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Full-Text Articles in Life Sciences
Influence Of Silvicultural Treatment, Site Characteristics, And Land Use History On Native And Nonnative Forest Understory Plant Composition On The Penobscot Experimental Forest In Maine, Elizabeth Bryce
Electronic Theses and Dissertations
This study investigates forest understory plant diversity and composition in managed and unmanaged stands within the context of a long-term silvicultural experiment in the Acadian Forest of Maine. I examined the effects of silvicultural intensity and past land use on understory plant species diversity and composition. Silvicultural treatments include three variants of the selection system, three variants of the shelterwood system, modified and fixed diameter-limit cutting, and an unregulated harvest. Two types of unmanaged stands were studied: a continuously forested natural area and secondary forest stands on old fields. Chapter 1 presents analysis of understory plant diversity and composition in …
The Effects Of Fire And Deer Herbivory On Oak Regeneration In An Eastern Deciduous Forest, Julie La Spina
The Effects Of Fire And Deer Herbivory On Oak Regeneration In An Eastern Deciduous Forest, Julie La Spina
Honors Theses
In the past, oak was one of the most dominant species groups in the deciduous forests of the northeastern United States. More recently, a variety of factors, including interspecific competition, fire suppression and deer herbivory, have led to the decline of oaks. We studied how oaks regenerate and grow following a major disturbance, and how their growth interacts with deer herbivory. We measured the growth of seedlings of three tree species following the 1,200 hectare Overlook Fire that occurred in Minnewaska State Park, NY in April 2008. At each of three sites, we measured the growth of twenty Quercus prinus, …
Vegetation Response To Restoration Treatments In A Former Pine Plantation In North Florida, Ryan C. Meyer
Vegetation Response To Restoration Treatments In A Former Pine Plantation In North Florida, Ryan C. Meyer
UNF Graduate Theses and Dissertations
As the human population in Florida continues to expand, development follows, and tree farms give way to homes and businesses. As parks are established, restoration of these semi-natural plantations may provide critical habitat for species conservation. This study evaluates vegetation response to restoration treatments at two study sites, formerly tree farms, now preserves in NE Florida. Treatments included thinning, clearing, or control (no treatment) within 10m^2 plots. Thinning reduced tree canopy to 20% (2-3 pines/plot) and removed all other vegetation; clearing treatments removed all biomass to bare soil; no herbicides were used. Within these plots richness and abundance was assessed …