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Jonathan Young

San Francisco
Thursday, April 18
6:30 p.m. refreshments,
7p.m. program

Please Note: New venue for San Francisco Speaker Series

Sports Basement
1590 Bryant Street
San Francisco  94103

Snowy Egret (Egretta thula)helping out on a fish removal day at Mountain Lake

San Francisco’s Mountain Lake, neglected and degraded through centuries of urbanization, became a cesspool of invasive wildlife, toxic algae blooms, and poor water quality. Many native species that depended on the lake succumbed to local extinction, pushing the lake’s health further past the precipice. Beginning in the early 21 st century, the newly formed Presidio National Park began to actively shift the ecological trajectory by restoring the health and function of the lake. From terrestrial and aquatic vegetation to wildlife reintroductions and stormwater runoff management, join Presidio Trust Wildlife Ecologist Jonathan Young as he journeys through the socio-ecological past, present, and future of Mountain Lake.

Jonathan Young, a native southern Californian, began his relationship with the Presidio restoring habitat as a volunteer in 2010. During a three year stint as a Presidio ecological restoration intern, Jon completed his Master’s degree studying amphibian conservation and disease ecology at San Francisco State University. Throughout this time is when he became intimately involved in the Mountain Lake project. Upon completing his graduate studies he became the first Presidio Trust staff member fully dedicated to the park’s wildlife and has been continuing to build the Presidio’s wildlife program over the last five years.…

Samantha Arthur

Berkeley
Thursday, January 17
6:30 p.m. refreshments,
7p.m. program

The Tricolored Blackbird is a colonial breeder that is nearly endemic to California. Historically, these birds bred on wetlands in the Central Valley. As a result of the loss of 90 percent of the wetlands, Tricolors increasingly nest in agricultural fields. When nesting and farmers’ harvest schedules conflict high proportions of the Tricolor population are put at risk. Tricolored Blackbirds were listed as a threatened species under the California Endangered Species Act in April 2018 due to sharp, ongoing population declines. In this presentation Conservation Project Director, Samantha Arthur, will discuss Audubon California’s multi-pronged approach to save the Tricolored Blackbird. This approach includes creating new wetland habitat, working with dairy farmers to delay harvest until after chicks have fledged from nests, and advocating for protections under the state and federal Endangered Species Acts.

Samantha Arthur is a Conservation Project Director for Audubon California, focusing on improving wetlands management for the benefit of bird species in the Central Valley. She also manages Audubon California’s campaign to save the Tricolored Blackbird.

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