Firefighter walking in a burning forest

U.S. Forest Service workers light small contained fires that burn brush. These prescribed fires will prevent future infernos.

Eric Knapp/U.S. Forest Service

STANDARDS

CCSS: 6.SP.B.5.C, MP2, MP5, MP6

TEKS: 6.12C, 6.12D

Owls Under Fire

Can we learn from Indigenous groups how to better manage wildfires and save threatened owls?

Mexican spotted owl in a tree

John Cancalosi/Alamy Stock Photo

Finding Mexican spotted owls in trees is tough because they blend in so well.

Serra Hoagland is a biologist with the U.S. Forest Service. She describes her job as playing “Where’s Waldo?” in the forest. But instead of hunting for a man in a striped top, she’s looking for Mexican spotted owls. “They’re very hard to see and are pretty hidden in the trees,” Dr. Hoagland says. “When we find them, it’s very exciting!”

The Mexican spotted owl is a threatened species in the U.S., and wildfires are the main threats to its survival. Not only do fires kill owls as they burn, but they also destroy the birds’ homes. Wildfires strip the forest of its canopy of leaves and needles, exposing the owls to predators. “They’re left with nowhere to hide,” Hoagland says.

Wildfires Around the World
Watch a video about the causes of wildfires and their effect on the environment.

To protect Mexican spotted owls, Hoagland needs to know where they live. She monitors the trees where the owls choose to build nests, which are primarily white firs and Douglas-firs. She conducts her research in two forests located side by side in New Mexico: the Lincoln National Forest, which the U.S. Forest Service manages, and a forest within the Mescalero Apache Reservation, which the Mescalero Apache Tribe manages.

Scientist sitting down smiling and surrounded by her equipment

Courtesy of Serra Hoagland

Hoagland takes a break and checks her gear while looking for spotted owls.

Hoagland is a member of the Laguna Pueblo Tribe and the first female Native American with a Ph.D. to work for the U.S. Forest Service. Throughout her career, she has served as a liaison between the Forest Service and Native American tribes. Now, Hoagland is making similar connections in her research: Learning from the Mescalero Apache people about how the Forest Service can better protect the forests—and owls.

One strategy that many tribes use for forest management is prescribed fire. They will set small fires to clear the brush. That way, if a wildfire begins, there will be fewer leaves and sticks to fuel it. “Tribes are trying to be at the forefront of managing their forests by reintroducing fire,” Hoagland says.

The Forest Service uses prescribed fire too. What sets tribal forest management apart is the overall approach: “Tribes really try to take an integrated, holistic perspective with their management,” Hoagland says.

Jumping Data
Play a cool math game about mean, median, and mode.
Measures of Center
Watch an instructional video about measures of center.

Hoagland collects data about Douglas-fir and white fir trees where she finds Mexican spotted owl nests. Find the mean, median, and mode of the trunk circumferences and heights of select trees with nests that she studied in 2015. Round answers to the nearest tenth. Record your work and answers on our answer sheet.


Chart showing White Fir trees, their circumference, height and then blank mean, median, and mode


Chart showing Douglas Fir trees, their circumference, height and then blank mean, median, and mode

Of the trees that had spotted owl nests, which were taller on average? Which had the larger circumference on average?

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Text-to-Speech