Dispersal among habitats varying in fitness: reciprocating migration through ideal habitat selection
(2004) In Oikos 107(3). p.559-575- Abstract
- Current evolutionary models of dispersal set the ends of a continuum where the number of individuals emigrating from a habitat either equals the number of individuals immigrating (balanced dispersal) or where emigrants flow from a source habitat to a corresponding sink. Theories of habitat selection suggest a more sophisticated conditional strategy where individuals disperse from habitats where they have the greatest impact on fitness to habitats where their per capita impact is lower. Asymmetries between periods of population growth and decline result in a reciprocating dispersal strategy where the direction of migration is reversed as populations wax and wane. Thus, for example, if net migration of individuals flows from high- to... (More)
- Current evolutionary models of dispersal set the ends of a continuum where the number of individuals emigrating from a habitat either equals the number of individuals immigrating (balanced dispersal) or where emigrants flow from a source habitat to a corresponding sink. Theories of habitat selection suggest a more sophisticated conditional strategy where individuals disperse from habitats where they have the greatest impact on fitness to habitats where their per capita impact is lower. Asymmetries between periods of population growth and decline result in a reciprocating dispersal strategy where the direction of migration is reversed as populations wax and wane. Thus, for example, if net migration of individuals flows from high- to low-density habitats during periods of population growth, net migration will flow in the opposite direction during population decline. Stochastic simulations and analytical models of reciprocating dispersal demonstrate that fitness, carrying capacity, stochastic dynamics, and interference from dominants interact to determine whether dispersal is balanced between habitats, or whether one habitat or the other acts as a net donor of dispersing individuals. While the pattern of dispersal may vary, each is consistent with an underlying strategy of density-dependent habitat selection. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/135380
- author
- Morris, D W ; Diffendorfer, J E and Lundberg, Per LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Oikos
- volume
- 107
- issue
- 3
- pages
- 559 - 575
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000225266600012
- scopus:8744256531
- ISSN
- 1600-0706
- DOI
- 10.1111/j.0030-1299.2004.12894.x
- language
- English
- LU publication?
- yes
- id
- 0979af6b-bb10-452d-87f6-e2c726269e0f (old id 135380)
- date added to LUP
- 2016-04-01 12:21:59
- date last changed
- 2022-02-11 06:04:11
@article{0979af6b-bb10-452d-87f6-e2c726269e0f,
abstract = {{Current evolutionary models of dispersal set the ends of a continuum where the number of individuals emigrating from a habitat either equals the number of individuals immigrating (balanced dispersal) or where emigrants flow from a source habitat to a corresponding sink. Theories of habitat selection suggest a more sophisticated conditional strategy where individuals disperse from habitats where they have the greatest impact on fitness to habitats where their per capita impact is lower. Asymmetries between periods of population growth and decline result in a reciprocating dispersal strategy where the direction of migration is reversed as populations wax and wane. Thus, for example, if net migration of individuals flows from high- to low-density habitats during periods of population growth, net migration will flow in the opposite direction during population decline. Stochastic simulations and analytical models of reciprocating dispersal demonstrate that fitness, carrying capacity, stochastic dynamics, and interference from dominants interact to determine whether dispersal is balanced between habitats, or whether one habitat or the other acts as a net donor of dispersing individuals. While the pattern of dispersal may vary, each is consistent with an underlying strategy of density-dependent habitat selection.}},
author = {{Morris, D W and Diffendorfer, J E and Lundberg, Per}},
issn = {{1600-0706}},
language = {{eng}},
number = {{3}},
pages = {{559--575}},
publisher = {{Wiley-Blackwell}},
series = {{Oikos}},
title = {{Dispersal among habitats varying in fitness: reciprocating migration through ideal habitat selection}},
url = {{https://lup.lub.lu.se/search/files/2893901/624539.pdf}},
doi = {{10.1111/j.0030-1299.2004.12894.x}},
volume = {{107}},
year = {{2004}},
}