CNDDB News Blog

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  • November 4, 2019

Our database was founded by The Nature Conservancy 40 years ago, in November of 1979. Two years later the California Department of Fish and Wildlife (then California Department of Fish and Game) took over the CNDDB. Our department has been continuously updating the database ever since.

The earliest work was done by hand on paper maps. Our processes have shifted year-by-year as new technology has been made available. Our methods have evolved, but throughout it all we have remained committed to our original mission of delivering information on imperiled species to scientists, decision makers, and the public.

If you could go back into the 1970’s for a moment, what would people say if you told them you could pull a phone from your pocket, use it to snap a photo of a flower, and also record your precise latitude and longitude at that same instant?

What will the next 40 years hold? Change, for sure. Expect new technology, increased human population, climate change, and…?

Unexpected things will happen!

Topographic map with hand-drawn CNDDB element occurrences from the middle 1980's.
Topographic map with hand-drawn CNDDB element occurrences from the middle 1980's.

Categories: General
  • May 14, 2019

Collage of Rancho Seco pond, tadpole shrimp, purple Downingia flowers, California tiger salamander, and garter snake
Photo credit: Abigail Cramer, Rachel Powell, and Annie Chang

A couple of CNDDB staff recently volunteered to accompany permitted biologists from Area West Environmental to survey for California tiger salamanders at the SMUD Nature Preserve Mitigation Bank at Rancho Seco. Yearly monitoring visits to a mitigation site are vital to evaluating the success of restoration efforts, and often required by USFWS when approving a mitigation plan for threatened or endangered species.

The mitigation bank consists of both natural and man-made vernal pools which provide habitat for many native plants and animals, including the federally listed California tiger salamander. The California tiger salamander spends most of its life underground, only emerging after winter rains to breed and lay eggs in seasonal pools. When the SMUD mitigation bank first restored pools, California tiger salamanders were only found in pools near the margins of the restoration area, but today they can be found throughout the site.

We visited constructed vernal pools on the property to check for presence of salamander larvae and record measures of habitat quality. Not only did we find California tiger salamanders, we also observed vernal pool tadpole shrimp (federally listed as Endangered), western spadefoot (California Species of Special Concern), western toad, clam shrimp, garter snake, and chorus frog.

Thank you to Becky, Area West, and SMUD for the amazing opportunity to gain hands-on experience, and for submitting data to the CNDDB!

While much of the mitigation bank is closed to the public, the 7-mile link opens in new windowHoward Ranch Trail traverses portions of the SMUD Nature Preserve, showcasing beautiful natural vernal pools and oak woodlands.

Categories: General
  • March 28, 2019

The link opens in new windowSpotted Owl Observations Database Management Framework (PDF) is now available. It provides information on key database topics including:

  • Database contents
  • Database limitations
  • Activity center information
  • Addressing data issues
  • Contributing Data
  • Barred Owl Observations Database

The framework may be updated to reflect future changes to spotted owl management or regulatory guidelines. Substantial updates will be announced here on the CNDDB News page.
 

Categories: General