Seminario el viernes día 22, 12h, Salón de Actos del Museo Nacional de Ciencias Naturales:
Impartido por: Dr. Gabor Herczeg,Behavioural Ecology Group, Faculty of Science, Institute of Biology,EÖTVÖS LORÁND UNIVERSITY Budapest
Resumen/Abstract: "Nine-spined stickleback (Pungitius pungitius)
has a circumpolar distribution, and can successfully persist in a
bewildering array of habitats from coastal marine areas through large
lakes or rives systems to small isolated ponds. By comparing pond
populations (nine-spined stickleback is often the only fish species) to
lake and marine populations (nine-spined stickleback is a member of a
diverse fish community including predators and competitors), I could
study how sticklebacks adapted to varying levels of predation and
interspecific competition. In general, I found that a ‘pond ecomorph’
emerged in several geographically and genetically isolated ponds
throughout Fennoscandia. Sticklebacks in ponds evolved into aggressive
and bold giants with extended longevity, delayed maturation and reduced
or lost body armour. These results suggest that in the absence of
significant predation risk and interspecific competition, a phenotype
superior in intraspecific competition is favoured. In my talk, I will
first overview the basic patterns of population divergence in
fitness-related traits and in their phenotypic plasticity, and then
present the quantitative genetic and functional genomic background of
some key morphological, life-history and behavioural traits."
Si no podéis asistir, recordad que lo podéis seguir 'online' a través del siguiente enlace: http://www.cienciatk.csic.es/.
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