4 Works

Data from: Low-quality birds do not display high-quality signals: the cysteine-pheomelanin mechanism of honesty

Ismael Galván, Kazumasa Wakamatsu, Pablo R. Camarero, Rafael Mateo & Carlos Alonso-Alvarez
The mechanisms that make that the costs of producing high-quality signals are unaffordable to low-quality signalers are a current issue in animal communication. The size of the melanin-based bib of male house sparrows Passer domesticus honestly signals quality. We induced the development of new bibs while treating males with buthionine-sulfoximine (BSO), a substance that depletes the levels of the antioxidant glutathione and the amino acid cysteine, two elements that switch melanogenesis from eumelanin to pheomelanin....

Data from: Individual genetic diversity and probability of infection by avian malaria parasites in blue tits (Cyanistes caeruleus)

Esperanza S. Ferrer, Vicente García-Navas, Juan Jose Sanz & Joaquin Ortego
Understanding the importance of host genetic diversity for coping with parasites and infectious diseases is a long-standing goal in evolutionary biology. Here, we study the association between probability of infection by avian malaria (Plasmodium relictum) and individual genetic diversity in three blue tit (Cyanistes caeruleus) populations that strongly differ in prevalence of this parasite. For this purpose, we screened avian malaria infections and genotyped 789 blue tits across 26 microsatellite markers. We used two different...

Data from: The role of immigration and local adaptation on fine-scale genotypic and phenotypic population divergence in a less mobile passerine

Vicente García-Navas, Esperanza S. Ferrer, Juan José Sanz & Joaquín Ortego
Dispersal and local patterns of adaptation play a major role on the ecological and evolutionary trajectory of natural populations. In this study, we employ a combination of genetic (25 microsatellite markers) and field-based information (seven study years) to analyse the impact of immigration and local patterns of adaptation in two nearby (< 7 km) blue tit (Cyanistes caeruleus) populations. We used genetic assignment analyses to identify immigrant individuals and found that dispersal rate is female-biased...

Data from: Habitat segregation and ecological character displacement in cryptic African malaria mosquitoes

Billy Tene Fossog, Diego Ayala, Pelayo Acevedo, Pierre Kengne, Ignacio Ngomo Abeso Mebuy, Boris Makanga, Julie Magnus, Parfait Awono-Ambene, Flobert Njiokou, Marco Pombi, Christophe Antonio-Nkondjio, Christophe Paupy, Nora J. Besansky & Carlo Costantini
Understanding how divergent selection generates adaptive phenotypic and population diversification provides a mechanistic explanation of speciation in recently separated species pairs. Toward this goal, we sought ecological gradients of divergence between the cryptic malaria vectors Anopheles coluzzii and An. gambiae, and then looked for a physiological trait that may underlie such divergence. Using a large set of occurrence records and eco-geographical information, we built a distribution model to predict the predominance of the two species...

Registration Year

  • 2014
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Resource Types

  • Dataset
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Affiliations

  • Institute for Game and Wildlife Research
    4
  • Museo Nacional de Ciencias Naturales
    3
  • University of Castile-La Mancha
    2
  • Estación Biológica de Doñana
    1
  • University of Notre Dame
    1
  • Institut de Recherche pour le Développement
    1
  • Institut de Recherche pour le Développement
    1
  • Centre International de Recherches Médicales de Franceville
    1
  • Université de Yaoundé I
    1
  • National University of Equatorial Guinea
    1