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This map layer is extracted from a grid map of North America including the Caribbean and most of Mexico. The map layer is an excerpt from a global assessment of forest fragmentation (Riitters et al., 2000). Each pixel value represents an index of forest fragmentation for the surrounding 81 sq. km. The map layer was created by applying spatial algorithms to a 1 sq. km. resolution map of global land cover (Loveland and Belward 1997) known as NAIGBP1_2L, obtained from the USGS Center for EROS Distributed Active Archive Center (DAAC) as part of the Global Land Cover Characteristics database (GLCC)(Loveland et al. 1991, 1999). One of six categories of fragmentation was identified for each forested pixel in North...
This dataset displays the boundaries of Intact Forest Landscapes for the islands in the Tongass region of the state of Alaska. Intact Forest Landscapes for islands are defined as areas at least 500 hectares that are absent of human disturbance visible on satellite imagery (e.g., roads, logging, mining, settlement). For more information, see the full report, available on the Global Forest Watch website (www.globalforestwatch.org), or the Conservation Biology Institute website (http://www.consbio.org/cbi/projects/show.php?page=alaska).
This dataset depicts known locations of Port-Orford Cedar in Northern California.
This dataset depicts 3 classes used as input to the FRAGSTATS tool for calculating fragmentation metrics for the DRECP area with 12 km buffer. We used the "Natural Vegetation" class in this dataset to calculate fragmentation metrics. Fragmentation classes were created from NLCD Impervious Surfaces, LANDFIRE EVT v1.1, NatureServe National Landcover v27, roads, utility lines, power plants, pipelines, geothermal wells, mines, wind turbines, and oil/gas wells.
This dataset displays the boundaries of Forest Landscape Fragments for the boreal region of the state of Alaska. Forest Landscape Fragments are defined as areas between 5,000 hectares and 50,000 hectares that are absent of human disturbance visible on satellite imagery (e.g., roads, logging, mining, settlement). For more information, see the full report, available on the Global Forest Watch website (www.globalforestwatch.org), or the Conservation Biology Institute website (http://www.consbio.org/cbi/projects/show.php?page=alaska);.
This dataset represents areas in western Oregon with high conservation value. Identification of areas with high conservation value can help land managers strategize during planning efforts to better meet goals, such as viability of northern spotted owls. A large proportion of the areas identified as high conservation value fall on public lands, some areas of which are currently undergoing management plan revisions. Combination of this dataset with datasets depicting land ownership and protection status, such as the Protected Areas Database, can reveal areas of high conservation value which are not currently protected. High conservation value was evaluated using the Ecosystem Management Decision Support (EMDS) tool,...
Tags: connectivity,
conservation value,
fish,
forest,
fragmentation, All tags...
habitat,
landscape,
listed species,
oregon,
streams,
threatened and endangered,
water,
watershed, Fewer tags
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