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Full-Text Articles in Life Sciences
A Late Quaternary Pollen Record From Cedarburg Bog, Wisconsin, Glen G. Fredlund, James R. Brozowski, Jong Woo Oh
A Late Quaternary Pollen Record From Cedarburg Bog, Wisconsin, Glen G. Fredlund, James R. Brozowski, Jong Woo Oh
Field Station Bulletins
Late Quaternary (from the last glaciation to present) forest history is inferred from the Cedarburg Bog fossil pollen record. Analysis of fossil pollen samples extend over 4 meters of continuous core recovered from near the center of the bog. The deepest and oldest of the fossil pollen assemblages (ca. 12,000 years ago) suggest open spruce woodlands unlike any in the contemporary boreal ecosystem. Pollen from the Pleistocene-Holocene transition (11,000 years ago) is marked by a number of abrupt changes in forest composition related to rapid climate change, species immigration, and progressive soils and ecosystem maturation. By 9,000 years ago most …
Land Use Changes In Southeastern Wisconsin: The Landscape Pattern Project, John Dorney, Forest Stearns
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Since settlement began in the 1830's, the native forest, wetland and prairie vegetation has been replaced by pasture, cultivated fields, highways, towns and cities.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 …
Forest Vegetation Of Ozaukee County, Larry R. Brumm
Forest Vegetation Of Ozaukee County, Larry R. Brumm
Field Station Bulletins
No abstract provided.