Author： Ahlgren Clifford E.
Publisher： Society of American Foresters
ISSN： 0022-1201
Source： Journal of Forestry, Vol.64, Iss.9, 1966-09, pp. : 614-618
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Abstract
Changes in populations of small mammals were investigated on four jack pine tracts in northeastern Minnesota. One tract was left uncut, one was cut with slash evenly distributed, and two were cut and subjected to controlled burning. North American census trapping methods were used in July and October for three consecutive years. Populations of deer mice (Peromyscus maniculatus) were significantly higher on burned tracts than on unburned tracts the first and third post-fire years. This increase was related to the supply of seed released by burned jack pine and also other seed exposed in the upper layers of soil, as well as to cover conditions. Since burning created habitat and food conditions favorable to the increase of seed eating mouse species they must be taken into consideration in post-fire reforestation.
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