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The Palisades fire, which has chewed through more than 23,000 acres, burned down to the water in places, destroying trees and riparian canopy right along the edges.

This oasis, part of the Sepulveda Basin Recreation Area, is one of the few spots where the Los Angeles River isn’t straitjacketed in concrete, allowing it to flow unencumbered through a thriving riparian forest.

Loss of riparian habitat due to development, stream channelization and other factors has robbed the mountain frogs of habitat.

To this day, we’re still spending money to remove that concrete and restore lost riparian ecosystems.

These rich ecosystems — including spring-fed streams, wetlands, riparian forests and oak woodlands — are vulnerable to declines in groundwater levels.