CHAPTER ONE. Historical Development, Principal Federal Legislation, and Current Management of Sagebrush Habitats: IMPLICATIONS FOR CONSERVATION

Abstract

The historical disposition and development of sagebrush (Artemisia spp.) landscapes have resulted in land ownership mosaics and differences in environmental qualities among land managers that influence today’s conservation planning. Early land-use policies following major land acquisitions from 1776 to 1867 in the western United States were designed to transfer the vast public resources to private ownership. Federal legislation enacted during the late 1800s and early 1900s encouraged development of arable regions, facilitated livestock grazing, created transportation corridors, and provided for access to minerals, coal, and petroleum. Productive lands characterized by deeper soils and access to water were transferred to private entities and converted from native habitats to agriculture. Privately owned lands are a major constituent of sagebrush landscapes in the Great Plains and Columbia Basin and are intermixed with public lands in other SageGrouse (Centrocercus spp.) Management Zones. The public still retains large areas and 70% of current sagebrush habitats. The Bureau of Land Management has responsibility for almost half of the sagebrush habitat in the United States; however, those lands are relatively unproductive and characterized by xeric environments and shallow soils. More recent legislation reflects changing public values to maintain or restore natural components, such as plants and wildlife, and minimize the impact of land uses in sagebrush landscapes. Multiple use dominates the management policy of most sagebrush habitat on public land; very little of the lands used by Greater Sage-Grouse (Centrocercus urophasianus) has protected status in national parks or reserves. Conserving sagebrush landscapes required by Greater Sage-Grouse and other wildlife will depend on engaging the mosaic of public agencies and private ownerships in management programs, understanding the broad diversity of habitat characteristics, and recognizing the limitations of environments supporting the majority of sagebrush habitat on public lands.