Adaptive branching in source-sink habitats
(2010) In Evolutionary Ecology 24(2). p.479-489- Abstract
- Evolution and ecological diversification in a heterogeneous environment is driven by an often complex interplay between local adaptation and dispersal between different habitat types. Heterogeneous environments also easily generate source-sink dynamics of populations coupled by dispersal. It follows that local adaptation and possible adaptive radiation almost by necessity involves adaptation to a (pseudo-)sink habitat, which is considered unlikely. We here study a model of 'parapatric branching' with this special focus on the spatial ecology of the process. We find that evolutionary branching can display a sequence of alternating adaptations to the source or the sink. In some circumstances a true sink can become a pseudo-sink through... (More)
- Evolution and ecological diversification in a heterogeneous environment is driven by an often complex interplay between local adaptation and dispersal between different habitat types. Heterogeneous environments also easily generate source-sink dynamics of populations coupled by dispersal. It follows that local adaptation and possible adaptive radiation almost by necessity involves adaptation to a (pseudo-)sink habitat, which is considered unlikely. We here study a model of 'parapatric branching' with this special focus on the spatial ecology of the process. We find that evolutionary branching can display a sequence of alternating adaptations to the source or the sink. In some circumstances a true sink can become a pseudo-sink through adaptation to the corresponding source habitat. The evolutionary endpoint is a spatially structured community consisting of two source populations with one corresponding sink or pseudo-sink each. Our results shed new light on the interpretation of extant source-sink systems and the process of parapatric branching. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1570804
- author
- Holmér, Jennie LU and Ripa, Jörgen LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Parapatric branching, Source-sink dynamics, Local adaptation, Dispersal, Migration
- in
- Evolutionary Ecology
- volume
- 24
- issue
- 2
- pages
- 479 - 489
- publisher
- Springer
- external identifiers
-
- wos:000274109600015
- scopus:77952746049
- ISSN
- 1573-8477
- DOI
- 10.1007/s10682-009-9320-6
- language
- English
- LU publication?
- yes
- id
- 8c6b01b6-d88b-4d2a-b566-f85fbddc6475 (old id 1570804)
- date added to LUP
- 2016-04-01 12:58:30
- date last changed
- 2022-01-27 08:34:57
@article{8c6b01b6-d88b-4d2a-b566-f85fbddc6475, abstract = {{Evolution and ecological diversification in a heterogeneous environment is driven by an often complex interplay between local adaptation and dispersal between different habitat types. Heterogeneous environments also easily generate source-sink dynamics of populations coupled by dispersal. It follows that local adaptation and possible adaptive radiation almost by necessity involves adaptation to a (pseudo-)sink habitat, which is considered unlikely. We here study a model of 'parapatric branching' with this special focus on the spatial ecology of the process. We find that evolutionary branching can display a sequence of alternating adaptations to the source or the sink. In some circumstances a true sink can become a pseudo-sink through adaptation to the corresponding source habitat. The evolutionary endpoint is a spatially structured community consisting of two source populations with one corresponding sink or pseudo-sink each. Our results shed new light on the interpretation of extant source-sink systems and the process of parapatric branching.}}, author = {{Holmér, Jennie and Ripa, Jörgen}}, issn = {{1573-8477}}, keywords = {{Parapatric branching; Source-sink dynamics; Local adaptation; Dispersal; Migration}}, language = {{eng}}, number = {{2}}, pages = {{479--489}}, publisher = {{Springer}}, series = {{Evolutionary Ecology}}, title = {{Adaptive branching in source-sink habitats}}, url = {{http://dx.doi.org/10.1007/s10682-009-9320-6}}, doi = {{10.1007/s10682-009-9320-6}}, volume = {{24}}, year = {{2010}}, }