Population Ecology of the Western Harvest Mouse, Reithrodontomys megalotis: A Long-Term Perspective

The population ecology of P. apodemoides was examined at two mature heathland localities in western Victoria. At the more mesic Little Desert site animals bred in spring and summer, but at the xeric Big Desert site they bred in winter. Such a discrepancy may arise from phenological differences between the two sites, rather than successional or climatic differences. Both populations were characterized by high levels of transience, and one instance of long-term dispersal was recorded. The breeding system may be promiscuous, and large; unstable groups of animals of both sexes may occupy individual burrows. The sex ratio at breeding was female-biased, which generates a capacity for rapid response to fluctuations in food resources. This is valuable in habitats frequently perturbed by fire and drought.

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Long-term Trends in the Population Ecology of Polar Bears in Western Hudson Bay in Relation to Climatic Change

ARCTIC ◽

10.14430/arctic935 ◽

1999 ◽

Vol 52 (3) ◽

Cited By ~ 254

Author(s):

Ian Stirling ◽

Nicholas J. Lunn ◽

John Iacozza

Keyword(s):

Climatic Change ◽

Population Ecology ◽

Hudson Bay ◽

Polar Bears ◽

Long Term Trends ◽

Western Hudson Bay

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The Population Ecology of the Eastern Harvest Mouse (Reithrodontomys humulis) in Southeastern Virginia

The American Midland Naturalist ◽

10.2307/2425677 ◽

1989 ◽

Vol 122 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

J. Michelle Cawthorn ◽

Robert K. Rose

Keyword(s):

Population Ecology ◽

Harvest Mouse

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The Population Ecology of Man in the Early Upper Pleistocene of Southern Africa

Proceedings of the Prehistoric Society ◽

10.1017/s0079497x00015413 ◽

1963 ◽

Vol 29 ◽

pp. 235-257 ◽

Cited By ~ 5

Author(s):

Richard B. Lee

Keyword(s):

Population Ecology ◽

Southern Africa ◽

Intermediate Phase ◽

Main Body ◽

Present Climate ◽

Upper Pleistocene ◽

Ecological Zones ◽

Archaeological Materials ◽

Early Upper

The object of this essay is to study the effect of shifting Pleistocene climates on the numbers and distribution of early man. The geographical setting for the study is southern Africa. Chronologically, it is concerned with the cultures of the First Intermediate Phase—the Fauresmith and the Sangoan, which flourished in this region during the period 50,000–40,000 B.C.The main body of the work is devoted to a description of the ecological zones of southern Africa and an evaluation of these zones in terms of their suitability for hominid occupation. Three maps of ecological zones are employed: the first shows the vegetation as it exists under the present climate; the second and third plot the zones as they might appear under conditions of higher and lower rainfall respectively. The regions of southern Africa are then classified on the basis of their long-term favourability for hominid occupation.The use of this framework enables one to reinterpret the distribution of archaeological materials and to produce revised estimates concerning the numbers of men in the Pleistocene.

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