Modelling dispersal: an eco-evolutionary framework incorporating emigration, movement, settlement behaviour and the multiple costs involved

Travis, Justin M. J., Mustin, Karen, Barton, Kamil A., Benton, Tim G., Clobert, Jean, Delgado, Maria M., Dytham, Calvin, Hovestadt, Thomas, Palmer, Stephen C. F., Van Dyck, Hans and Bonte, Dries (2012) Modelling dispersal: an eco-evolutionary framework incorporating emigration, movement, settlement behaviour and the multiple costs involved. Methods in Ecology and Evolution, 3 4: 628-641. doi:10.1111/j.2041-210X.2012.00193.x


Author Travis, Justin M. J.
Mustin, Karen
Barton, Kamil A.
Benton, Tim G.
Clobert, Jean
Delgado, Maria M.
Dytham, Calvin
Hovestadt, Thomas
Palmer, Stephen C. F.
Van Dyck, Hans
Bonte, Dries
Title Modelling dispersal: an eco-evolutionary framework incorporating emigration, movement, settlement behaviour and the multiple costs involved
Journal name Methods in Ecology and Evolution   Check publisher's open access policy
ISSN 2041-210X
Publication date 2012
Sub-type Article (original research)
DOI 10.1111/j.2041-210X.2012.00193.x
Open Access Status
Volume 3
Issue 4
Start page 628
End page 641
Total pages 14
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell
Language eng
Abstract 1. Understanding the causes and consequences of dispersal remains a central topic in ecology and evolution. However, a mismatch exists between our empirical understanding of the complexity of dispersal and our representation of dispersal in models. While the empirical literature is replete with examples of condition dependence at the emigration, movement and settlement phases, models rarely incorporate realism or complexity to this degree. Nor do models often include the different costs associated with dispersal, which can themselves be linked to one or more of the three key phases. 2. Here, we propose that by explicitly accounting for emigration, movement and settlement (and the multiple costs associated with each) we can substantially improve our understanding of both the dispersal process itself and how dispersal traits trade off against other life-history characteristics. We explore some of these issues conceptually, before presenting illustrative results gained from a flexible individual-based model which incorporates considerable dispersal complexity. 3. These results emphasise the nonlinear interplay between the different dispersal stages. For example, we find that investment in movement ability (at a cost to fecundity) depends upon the propensity to emigrate (and vice versa). However, owing to selection acting at the metapopulation level as well as at the individual level, the relationship between the two is not straightforward. Importantly, the shape of the trade-off between movement ability and reproductive potential can strongly influence the joint evolution of dispersal parameters controlling the degree of investment in safer movement, the probability of emigration and the straightness of movement. 4. Our results highlight that the joint evolution of dispersal characteristics can have major implications for spatial population dynamics and we argue that, in addition to increasing our fundamental biological understanding, a new generation of dispersal modelling, which exploits recent empirical advances, can substantially improve our ability to predict and manage the response of species to environmental change. © 2012 The Authors. Methods in Ecology and Evolution,
Keyword Evolutionary biology
Life-history
Migration
Modelling
Population ecology
Trade off
Transition
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 48 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 51 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 20 May 2014, 13:37:31 EST by System User on behalf of School of Biological Sciences