SEMINARIOS MNCN

Jueves 20 de septiembre, 12h.

Salón de Actos. Museo Nacional de Ciencias Naturales. Madrid.

This lecture will be held in English.

Título: Competitive interactions in tropical birds and their role in phenotypic evolution and community structure

Ponente: Dr. Alexander Kirschel , Oxford University & University of Cyprus

Resumen:

When related species come into contact they might character displace and coexist, they might converge and coexist, or they might exclude each other completely from their ranges. Much theoretical work has described how each of these outcomes could be predicted to occur. Yet, little work has examined when you might expect convergence versus divergence, and empirical evidence is lacking of examples comparing when related species might on some occasions coexist and others exclude each other. I show how two related species of tinkerbird coexist in Central and East Africa, facilitated by character displacement in their song and morphology, while in West Africa there is competitive and/or reproductive exclusion. I also describe the interaction between two further tinkerbird species that are largely excluded from one another’s ranges and relate those patterns to the molecular phylogeny. I then show an example of character convergence and discuss how it also facilitates coexistence in Amazonian antbirds.

Presentado por: Dr. Borja Milá.

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