Vernal Pools. What? How? Where? Why? . What is a vernal pool?. Vernal is derived from the Latin word for spring A vernal pool is a seasonal pool that is present in the spring and dries up in late spring or summer. February. March. June. November.
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Remnants of lava plateau along Hwy 15 corridor
Surrounding softer geology erodes leaving mesas
Dense; less porous
Santa Rosa Plateau
Sustainability of an unique ecosystem
Within days, dormant embryos (that can be up to many centuries old) develop into adults
Copepods, Daphnia, other crustaceans, and flatworms
Insects & insect larvae
Tadpoles, Frogs, toads
Most vernal pools are gone
Less than 10% remain in Southern California
…but with a bit of education, protection, and restoration