Sierras and Great Basin, III.

The Nevada BLM Carson City District Office CLM Intern Team discovers population of threatened species Ivesia webberi. An amazing find!

A mixed sagebrush-juniper community covers a large semi-remote area of rangeland only 30 minutes north of Reno, Nevada.  Much like most of the state, the area is managed primarily by the BLM with allotments of private land interspersed throughout the region.  As new opportunities arise, private land owners look to alternative ways to achieve a wide array of management goals.  This area in particular has been slotted for land use change pertaining to the large population of Utah Juniper (Juniperus osteosperma) and potential Sage Grouse habitat.

Sagebrush Steppe, Dry Valley, Washoe County, NV

Before significant change on BLM land can happen, a variety of environmental assessments and rare species surveys must be completed to evaluate the impact of the specific project.  This is where our responsibilities for botanical surveys come into play.  Webber’s Ivesia (Ivesia webberi) is an ESA Threatened species, BLM Special Status species, and a Critically Endangered species in the State of Nevada.  The area of interest was designated as potential habitat for Ivesia webberi by our mentor and other BLM Staff.  Our team was tasked with navigating polygons of likely Ivesia habitat and conducting surveys for the rare species across hundreds of acres.  We spent the better part of the work week performing surveys for Ivesia webberi throughout the region while camping in the field.  On the last polygon of the last hour on the last day of our surveys, a fellow intern called the group over as we walked our lines.  “I’ve got it!”  Nestled in a dry ephemeral drainage line, free of Bromus tectorum and other competitors, thrives a newly recorded population of Ivesia webberi!  We recorded the GPS information, created Polygon and Line features, and pin flagged the area for a future return trip.  The discovery of this satellite population is the first in the area and a land management determination is currently in the works.  We are scheduled to return next week for further surveys!

Webber’s Ivesia (Ivesia webberi)

Lake Tahoe calls on the weekends.  In the past few weeks, we have explored Emerald Bay, Eagle Lake at the trailheads of Desolation Wilderness, and Marlette Lake high on the slopes of Tahoe’s eastern border.  Whether we are botanizing, birding, skiing, backpacking, swimming or biking, the seemingly endless activities draw us back over the Sierras to our weekend getaway every time.

Lake Tahoe from Marlette Lake

Eagle Lake, Desolation Wilderness

Emerald Bay, Lake Tahoe

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.