Finding hidden gems among a sea of lava rocks

By IAE Seasonal Technicians Erika Stewart and Ed Cope

September 2019

Field work can be unpredictable, especially in Southern Idaho’s Shrub-Steppe ecosystem, and our 2019 season checked all of the boxes, from crazy weather (snow, hail, thunderstorms, and unrelenting sun) to ever-changing hitch schedules and roads that do not seem to exist. This year, the Conservation Research team at IAE began a new project as contractors for the Twin Falls District Bureau of Land Management (BLM) in Southern Idaho. The project focused on vegetation monitoring to assess the success of post fire seeding recovery efforts, and our field sites were centered within Craters of the Moon National Monument.

 

Lava Rocks in Craters of the Moon National Monument

While Crater of the Moon's eruptions were mild, they produced large lava flows like this one

I was born and raised in southern Idaho, and have a majority of my field experience in Sagebrush Steppe landscapes. It's beautiful country - an arid landscape that at a glance can look to be a monotonous shade of brown, but holds hidden gems for those willing to look close enough. Those hidden gems are the reason many of us pursued the fields of ecology, botany, wildlife biology, and conservation. This is why we are willing to put up with all of the unpredictability - including bad weather and difficult terrain.

These hidden gems were what my field partner, Ed Cope (a wonder-botanist from Illinois), and I were expecting to find at our field sites. Not being a west coast native, Ed was looking forward to quality Greater Sage-Grouse habitat, new and rare plant species, and surveying a diverse landscape. I was looking forward to returning to a landscape I call “home.” The place I grew up, honed my botany skills, and saw my first Sage-Grouse. However, the gems proved to be a bit more hidden than we expected, but at the end of the day, this beautiful and mysterious country did not fail to disappoint.

Phrynosoma platyrhinos - Northern Desert Horned Lizard

Astragalus purshii - Woollypod Milkvetch

Opuntia polyacantha - Plains Pricklypear Cactus

Crotalus viridis - Western Rattlesnake

Our project areas within Craters of the Moon National Monument burned with anywhere from relatively light to moderate fire intensity in 2016. Native shrubs, forbs, and grasses were seeded post-fire for emergency stabilization and rehabilitation, and based on past rehabilitation successes, natural recovery without additional seeding treatments was the expected outcome. At many of our field sites, what we found predominantly was an invasive annual grass commonly called cheatgrass (Bromus tectorum). Invasive species and noxious weed expansion is a serious concern that transcends state boundaries and ecotypes. The effects of invasive, widespread exotics such as cheatgrass have been widely studied, with ongoing data collection and analysis in treatment areas, such as the native seeding treatment for our project. These species outcompete native species, causing a decline in biodiversity, and cheatgrass in particular can contribute to greater wildfire occurrence and intensity.

Author Erika Stewart, Kaitlyn Harless, and Ed Cope set up a monitoring plot in a Bromus tectorum dominated landscape.

This season, we gained new appreciation for the struggles land managers have in combating native species, particularly cheatgrass.  We strengthened our resolve and skills in collecting better data, finding solutions to problems posed by invasive species, and affecting change at all levels - even from the ground up. We gained much experience for future restoration and rehabilitation projects to create landscapes with an abundance of native species, and in finding exciting gems hidden found in a seemingly monotonous, brown landscape.

We are grateful to the Twin Falls District Bureau of Land Management (BLM) in Southern Idaho for initiating this project. For more information on our Internship Program, please visit our website. 

 

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