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    • May 16, 2019

    Like California, New Zealand’s biodiversity continues to decline. New Zealand’s unique flora and fauna has been severely impacted by introduced mammalian predators and modified landscapes. Utilizing behavioral science research, New Zealand’s Department of Conservation is focusing on the role people can play in mitigating the decline. Case studies will include human-animal conflict, domestic cats and dogs, forest visitors spreading pathogens, and activating urban residents.

    Science Institute logoDate: Tuesday, May 21, 1-3 p.m.
    Location: Room 1131, 1416 9th Street, Sacramento CA
    link opens in new windowRegister to view in-person or online.

    Questions? Contact:

    Categories: Education and Awareness
    • 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
    • May 9, 2019

    Number of Element Occurrences in Current Distribution: 93,015
    Number of New Element Occurrences Added Since Last Distribution: 208
    Number of Element Occurrences Updated Since Last Distribution: 315
    Number of Source Documents Added: 1,509

    What we've been working on:


    • Allium jepsonii (Jepson’s onion)
    • Allium tuolumnense (Rawhide Hill onion)
    • Arctostaphylos myrtifolia (Ione manzanita)
    • Astragalus claranus (Clara Hunt’s milk-vetch)
    • Ceanothus foliosus var. viejasensis (Viejas Mountain ceanothus)
    • Chorizanthe howellii (Howell's spineflower)
    • Collomia rawsoniana (Rawson’s flaming trumpet)
    • Crocanthemum greenei (island rush-rose)
    • Epilobium nivium (Snow Mountain willowherb)
    • Fritillaria pluriflora (adobe-lily)
    • Grusonia pulchella (beautiful cholla)
    • Heterotheca sessiliflora ssp. sessiliflora (beach goldenaster)
    • Ivesia campestris (field ivesia)
    • Orcuttia tenuis (slender Orcutt grass)
    • Trifolium buckwestiorum (Santa Cruz clover)
    • Verbena californica (Red Hills vervain)


    • Entosphenus lethophagus (Pit-Klamath brook lamprey)
    • Euphydryas editha quino (quino checkerspot butterfly)
    • Oncorhynchus mykiss gilberti (Kern River rainbow trout)
    • Rana boylii (foothill yellow-legged frog)
    • Rana cascadae (Cascades frog)
    • Spea hammondii (western spadefoot)

    Categories: Monthly Updates