An eco-evolutionary feedback loop promoting diversity. Ecological diversification is common in complex landscapes composed of multiple ecosystems connected by dispersal (e.g., fish radiations across multiple lakes or bird radiations across island archipelagos). After colonization of a novel environment, local adaptation in life history results in stronger intraspecific competition, which, in the presence of ecological opportunity, induces disruptive selection. As a consequence, ecological diversification driven by niche specialization occurs, increasing phenotypic diversity within populations or species diversity in case barriers to gene flow evolve. In either case, functional diversity is enhanced, which, in turn, can positively influence dispersal and thereby the rate of colonization of novel environments. Although our model does not explicitly incorporate spatial structure, the evolutionary trajectories are assumed to begin from a colonization event, which is implicitly linked to dispersal across the landscape.
When colonizing a new habitat, organisms adapt to maximize their reproductive success via #LifeHistory #evolution. @ecoevodevolab.bsky.social @cbank.bsky.social show that life history evolution facilitates niche diversification across a range of theoretical models @plosbiology.org 🧪 plos.io/4p7YT0a