Goal: Maintain, enhance and restore oak woodlands on Conserved Lands in the MSPA that support or have the potential to support VF species (i.e., Engelmann Oak, California newt) and coast live oak woodlands that incidentally benefit a diverse array of other MSP species (e.g., Harbison's dun skipper, California newt, pallid bat, mountain lion) so that the vegetation communities have high ecological integrity, and these species are resilient to invasive pests and disease pathogens, environmental stochasticity, threats and catastrophic disturbances, such as very large wildfires and intense and prolonged drought, and will be likely to persist over the long term (>100 years).
Management units: 2, 3, 4, 5, 6, 8, 9, 10, 11
In 2021, conduct Engelmann oak woodland monitoring as part of implementation of the Oak Woodland Vegetation Monitoring Plan on Conserved Lands in the MSPA.
Action | Statement | Action status | Projects |
---|---|---|---|
IMP-1 | Submit project metadata, monitoring datasets and reports to the MSP web portal | waiting for precedent action |
Criteria | Deadline year |
---|---|
Oak Woodland Vegetation Monitoring Plan implemented 2021 | 2021 |
Threat Name | Threat Code |
---|---|
Altered fire regime | ALTFIR |
Altered hydrology | ALTHYD |
Climate change | CLICHN |
Herbivory/predation | |
Invasive animals | INVANI |
Invasive plants | INVPLA |
Loss of ecological integrity | ECOINT |
Parasitism/disease | |
Urban development | URBDEV |
File name | Lead Author | Year | Type |
---|---|---|---|
Barnett Ranch Open Space Preserve Biological Resources Report | 2004 | report | |
Biological Diversity Baseline Report FOR THE Lawrence and Barbara Daley Preserve County of San Diego | 2011 | report | |
MSP Roadmap Dec 31, 2016: VF Species and Vegetation Goals, Objectives, and Actions | San Diego Management and Monitoring Program | 2016 | other |
PRESERVE MANAGEMENT PLAN for the MUROYA PROPERTY CITY OF CARLSBAD, CALIFORNIA | Hayworth PhD, Anita M. | 2011 | report |
Salvation Army Divisional Camp and Retreat Biological Report | report |
Eastern Los Angeles County to northwestern Baja California, Mexico [1]. Smallest distribution of any California oak species.
Forty-six occurrences on Conserved Lands in MUs 3 (Crest-Worley Preserve, Hollenbeck Canyon Wildlife Area, Lawrence and Barbara Daley Preserve, Otay Mountain Ecological Reserve, Otay Mountain Wilderness Area, Otay Ranch Preserve, Sycamore Canyon Preserve, Sycuan Peak Ecological Reserve, Wright's Field), 4 (BLM, Boulder Oaks Preserve, Cleveland National Forest, El Capitan Open Space Preserve, El Capitan Reservoir Open Space, Louis A. Stelzer County Park, Mt. Woodson, Mt. Gower Preserve, SDG&E Sunrise Power Link Parcels, Simon Preserve), 5 (Boden Canyon Ecological Reserve, Cleveland National Forest, Hellhole Canyon Preserve, Ramona Grasslands Preserve, Sutherland Reservoir Open Space), 6 (Daley Ranch Open Space Preserve, Hodges Reservoir Open Space, Lake Wolford, Lake Wolford Watershed), 8 (BLM, Cleveland National Forest, Margarita Peak, Mount Olympus Preserve), 9 (Cleveland National Forest, Santa Ysabel East Open Space), 10 (Cleveland National Forest, Eagle Peak Preserve, Mesa Grande Easement, Santa Ysabel West Open Space Preserve), and 11 (Barrett Reservoir Open Space, Cleveland National Forest, Potrero Park, Sunrise Power Link Parcels).
None [1].
Chaparral, cismontane woodland, riparian woodland, valley and foothill grassland [2]. Found on mesas with elevation range of 700 -1250 meters [3].
Fagaceae family [2]. Known to hybridize with scrub oak species (Q. cornelius-mulleri, Q. berberidifolia, and Q. durata) [3].
Semi-deciduous tree [4]. Produces acorns within 1 year [5]. May be better adapted for establishment in more exposed habitats than Q. agrifolia because it is less sensitive to moisture loss, will germinate with little or no additional water uptake, is self-rooting, and has delayed shoot development.
Bloom period March-June [2]. Acorn drop occurs September-November [5].
Wind-pollinated [3]. No persistent seed bank since acorns do not survive more than 1 year [5].
Development [2] and lack of natural recruitment due to grazing [4]. Competition for underground resources between oak seedlings and exotic grasses.
As a white oak, it is at low risk from Goldspotted Oak Borer (Agrilus auroguttatus) [1]. Poor host plant for grasshoppers [4].
[1] Drennen, K. L. 2011. “Western Riverside County Multiple Species Habitat Conservation Plan ( MSHCP ) Biological Monitoring Program Engelmann Oak ( Quercus Engelmannii ) Survey Report 2005.†Riverside, CA.
[2] CNPS, Rare Plant Program. 2016. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. http://www.rareplants.cnps.org, accessed 12 September 2016.
[3] Ortego, J., E. C. Riordan, P. F. Gugger, and V. L. Sork. 2012. “Influence of Environmental Heterogeneity on Genetic Diversity and Structure in an Endemic Southern Californian Oak.†Molecular Ecology 21 (13): 3210–23. doi:10.1111/j.1365-294X.2012.05591.x.
[4] Dunning, C. E., R. A. Redak, and T. D. Paine. 2003. “Preference and Performance of a Generalist Insect Herbivore on Quercus Agrifolia and Quercus Engelmannii Seedlings from a Southern California Oak Woodland.†Forest Ecology and Management 174: 593–603. doi:10.1016/S0378-1127(02)00187-1.
[5] Tyler, C. M., B. Kuhn, and F. W. Davis. 2006. “Demography and Recruitment Limitations of Three Oak Species in California.†The Quarterly Review of Biology 81 (2): 127–52. doi:10.1086/506025.
[6] Snow, G E. 1991. “Germination Characteristics of Engelmann Oak and Coast Live Oak from the Santa Rosa Plateau, Riverside County, California.†Vol. USDA Forest.