Goal: Maintain large populations, enhance small populations, and establish new populations of San Diego thornmint or pollinator habitat to buffer against environmental stochasticity, maintain genetic diversity, and promote connectivity, thereby enhancing resilience within and among MUs over the long-term (>100 years) in native habitats.
Management units: 3, 4, 5, 6
Starting in 2017, reduce the potential impact of fire for at risk large populations of San Diego thornmint (see occurrence table) by reducing fuel loads of invasive annuals
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Manage thatch and invasive annuals every 3-5 years to reduce fire threat for populations of San Diego thornmint most at risk of fire (populations with ignition probability or fire frequency > 3 or that have burned since 2003) | available for implementation | |
IMP-2 | Submit project metadata, monitoring datasets and report with management actions to the MSP Web Portal. | waiting for precedent action |
Criteria | Deadline year |
---|---|
Fuel Loads and Invasive Grasses Reduced for at Risk Populations | 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, 4, 5, 6
Beginning in 2017, annually inspect conserved populations of San Diego thornmint (see occurrence table) using the regional rare plant IMG monitoring protocol to record abundance and collect covariate habitat and threats data to determine management needs.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Based upon occurrence status and threats, determine management needs including whether routine management or more intensive management is warranted. | some occurrences are in progress | |
IMP-2 | Submit project metadata, occurrence status, habitat and threats data, 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, 4, 5, 6
Beginning in 2017, conduct routine management actions identified through the IMG monitoring at San Diego thornmint 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 | San Diego Thornmint Restoration |
IMP-2 | Submit project metadata and management data to MSP web portal. | available for implementation | San Diego Thornmint Restoration |
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, 4, 5, 6
In 2019, begin implementing highest priority management actions identified for San Diego thornmint in the MSP Rare Plant Management Plan.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Submit project metadata, management datasets, and report to the MSP Web Portal. | waiting for precedent action |
Criteria | Deadline year |
---|---|
By 2023, =2 High Priority Management Actions Implemented for San Diego Thornmint from the MSP Rare Plant Management 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, 4, 5, 6
In 2019, begin monitoring the effectiveness of implementation of the highest priority management actions identified in the San Diego thornmint section of the MSP Rare Plant Management Plan.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Submit metadata, management effectiveness datasets, analyses, and report to the MSP Web Portal. | waiting for precedent action |
Criteria | Deadline year |
---|---|
Effectiveness of High Priority Management Actions Determined | 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, 4, 5, 6
In 2019, begin implementing the MSP Seed Collection, Banking and Bulking Plan for San Diego thornmint 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. | waiting for precedent action | California Plant Rescue (CaPR) - San Diego Zoo Wildlife Alliance's Native Plant Seed Bank |
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. | waiting for precedent action | California Plant Rescue (CaPR) - San Diego Zoo Wildlife Alliance's Native Plant Seed Bank |
Criteria | Deadline year |
---|---|
By 2023, =2 Highest Priority Actions Implemented for San Diego thornmint from the MSP Seed 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 |