science

Meet our Educators: Paul Arbetan

Paul Arbetan

Associate Professor of Ecology, Diné College

Tsaile, AZ / Navajo Nation

11/08/21 – 11/24/21

 

     Paul Arbetan teaches ecology at Diné college in Tsaile, Arizona on the Navajo Nation. After working with the Bureau of Land Management and New Mexico’s Department of Military Affairs, conducting ecological surveys, Paul is well versed in desert life systems. As a professor, he teaches his students to make close observations about the ever-evolving natural world. He reads the landscape closely, paying attention to the function of microscopic bacteria, the changes in vegetation brought about by differing levels of moisture in the air and the humans inhabiting it. Though, he walks faster than an Olympic race-walker, he takes the time to pause and look around. He turns to his students and asks “if seeds are everywhere why does vegetation exhibit patterns on the landscape?” He teaches his students to identify the climate processes and the importance of water availability which affect the types of plants growing in a specific area.

     Paul emphasizes that everything in the natural world is interconnected and undergoes constant change. “Modern ecology, thinks of relationship of organisms and the patterns as this constant evolutionary interplay between the niche space of these plants and the organisms that feed on them. It’s this constant change, constant reshifting of the organisms in the landscape, and to us in our short lifetimes, it just often seems as though it seems pretty constant. But it's not.”

     Although a scientist by trade, Paul looks at science, philosophy, and the arts as different yet all indispensable methods of knowing. After weeks of teaching Semester in the West students about ecology, Paul engaged in conversations not only about desert grasses but also free will and consciousness. Well versed in philosophy Paul says he only knows one thing for sure and that is that he knows absolutely nothing.

 

By Jade Strapart

Meet our Guests: Susie Knezevich

Susie Knezevich

Interior designer and co-owner of Johnson Lakes Canyon property

Kanab, UT

9/30/21

 

     Recent rains have turned large portions of the road leading to Johnson Lakes Canyon outside of Kanab, UT, into soup, but this doesn’t stop Susie Knezevich from reaching the property that she has worked so hard to restore. Almost 20 years ago Susie and her husband Rick, who both reside in Aspen, CO, were looking for a parcel of land where they could hike and camp. In 2004 they purchased an 800-acre private inholding in the Grand Staircase-Escalante National Monument, a land dominated by sand, sage, and bluffs. Their land, however, was not in the best condition for hiking. Decades of cattle grazing had destroyed native vegetation and allowed prickly invasive plants such as Russian olive and bull thistle to proliferate.

     “We decided to take the cattle off the land because we noticed the damage and we needed to begin fixing that,” Susie said. The Knezevichs worked with the Grand Canyon Trust, a regional environmental group, to put their land under a conservation easement in 2015 to ensure that it will remain free from the beefy ungulates in perpetuity.

     The Johnson Lakes Canyon property now serves as a reference area for the surrounding National Monument which remains heavily grazed by cattle. Susie and her husband have worked with ecologist and SITW guest educator Mary O’Brien to bring in biologists, students, and volunteers to conduct research and restoration projects with the goal of showing how the land has rebounded since grazing has ceased. Susie excitedly shared that the native oaks, cottonwoods, and willows are reaching heights and numbers not noted for years. “We were unlikely characters to get involved in conservation treatments, but now we are really hooked!” says Susie.

 

By Ani Pham

Meet our Educators: Mary O'Brien

Mary O’Brien

Scientist, activist, stakeholder member of Monroe Mountain Working Group

Castle Valley, UT

9/16/21 - 10/3/21

Mary O’Brien has worn a lot of hats during her more than 30 years of work on environmental causes. She is a Ph.D. botanist and an activist who has been involved with kickstarting regulations for toxic chemicals in Oregon, preserving the Hells Canyon National Recreation area, and, most recently, pushing for responsible management of range areas. In the intermountain West this applies to a vast amount of land given that most public land in this country is open to livestock grazing. Mary has seen and documented the negative impacts cattle have on these places—trampled and incised streams, loss of riparian habitat, and reduced biodiversity in forest—and she believes there need to be fewer cows on public lands.

On Monroe Mountain in south-central Utah, the Forest Service is currently undergoing a restructuring of grazing allotments. They will decide how many cattle will be allowed in what areas, and what environmental standards will be enforced for the foreseeable future. Mary gathers scientific data such as the height of grasses in riparian areas, to hold organizations like the Forest Service accountable to commitments they have made to conserve habitat.

Mary explains that “the interesting thing about numbers and methods that anyone can repeat, is that you can’t deny that . . .if they think we’re making stuff up, they can go to that spot and rerun their own transects.” The Forest Service must take this undeniable proof (i.e. data collected in the National Forest) into account when they make decisions. She sees science as a way of taking the human perspective out of the picture, and letting other species speak through the data. She firmly believes the nonhuman members of the Utah ecosystem deserve a seat at the decision-making table.

     Mary works hard, walks fast, and holds herself and her work to a high standard of accuracy. She pushed the Westies to do what it takes to get accurate and precise data, hiking far over cacti and scrambling through juniper trees to set the tape measure in a straight line for a transect. When it came time to write up reports, she edited the work that 20 students produced almost as fast as it could be written. Multiple drafts later, reports were sent in to the Forest Service to be considered when planning the new grazing rules in Monroe Mountain.

  

By Reya Fore