faramea {BiodiversityR}

Faramea occidentalis abundance in Panama

Description

This dataset describes the abundance (number of trees with diameter at breast height equal or larger than 10 cm) of the tree species Faramea occidentalis as observed in a 1-ha quadrat survey from the Barro Colorada Island of Panama. For each quadrat, some environmental characteristics are also provided.

Usage

data(faramea)

Format

A data frame with 45 observations on the following 8 variables.

UTM.EW

a numeric vector

UTM.NS

a numeric vector

Precipitation

a numeric vector

Elevation

a numeric vector

Age

a numeric vector

Age.cat

a factor with levels c1 c2 c3

Geology

a factor with levels pT Tb Tbo Tc Tcm Tgo Tl

Faramea.occidentalis

a numeric vector

Details

Although the original survey documented tree species composition of all 1-ha subplots of larger (over 1 ha) sample plot, only the first (and sometimes the last) quadrats of the larger plots were included. This selection was made to avoid that larger sample plots dominated the analysis. This selection of sites is therefore different from the selection of the 50 1-ha quadrats of the largest sample plot of the same survey (BCI and BCI.env)

This dataset is the main dataset used for the examples provided in chapters 6 and 7 of the Tree Diversity Analysis manual (Kindt & Coe, 2005).

References

Pyke CR, Condit R, Aguilar S and Lao S. (2001). Floristic composition across a climatic gradient in a neotropical lowland forest. Journal of Vegetation Science 12: 553-566.

Condit, R, Pitman, N, Leigh, E.G., Chave, J., Terborgh, J., Foster, R.B., Nunez, P., Aguilar, S., Valencia, R., Villa, G., Muller-Landau, H.C., Losos, E. & Hubbell, S.P. (2002). Beta-diversity in tropical forest trees. Science 295: 666-669.

Kindt, R. & Coe, R. (2005) Tree diversity analysis: A manual and software for common statistical methods for ecological and biodiversity studies.

https://www.worldagroforestry.org/output/tree-diversity-analysis

Examples

data(faramea)