My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
1997-06-13_REPORT - M1981302 (11)
DRMS
>
Day Forward
>
Report
>
Minerals
>
M1981302
>
1997-06-13_REPORT - M1981302 (11)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
9/9/2022 3:19:17 PM
Creation date
11/27/2007 6:37:16 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1981302
IBM Index Class Name
Report
Doc Date
6/13/1997
From
US DEPT OF THE INTERIOR
To
TE/UTE LADIES TRESSES COVERY PLAN
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
53
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
Invasion of exotic species into orchid habitat poses a serious threat to the <br /> species ' viability. The Ute ladies'-tresses does not tolerate dense competing <br /> vegetation. In the large Boulder populations, unchecked Canada thistle growth <br /> prevents orchids from flowering and reproducing. Other exotic species common <br /> to Ute ladies'-tresses habitat that cause similar detrimental effects include <br /> purple loosestrife ( thrum salicaria) , whitetop (Cardaria spp. ) , Russian <br /> olive (Eleaonus anoustifolia) , and reed canarygrass (Phalaris arundinaceae) . <br /> The orchid's pattern of distribution as small , scattered, groups and its <br /> restricted habitat make it vulnerable to both natural and human-caused <br /> disturbances. Localized catastrophic events have the potential to extirpate <br /> individual populations. It is not known if many of the species' smaller <br /> scattered populations are of sufficient size to ensure their continued <br /> existence over the long term, particularly the populations in Capitol Reef <br /> National Park along the Fremont River (2 individuals in 1993) , at Willow <br /> Springs, Utah (1 individual found) and along Bear Creek in Wyoming (16 <br /> individuals) . <br /> The Ute ladies'-tresses appears to have a very low reproductive rate under <br /> natural conditions (Coyner 1991) . Many orchid species take 5 to 10 years to <br /> reach reproductive maturity, and this is probably true for S. diluvialis. <br /> Reproductively mature plants do not flower every year. These life history and <br /> demographic features make the species more vulnerable to the combined impacts <br /> of localized extirpations, diminishing potential habitat, increasing distance <br /> between populations, and decreasing population sizes (Belovsky et al . , 1994) . <br /> The present condition of the Ute ladies'-tresses is indicative of the health <br /> and condition of watersheds and streams throughout its range. Other species <br /> dependent upon the same habitats, for example native fish and amphibian <br /> species, are also in trouble. Appropriate watershed and stream management can <br /> be beneficial to many species, not just the Ute ladies'-tresses, while <br /> improving other watershed functions such as water quality. <br /> G. Conservation Measures <br /> Many conservation measures have already been undertaken for this rare orchid, <br /> including expanded inventories, research projects, land management efforts, <br /> and development of regulatory mechanisms. <br /> Inventory. Inventories for the species have been or are being conducted in <br /> Utah, Colorado, Nevada, Wyoming, and Montana. These inventories have resulted <br /> in several new discoveries or relocations of historic occurrences, including: <br /> every major drainage in the Uinta Basin (Franklin 1993) ; the Diamond Fork and <br /> Spanish Fork Rivers (Stone 1993, L. Gecy, RMI , in litt. , 1994) , and along the <br /> Provo River (Robert Johnson, Dugway Proving Grounds, pers. comm. 1994) on the <br /> Wasatch Front; at Willow Springs in Utah's west desert (eastern Great Basin) <br /> (Doug Stone, pers. comm. 1994) ; along St. Vrain Creek (Steven Peterson, <br /> Western Resource Development, pers. comm. 1993) , upstream in Clear Creek <br /> (Chris Pague, Colorado Natural Heritage Program, pers. comm. I993) and in the <br /> Cache La Poudre River drainage (K. Manci , City of Fort Collins, in litt. , <br /> 1993) in Colorado's Front Range; and in the Bear Creek drainage in Wyoming <br /> (Ernie Nelson, Rocky Mountain Herbarium, pers. comm. 1994). These discoveries <br /> 12 <br />
The URL can be used to link to this page
Your browser does not support the video tag.