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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (5) Types Citation (5) Map Service (5) OGC WFS Layer (5) OGC WMS Layer (5) OGC WMS Service (5) Contacts The Nature Conservancy (TNC) Martha J Desmond Climate Assessment for the Southwest Program Jennifer Atchley Montoya National Fish and Wildlife Foundation (NFWF) More... View Results as: JSON ATOM CSV

Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Grasslands comprise a small part of the Chihuahuan Desert but are vital to the biological diversity of the ecoregion. Characteristic grasses of the Chihuahuan Desert are tobosa (Pleuraphis mutica) and black grama (Bouteloua eriopoda) but other common species include alakali sacaton (Sporobolus airoides), big alkali sacaton (S. wrightii), mesa dropseed (S. flexuosus), blue grama (B. gracilis), sideoats grama (B. curtipendula ), hairy grama (B. hirsuta), slender grama (B. filiformis), chino grama (B. brevista), spruce top grama (B. chondrosioides), bush muhly (Muhlenbergia porteri), several three awns (Aristida spp.), and fluff grass (Dasyochloa pulchela) (Johnson 1974, Dinerstein et al. 2000). Many of the sites discussed... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: English, Madrean, Spanish, agriculture, assessment, All tags... biodiversity, bird, climate, connectivity, desertification, ecoregion, endangered, fire, grazing, invertebrate, mammal, map, ownership, plant, priority, protected area, rare, reptile, scrub, shrub, threat, vegetation, wildlife, Fewer tags Extent and Condition of Grasslands in Arizona, Northern Mexico, and Southwestern New Mexico This file represents the final version of an assessment of the extent, condition, and distribution of grassland types in Arizona as indicated by expert interviews and field verification. Coverage includes the state of Arizona, Southwestern portions of the state of New Mexico, and the Northern portion of Sonora, Mexico. Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: English, GIS, Madrean, US, assessment, All tags... biodiversity, ecoregion, erosion, fire, grassland, grazing, management, plant, priority, restoration, shrub, vegetation, Fewer tags Managing Changing Landscapes in the Southwestern United States Natural landscapes in the Southwestern United States are changing. In recent decades, rising temperatures and drought have led to drier conditions, contributed to large-scale ecological impacts, and affected many plant and animal species across the region. The current and future trajectory of climate change underscores the need for managers and conservation professionals to understand the impacts of these patterns on natural resources. In this regional assessment of the Southwest Climate Change Initiative, we evaluate changes in annual average temperatures from 1951–2006 across major habitats and large watersheds and compare these changes to the number of species of conservation concern that are found within these... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chihuahuan Desert, English, Madrean, Mojave Desert, Sonoran Desert, All tags... US, assessment, biodiversity, bird, climate, ecoregion, endangered, grassland, groundwater, mammal, management, map, model, monitoring, ownership, plant, priority, protected area, rare, research, resilience, restoration, riparian, river, shrub, stream, threat, threatened, vulnerability, water, watershed, wetland, wildlife, Fewer tags Sustaining the Grassland Sea Grasslands of the Sky Islands region once covered over 13 million acres in southeastern Arizona and adjacent portions of New Mexico, Sonora, and Chihuahua. Attempts to evaluate current ecological conditions suggest that approximately two thirds of these remain as intact or restorable grassland habitat. These grasslands provide watershed services such as flood control and aquifer recharge across the region, and continue to support dozens of species of concern. Prioritizing conservation interventions for these remaining grassland blocks has been challenging. Reliable data on condition and conservation value of grasslands in the region have not been systematically summarized. State and national boundaries further complicate... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chihuahuan Desert, English, Madrean, Mexico, US, All tags... agriculture, assessment, bird, climate, climate, connectivity, development, ecoregion, endangered, erosion, fire, grassland, grazing, groundwater, invasive, land cover, mammal, management, map, mining, model, monitoring, ownership, plan, plant, priority, protected area, rare, reptile, restoration, riparian, scrub, shrub, stream, threat, threatened, vegetation, vulnerability, water, watershed, wetland, wildlife, Fewer tags Sacaton Riparian Grasslands Riparian grasslands dominated by big sacaton (Sporobolus wrightii) once covered floodplains across the southwest, but have been reduced to some 5% of their historical extent. Sacaton stands that remain provide key resources for watershed function, wildlife, and livestock—yet may need special management to sustain these benefits. This report describes mapping methods and management recommendations that can be applied to riparian grasslands throughout the region. By examining sacaton grasslands in the Las Cienegas National Conservation Area, this project also refines methods for evaluating ecological condition, and provides managers at this site with detailed maps of both high-quality habitat and restoration needs. Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: English, Madrean, US, agriculture, assessment, All tags... bird, erosion, fire, grassland, grazing, invasive, inventory, land cover, management, map, model, monitoring, plant, remote sensing, research, resilience, restoration, riparian, river, soil, stream, threat, vegetation, water, watershed, wetland, wildlife, Fewer tags