wildebeest: Wildebeest carcass categorical data
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wildebeest R Documentation
Wildebeest carcass categorical data
Description
To test the "predation-sensitive food" hypothesis, which predicts that both food and predation limit prey populations,
Sinclair and Arcese (1995) examined wildebeest (Connochaetes taurinus) carcasses in the Serengeti.
The degree of malnutrition in animals was measured by marrow content since marrow will contain the last fat reserves in ungulates.
Carcasses were cross-classified with respect to three categorical variables: sex (M, F), cause of death (predation, non-predation),
and marrow type (SWF = Solid White Fatty, indicating healthy animals, OG = Opaque Gelatinous, indicating malnourishment, and TG = Translucent Gelatinous, the latter indicating severe malnourishment).
Usage
data(wildebeest)
Format
A data frame with 12 observations on the following 4 variables.
marrowA factor with levels OG SWF TG.
sexA factor with levels F M.
predationA factor with levels N P.
countCount in each cell
Source
Sinclair, A. R. E., and P. Arcese (1995) Population consequences of predation-sensitive foraging: the Serengeti wildebeest. Ecology 76(3): 882-891.
asbio documentation built on May 29, 2024, 5:57 a.m.
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| wildebeest | R Documentation |
Wildebeest carcass categorical data
Description
To test the "predation-sensitive food" hypothesis, which predicts that both food and predation limit prey populations, Sinclair and Arcese (1995) examined wildebeest (Connochaetes taurinus) carcasses in the Serengeti. The degree of malnutrition in animals was measured by marrow content since marrow will contain the last fat reserves in ungulates. Carcasses were cross-classified with respect to three categorical variables: sex (M, F), cause of death (predation, non-predation), and marrow type (SWF = Solid White Fatty, indicating healthy animals, OG = Opaque Gelatinous, indicating malnourishment, and TG = Translucent Gelatinous, the latter indicating severe malnourishment).
Usage
data(wildebeest)Format
A data frame with 12 observations on the following 4 variables.
marrowA factor with levels
OGSWFTG.sexA factor with levels
FM.predationA factor with levels
NP.countCount in each cell
Source
Sinclair, A. R. E., and P. Arcese (1995) Population consequences of predation-sensitive foraging: the Serengeti wildebeest. Ecology 76(3): 882-891.
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