Environmental variation in ecological communities and inferences from single-species data
Författare
Summary, in English
Data are often collected for a single species within an ecological community, so quantitative tools for drawing inferences about the unobserved portions of the community from single-species data are valuable. In this paper, we present and examine a method for estimating community dimension (the number of strongly interacting species or groups) from time series data on a single species. The dynamics of one species can be strongly affected by environmental stochasticity acting not only on itself, but also on other species with which it interacts. By fully accounting for the effects of stochasticity on populations embedded in a community, our approach gives better estimates of community dimension than commonly used methods. Using a combination of time series data and simulations, we show that failing to properly account for stochasticity when attempting to relate population dynamics to attributes of the community can give misleading information about community dimension.
Publiceringsår
2009
Språk
Engelska
Sidor
1268-1278
Publikation/Tidskrift/Serie
Ecology
Volym
90
Issue
5
Dokumenttyp
Artikel i tidskrift
Förlag
Ecological Society of America
Ämne
- Biological Sciences
Nyckelord
- time series analysis
- dynamics
- population
- environmental stochasticity
- ARMA
- community dimension
Status
Published
Forskningsgrupp
- Theoretical Population Ecology and Evolution Group
ISBN/ISSN/Övrigt
- ISSN: 0012-9658