moths {primer} | R Documentation |
Moth Species Richness
Description
Data set of moth species richness from Ohio and Indiana, USA.
Format
A data frame with 21 observations on the following 6 variables.
- region
a factor with levels
NCT
WAP
for the two collection regions.- site
a factor with levels associated with county names.
- area
a numeric vector for the area of each forest fragment
- spp
a numeric vector, the number of moth species.
- lat
a numeric vector; latitude
- long
a numeric vector; longitude
Source
Data proided graciously by Keith Summerville and Thomas Crist; see "A Primer of Ecology with R" for specific references.
References
K. S. Summerville and T. O. Crist. 2003. Determinants of lepidopteran community composition and species diversity in eastern deciduous forests: roles of season, ecoregion and patch size. Oikos, 100:134-148.
K. S. Summerville and T. O. Crist. 2004. Contrasting effects of habitat quantity and quality on moth communities in fragmented landscapes. Ecography, 27:3-12.
Examples
data(moths)
plot(spp ~ area, data=moths)