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Full-Text Articles in Physical Sciences and Mathematics
Wildwood/Kraemer Lake County Park Observational Study: The Effects Of Fragmentation On Old-Growth Forest Species, Rhonda H. Zimmerman
Wildwood/Kraemer Lake County Park Observational Study: The Effects Of Fragmentation On Old-Growth Forest Species, Rhonda H. Zimmerman
Culminating Projects in Biology
Habitat fragmentation generates forest fragments with increased ratio of "edge". This "edge effect" alters the natural community. Old growth forests support deep forest communities which rely on the closed canopy for survival, often indicators of healthy old growth communities. Putative old growth forest patches were identified in Wildwood Park and St. John’s Arboretum/University. One study objective was to collect baseline data on flora and fauna in Wildwood to confirm the presence of old-growth patches. The main ecological goal of the study was to determine if bird and plant communities exhibited patterns consistent with the operating assumption of 50 acre old-growth …
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds, Yntze Van Der Hoek
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds, Yntze Van Der Hoek
Dissertations, Theses, and Capstone Projects
Many species show dramatic changes in population extinction or persistence probability at particular habitat amounts. These `extinction thresholds' could be translated to conservation targets, under the condition that we can derive generalities. I investigated the level of variation in landscape-level habitat thresholds for a suite of North American, forest-associated, breeding birds. Records from Breeding Bird Atlases and the availability of remotely-sensed land cover data allowed me to compare habitat thresholds for 25 species across the states of Massachusetts, Michigan, New York, Ohio, Pennsylvania, and Vermont. I show that variation in thresholds is considerable (Chapter II, III), as thresholds range from …
Stream Crossing Barrier Prioritization Methods For Increasing Eastern Brook Trout Habitat In The Little Androscoggin River Watershed, Michele Windsor
Stream Crossing Barrier Prioritization Methods For Increasing Eastern Brook Trout Habitat In The Little Androscoggin River Watershed, Michele Windsor
Thinking Matters Symposium Archive
Eastern Brook Trout (Salvelinas fontanalis) are an important cold water fishery in the state of Maine. While populations in Maine are relatively abundant there has been decline in some parts of its range due in part to loss of habitat connectivity. Brook trout require access to specific types of stream habitat for spawning, feeding, and seasonal thermal refuges. Stream crossing structures such as undersized, poorly installed, or blocked culverts, as well as small remnant dams, can create barriers to accessing important stream habitat for brook trout. A recent Fish Barrier/Culvert Survey in the Little Androscoggin River Watershed provided data about …