Charles J. Krebs
- Published in print:
- 2013
- Published Online:
- September 2013
- ISBN:
- 9780226010359
- eISBN:
- 9780226010496
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226010496.003.0001
- Subject:
- Biology, Ecology
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 ...
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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.Less
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.
Charles J. Krebs
- Published in print:
- 2013
- Published Online:
- September 2013
- ISBN:
- 9780226010359
- eISBN:
- 9780226010496
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226010496.003.0010
- Subject:
- Biology, Ecology
This chapter discusses diseases as the most likely cause for rodent population fluctuations. It first describes a study carried out on vole tuberculosis and population fluctuations, and then ...
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This chapter discusses diseases as the most likely cause for rodent population fluctuations. It first describes a study carried out on vole tuberculosis and population fluctuations, and then discusses the impact of parasitism and disease on the survival rates of small rodents. The chapter also presents two models that illustrate how the interaction of disease with other factors causes population declines.Less
This chapter discusses diseases as the most likely cause for rodent population fluctuations. It first describes a study carried out on vole tuberculosis and population fluctuations, and then discusses the impact of parasitism and disease on the survival rates of small rodents. The chapter also presents two models that illustrate how the interaction of disease with other factors causes population declines.
Charles J. Krebs
- Published in print:
- 2013
- Published Online:
- September 2013
- ISBN:
- 9780226010359
- eISBN:
- 9780226010496
- Item type:
- chapter
- Publisher:
- University of Chicago Press
- DOI:
- 10.7208/chicago/9780226010496.003.0006
- Subject:
- Biology, Ecology
Fluctuations in small rodent populations tend to occur at the same time over large geographical areas. This chapter discusses the patterns of synchrony among rodent populations, and identifies three ...
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Fluctuations in small rodent populations tend to occur at the same time over large geographical areas. This chapter discusses the patterns of synchrony among rodent populations, and identifies three mechanisms as sources of synchrony among populations: dispersal, predation, and weather effects. It also discusses the methods used for analyzing synchrony in more detail.Less
Fluctuations in small rodent populations tend to occur at the same time over large geographical areas. This chapter discusses the patterns of synchrony among rodent populations, and identifies three mechanisms as sources of synchrony among populations: dispersal, predation, and weather effects. It also discusses the methods used for analyzing synchrony in more detail.
