Finding a Mojave Desert tortoise in the American Southwest is becoming quite a challenge. These unique tortoises, known for their domed and patterned shells, are native to areas in California, Nevada, Arizona, and northwestern Mexico. Unfortunately, they have lost much of their habitat to development over the years. Additionally, they face threats from disease and climate change, which are putting their survival at risk.
Research indicates that around 90% of tortoises have vanished from their primary habitats since 1984. The California Department of Fish and Wildlife labeled them as threatened in 1989, with the U.S. Fish and Wildlife Service following suit the next year. Recently, California has escalated their status to endangered under the state’s Endangered Species Act. This urgent step signals a clear need for better management to ensure their survival.
Krysten Kellum, a spokesperson for the California agency, emphasized the importance of this status change for funding conservation efforts. “The uplisting highlights the urgency of tortoise conservation needs,” she stated.
This year, the Department of Government Efficiency laid off over 400 USFWS staff, with many more accepting voluntary resignations. These cuts could hamper crucial conservation programs, putting species like the desert tortoise at further risk. Garrett Peterson from USFWS noted their commitment to conservation despite not commenting on internal matters.
Kristina Drake, a former leader in the USFWS’s Desert Tortoise Recovery Office, expressed concern about future funding for tortoise conservation. She believes that the lack of federal resources will hinder efforts to protect this ancient species, which has thrived in the desert for at least 15 million years. Fortunately, nonprofits like the Mojave Desert Land Trust are dedicated to preserving the tortoise’s habitat.
During a summer morning, conservationists Patrick Emblidge and Clay Noss searched for tortoise burrows in the Joshua Tree area. The tortoises often spend most of their lives underground, making them hard to spot. Emblidge pointed out the critical situation: “They’re at a serious risk of going extinct, and it’s unjust.” The threats they face include vehicle accidents, habitat destruction, and adverse climate conditions.
‘Death by a Thousand Cuts’
Since being classified as threatened, tortoise populations have continued to decline. Ed LaRue of the Desert Tortoise Council noted that their condition today is worse than it was back in 1989. Despite the existence of recovery areas aimed at protecting them, their numbers keep falling.
Cameron Barrows, a desert scientist, described their situation as “death from a thousand cuts.” Many factors contribute to their decline, including development, drought, and climate change. Studies show that warmer temperatures and prolonged droughts can skew the sex ratio of hatchlings, leading to fewer reproducing females. Jeff Lovich, who researched tortoises for over three decades, indicated that droughts further threaten female tortoises during egg-laying, leading to increased mortality.
Tortoises play a pivotal role in their ecosystems. They dig numerous burrows each year, providing shelter for other animals. These burrows support the desert’s intricate web of life. Lovich explained, “If you took the tortoise away, you would take away that service.” Losing them would disrupt the entire desert ecosystem.
While searching for tortoises, Emblidge and Noss were thrilled to spot two on their expedition. It was a rare sight, given the species’ risk of extinction. “They are incredible animals,” Noss remarked. “But we aren’t giving them a fair chance.” With federal funding unlikely, organizations like the Mojave Desert Land Trust become crucial for conservation efforts. Drake highlighted the need for these groups to “hold the line” in conservation for all endangered species.