San Diego Management & Monitoring Program


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Parry's tetracoccus Tetracoccus dioicus

Goal: Maintain or enhance existing Parry's tetracoccus 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 and coastal sage scrub vegetation communities.

regional and/or local NFO 2019 SS

MON-IMP-IMG TETDIO-1

Management units: 3, 8

In 2019, inspect Parry's tetracoccus occurrences 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.
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. on hold
IMP-2 Submit project metadata, monitoring datasets and management recommendations to the MSP Web Portal. on hold
Criteria Deadline year
Surveys Completed in 2019 with Management Recommendations 2021
Code Obj. code Statement
TETDIO-2 MGT-IMP-IMG Beginning in 2020, conduct routine management actions identified through the 2019 IMG monitoring at Parry's tetracoccus occurrences on Conserved Lands (see occurrence table). Depending on the type and level of threat, management should be conducted as needed, not necessarily every year, and using BMPs with precautions to do no harm.
local NFO 2020, 2021 SS

MGT-IMP-IMG TETDIO-2

Management units: 3, 8

Beginning in 2020, conduct routine management actions identified through the 2019 IMG monitoring at Parry's tetracoccus occurrences on Conserved Lands (see occurrence table). Depending on the type and level of threat, management should 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 and enforcement and controlling invasive non-native plant species to less than 20% absolute cover. On hold
IMP-2 Submit project metadata and management data to the MSP Web Portal. On hold
Criteria Deadline year
Routine Management Completed as Needed Based Upon Monitoring Recommendations 2021
Code Obj. code Statement
TETDIO-1 MON-IMP-IMG In 2019, inspect Parry's tetracoccus occurrences 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.
Regional NFO 2017 SS

MON-RES-SPEC TETDIO-3

Management units: 3, 8

In 2017, begin field research into soils and habitat relationships and conduct habitat suitability and climate change modeling for Parry's tetracoccus 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 Parry's Tetracoccus by 2018 2021
Code Obj. code Statement
TETDIO-1 MON-IMP-IMG In 2019, inspect Parry's tetracoccus occurrences 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.