Cristin-prosjekt-ID: 302942
Sist endret: 14. januar 2015 13:29
Cristin-prosjekt-ID: 302942
Sist endret: 14. januar 2015 13:29
Prosjekt

Signal evolution - adaptation and constraint

prosjektleder

Glenn-Peter Sætre
ved Biologisk institutt CEES ved Universitetet i Oslo

prosjekteier / koordinerende forskningsansvarlig enhet

  • Universitetet i Oslo

Finansiering

  • Norges forskningsråd

Tidsramme

Avsluttet
Start: 1. januar 2006 Slutt: 31. desember 2009

Beskrivelse Beskrivelse

Tittel

Signal evolution - adaptation and constraint

Vitenskapelig sammendrag

A central challenge in evolutionary biology is to understand what determines the reliability and flexbility of animal signals. We investigate signal evolution and signal discrimination in two contexts, mate choice and mimicry, with focus on how adaptation is affected by learning, plasticity, variability, and evolvability. In each project we will use a mixture of theoretical and empirical methods. In one part of the project we ask how females should search for males in a hybrid zone, where different male sexual traits convey conflicting information about species identity and mate quality. The empirical setup on flycatchers allows for very detailed data to be recorded about the mate-search strategy used by each female. In another part of the project, we study optimal attack strategies for predators foraging on a Batesian mimic-model complex, using both optimally theory and learning experiments on great tits. Game-theoretical models will be developed to investigate aspects of mimicry and regocnition in avian brood parasitism. In each system, we study how learning affects discrimination and decision-making, as well as the interaction between learned and innate components of discrimination. In the mate-search context, we study how females update their preferences during a search. Models will be developed to investigate whether learning and plasticity facilitates or buffers evolution, including whether imprinting facilitates reinforcement of mate preferences in hybrid zones. Finally, we will study the role of genetic architecture and evolvability (capacity to evolve) in coevolutionary arms races, as exemplified by the coevolution of a Batesian mimic and its unpalatable model species. To this end we will apply a recently developed populatin-genetical model framework to study the evolution of evolvability and the effests of pleiotropy and epistasis on evolvability

prosjektdeltakere

prosjektleder
Aktiv cristin-person

Glenn-Peter Sætre

  • Tilknyttet:
    Prosjektleder
    ved Biologisk institutt CEES ved Universitetet i Oslo
Aktiv cristin-person

Thomas F Hansen

  • Tilknyttet:
    Prosjektdeltaker
    ved Biologisk institutt CEES ved Universitetet i Oslo
Aktiv cristin-person

Øistein Haugsten Holen

  • Tilknyttet:
    Prosjektdeltaker
    ved Centre for Ecological and Evolutionary Synthesis ved Universitetet i Oslo
Inaktiv cristin-person

Thomas Borge

  • Tilknyttet:
    Prosjektdeltaker
    ved Universitetet i Oslo
Aktiv cristin-person

Stein Are Sæther

  • Tilknyttet:
    Prosjektdeltaker
    ved Centre for Ecological and Evolutionary Synthesis ved Universitetet i Oslo
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