Dispersal stabilizes coupled ecological and evolutionary dynamics in a host-parasitoid system

Lucas A. Nell, Miriam Kishinevsky, Michael J. Bosch, Calvin Sinclair, Karuna Bhat, Nathan Ernst, Hamze Boulaleh, Kerry M. Oliver, Anthony R. Ives

Research output: Contribution to journalArticlepeer-review


When ecological and evolutionary dynamics occur on comparable timescales, persistence of the ensuing eco-evolutionary dynamics requires both ecological and evolutionary stability. This unites key questions in ecology and evolution: How do species coexist, and what maintains genetic variation in a population? In this work, we investigated a host-parasitoid system in which pea aphid hosts rapidly evolve resistance to Aphidius ervi parasitoids. Field data and mathematical simulations showed that heterogeneity in parasitoid dispersal can generate variation in parasitism-mediated selection on hosts through time and space. Experiments showed how evolutionary trade-offs plus moderate host dispersal across this selection mosaic cause host-parasitoid coexistence and maintenance of genetic variation in host resistance. Our results show how dispersal can stabilize both the ecological and evolutionary components of eco-evolutionary dynamics.

Original languageEnglish
Pages (from-to)1240-1244
Number of pages5
Issue number6688
StatePublished - 15 Mar 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2024 American Association for the Advancement of Science. All rights reserved.

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Dispersal stabilizes coupled ecological and evolutionary dynamics in a host-parasitoid system'. Together they form a unique fingerprint.

Cite this