Monitoring the Habitat of Ute Ladies'tresses ('Spiranthes diluvialis') on the South Fork Snake River, Idaho: Conservation Status and Third Year Results of Habitat Monitoring

摘要

Ute ladies-tresses (Spiranthes diluvialis) is an orchid listed as Threatened under the Endangered Species Act. It was found on the South Fork Snake River in 1996 and is now known from 24 occurrences in eastern Idaho. From 1997 to 2003, the population and habitat of Ute ladies-tresses occurrences on public land was monitored along the South Fork Snake River. The results of monitoring in 2003 are discussed in this report. The report format focuses on two areas: general conservation status of Ute ladies-tresses based on visits of all occurrences on public land along the South Fork Snake River, and results of habitat monitoring based on re-sampling permanent transects. This report compliments previous 1997 through 2002 status reports, as well as reports on habitat monitoring results for 2001 and 2002.