Literaturdatenbank
Literaturdatenbank |
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Walton, E. M. , Using remote sensing and geographic information science to predict and delineate critical habitat for the bog turtle, (glyptemys muhlenbergii). Paper presented at Turtle Survival Alliance 2006 Annual Meeting.
Added by: Admin (13 Dec 2008 22:23:58 UTC) |
| Resource type: Proceedings Article BibTeX citation key: Walton2006 View all bibliographic details  |
Categories: General Keywords: Clemmys, Emydidae, Glyptemys, Glyptemys muhlenbergii, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Walton Collection: Turtle Survival Alliance 2006 Annual Meeting |
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| Abstract |
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Glyptemys muhlenbergii Clemmys The southern population of the bog turtle, Glyptemys muhlenbergii, was listed with the US Fish and Wildlife Service as ?threatened due to similarity of appearance? in 1997. Status surveys are on-going for the southern population, yet the current methodology for locating new populations is labor intensive and fiscally exhaustive. Remote sensing offers the opportunity to use known parameters to discover additional habitats that are similar in biological composition and environmental conditions. Using multispectral bands, a ?fingerprint? of the exact biological and environmental assemblages can be used to find similar habitat areas. The purpose of this paper was to determine whether publicly available data, in the form of satellite imagery and digital aerial photographs, could be analyzed to identify potential bog turtle wetland habitat sites. A subset of a Landsat 7 ETM+ image and digital color infrared aerial photographs were used for a portion of Ashe County, NC where the wetlands occurred. The results of this study indicate that in areas where the digital imagery was of high quality, high spectral/temporal resolution, it is possible to define spectral signatures for these wetlands. However, publicly available data may not be suitable for detecting small, isolated wetlands across the landscape due to heterogeneous landscape features, low spatial/temoral resolution of the images and inherent poor quality of some of the images. These GISc technologies showed promising results that will enhance conservation resources, reduce investigative field search efforts and afford turtle species the protection required to assist in their future survival.
Added by: Admin |