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Article
Angela Schmitz Ornes, Auteur ; Magdalena Wlodarz, Auteur
Article
Katja Rahn, Auteur ; Angela Schmitz Ornes, AuteurThe eggshell colouration among and within certain bird species is highly variable. Although many studies have addressed this variation, the reasons for it remain largely unclear. Consistent individual differences in egg colouration may improve t[...]
Article
Nina Seifert, Auteur ; Cosima Tegetmeyer, Auteur ; Angela Schmitz Ornes, AuteurKnowledge of a species’ ecological requirements is a prerequisite for effective conservation, particularly if the species is assumed to be declining due to modification of its primary habitats. Information about habitat suitability allows both t[...]
Article
Nina Seifert, Auteur ; Cosima Tegetmeyer, Auteur ; Angela Schmitz Ornes, AuteurKnowledge of a species’ ecological requirements is a prerequisite for effective conservation, particularly if the species is assumed to be declining due to modification of its primary habitats. Information about habitat suitability allows both t[...]
Article
Nina Seifert, Auteur ; Martin Haase, Auteur ; Steven L. Van Wilgenburg, Auteur ; Christian C. Voigt, Auteur ; Angela Schmitz Ornes, AuteurUnlike the annual bi-directional movements of over 200 bird species within the Palaearctic-Afrotropical region, irregular movements such as irruptive migration with a low degree of philopatry are reported for a variety of species depending on hi[...]
Article
Angela Schmitz Ornes, Auteur ; Andre Herbst, Auteur ; Andreas Spillner, Auteur ; Wolfgang Mewes, Auteur ; Moriz Rauch, AuteurSpottiness is an important component of the morphology of bird eggs and a number of methods have been developed for characterizing variation in spottiness. We developed a quantitative method for measuring and comparing eggs to determine if femal[...]
