Resource Management. Species or Ecosystem?. Endangered Species Act (ESA). ESA's primary goal prevent the extinction of imperiled plant and animal life to recover and maintain populations by removing or lessening threats to their survival
Resource Management Species or Ecosystem?
Endangered Species Act (ESA) • ESA's primary goal • prevent the extinction of imperiled plant and animal life • to recover and maintain populations by removing or lessening threats to their survival • As of July 29, 2009, there are 1,890 total (foreign and domestic)species on the threatened and endangered lists. However, many species have become extinct while on the candidate list or otherwise under consideration for listing. • 51 species delisted: 23 due to recovery, 10 due to extinction, 10 due to changes in taxonomic classification practices, 6due to discovery of new populations, 1 due to an error in the listing rule, and 1 due to an amendment to the Endangered Species Act specifically requiring the species delisting. • 25 have been down listed from "endangered" to "threatened" status.
The Downside? • Some landowners manage their property to ensure the habitat won’t develop to support endangered animals. • Loopholes are found. • Narrow focus may miss important connections for habitat health. • Land use decisions made around existing species.
Greater Roadrunner Ecology • Feeding: opportunistic on reptiles, spiders, scorpions, insects, birds, rodents and bats. During food shortages, may eat own young. • Feeding habit: chases and captures prey on the ground. May beat prey against a hard substrate before consuming. • Distribution: Open areas mixed with tracts of brush, in arid, open land with scattered bushes or thickets. Absent from stands of unbroken chaparral, grassland, or sparsely vegetated desert . • Reproduction: Compact, open-cup nest of sticks about 1 ft across, built in low tree, shrub thicket, or clump of cactus, at height of 3-15 ft; rarely on ground. Monogamous, long-term pair bond.
Coyote Diet • versatile carnivores with a 90% mammalian diet • 10%: birds, snakes, lizards, large insects and other large invertebrates • target any species of bird that nests on the ground • success as a species is its dietary adaptability • not been known as yet to attack greater roadrunners for prey
Ecosystem Based Management • Inventory of all global ecosystems: rank, locate, describe • Identify most endangered systems and species • Restore degraded ecosystems • Create biodiversity support incentives for developers
National Wilderness Preservation System (NWPS) • Protects federallymanaged wilderness areas designated for preservation in their natural condition. • Activity on formally designated wilderness areas managed by the four federal land management agencies—the NPS, the USFS, the USFW, and the BLM—is coordinated by the National Wilderness Preservation System.
Discussion • How can we make ecosystem protection fair to all countries?