Overcompensatory population dynamic responses to environmental stochasticity
Bull, James C. and Bonsall, Michael. (2008) Overcompensatory population dynamic responses to environmental stochasticity. Journal of Animal Ecology, Volume 77 (Number 6). pp. 1296-1305. ISSN 0021-8790Full text not available from this repository.
Official URL: http://dx.doi.org/10.1111/j.1365-2656.2008.01449.x
1. To quantify the interactions between density-dependent, population regulation and density-independent limitation, we studied the time-series dynamics of an experimental laboratory insect microcosm system in which both environmental noise and resource limitation were manipulated.
2. A hierarchical Bayesian state-space approach is presented through which it is feasible to capture all sources of uncertainty, including observation error to accurately quantify the density dependence operating on the dynamics.
3. The regulatory processes underpinning the dynamics of two different bruchid beetles (Callosobruchus maculatus and Callosobruchus chinensis) are principally determined by environmental conditions, with fluctuations in abundance explained in terms of changes in overcompensatory dynamics and stochastic processes.
4. A general, stochastic population model is developed to explore the link between abundance fluctuations and the interaction between density dependence and noise. Taking account of time-lags in population regulation can substantially increase predicted population fluctuations resulting from underlying noise processes.
|Item Type:||Journal Article|
|Subjects:||Q Science > QA Mathematics
Q Science > QH Natural history > QH301 Biology
Q Science > QL Zoology
|Divisions:||Faculty of Science > Life Sciences (2010- )|
|Library of Congress Subject Headings (LCSH):||Callosobruchus, Population biology, Population density, State-space methods, Stochastic analysis, Time-series analysis|
|Journal or Publication Title:||Journal of Animal Ecology|
|Publisher:||Wiley-Blackwell Publishing Ltd.|
|Official Date:||November 2008|
|Number of Pages:||10|
|Page Range:||pp. 1296-1305|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Royal Society (Great Britain), Natural Environment Research Council (Great Britain) (NERC)|
Allee, W.C. (1931) Animal Aggregations: A Study in General Sociology.
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