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RESEARCH PRODUCT
Predator-induced Contemporary Evolution, Phenotypic Plasticity, and the Evolution of Reaction Norms in Guppies
David N. ReznickAndrew P. HendrySwanne P. Gordonsubject
0106 biological sciences0301 basic medicineLitter (animal)education.field_of_studyPhenotypic plasticityOffspringPopulationAquatic ScienceBiologyPlasticity010603 evolutionary biology01 natural sciencesPredation03 medical and health sciences030104 developmental biologyEvolutionary biologyAnimal Science and ZoologyeducationPredatorEcology Evolution Behavior and SystematicsLocal adaptationdescription
An increasingly large number of studies have demonstrated the ability of populations to undergo contemporary or rapid evolution. Little explored in this regard is the role of phenotypic plasticity, although it can influence eco-evolutionary dynamics and hence evolutionary rates. Here we quantify the evolution of life history and plasticity in Trinidadian guppies transplanted from high to novel low predation environments. Common-garden results show that after only nine years, or 13–27 generations, the introduced guppies have diverged from their ancestral population in both litter size and offspring weight and in the plastic response of both traits to food availability. Given these findings, it is clear that local adaptation includes both changes in mean traits and changes in plasticity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-01 | Copeia |