Ecology
The San Gabriel River watershed has endangered Steelhead trout (Oncorhynchus mykiss). Genetic analysis of the steelhead show them to be of native and not hatchery stocks.
The headwaters of the San Gabriel River host one of the last wild populations of Mountain yellow-legged frogs (Rana muscosa), which was threatened with extinction by non-native trout, bullfrogs and a chytrid fungus that swept through the San Gabriel Mountains in the 1960s called Batrachochytrium dendrobatidis. Removal of the trout has led to a recent rebound in the river's headwaters from five individuals two years ago to over 70 today.
Read more about this topic: San Gabriel River (California)
Famous quotes containing the word ecology:
“... the fundamental principles of ecology govern our lives wherever we live, and ... we must wake up to this fact or be lost.”
—Karin Sheldon (b. c. 1945)