Loyn: Forest bird densities in 56 forest patches in south-eastern...
In romunov/AED: Package Accompanying 'Mixed Effects Models and Extensions in Ecology with R'
Description
Usage
Format
Source
References
Description
This bird data was originally analysed in Loyn (1987), and again in Quinn
and Keough (2002). The aim of the study was to relate bird densities to
six habitat variables.
Usage
1
Format
A data frame with 56 observations of 8 variables:
- Site
ID number of forest patch
- ABUND
Density of forest birds in a forest patch (number of forest birds per count)
- AREA
Size of the forest patch in ha
- DIST
Distance to the nearest patch in meters
- LDIST
Distance to the nearest larger patch in meters
- ALT
Mean altitude of the patch in meters
- YR.ISOL
Year of isolation by clearance
- GRAZE
Index of stocking grazing intensity. An ordinal variable with
levels 1 (light) to 5 (intensive)
Source
Loyn RH (1987) Effects of patch area and habitat on bird abundances,
species numbers and tree health in fragmented Victorian forests.
In: Nature Conservation: the role of remnants of native vegetation
(Saunders DA. Amold GW. Burhidge AA. Hopkins AJM. eds]),
Surrey Beatty and Sons, Chipping Norton, NSW, pp. 65-77
References
Quinn GP, Keough M (2002) Experimental design and data
analysis for biologists. Cambridge University Press
romunov/AED documentation built on May 13, 2021, 5:12 p.m.
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Description Usage Format Source References
Description
This bird data was originally analysed in Loyn (1987), and again in Quinn and Keough (2002). The aim of the study was to relate bird densities to six habitat variables.
Usage
1 |
Format
A data frame with 56 observations of 8 variables:
- Site
ID number of forest patch
- ABUND
Density of forest birds in a forest patch (number of forest birds per count)
- AREA
Size of the forest patch in ha
- DIST
Distance to the nearest patch in meters
- LDIST
Distance to the nearest larger patch in meters
- ALT
Mean altitude of the patch in meters
- YR.ISOL
Year of isolation by clearance
- GRAZE
Index of stocking grazing intensity. An ordinal variable with levels 1 (light) to 5 (intensive)
Source
Loyn RH (1987) Effects of patch area and habitat on bird abundances, species numbers and tree health in fragmented Victorian forests. In: Nature Conservation: the role of remnants of native vegetation (Saunders DA. Amold GW. Burhidge AA. Hopkins AJM. eds]), Surrey Beatty and Sons, Chipping Norton, NSW, pp. 65-77
References
Quinn GP, Keough M (2002) Experimental design and data analysis for biologists. Cambridge University Press
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