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Filters: Tags: Madrean Archipelago (X) > Types: OGC WMS Service (X)

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In the border region between Mexico, Arizona and New Mexico, a little known landscape supports a unique mix of temperate and subtropical ecosystems, the likes of which are found nowhere else in the United States. The Sky Islands are an area of more than 40 separate mountain ranges isolated by what was once a sea of more than 13 million acres of grassland. It is one of America’s hotspots for wildlife diversity, hosting more than twice as many mammal species as Yellowstone National Park and supporting the nation’s highest diversity of reptiles, bees, and ants. Additionally, these grasslands are a key connecting landscape between the Sierra Madre Occidental Mountains in Mexico and the Rocky Mountains to the North and...
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Sky Island grasslands of central and southern Arizona, southern New Mexico and northern Mexico form the “grassland seas” that surround small forested mountain ranges in the borderlands. Their unique biogeographical setting and the ecological gradients associated with “Sky Island mountains” add tremendous floral and faunal diversity to these grasslands and the region as a whole. Sky Island grasslands have undergone dramatic vegetation changes over the last 130 years including encroachment by shrubs, loss of perennial grass cover and spread of non-native species. Changes in grassland composition and structure have not occurred uniformly across the region and they are dynamic and ongoing. In 2009, The National Fish...
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The Apache Highlands ecoregion incorporates the entire Madrean Archipelago/Sky Island region. We analyzed the current distribution of 223 target species and 26 terrestrial ecological systems there, and compared them with constraints on ecosystem integrity (e.g., road density) to determine the most efficient set of areas needed to maintain current biodiversity. The resulting portfolio of 90 areas includes 12.5 million acres (5 million ha) that should be priorities for protection. Conservation strategies include protection and restoration of grasslands, restoration or maintenance of natural fire regimes, and learning more of probable effects of climate change.
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This data layer was developed for use by regional conservation organizations and partners located in or adjacent to the Sky Islands region of the Southwest and to fill a key data gap, namely detailed, consistent, and project-relevant spatial datasets on land cover. These data emerged, in part, from a stakeholder-based process that involved the participation of multiple organizations, including Conservation Science Partners, Northern Arizona University, The Nature Conservancy, USGS, USFWS, Arizona Game and Fish Department, Borderlands Restoration, Sky Islands Alliance, Arizona-Sonora Desert Museum, and Universidad de Hermosillo. Development of these data was generously supported by Wilburforce Foundation. We developed...
    map background search result map search result map Transboundary land cover dataset for the Sky Islands Ecoregion Sky Island Grasslands Conservation Priorities in the Apache Highlands Ecoregion Sky Island Grassland Assessment Sky Island Grasslands Sky Island Grassland Assessment Transboundary land cover dataset for the Sky Islands Ecoregion Conservation Priorities in the Apache Highlands Ecoregion