Vegetation

Forest Visitor Maps are at a smaller scale than USGS topographic quadrangle maps and typically do not show contours. Forest Visitor maps contain general recreational information about things such as camping, fishing, biking, other activities, points of...
Yes, it is not unusual for salt marshes to experience dieback in small patches in some years. However, these areas are usually less than an acre or so in size and generally regenerate the next year or over the next several years. Smooth cordgrass marshes...
The most effective way to reverse the buffelgrass invasion and lessen its impacts is to tackle high-risk and high-value areas first, and pool resources to save costs and maximize control efforts across mixed jurisdictions. The Southern Arizona...
The phenomenon of brown marsh has been observed along Louisiana's coastline. Hardest hit is the Barataria-Terrebonne estuary extending from the west side of the Mississippi River to the Atchafalaya River. Least affected marshes appear to be those lying...
African buffelgrass is spreading rapidly in the Sonoran Desert of southern Arizona, creating novel fire risks in both natural and urban areas and threatening conservation efforts. Left unchecked, buffelgrass will dominate the desert landscape and could...
There is great concern that the dead marsh areas could be seriously affected by major storm events. Local, state, and federal agencies are working together to determine what, if any, short-term measures can be implemented, and to put in place long-term...
Effects to industries such as oil and gas cannot be predicted, but healthy marshes and barrier islands are known to be important storm buffers to Louisiana's mainland. Concerns exist for Louisiana's coastal industries, as well as for Louisiana's coastal...
The coastal prairie, located along the coastal plain of southwestern Louisiana and southcentral Texas, is the southernmost tip of the tallgrass prairie ecosystem so prevalent in the Midwest. This region is distinctive from the Midwestern grasslands in...
Brown Marsh is a term that scientists have given to the unusually extensive and rapidly spreading browning of Louisiana’s normally lush green intertidal saltwater marsh grass Spartina alterniflora, known more commonly as oyster grass or smooth cordgrass....
A decision-support model that simulates buffelgrass spread and treatment effectiveness was developed by the Southern Arizona Buffelgrass Coordination Center, ESSA Technologies, and the USGS Invasive Species Program. This model’s prototype was developed...