A1 Journal article (refereed)
Effects of environment and genotype on dispersal differ across departure, transfer and settlement in a butterfly metapopulation (2022)

DiLeo, M. F., Nonaka, E., Husby, A., & Saastamoinen, M. (2022). Effects of environment and genotype on dispersal differ across departure, transfer and settlement in a butterfly metapopulation. Proceedings of the Royal Society B : Biological Sciences, 289(1976), Article 20220322. https://doi.org/10.1098/rspb.2022.0322

JYU authors or editors

Publication details

All authors or editors: DiLeo, Michelle F.; Nonaka, Etsuko; Husby, Arild; Saastamoinen, Marjo

Journal or series: Proceedings of the Royal Society B : Biological Sciences

ISSN: 0962-8452

eISSN: 1471-2954

Publication year: 2022

Publication date: 08/06/2022

Volume: 289

Issue number: 1976

Article number: 20220322

Publisher: The Royal Society Publishing

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1098/rspb.2022.0322

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/81638


Active dispersal is driven by extrinsic and intrinsic factors at the three stages of departure, transfer and settlement. Most empirical studies capture only one stage of this complex process, and knowledge of how much can be generalized from one stage to another remains unknown. Here we use genetic assignment tests to reconstruct dispersal across 5 years and 232 habitat patches of a Glanville fritillary butterfly (Melitaea cinxia) metapopulation. We link individual dispersal events to weather, landscape structure, size and quality of habitat patches, and individual genotype to identify the factors that influence the three stages of dispersal and post-settlement survival. We found that nearly all tested factors strongly affected departure probabilities, but that the same factors explained very little variation in realized dispersal distances. Surprisingly, we found no effect of dispersal distance on post-settlement survival. Rather, survival was influenced by weather conditions, quality of the natal habitat patch, and a strong interaction between genotype and occupancy status of the settled habitat patch, with more mobile genotypes having higher survival as colonists rather than as immigrants. Our work highlights the multi-causality of dispersal and that some dispersal costs can only be understood by considering extrinsic and intrinsic factors and their interaction across the entire dispersal process.

Keywords: population ecology; distribution; spreading (process); genotype; Lepidoptera; Glanville fritillary

Free keywords: dispersal; genetic assignment tests; genotype-by-environment interactions; butterfly; patchquality; fitness

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2022

Preliminary JUFO rating: 3

Last updated on 2022-20-09 at 14:01