ifri


This data set contains information on the number of stems (individuals) and basal areas for 34 vegetation plots inventoried in February 1997 in Lothlorien forest, 37 vegetation plots inventoried in February 1996 in May Creek Forest and 36 vegetation plots inventoried in May 1995 in Yellowwood State Forest. All three sites are in Indiana, USA. Data were gathered through IFRI inventory protocols to record any tree, palm and woody climber with diameter at breast height greater than or equal to 10 cm in 10-m radius circular plots; only tree species data were kept in the example data sets (IFRI research instruments and IFRI manual section P: Forest Plot Form, section D1: Tree, Palm and Woody Climber Information). 


datasets

Graphical User Interface (via the R-Commander) and utility functions (often based on the vegan package) for statistical analysis of biodiversity and ecological communities, including species accumulation curves, diversity indices, Renyi profiles, GLMs for analysis of species abundance and presence-absence, distance matrices, Mantel tests, and cluster, constrained and unconstrained ordination analysis. A book on biodiversity and community ecology analysis is available for free download from the website. In 2012, methods for (ensemble) suitability modelling and mapping were expanded in the package.

Roeland Kindt

BiodiversityR

Package for Community Ecology and Suitability Analysis

ifri function

A data frame with 486 observations on the following 5 variables.
  <dl> </dl> 

Format

IFRI (2014) Data from the International Forestry Resources and Institutions (IFRI) research network. <a href="http://www.ifriresearch.net">http://www.ifriresearch.net</a>

Source

IFRI (2014) Data from the International Forestry Resources and Institutions (IFRI) research network. <a href = 'http://www.ifriresearch.net'>http://www.ifriresearch.net</a>

ifri: Example data from the International Forestry Resources and Institutions (IFRI) research network

Description

Usage

Arguments

Format

Source

Examples