Description Usage Format References Examples
Number of territories of Whitethroat in wildflowerfields of different ages. The data has been collected by J-L Zollinger.
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A data frame with 136 observations on the following 8 variables.
field
field id
year
year
age
age of the wildflower field in years
bp
number of territories of whitethroats Sylvia communis
X
x-coordinate
Y
y-coordinate
size
area of the field in ares (a, 10 x 10 m)
Nspec
number of species
Zollinger J-L, Birrer S, Zbinden N, Korner-Nievergelt F (2013) The optimal age of sown field margins for breeding farmland birds. Ibis 155: 779-791
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