A5088349914- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Environmental Justice and Health Disparities
- Geology and Paleoclimatology Research
- Oceanographic and Atmospheric Processes
- Climate variability and models
- Isotope Analysis in Ecology
- Ecology and Vegetation Dynamics Studies
- Risk Perception and Management
- Archaeology and ancient environmental studies
- Wildlife Ecology and Conservation
- Avian ecology and behavior
Florida State University
2023-2024
University of Mary Washington
2019
California Department of Fish and Wildlife
2017
Oklahoma State University
2017
Andrews University
2008
The El Niño–Southern Oscillation (ENSO) represents the largest source of year-to-year global climate variability. While Earth system models suggest a range possible shifts in ENSO properties under continued greenhouse gas forcing, many centuries preindustrial data are required to detect potential shift recent extremes. Here we reconstruct strength variations over last 7,000 years with new ensemble fossil coral oxygen isotope records from Line Islands, located central equatorial Pacific....
Abstract. The response of the hydrological cycle to anthropogenic climate change, especially across tropical oceans, remains poorly understood due scarcity long instrumental temperature and records. Massive shallow-water corals are ideally suited reconstructing past oceanic variability as they widely distributed tropics, rapidly deposit calcium carbonate skeletons that continuously record ambient environmental conditions, can be sampled at monthly annual resolution. Climate reconstructions...
We constructed differential equation models for the diurnal abundance and distribution of breeding glaucous-winged gulls (<em>Larus glaucescens</em>) as they moved among nesting non-nesting habitat patches. used time scale techniques to reduce equations algebraic connected field data. The explained data a function abiotic environmental variables with $R^{2}=0.57$. A primary goal this study is demonstrate utility methodology that can be by ecologists wildlife managers understand predict daily...
The oxygen isotope ratio (&#948;18O) of seawater is a powerful tracer the global water cycle, providing valuable information on exchange between ocean, atmosphere, and cryosphere as well ocean mixing processes. As such, observational &#948;18O data place constraints hydrologic changes in modern are essential for calibrating paleoclimate proxies based marine carbonates, an increasingly critical diagnostic tool assessing model performance skill isotope-enabled climate models. In...
Abstract. The 8.2 ka Event, a prominent climate anomaly that occurred approximately 8,200 years before present (8.2 ka), has been the subject of extensive research due to its potential implications for understanding characteristics and mechanisms abrupt change events. We characterize tropical hydroclimate response Event based on multiproxy compilation 61 records assess consistency between reconstructed changes those simulated by new isotope-enabled model simulation with iCESM. timing...
Abstract # 2017-168 Historically in California volunteers have been incorporated into oiled wildlife response since the late 1990s. Prior to Refugio Oil Spill (ROS) incident May 2015, Department of Fish and Wildlife’s (CDFW) Office Prevention Response (OSPR) had not managed Community Volunteers for non-wildlife activities, such as shoreline cleanup. In first days ROS event, members public who were interested volunteering became frustrated, part due poor communication regarding volunteer use...