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Seasonal roadside ditch use by Microtus and Sigmodon.

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dc.contributor.author Bailey, Virleen.
dc.date.accessioned 2012-08-14T20:44:50Z
dc.date.available 2012-08-14T20:44:50Z
dc.date.created 1984 en_US
dc.date.issued 2012-08-14
dc.identifier.uri http://hdl.handle.net/123456789/2028
dc.description vi, 68 leaves en_US
dc.description.abstract During late fall and winter, rural roadside ditches support numerous small mammal species regardless of the type of adjacent habitat. The extent of ditch utilization as small mammal winter habitat is influenced by the effect of agricultural use of adjoining land and by factors associated with competition, predation and weather. This two year study examined the use of Microtus ochrogaster and Sigmodon hispidus of ditches and adjoining agricultural land, marginal pasture, and native grassland. Vegetative cover in all ditches studied remained relatively constant during the study, except for the native-grassland ditch (ditch R) which was burned the first spring. Where ditch and adjacent area vegetative cover were homogenous and constant (ditch R), separate rodent populations appeared to be established in the ditch and on the adjoining land. Where agricultural treatment of adjoining land resulted in cover that varied with season of the year, evidence suggested that roadside ditches may represent primary habitat with adjacent land serving as forage and dispersal areas for ditch populations. However, some use of ditches for winter habitation by a small number of rodents from the adjoining lands was indicated. en_US
dc.language.iso en_US en_US
dc.subject Prairie vole-Environmental aspects. en_US
dc.subject Cotton rats-Environmental aspects. en_US
dc.subject Habitat selection. en_US
dc.title Seasonal roadside ditch use by Microtus and Sigmodon. en_US
dc.type Thesis en_US
dc.college las en_US
dc.advisor Dwight L. Spencer en_US
dc.department biological sciences en_US

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