A5057418603- Ecology and Vegetation Dynamics Studies
- Marine and fisheries research
- Climate variability and models
- Economic and Environmental Valuation
- Animal Ecology and Behavior Studies
- Marine and coastal ecosystems
- Species Distribution and Climate Change
- Marine animal studies overview
- Plant and animal studies
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Soil Geostatistics and Mapping
- Isotope Analysis in Ecology
- Marine Bivalve and Aquaculture Studies
- Wildlife Ecology and Conservation
- Fish Ecology and Management Studies
- Atmospheric and Environmental Gas Dynamics
- Bayesian Methods and Mixture Models
- Statistical Methods and Bayesian Inference
- Tropical and Extratropical Cyclones Research
- Geology and Paleoclimatology Research
- Meteorological Phenomena and Simulations
- Oceanographic and Atmospheric Processes
- Evolution and Paleontology Studies
- Complex Systems and Time Series Analysis
Woods Hole Oceanographic Institution
2014-2024
Clarkson University
2024
Woodwell Climate Research Center
2017
Google (United States)
2017
University of California, Berkeley
2014
National Bureau of Economic Research
2014
Potsdam Institute for Climate Impact Research
2014
University of California, Santa Barbara
2003
Smithsonian Institution
2003
Clark University
2002
Efforts at species conservation in the United States have tended to be opportunistic and uncoordinated. Recently, however, ecologists economists begun develop more systematic approaches. Here, problem of efficiently allocating scarce resources selection sites for biological reserves is addressed. With use county-level data on land prices incidence endangered species, it shown that accounting heterogeneity results a substantial increase efficiency terms either cost achieving fixed coverage or...
Abstract When wind speeds are 2–10 m s −1 , reflective contrasts in the ocean surface make oil slicks visible to synthetic aperture radar (SAR) under all sky conditions. Neural network analysis of satellite SAR images quantified magnitude and distribution Gulf Mexico from persistent, natural seeps Deepwater Horizon (DWH) discharge. This identified 914 seep zones across entire pre‐2010 data. Their ∼0.1 µm covered an aggregated average 775 km 2 . Assuming volume 77.5 3 over 8–24 h lifespan per...
Significance Ocean acidification (OA) threatens coral reef futures by reducing the concentration of carbonate ions that corals need to construct their skeletons. However, quantitative predictions under OA are confounded mixed responses in experiments and field observations. We modeled skeletal growth a dominant reef-building coral, Porites , as function seawater chemistry validated model against observational data. show directly negatively affects one component two-step process (density) but...
Large bycatches of harbour porpoises (Phocoena phocoena) occur in gillnet fisheries throughout the Northern Hemisphere. Several mitigation measures, including acoustic deterrent devices or ‘pingers’, have been used efforts to reduce this bycatch. The potential exists for habituate pingers, thus reducing their effectiveness over time. A field experiment was conducted test hypothesis that sound produced by pingers. Porpoise echolocation and movements were monitored around a mooring equipped...
A bstract Coastal cetaceans are subject to potential injury or disturbance from vessels. In Sarasota, Florida, where about 120 resident bottlenose dolphins, Tursiops truncatus , share the inshore waters with over 34,000 registered boats, is high. We assessed specific behavioral responses of individual dolphins boat traffic. conducted focal animal observations during opportunistic and experimental approaches involving 33 well‐known identifiable dolphins. Dolphins had longer interbreath...
1. The effect of disturbance on a biological community is commonly measured by change in an index structure. When such calculated from sample the community, it important to assess statistical significance observed change. 2. A simple randomization test described for testing can be used conjunction with any measure structure based species abundances as diversity indices. An example given
A statistical test for detecting a change in the behavior of an annual temperature series is presented. The based on two-phase regression model. By trading hypothesized time as unknown parameter, approach allows inference to be made about change. also avoids serious problem, called data-dredging, that can arise testing occurring at specified time. applied Southern Hemisphere temperatures, and hypothesis no cannot rejected.
Oceanic plankton have been hypothesized to occur in micropatches (<10 meters) that can a large impact on marine ecosystem dynamics. Towed video microscopy was used unobtrusively determine distributions of oceanic over continuum scales from microns hundreds meters. Distinct, taxa-specific aggregations measuring less than 20 centimeters were found for copepods but not nonmotile (cyanobacterial colonies) or asexual (doliolid phorozooids) forms, which suggests these small patches are related...
Abstract United States and Canadian governments have responded to legal requirements reduce human‐induced whale mortality via vessel strikes entanglement in fishing gear by implementing a suite of regulatory actions. We analyzed the spatial temporal patterns large whales Northwest Atlantic (23.5°N 48.0°N), 1970 through 2009, context management changes. used multinomial logistic model fitted maximum likelihood detect trends cause‐specific mortalities with time. compared number human‐caused...
Anthropogenic climate change has triggered impacts on natural and human systems world-wide, yet the formal scientific method of detection attribution been only insufficiently described. Detection is a fundamentally cross-disciplinary issue, involving concepts, terms, standards spanning varied requirements various disciplines. Key problems for current assessments include limited availability long-term observations, knowledge processes mechanisms involved in changing environmental systems,...
Drivers of phytoplankton blooms Despite decades study, there is little evidence to link increases in growth response springtime warming with the dynamics blooms. This lack understanding makes it difficult make predictions about global biogeochemical cycling climate change. Hunter-Cevera et al. analyzed over a decade data collected hourly from New England shelf between 2003 and 2016 (see Perspective by Worden Wilken). Blooms now occur 20 days earlier than at start observations, because...