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Animal Sciences Commons

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Zoology

University of Wisconsin Milwaukee

Fragmentation

Publication Year

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Full-Text Articles in Animal Sciences

Land Use Changes In Southeastern Wisconsin: The Landscape Pattern Project, John Dorney, Forest Stearns Apr 1980

Land Use Changes In Southeastern Wisconsin: The Landscape Pattern Project, John Dorney, Forest Stearns

Field Station Bulletins

Since settlement began in the 1830's, the native forest, wetland and prairie vegetation has been replaced by pasture, cultivated fields, highways, towns and cities. Fragmentation of the forest into smaller and smaller isolated patches influences the biological diversity of the remaining patches, as well as species replacement patterns and dispersal of seed and other propagules. This drastically alters the integrity of the regional system. This study documents changes in patterns of land use and forest vegetation and investigates factors influencing these changes and the effect of the present pattern on ecosystem maintenance. This work is part of a larger study …


Oak Island Dynamics In Southeastern Wisconsin, Frank Mudrak Apr 1979

Oak Island Dynamics In Southeastern Wisconsin, Frank Mudrak

Field Station Bulletins

The oak forests of southeastern Wisconsin appear relatively consistent in species composition and probably have shown little change in this regard since European settlement, perhaps because they were originally forest islands in a prairie matrix and remain as islands in an agricultural setting. Elimination of periodic fire permitted the oak savanna to develop into oak forest. Apparently the degree of separation between islands and the xeric nature of the sites restrict invasion by exotic species established as cultivars in nearby villages and farmsteads. Neither tree species richness nor tree species diversity could be predicted from island size, substantiating the belief …