Goal: Maintain or enhance existing San Diego ambrosia 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 chaparral vegetation communities.
Management units: 3, 4, 6, 8
Beginning in 2017, annually inspect San Diego ambrosia occurrences on Conserved Lands in (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.
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, 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 |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
Beginning in 2017, conduct routine management actions identified through the IMG monitoring at San Diego ambrosia occurrences on Conserved Lands in (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 such as protecting occurrences from disturbance through fencing, signage, and enforcement. | available for implementation | |
IMP-1 | Perform routine management activities such as protecting occurrences from disturbance through fencing, signage, and enforcement. | available for implementation | |
IMP-2 | Submit project metadata and management data to the MSP Web Portal. |
Criteria | Deadline year |
---|---|
Routine Management Completed as Needed Based Upon Monitoring Recommendations | 2021 |
Threat Name | Threat Code |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
In 2020, begin preparing a section for San Diego ambrosia 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, threats, genetic data, and results of existing restoration efforts. Minimum criteria for enhancement are to reduce invasive annual nonnative plants and thatch to less than 20% absolute cover within the occurrence.
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 San Diego ambrosia in the MSP Rare Plant Management Plan. | on hold | |
PRP-2 | Develop a conceptual model that identifies management actions to effectively reduce threats to San Diego ambrosia occurrences. | on hold | |
PRP-3 | Prioritize occurrences for management based upon an assessment of occurrence size, the potential for management to significantly reduce identified threats, and the availability of adjacent suitable habitat for occurrence expansion. | on hold | |
PRP-4 | Develop an implementation plan for San Diego ambrosia that prioritizes management actions for the next 5 years and details tasks, lead entities, responsibilities, and timelines, budgets. | on hold | |
PRP-5 | Submit project metadata, management datasets and the MSP Rare Plant Management Plan to MSP web portal | on hold |
Criteria | Deadline year |
---|---|
By 2021, Completed San Diego Ambrosia Section in the MSP Rare Plant Management Plan | 2021 |
Threat Name | Threat Code |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
In 2021, begin implementing highest priority management actions identified for San Diego ambrosia in the MSP Rare Plant Management Plan.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Using BMPs, conduct invasive plant control annually until success criteria are met and then as needed thereafter. | waiting for precedent action | |
IMP-2 | Submit project metadata, management data and monitoring data to MSP web portal. | waiting for precedent action |
Criteria | Deadline year |
---|---|
By 2025, >1 High priority Management Actions for San Diego Ambrosia initiated from the MSP Rare Plant Management Plan | 2021 |
Threat Name | Threat Code |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
In 2021, monitor the effectiveness of highest priority management actions for San Diego Ambrosia in 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 |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
In 2020, begin preparing a section for San Diego Ambrosia in the MSP Seed Collection, Banking and Bulking Plan to preserve genetic diversity and rescue occurrences in case of catastrophic disturbance. The plan should incorporate best science and management practices (e.g., Wall 2009, KEW 2016) and provide guidelines for collecting and storing 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 San Diego Ambrosia in the MSP Seed Collection, Banking and Bulking Plan. | On hold | |
PRP-2 | Prepare a seed collection plan to collect seeds over multiple years, collect seeds 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 from small occurrences (<1,000 plants) and to provide propagules to be used in management experiments, enhancement of existing occurrences, and establishment of new occurrences. | On hold | |
PRP-3 | The seed collection plan should include guidelines for collecting seeds from occurrences of sufficient size to accommodate harvest and based on genetic studies as available. Include provisions for collecting seed from unconserved populations planned for development. | On hold | |
PRP-4 | Include protocols and guidelines for collecting voucher specimens and submitting to the San Diego Natural History Museum (McEachern et al. 2007). | On hold | |
PRP-5 | Include guidelines for testing seeds for viability and to obtain information on dormancy and germination rates. | On hold | |
PRP-6 | Submit project metadata and MSP Seed Collection, Banking and Bulking Plan to the MSP Web Portal. | On hold |
Criteria | Deadline year |
---|---|
By 2021, Completed San Diego Ambrosia section in the MSP Seed Collection Banking and Bulking Plan | 2021 |
Threat Name | Threat Code |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |
Management units: 3, 4, 6, 8
In 2021, begin implementing the San Diego Ambrosia section in the MSP Seed Collection, Banking and Bulking Plan to collect and store seed 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 | |
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 |
Criteria | Deadline year |
---|---|
By 2025, >1 San Diego Ambrosia Seed Collection, Banking and Bulking initiated | 2021 |
Threat Name | Threat Code |
---|---|
Human uses of the Preserves | HUMUSE |
Invasive plants | INVPLA |
Loss of connectivity | LOSCON |
Urban development | URBDEV |