San Diego Management & Monitoring Program


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Orcutt's birds-beak Dicranostegia orcuttiana

Goal: Maintain or enhance existing Orcutt's bird's-beak occurrences and establish new occurrences, as needed, to ensure multiple conserved occurrences with self sustaining populations to increase resilience to environmental and demographic stochasticity, maintain genetic diversity, and ensure persistence over the long term (>100 years) in coastal sage scrub vegetation communities.

Regional NFO 2020 SL

MGT-PRP-SBPL DICORC-6

Management units: 1, 3

In 2020, begin preparing an Orcutt's bird's-beak section in the MSP Seed Collection, Banking and Bulking Plan that incorporates best science and management practices (Wall 2009, KEW 2016) to preserve genetic diversity and rescue occurrences in case of catastrophic disturbance. The plan should include recommendations from 2017-2019 seed collection and bulking efforts conducted by San Diego Zoo's Institute for Conservation Research and from the 2016-2017 genetic study to collect and store seeds over the long term at a permanent, established conservation seed bank (e.g., Institute for Conservation Research Native Plant Seed Bank, Rancho Santa Ana Botanic Garden Seed Conservation Program) and for providing a source of seeds for management purposes. The plan should include recommendations for: collecting and storing seeds for conservation banking; management oriented research; rescuing occurrences after catastrophic disturbances; and seed bulking and out-planting to augment extant occurrences or to establish new occurrences with consideration of genetic implications for population sustainability.
Action Statement Action status Projects
PRP-1 Consult the San Diego County Rare Plant Working Group made up of plant ecologists, geneticists, rare plant experts, land managers, restoration practitioners, seed banking and bulking practitioners, wildlife agencies, and other stakeholders to provide input and recommendations for the Orcutt's bird's-beak section in the MSP Seed Collection, Banking and Bulking Plan. some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
PRP-2 Prepare the seed collection plan to incorporate genetic study results and with recommendations to collect seeds over multiple years and several times within a season, accumulate seeds across populations, and to sample among habitats and ecological niches. Include guidelines for collecting and storing seeds along maternal lines and to provide propagules to be used in management experiments, enhancement of existing occurrences, and establishment of new occurrences. some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
PRP-3 The seed collection plan should have guidelines for collecting seeds from occurrences of sufficient size to accommodate harvest. Include provisions for collecting seed from unconserved populations planned for development. some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
PRP-4 Include protocols and guidelines for collecting voucher specimens and submitting to the San Diego Natural History Museum (McEachern et al. 2007). some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
PRP-5 Include guidelines for testing seeds for viability and to obtain information on dormancy and germination rates. some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
PRP-6 Submit project metadata and the MSP Seed Collection, Banking and Bulking Plan to MSP Web Portal. some occurrences are in progress California Plant Rescue (CaPR) - San Diego Zoo Global's Native Plant Seed Bank
Criteria Deadline year
By 2021, Completed Orcutt's Bird's-beak Section in the MSP Seed Collection, Banking and Bulking Plan 2021
Code Obj. code Statement
DICORC-1 MON-IMP-IMG From 2017 to 2021, inspect Orcutt's bird's-beak occurrences annually on Conserved Lands (see occurrence table) using the regional rare plant IMG monitoring protocol to record abundance and collect habitat and threats covariate data to determine management needs.
DICORC-3 MON-RES-GEN In 2017, complete the study begun in 2016 to characterize the population genetic structure, gene flow, and genetic diversity for Orcutt's bird's-beak occurrences (see occurrence table). The study will determine if there is evidence of mixed ploidy levels within or among occurrences; evaluate vulnerability of occurrences to genetic drift and loss of genetic diversity; assess the level of gene flow among occurrences; identify if there are signatures of genetic bottlenecks or low genetic diversity in occurrences that have undergone recent reductions; and look for evidence of local population adaptation. Based on the results of the genetic analyses, management recommendations will include whether common garden and reciprocal transplantations are necessary before proceeding with population enhancement or restoration and will provide specific recommendations for collecting, bulking and distributing seed to enhance existing occurrences or establish new occurrences.
DICORC-5 MGT-IMP-IEX From 2017 to 2019, enhance Orcutt's bird's-beak at the Cal Terraces/Dennery Canyon occurrence (see occurrence table). Invasive plant control should be conducted using BMPs so that invasive plants are reduced to less than or equal to 20% absolute cover within the occurrence’s occupied extent and adjacent suitable habitat.
DICORC-7 MGT-IMP-SBPL From 2017-2019, collect Orcutt's bird's-beak seed for conservation banking and bulk seed for enhancing and expanding the Cal Terraces/Dennery Canyon occurrence (see occurrence table). In 2021, begin implementing high priority actions for Orcutt's bird's-beak in the MSP Seed Collection, Banking and Bulking Plan to collect and store seeds at a permanent seed bank and to provide propagules as needed for management oriented research, existing population enhancement and establishment of new occurrences.
DICORC-8 MGT-PRP-MGTPL In 2020, begin preparing an Orcutt's bird's-beak section in the MSP Rare Plant Management Plan that prioritizes management actions to maintain large occurrences and expand at least 3 small occurrences on Conserved Lands (see occurrence table) based upon an assessment of data on occurrence status, habitat and threats. Prepare management recommendations for re-establishment of historic occurrences or establishment of new occurrences if determined to be necessary for gene flow and for long term persistence. Minimum criteria for enhancement are to reduce invasive annual nonnative plants and thatch to less than 20% absolute cover within the occurrence