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Synchronous dynamics and rates of extinction in spatially structured populations
Open accessAbstract
We explore extinction rates using a spatially arranged set of subpopulations obeying Ricker dynamics. The population system is subjected to dispersal of individuals among the subpopulations as well as to local and global disturbances. We observe a tight positive correlation between global extinction rate and the level of synchrony in dynamics among thesubpopulations. Global disturbances and to a lesser extent, migration, are capable of synchronizing the temporal dynamics of the subpopulations over a rather wide span of the population growth rate r: Local noise decreases synchrony, as does increasing distance among the subpopulations. Synchrony also levels off with increasing r: in the chaotic region, subpopulations almost invariably behave asynchronously. We conclude that it is asynchrony that reduces the probability of global extinctions, not chaos as such: chaos is a special case only. The relationship between global extinction rate, synchronous dynamics and population growth rate is robust to changes in dispersal rates and ranges.
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BROOK, B., SODHI, N., & BRADSHAW, C. (2008) · Trends in Ecology & Evolution · doi:10.1016/j.tree.2008.03.011 · Cited by 2,031
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Spatial Synchrony in Population Dynamics
Liebhold, A., Koenig, W. D., & Bjørnstad, O. N. (2004) · Annual Review of Ecology, Evolution, and Systematics · doi:10.1146/annurev.ecolsys.34.011802.132516 · Cited by 965
Lande, R., Engen, S., & Sæther, B. (1999) · The American Naturalist · doi:10.1086/303240 · Cited by 275
Evolution of dispersal strategies and dispersal syndromes in fragmented landscapes
Cote, J., Bestion, E., Jacob, S., Travis, J., Legrand, D., & Baguette, M. (2017) · Ecography · doi:10.1111/ecog.02538 · Cited by 257
Metadata
- Authors
- Heino, M., Kaitala, V., Ranta, E., & Lindström, J.
- Venue
- Proceedings of the Royal Society of London. Series B: Biological Sciences
- Publisher
- The Royal Society
- Published
- 1997-04-22
- Volume
- 264
- Issue
- 1381
- Pages
- 481-486
- ISSN
- 0080-4649 (ISSN-L)
- 0962-8452
- 1471-2954
- OpenAlex
- W2001553280
- Cited by
- 446
- References
- 20
- FWCI
- 9.66
- Type
- journal article
- Language
- en
- Open access
- green
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- Heino, M., Kaitala, V., Ranta, E., & Lindström, J. (1997). Synchronous dynamics and rates of extinction in spatially structured populations. Proceedings of the Royal Society of London. Series B: Biological Sciences. https://doi.org/10.1098/rspb.1997.0069
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