#37: Dr. Stuart Weiss - Checkerspot Butterflies, Cars, and Cows

Today, Dr. Stuart Weiss unravels an amazing and unexpected series of discoveries that connect cows, cars, and conservation, all triggered by the study of the threatened Bay Checkerspot butterfly. These discoveries have had reverberations across ecological circles and have led to amazing conservation successes, despite a senior US Air Force official calling the tiny butterfly a national security threat.
Dr. Weiss has a PhD in Biological Sciences from Stanford University, and is the Founder and Chief Scientist at Creekside Science. He has 29 peer reviewed publications and has wide-ranging research experience in conservation and population biology, microclimate characterization, and statistical analysis.
To understand the checkerspot, we must understand the uniqueness of the land, so that's where we begin. The checkerspot had been in decline for decades, first due to direct reduction of habitat due to development and invasive non-native plants. But Dr. Weiss’s systematic study showed that something else was happening, leading him to unravel the mystery, revealing an unexpected relationship between cars, cows, and the checkerspot that we discuss today.
Dr. Weiss’s work also showed that landscape and population connectivity was a critical, and missing, component. This was at a time where connectivity was not well understood - and even today policymakers and the general public is often unaware of how important it is.
Ultimately, the story of the Bay Checkerspot and the cascade of conservation discoveries and actions is an amazing success story that continues to grow.
I hope you enjoy the discussion. I promise you’ll learn a bit about not only the checkerspot, but also soil ecology, the nitrogen cycle, the nuance of land management and grazing, tule elk, and much more.
Note that there was a bit of scratchy audio at a few spots, but stick with it because we did get it worked out.
FULL SHOW NOTES

Links
Bay Checkerspot
Bay Area Conservation Lands Network (CLN)
California Native Plant Society
California Rangeland Conservation Coalition
Committee for Green Foothills (now just Green Foothills)
Cows, Cars, and Checkerspot Butterflies - Dr. Weiss' 1999 Research Publication
Edith Allen at UC-Riverside
Howard Baker and the Snail Darter Controversy - wikipedia
The Moore Foundation
Valley Habitat Agency

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Music: Spellbound by Brian Holtz Music
License (CC BY 4.0): https://filmmusic.io/standard-license
Artist site: https://brianholtzmusic.com

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