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Data on the annual numbers of lynx trapped in the Mackenzie River district of northwest Canada from 1821--1934.
ex1513
A data frame with 114 observations on the following 3 variables.
Year
year
Lynx
number of lynx trapped
Spots
number of sunspots
Elston, C. and Nicholson, M. (1942). The Ten Year Cycle in Numbers of the Lynx in Canada, Journal of Animal Ecology 11(2): 215--244.
str(ex1513)
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