Vernal Pools

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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. - PowerPoint PPT Presentation

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  • Vernal Pools

    What?How?Where?Why?

  • What is a vernal pool?Vernal is derived from the Latin word for springA vernal pool is a seasonal pool that is present in the spring and dries up in late spring or summerFebruaryMarchJuneNovember

  • How and where?Remnants of lava plateau along Hwy 15 corridorSurrounding softer geology erodes leaving mesasDense; less porousExamples:Mira MesaMiramarSanta Rosa Plateau

  • Why are vernal pools important?

    Sustainability of an unique ecosystem

    Fairy ShrimpWithin days, dormant embryos (that can be up to many centuries old) develop into adultsCopepods, Daphnia, other crustaceans, and flatwormsInsects & insect larvaeAquatic snailsTadpoles, Frogs, toadsSnakesBirds

  • Why dont we see more of these?Most vernal pools are goneLess than 10% remain in Southern CaliforniaHuman impactDevelopmentPollutionbut with a bit of education, protection, and restoration

  • Miramar Campus

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