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Filters: First Letter Of Title is H and Author is Grossinger, R. [Clear All Filters]
The Historical Ecology of the Tijuana Estuary & River Valley (Restore America's Estuaries 2018 Conference Presentation).
2018. (14.16 MB)This talk was given at the 2018 Restore America's Estuary Conference in Long Beach, CA as part of a special session titled "Restoration Perspectives from the Tijuana River National Estuarine Research Reserve." It is based on information from the Tijuana River Valley Historical Ecology Investigation, a report published in 2017.
Though many areas of the binational Tijuana River watershed remain relatively undeveloped, land and water use changes over the past 200 years have resulted in significant ecological impacts, particularly in the more urbanized areas of the lower watershed. Drawing upon a diverse set of historical data, we reconstructed the ecological and hydrogeomorphic conditions of the lower Tijuana River valley prior to major Euro-American modification (ca. 1850) and documented major changes in habitat distribution and physical processes over this time. The river corridor, which was historically dominated by riparian scrub, today instead supports dense stands of riparian forest. The valley bottom surrounding the river corridor, which historically supported extensive seasonal wetlands, has largely been converted to drier habitat types and agricultural uses. The estuary, which historically supported large expanses of salt marsh and mudflat as well as seasonally dry salt flats, has retained much of its former extent and character, but has been altered by increased sediment input and other factors. The new information about the historical landscape presented here is relevant to a number of issues scientists and managers are dealing with today, including the conservation of endangered species, the fate of the valley’s riparian habitats after the recent invasion of invasive shot-hole borer beetles, and the effects on groundwater levels on native plant communities. We will also draw from other historical ecology studies conducted in Southern California to illustrate how the information about the past has been utilized to improve the functioning and resilience of nearby coastal ecosystems.
Presentation recording: available here.
Historical Ecology and Landscape Change in the Central Laguna de Santa Rosa. SFEI Contribution No. 820. San Francisco Estuary Institute - Aquatic Science Center: Richmond, CA.
2017. (94.51 MB) (39.07 MB)This study synthesizes a diverse array of data to examine the ecological patterns, ecosystem functions, and hydrology that characterized a central portion of the Laguna de Santa Rosa during the mid-19th century, and to analyze landscape changes over the past 150 years. The primary purpose of this study was to help guide restoration actions and other measures aimed at reducing nutrient loads within this portion of the Laguna de Santa Rosa watershed.
Historical Changes in Channel Alignment along Lower Laguna de Santa Rosa and Mark West Creek. SFEI: Richmond, CA.
2014. (9.78 MB)Historical Ecology of the lower Santa Clara River, Ventura River, and Oxnard Plain: an analysis of terrestrial, riverine, and coastal habitats. SFEI Contribution No. 641. SFEI: Oakland.
2011. (17.09 MB) (201.86 MB)Historical Wetlands of the Southern California Coast: An Atlas of US Coast Survey T-sheets, 1851-1889. SFEI Contribution No. 586. SFEI: Oakland.
2011. (202 MB) (196.79 MB) (5.42 MB) (4.95 MB)Historical Vegetation and Drainage Patterns of Western Santa Clara Valley: A technical memorandum describing landscape ecology in Lower Peninsula, West Valley, and Guadalupe Watershed Management Areas. SFEI Contribution No. 622. SFEI: Oakland.
2010. (43.77 MB) (1.29 MB)Historical Ecology of Lower San Francisquito Creek Phase 1. San Francisco Estuary Institute: Oakland, Ca.
2009. (3.99 MB)Historical Ecology Reconnaissance for the Lower Salinas River. SFEI Contribution No. 581. San Francisco Estuary Institute: Richmond. p 32.
2009. (44 MB)The Historical Ecology of Napa Valley: An Introduction. SFEI Contribution No. 557.
2008. (33.68 MB) (5.01 MB)Historical Ecology of South Santa Clara County: Preliminary Findings. A Technical Memorandum to the Santa Clara Valley Habitat Conservation Plan/Natural Community Conservation Plan. SFEI Contribution No. 527.
2007. (36.53 MB)Historical landscape ecology of an urbanized California valley: wetlands and woodlands in the Santa Clara Valley. Landscape Ecology 103-120.
2007. (609.88 KB)Historical Evidence of Freshwater Effects on the Plan Form of Tidal Marshlands in the Golden Gate Estuary, University of California: Santa Cruz, p 130 pp.
1995.