur ; Ben C. Sheldon, AuteurP>1. Longitudinal studies of various vertebrate populations have recently demonstrated senescent declines in reproductive performance and/or survival probability with age to be almost ubiquitous in nature. Little is known, however, about the ext[...]
Article
Greet De Coster, Auteur ; Liesbeth de Neve, Auteur ; Simon Verhulst, Auteur ; Luc Lens, AuteurMothers can adjust the phenotype of their offspring to the local environment through a modification of their egg investment and/or nestling provisioning. However, offspring health may be severely impaired if the conditions experienced by nestlin[...]
Article
Popko Wiersma, Auteur ; H. Martijn Salomons, Auteur ; Simon Verhulst, Auteur
Article
Martijn Van De Pol, Auteur ; Bruno J. Ens, Auteur ; Kees Oosterbeek, Auteur ; Lyanne Brouwer, Auteur ; Simon Verhulst, Auteur ; Joost M. Tinbergen, Auteur ; Anne L. Rutten, Auteur ; Martin de Jong, AuteurEurasian Oystercatchers Haematopus ostralegus ostralegus are a classic example of individual feeding specialization. Feeding specialization causes morphological differentiation in Oystercatchers' bill shapes due to varying degrees of abrasion as[...]
Article
Jan B. Hulscher, Auteur ; Simon Verhulst, AuteurDans Limosa (76(1) 2003)Annual mean breeding density of Oyster-catchers in 1966-2000 was calculated from counts in a large sample of agricultural sites distributed throughout Friesland and compared with the development of a smaller population on a 28 ha of grassland on[...]
Article
Sandra Bouwhuis, Auteur ; Arie J. van Noordwijk, Auteur ; Ben C. Sheldon, Auteur ; Simon Verhulst, Auteur ; Marcel E. Visser, AuteurThe process of ageing was long thought to be too infrequent to affect life-histories in natural populations. Long-term studies have, however, recently demonstrated ageing to be ubiquitous even in the wild, although confounding factors, such as e[...]
