Goal: Maintain or enhance existing Otay tarplant occurrences 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 native and non native grassland vegetation communities.
Management units: 3
In 2017, begin annual inspections of extant occurrences of Otay tarplant on Conserved Lands (see occurrence table) using the regional rare plant IMG monitoring protocol to record spatial extent, estimate abundance, and collect habitat and threat covariate data to determine management needs.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Based upon occurrence status and threats, determine if routine management or more intensive management is warranted. | some occurrences are in progress | |
IMP-2 | Submit project metadata, monitoring datasets and management recommendations to the MSP web portal. | some occurrences are in progress |
Criteria | Deadline year |
---|---|
Surveys Completed Annually with Management Recommendations | 2021 |
Threat Name | Threat Code |
---|---|
Altered fire regime | ALTFIR |
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Urban development | URBDEV |
Management units: 3
Beginning in 2017, conduct routine management actions identified through the annual IMG monitoring at Otay tarplant occurrences on Conserved Lands (see occurrence table) . Depending on the type and level of threat, management should only be conducted as needed, not necessarily every year, and using BMPs with precautions to do no harm.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Perform routine management activities as needed, such as protecting occurrences from disturbance through enforcement and controlling invasive non-native plant species to =20% absolute cover. | available for implementation | |
IMP-2 | Submit project metadata, monitoring and management recommendations to the MSP web portal. | available for implementation |
Criteria | Deadline year |
---|---|
Routine Management Completed as Needed Based Upon Monitoring Recommendations | 2021 |
Threat Name | Threat Code |
---|---|
Altered fire regime | ALTFIR |
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Urban development | URBDEV |
Management units: 3
In 2017 continue the collaboration with the South County Grasslands Project initiated in 2014 to develop BMPs for landscape-scale restoration of Otay tarplant habitat in MU3 that includes testing methods of seeding and invasive plant control so that nonnative plants and thatch are reduced to less than 20% relative cover and thatch to <5 cm tall and native plants to at least 25% relative cover. These percent cover criteria could be revised based on data collected from an acceptable reference site.
Action | Statement | Action status | Projects |
---|---|---|---|
DEV-1 | Conduct experiments using mowing, prescribed burns herbicide and potentially grazing to control invasive non-native grasses and forbs at a landscape-scale and to compare drill seeding versus hand broadcast seeding in order to determine economical and effect. | in progress | |
DEV-2 | Based upon experiment results, develop explicit BMPs for the restoration of Otay tarplant. Submit project metadata, monitoring datasets and BMP report to MSP web portal. | in progress |
Criteria | Deadline year |
---|---|
BMPs Developed for Restoration of Otay tarplant by 2017 | 2021 |
Threat Name | Threat Code |
---|---|
Altered fire regime | ALTFIR |
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3
In 2017, continue a study begun in 2016 to characterize the population genetic structure, gene flow, and genetic diversity for Otay tarplant 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.
Action | Statement | Action status | Projects |
---|---|---|---|
RES-1 | Use BMPs to collect plant material for genetic samples at conserved Otay tarplant occurrences (Table 2-3.3). | in progress | |
RES-2 | Evaluate the overall long-term genetic trajectory for Otay tarplant | in progress | |
RES-3 | Hold a workshop of scientists, rare plant experts, and land managers to develop management recommendations based upon the results of genetic analyses. | waiting for precedent action | |
RES-4 | Submit project metadata, genetic datasets and analyses, and report with management recommendations to the MSP Web Portal. | waiting for precedent action |
Criteria | Deadline year |
---|---|
By 2018, Completed Genetic Study for Otay Tarplant with Management Recommendations | 2021 |
Threat Name | Threat Code |
---|---|
Loss of connectivity | LOSCON |
Management units: 3
In 2019, begin implementing the MSP Seed Collection, Banking and Bulking Plan for Otay tarplant 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.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Bulk seed at a qualified facility for enhancement, expansion, establishment or transplantation projects using seed from genetically appropriate donor accessions in the propagation seed bank collection. | some occurrences are in progress | |
IMP-2 | Maintain records for collected seed to document donor and receptor sites, collection dates and amounts. Submit seed collection, storage and bulking data to the MSP Web Portal. | some occurrences are in progress |
Criteria | Deadline year |
---|---|
By 2023, > 1 Highest Priority Action Implemented for Otay Tarplant from the MSP Seed Collection, Banking and Bulking Plan | 2021 |
Threat Name | Threat Code |
---|---|
Altered fire regime | ALTFIR |
Climate change | CLICHN |
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3
In 2017, continue field research into soils and habitat relationships and development of habitat suitability and climate change models for Otay tarplant and other edaphic endemic plants to better understand habitat requirements and to identify and prioritize geographic areas important for connectivity, restoration, and range shifts due to climate change and other threats.
Action | Statement | Action status | Projects |
---|---|---|---|
RES-1 | Test soils at potential expansion sites and compare to occupied reference sites to determine site suitability based on soils. | In progress | Enhancing the Resilience of Edaphic Endemic Plants |
RES-2 | Prepare habitat suitability models under current environmental conditions and for different scenarios of climate change to delineate potential future habitat. | In progress | Enhancing the Resilience of Edaphic Endemic Plants |
RES-3 | Collect covariate data on vegetation composition and cover (alliance and association-level mapping), soils, invasive plants and other threats for selected populations. | In progress | Enhancing the Resilience of Edaphic Endemic Plants |
RES-4 | Prioritize locations for conservation, management, and future surveys based on predicted distributions and environmental correlates. | In progress | Enhancing the Resilience of Edaphic Endemic Plants |
RES-5 | Submit project metadata, monitoring data, habitat models, analyses, and report to MSP web portal. | In progress | Enhancing the Resilience of Edaphic Endemic Plants |
Criteria | Deadline year |
---|---|
Refined Models and Prioritized Future Survey Locations for Otay Tarplant by 2018 | 2021 |
Threat Name | Threat Code |
---|---|
Climate change | CLICHN |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |