Description Usage Format Source References Examples

Objects `equ`

and `sim`

contain the results of the `niche.equivalency.test`

and the `bg.similarity.test`

(Warren et al. 2008) for *Oxalis enneaphylla* and *O. laciniata* from section *Palmatifoliae*.

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A list containing five elements:

- method
Name of the test.

- species
Names of the two species compared.

- statistic
Test statistics D and I of niche overlap based on Schoeners D and modified Hellinger distances.

- p.value
p-values for the test statistics (if

`method = "niche equivalency test"`

).- null
Formulation of the null hypothesis.

- null.distribution
Null distributions of D and I derived from randomization (if

`method = "niche equivalency test"`

).- ci.x.randomY
Confidence intervals based on null distributions (if

`method = "background similarity test"`

).- ci.y.randomX
Confidence intervals based on null distributions (if

`method = "background similarity test"`

).- nd.x.randomY
Null distributions of D and I derived from randomization (if

`method = "background similarity test"`

).- nd.y.randomX
Null distributions of D and I derived from randomization (if

`method = "background similarity test"`

).

C. Heibl, unpublished data.

Warren, D., R.E. Glor, & M. Turelli. 2008. Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. *Evolution*. **62**: 2868-2883.

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```
Loading required package: ape
Loading required package: raster
Loading required package: sp
Attaching package: 'raster'
The following objects are masked from 'package:ape':
rotate, zoom
```

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