A5049218429- Marine and fisheries research
- Avian ecology and behavior
- Marine animal studies overview
- Oceanographic and Atmospheric Processes
- Marine Bivalve and Aquaculture Studies
- Isotope Analysis in Ecology
- Climate variability and models
- Fish Ecology and Management Studies
- Marine and coastal ecosystems
- Marine and coastal plant biology
- Wildlife Ecology and Conservation
- Coral and Marine Ecosystems Studies
- Ocean Acidification Effects and Responses
- Rangeland and Wildlife Management
- Arctic and Antarctic ice dynamics
- Animal Behavior and Reproduction
- Species Distribution and Climate Change
- Marine Biology and Ecology Research
- Music Technology and Sound Studies
- Water Quality and Resources Studies
- Cephalopods and Marine Biology
- Coastal and Marine Management
- Musicology and Musical Analysis
- Atmospheric and Environmental Gas Dynamics
- Genetic diversity and population structure
Farallon Institute
2015-2024
Stanford University
1999-2023
University of Bergen
2023
NOAA National Marine Fisheries Service Alaska Fisheries Science Center
2023
Norwegian Institute for Water Research
2023
Bay Institute
2013-2022
Monterey Bay Aquarium Research Institute
2021
NOAA National Marine Fisheries Service Southwest Fisheries Science Center
2010-2021
National Oceanic and Atmospheric Administration
2021
Oregon State University
2010-2021
Climate change challenges organisms to adapt or move track changes in environments space and time. We used two measures of thermal shifts from analyses global temperatures over the past 50 years describe pace climate that species should track: velocity (geographic isotherms time) shift seasonal timing temperatures. Both are higher ocean than on land at some latitudes, despite slower warming. These indices give a complex mosaic predicted range phenology deviate simple poleward migration...
Climate change is driving changes in the physical and chemical properties of ocean that have consequences for marine ecosystems. Here, we review evidence responses life to recent climate across regions, from tropical seas polar oceans. We consider observed calcification rates, demography, abundance, distribution phenology species. draw on a database impacts species, supplemented with Fifth Assessment Report Intergovernmental Panel Change. discuss factors limit or facilitate species'...
Determining the form of key predator-prey relationships is critical for understanding marine ecosystem dynamics. Using a comprehensive global database, we quantified effect fluctuations in food abundance on seabird breeding success. We identified threshold prey (fish and krill, termed "forage fish") below which seabirds experience consistently reduced more variable productivity. This response was common to all seven ecosystems 14 bird species examined within Atlantic, Pacific, Southern...
In 1990, Andrew Bakun proposed that increasing greenhouse gas concentrations would force intensification of upwelling-favorable winds in eastern boundary current systems contribute substantial services to society. Because there is considerable disagreement about whether contemporary wind trends support Bakun's hypothesis, we performed a meta-analysis the literature on intensification. The preponderance published analyses suggests have intensified California, Benguela, and Humboldt upwelling...
About 62,000 dead or dying common murres (Uria aalge), the trophically dominant fish-eating seabird of North Pacific, washed ashore between summer 2015 and spring 2016 on beaches from California to Alaska. Most birds were severely emaciated and, so far, no evidence for anything other than starvation was found explain this mass mortality. Three-quarters in Gulf Alaska remainder along West Coast. Studies show that only a fraction die at sea typically wash ashore, we estimate total mortality...
Changes in the amplitude and phasing of seasonal events (phenology) can affect functioning marine ecosystems. Phenology plays a particularly critical role eastern boundary ecosystems, which are driven largely by cycle coastal upwelling. Here we develop describe set indicators that quantify timing, evolution, intensity, duration upwelling California Current large ecosystem (CCLME). There is significant interannual variability characteristics during 1967–2007, with extended periods high...
Abstract Upwelling is critical to the biological production, acidification, and deoxygenation of ocean's major eastern boundary current ecosystems. A leading conceptual hypothesis projects that winds induce coastal upwelling will intensify in response increased land‐sea temperature differences associated with anthropogenic global warming. We examine this using an ensemble coupled, ocean‐atmosphere models find limited evidence for intensification upwelling‐favorable or atmospheric pressure...
The IPCC AR5 provided an overview of the likely effects climate change on Eastern Boundary Upwelling Systems (EBUS), stimulating increased interest in research examining issue. We use these recent studies to develop a new synthesis describing impacts EBUS. find that model and observational data suggest coastal upwelling-favorable winds poleward portions EBUS have intensified will continue do so future. Although evidence is weak are presently available, future projections show this pattern...
Abstract Climate change and increased variability intensity of climate events, in combination with recovering protected species populations highly capitalized fisheries, are posing new challenges for fisheries management. We examine socio-ecological features the unprecedented 2014–2016 northeast Pacific marine heatwave to understand potential causes record numbers whale entanglements central California Current crab fishery. observed habitat compression coastal upwelling, changes availability...
(1) We studied age-specific breeding success of western gulls (Larus occidentalis) on south-east Farallon Island, California in relation to annual variation food abundance, 1983-89. assessed yearly reproductive performance the basis clutch initiation date, size, hatching and fledging success, number chicks raised independence. categorized age parent into three groups: young, middle-aged old. (2) Mature birds initiated earlier laid larger clutches; they fledged more than younger as a result...
In this study, we present the levels of organochlorine (∑DDT, ∑HCH, ∑chlordane, HCB, and ∑PCBs) metal (Pb, Hg, Se) contaminants their relationship to stable carbon nitrogen isotope values in Gulf Farallones marine food web. This web consisted two species euphausiids (Euphausia pacifica Thysanoessa spinifera), fish [short-bellied rockfish (Sebastes jordani) anchovy (Engraulis mordax)], four bird [common murre (Uria aalge), Brandt's cormorant (Phalacrocorax penicillatus), rhinoceros auklet...
In spring‐summer 2005, anomalous atmospheric‐oceanographic coupling caused unprecedented reproductive failures and redistribution of a planktivorous marine bird in both central California (37°N) southern British Columbia (50°N). At SE Farallon Island, CA, the birds abandoned breeding colony en masse between 10–20 May, unique behavioral response; for first time 35 years, success was zero. Triangle B.C., only 8% nesting pairs were successful, worst year on record. Surveys at sea revealed peak...
Abstract Contemporary impacts of anthropogenic climate change on ecosystems are increasingly being recognized. Documenting the extent these requires quantitative tools for analyses ecological observations to distinguish in noisy data and understand interactions between variability other drivers change. To assist development reliable statistical approaches, we review marine literature provide suggestions approaches ecology. We compiled 267 peer‐reviewed articles that examined relationships...