Classifying Rodent Population Changes
Classifying Rodent Population Changes
This chapter discusses the rise and fall of rodent populations, and classifies these population changes. First, it defines four background issues that must be reviewed before classifying patterns of rodent population changes: population, population density, time step of sampling population attributes, and data needed to test hypotheses about population limitation. Next, the chapter examines data sets to illustrate empirical patterns of population change: (1) lemmings in Siberia and Norway; (2) gray-sided voles on Hokkaido, Japan, and at Kilpisjärvi, Finland; and (3) meadow voles in Central Illinois, USA. Finally, it discusses the time series analysis of population changes and illustrates calculations for several populations of myodes (Clethrionomys) in North America.
Keywords: rodent populations, population change, population density, lemmings, voles, myodes
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