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Full-Text Articles in Physical Sciences and Mathematics
A Morphological Analysis Of A "Confounding" Population Of Castanea In Northwest Georgia, Jamie Dinkins
A Morphological Analysis Of A "Confounding" Population Of Castanea In Northwest Georgia, Jamie Dinkins
Honors Theses
Two species of Castanea Mill. (Fagacae) are native to North America: the tall, forest-type Castanea dentata (Marsh.) Borkh. and the smaller, shrubbier Castanea pumila (L.) Miller. There are two varieties of C. pumila: Castanea pumila var. pumila, and Castanea pumila var. ozarkensis (Johnson, 1988). In the early 1900s, chestnut blight caused by Cryphonectria parasitica (Murr.) Barr. reduced C. dentata to stumps and sprouts and severely diminished the abundance of both subspecies of C. pumila. Because Castanea species can apparently interbreed, restoration efforts have been complicated by possible hybridization between the two now shrubby species. One of these putative hybrid and …
Learning The Lay Of Their Land: Data Recording By Maine Land Trusts, Patrick John Roche
Learning The Lay Of Their Land: Data Recording By Maine Land Trusts, Patrick John Roche
Honors Theses
Land trusts have led the recent, rapid expansion in private land conservation in the US. As they have grown, many questions have emerged as to the value of their conservation efforts, especially in the long-term. To address this data gap, studies have evaluated easement restrictions and the characteristics of land trust protected property. I take a novel approach by investigating the data that land trusts record about their protected properties and its impact on their capacity to protect conservation values. I surveyed 55 land trusts operating in Maine about data they record in baseline documentation reports. A majority (82%) had …
Factors Influencing Conservation Success Or Failure In Tiger Range States, Megan C. Saunders
Factors Influencing Conservation Success Or Failure In Tiger Range States, Megan C. Saunders
Honors Theses
Tigers are currently found in 13 countries. Three of eight recognized subspecies are extinct and the other subspecies are considered endangered throughout their range. Major threats to tigers include habitat and prey loss and poaching. Most studies of tiger decline, to date, have explored direct threats. This study uses a range-wide approach to explore possible underlying drivers of tiger decline. I used recent tiger population estimates and identified 6 biological measures and 27 socioeconomic measures to ask why some countries are more successful in conserving tigers than others. Data were analyzed using correlation and regression analyses in SPSS. Higher rates …