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Pacific Southwest Research Station


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Pacific Southwest
Research Station

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Albany, CA 94710-0011
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Renewing and refining the Tahoe yellow cress Conservation Strategy: incorporating new science and management tools

Principal Investigators:
Alison Stanton, Consultant
Bruce Pavlik, Royal Botanic Gardens Kew

Proposal [pdf]

Final Report [pdf]

Project Summary

Tahoe yellow cress (TYC) is a rare member of the mustard family known only from the shores of Lake Tahoe in California and Nevada. Impacts from recreation and development led to conservation concerns as early as 1974; therefore, TYC was listed as endangered by the State of California and as critically endangered by the State of Nevada in 1982. In 1999, after a period of sustained high lake levels in which suitable habitat was inundated and the number of sites occupied by TYC declined, the U.S. Fish and Wildlife Service placed the species on the candidate list under the Endangered Species Act of 1973, as amended. In response, a multi-agency and private interest group task force was formed to develop and implement a Conservation Strategy to promote the recovery and conservation of TYC through adaptive management and cost sharing.

In August 2002, the Conservation Strategy for Tahoe yellow cress was finalized, and it has guided the adaptive management and conservation of TYC for more than 12 years. This revised Conservation Strategy for Tahoe yellow cress will improve TYC adaptive management and continue the cooperation and conservation initiated in 2002.

TYC management goals and objectives have been modified to accommodate the different management approaches required on public and private property and to reflect a shift away from promoting the metapopulation dynamic of the species and toward managing persistence. The goals are as follows:

  • Goal 1: Protect TYC plants and habitat on public lands
  • Goal 2: Promote stewardship, protection, and awareness of TYC on private lands
  • Goal 3: Manage TYC populations to promote persistence
  • Goal 4: Utilize key management questions (KMQs) to direct research that supports management and conservation
  • Goal 5: Continue long-term monitoring using an adaptive survey strategy
  • Goal 6: Utilize an adaptive management framework
Last Modified: Aug 22, 2016 01:44:18 PM