Author: Whitney Tilt
Publisher:
Published: 2015
Total Pages: 0
ISBN-13: 9781495160042
DOWNLOAD EBOOK →The Greater Yellowstone Region is a land accented by wildflowers; from diminutive orchids, to plants that flower once every 60 years. Taken together, their forms, colors and habits are diverse and compelling. More than 400 wildflowers, grasses, shrubs and trees readily found in the Greater Yellowstone Region, including Yellowstone and Grand Teton National Parks are included here.
Author: Richard J. Shaw
Publisher:
Published: 2008-01-01
Total Pages:
ISBN-13: 9780970206732
DOWNLOAD EBOOK →Author: National Research Council
Publisher: National Academies Press
Published: 2002-01-01
Total Pages: 198
ISBN-13: 0309169763
DOWNLOAD EBOOK →Ecological Dynamics on Yellowstone's Northern Range discusses the complex management challenges in Yellowstone National Park. Controversy over the National Park Service's approach of "natural regulation" has heightened in recent years because of changes in vegetation and other ecosystem components in Yellowstone's northern range. Natural regulation minimizes human impacts, including management intervention by the National Park Service, on the park ecosystem. Many have attributed these changes to increased size of elk and other ungulate herds. This report examines the evidence that increased ungulate populations are responsible for the changes in vegetation and that the changes represent a major and serious change in the Yellowstone ecosystem. According to the authors, any human intervention to protect species such as the aspen and those that depend on them should be prudently localized rather than ecosystem-wide. An ecosystem-wide approach, such as reducing ungulate populations, could be more disruptive. The report concludes that although dramatic ecological change does not appear to be imminent, approaches to dealing with potential human-caused changes in the ecosystem, including those related to climate change, should be considered now. The need for research and public education is also compelling.
Author: Walter Byron McDougall
Publisher:
Published: 1956
Total Pages: 240
ISBN-13:
DOWNLOAD EBOOK →Author: Frank E. A. Thone
Publisher:
Published: 2013-10
Total Pages: 78
ISBN-13: 9781258966713
DOWNLOAD EBOOK →This is a new release of the original 1923 edition.
Author: Walter Byron McDougall
Publisher:
Published: 1936
Total Pages: 178
ISBN-13:
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