Analysis of Historical Vegetation Distributions in the Sierra Nevada Using Government Land Office Survey Records
Title | Analysis of Historical Vegetation Distributions in the Sierra Nevada Using Government Land Office Survey Records PDF eBook |
Author | Holly Rebecca Hyde |
Publisher | |
Pages | 200 |
Release | 2002 |
Genre | |
ISBN |
Proceedings of the Sierra nevada Science Symposium
Title | Proceedings of the Sierra nevada Science Symposium PDF eBook |
Author | |
Publisher | |
Pages | 306 |
Release | 2004 |
Genre | |
ISBN |
Impact of Land Use Change on Vegetation Patterns in the Sierra Nevada
Title | Impact of Land Use Change on Vegetation Patterns in the Sierra Nevada PDF eBook |
Author | David Samaan Saah |
Publisher | |
Pages | 298 |
Release | 2001 |
Genre | |
ISBN |
Influences of Latitude and Climate on the Distribution of Sierra Nevada Vegetation
Title | Influences of Latitude and Climate on the Distribution of Sierra Nevada Vegetation PDF eBook |
Author | Jill Elaine Spear |
Publisher | |
Pages | |
Release | 2014 |
Genre | |
ISBN | 9781321609929 |
The Sierra Nevada has been identified as a biodiversity hotspot as part of the California Floristic Province due to a high level of endemic species, many of which are vulnerable to habitat loss within the Province. Throughout the Tertiary period, species have been responding to a changing climate. As a result, the Tertiary period is one basis from which we can try to understand current plant distributions. Raven and Axelrod presented a set of biogeographical theories dealing with origins of flora in North America. They defined Arcto-Tertiary flora as having originated in the northern and polar latitudes then migrating south as the climate changed to cooler-drier conditions in the middle Oligocene (28.4 Ma). They also defined Madro-Tertiary flora as having moved from its southern origin in the area south of the Rocky Mountains and the Sierra Madre Occidental in Mexico to northern areas in California as the dry climate continued to expand. I attempt to explore a generalized approach using the Arcto-Tertiary and Madro-Tertiary flora classifications as the basis for understanding how species are currently distributed and what that may say about future responses to climate. AT species are distributed all throughout the Sierra Nevada (40 degrees N to 35 degrees N latitude) but their main distribution lies between 37 and 39 degrees N latitude. Latitude tended to be a poor predictor overall, especially for MT species. The two species groups separated out well based on climatic variables and environmental plot characteristics. This shows that the groups have relations to their climatic origins but not to latitude.
Status of the Sierra Nevada
Title | Status of the Sierra Nevada PDF eBook |
Author | Sierra Nevada Ecosystem Project |
Publisher | |
Pages | 32 |
Release | 1996 |
Genre | Nature |
ISBN |
A History of the Rectangular Survey System
Title | A History of the Rectangular Survey System PDF eBook |
Author | C. Albert White |
Publisher | |
Pages | 794 |
Release | 1983 |
Genre | Government publications |
ISBN |
U.S. Geological Survey Circular
Title | U.S. Geological Survey Circular PDF eBook |
Author | |
Publisher | |
Pages | 252 |
Release | 1984 |
Genre | Geology |
ISBN |