A5034653468- Coastal wetland ecosystem dynamics
- Isotope Analysis in Ecology
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Geology and Paleoclimatology Research
- Coastal and Marine Dynamics
- Marine and fisheries research
- Ecology and Vegetation Dynamics Studies
- Microbial Community Ecology and Physiology
- Aquatic Invertebrate Ecology and Behavior
- Animal Ecology and Behavior Studies
- Peatlands and Wetlands Ecology
- Biological Control of Invasive Species
- Environmental DNA in Biodiversity Studies
- Marine and coastal ecosystems
- Coastal and Marine Management
- Plant responses to water stress
- Marine Bivalve and Aquaculture Studies
- Tropical and Extratropical Cyclones Research
- Methane Hydrates and Related Phenomena
- Botany, Ecology, and Taxonomy Studies
- Crustacean biology and ecology
- Oceanographic and Atmospheric Processes
- Fish Ecology and Management Studies
- Land Use and Ecosystem Services
California State University, Long Beach
2014-2024
California State University System
2014-2023
Schmid (Germany)
2021
San Francisco State University
2008-2011
Scripps Institution of Oceanography
2007-2008
13 C tracer experiments were conducted at sites spanning the steep oxygen, organic matter, and biological community gradients across Arabian Sea oxygen minimum zone, in order to quantify role that benthic fauna play short‐term processing of matter (OM) determine how this varies among different environments. Metazoan macrofauna macrofauna‐sized foraminiferans took up as much 56 ± mg added m −2 (685 added) over 2–5 d, some uptake was similar magnitude bacterial and/or total respiration....
Plant cover is a fundamental feature of many coastal marine and terrestrial systems controls the structure associated animal communities. Both natural human-mediated changes in plant influence abiotic sediment properties thus have cascading impacts on biotic community. Using clipping (structural) light (shading) manipulations two salt marsh vegetation zones (one dominated by Spartina foliosa one Salicornia virginica), we tested whether these species exert environmental factors examined...
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Carbon cycling by microbes has been recognized as the main mechanism of organic matter decomposition and export in coastal wetlands, yet very little is known about functional diversity specific groups decomposers (e.g., bacteria) salt marsh benthic trophic structure. Indeed, sediment bacteria remain largely a black box terms their roles within food web pathways. We used DNA stable isotope probing (SIP) utilizing 13C-labeled lignocellulose proxy to evaluate fate macrophyte-derived carbon...
Summary Ecological restoration must achieve functional as well structural recovery. Functional metrics for re‐establishment of trophic interactions can be used to complement traditional monitoring attributes. In addition, topographic effects on food web structure provide added information within a context; often, created sites may require spatial heterogeneity effectively match and function natural habitats. We addressed both these issues in our study successional development benthic...
We conducted an intercontinental biogeographic survey to analyze the effects of invasive plant species in its native and invaded ranges. Our study system included tidal wetlands colonized by Iris pseudacorus L. (yellow flag iris, Iridaceae) along salinity gradients two estuaries European (Guadalquivir Estuary) North American (San Francisco Bay-Delta hypothesized I. would impart more negative community-level impacts on diversity range compared range. results show that colonization has very...
Abstract. Foraminifera are an important component of benthic communities in oxygen-depleted settings, where they potentially play a significant role the processing organic matter. We tracked uptake 13C-labelled algal food source into individual fatty acids foraminiferal species Uvigerina ex. gr. semiornata from Arabian Sea oxygen minimum zone (OMZ). The tracer experiments were conducted on Pakistan margin during late/post monsoon period (August–October 2003). A monoculture diatom...
Wetland habitats are becoming increasingly scarce worldwide while experiencing exceptionally high levels of plant invasion. Invasive species affect ecosystems through numerous avenues, including acting as ecosystem engineers, contributing unique functional traits, and altering trophic dynamics. We examined the impacts invasive weed Lepidium latifolium on soil‐dwelling canopy‐dwelling invertebrate communities in a brackish marsh northern California. Invertebrate abundance, richness,...
Abstract The 2015–2016 El Niño provided insight into how low-inflow estuaries might respond to future climate regimes, including high sea levels and more intense waves. High waves water coupled with low rainfall along the Southern California coastline opportunity examine extreme ocean forcing impacts independently from fluvial events. From November 2015 April 2016, were measured in 13 estuaries, both intermittently closed perennially open varying watershed size, urban development, management...
Abstract For most of the scientific disciplines associated with coastal and estuarine research, workforce representation does not match demographics communities we serve, especially for Black, Hispanic or Latino, Indigenous peoples. This essay provides an overview this inequity identifies how a society can catalyze representational, structural, interactional diversity to achieve greater inclusion. Needed changes go beyond representational require intentional commitment build capacity through...
Abstract Aim Tidal wetlands are greatly impacted by climate change, and the invasion of alien plant species that being exposed to salinity changes longer inundation periods resulting from sea level rise. To explore capacity for Iris pseudacorus persist with rise, we initiated an intercontinental study along estuarine gradients in invaded North American range native European range. Location San Francisco Bay‐Delta Estuary; California, USA Guadalquivir River Andalusia, Spain. Methods We...
The Rush Ranch Open Space Preserve (Rush Ranch) is located at the northwestern edge of Potrero Hills and includes largest remaining undiked tidal wetland within Suisun Marsh region San Francisco Estuary. brackish wetlands grade into transitional vegetation undeveloped grasslands Hills, we describe diverse that reflects estuarine position, land use history, hydrogeomorphic complexity site.We present a useful framework for future study this Bay National Estuarine Research Reserve site. four...
Abstract Natural and managed ecosystems provide a variety of ecological, economic, cultural benefits; yet most have been altered by human activity such that they exhibit deficits in both biodiversity functionality. Identifying factors accelerating the recovery key species associated functions degraded systems is therefore global priority. We tested hypotheses explicitly incorporating into restoration design will lead to greater ecosystem function positive effects diversity strengthen over...
Most of Southern California's wetlands have disappeared despite being critical ecosystems with many valuable attributes. Many the that remain are in relatively urban areas, severely degraded, and may not function properly. Using hedonic spatial error models, we measure economic value living near an multi-use wetland Long Beach, California. Both sales prices estimated values used analysis. Results show proximity to increases residential property focus area. This analysis provides important...
Abstract Resource managers use habitat restoration to offset estuarine loss; however, there is limited information about how functionally successful restorations have been, particularly with respect their by mobile marine predators. Restoration monitoring efforts typically point-of-capture metrics assess fish community recovery and use, but this provides little insight into changes through time. Using translocation experiments, we integrated the movements of California Halibut Paralichthys...
The serpulid annelid Ficopomatus enigmaticus is found as a non-indigenous species in many subtropical and temperate habitats, where it often has major effects on the physical structure community ecology of invaded habitats. In northeastern Pacific, been present northern California since about 1920, but clearly established populations have not previously reported from southern California. We describe large population F. intertidal zone Los Angeles River, near Long Beach, California, much...
The implementation and monitoring of management strategies is integral to protect coastal marshes from increased inundation submergence under sea-level rise. Sediment addition one such strategy in which sediment added raise relative elevations, decrease tidal inundation, enhance ecosystem processes. This study looked at the plant invertebrate community responses over 12 months following a project on salt marsh located an urbanized estuary southern California, USA. experiencing local...
There is a need for consolidated source of information on native vegetation seed collection and germination strategies in southern California. Published literature these methods often experimental, species-specific, widely scattered throughout online print media. Planting restoration may to be site-specific; however, similar methodological approaches are utilized allowing the development general collection, storage, methods. A better understanding species-specific attributes growth processes...