dataMacWarb


MacArthur's (1958) warbler data
This data matrix is from MacArthur's classic (1958) paper on the coexistence of 5 species of New England warbler. Each row of the data matrix is a different species of warbler, and each column is one of 16 different subregions of a coniferous tree. Each entry is the percentage of time that each species was observed foraging in a different subregion of the tree (see Figures 2-4 in MacArthur 1958). Zeroes indicate subregions of the tree in which a species was not recorded foraging.


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data

Given a site by species interaction matrix, users can make inferences about species interactions by performance hypothesis comparing test statistics against a null distribution. The current package provides algorithms and metrics for niche-overlap, body size ratios and species co-occurrence. Users can also integrate their own algorithms and metrics within these frameworks or completely novel null models. Detailed explanations about the underlying assumptions of null model analysis in ecology can be found at http://ecosimr.org.

Edmund Hart

EcoSimR

Null Model Analysis for Ecological Data

dataMacWarb function

MacArthur's (1958) warbler data
This data matrix is from MacArthur's classic (1958) paper on the coexistence of 5 species of New England warbler. Each row of the data matrix is a different species of warbler, and each column is one of 16 different subregions of a coniferous tree. Each entry is the percentage of time that each species was observed foraging in a different subregion of the tree (see Figures 2-4 in MacArthur 1958). Zeroes indicate subregions of the tree in which a species was not recorded foraging.

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