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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Surrounding softer geology erodes leaving mesas
Dense; less porous
Santa Rosa PlateauHow and where?
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
BirdsWhy are vernal pools important?
Less than 10% remain in Southern California
…but with a bit of education, protection, and restorationWhy don’t we see more of these?