Institution
Point Blue Conservation Science
Nonprofit•Petaluma, California, United States•
About: Point Blue Conservation Science is a nonprofit organization based out in Petaluma, California, United States. It is known for research contribution in the topics: Population & Foraging. The organization has 151 authors who have published 330 publications receiving 11929 citations. The organization is also known as: Point Reyes Bird Observatory.
Topics: Population, Foraging, Climate change, Habitat, Pygoscelis
Papers published on a yearly basis
Papers
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TL;DR: A dynamic modeling approach is presented that estimates climate-driven changes in flood-hazard exposure by integrating the effects of SLR, tides, waves, storms, and coastal change (i.e. beach erosion and cliff retreat) and highlights the importance of including climate-change driven dynamic coastal processes and impacts in both short-term hazard mitigation and long-term adaptation planning.
Abstract: Coastal inundation due to sea level rise (SLR) is projected to displace hundreds of millions of people worldwide over the next century, creating significant economic, humanitarian, and national-security challenges. However, the majority of previous efforts to characterize potential coastal impacts of climate change have focused primarily on long-term SLR with a static tide level, and have not comprehensively accounted for dynamic physical drivers such as tidal non-linearity, storms, short-term climate variability, erosion response and consequent flooding responses. Here we present a dynamic modeling approach that estimates climate-driven changes in flood-hazard exposure by integrating the effects of SLR, tides, waves, storms, and coastal change (i.e. beach erosion and cliff retreat). We show that for California, USA, the world’s 5th largest economy, over $150 billion of property equating to more than 6% of the state’s GDP and 600,000 people could be impacted by dynamic flooding by 2100; a three-fold increase in exposed population than if only SLR and a static coastline are considered. The potential for underestimating societal exposure to coastal flooding is greater for smaller SLR scenarios, up to a seven-fold increase in exposed population and economic interests when considering storm conditions in addition to SLR. These results highlight the importance of including climate-change driven dynamic coastal processes and impacts in both short-term hazard mitigation and long-term adaptation planning.
236 citations
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TL;DR: The tracking of movements of white sharks is reported by using pop-up satellite archival tags, which reveal that their migratory movements, depth and ambient thermal ranges are wider than was previously thought.
Abstract: Until the advent of electronic tagging technology1,2,3,4, the inherent difficulty of studying swift and powerful marine animals made ecological information about sharks of the family Lamnidae5,6 difficult to obtain. Here we report the tracking of movements of white sharks by using pop-up satellite archival tags, which reveal that their migratory movements, depth and ambient thermal ranges are wider than was previously thought.
230 citations
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TL;DR: This is the first solid evidence for a negative relationship between plastic ingestion and physical condition in seabirds, and the likelihood that higher quality individuals are more prone to ingestplastic has serious implications regarding health of some seabird populations.
214 citations
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TL;DR: In this article, the effects of low-frequency climate change on the reproductive performance of 11 species of marine birds in the southern California Current system, 1969-1997, were studied.
210 citations
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United States Geological Survey1, University of Washington2, United States Fish and Wildlife Service3, Humboldt State University4, National Park Service5, National Marine Fisheries Service6, Moss Landing Marine Laboratories7, National Oceanic and Atmospheric Administration8, Point Blue Conservation Science9
TL;DR: It is hypothesized that these bottom-up and top-down forces created an “ectothermic vise” on forage species leading to their system-wide scarcity and resulting in mass mortality of murres and many other fish, bird and mammal species in the region during 2014–2017.
Abstract: About 62,000 dead or dying common murres (Uria aalge), the trophically dominant fish-eating seabird of the 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 to explain this mass mortality. Three-quarters of murres were found in the Gulf of Alaska and the remainder along the West Coast. Studies show that only a fraction of birds that die at sea typically wash ashore, and we estimate that total mortality approached 1 million birds. About two-thirds of murres killed were adults, a substantial blow to breeding populations. Additionally, 22 complete reproductive failures were observed at multiple colonies region-wide during (2015) and after (2016-2017) the mass mortality event. Die-offs and breeding failures occur sporadically in murres, but the magnitude, duration and spatial extent of this die-off, associated with multi-colony and multi-year reproductive failures, is unprecedented and astonishing. These events co-occurred with the most powerful marine heatwave on record that persisted through 2014-2016 and created an enormous volume of ocean water (the "Blob") from California to Alaska with temperatures that exceeded average by 2-3 standard deviations. Other studies indicate that this prolonged heatwave reduced phytoplankton biomass and restructured zooplankton communities in favor of lower-calorie species, while it simultaneously increased metabolically driven food demands of ectothermic forage fish. In response, forage fish quality and quantity diminished. Similarly, large ectothermic groundfish were thought to have increased their demand for forage fish, resulting in greater top-predator demands for diminished forage fish resources. We hypothesize that these bottom-up and top-down forces created an "ectothermic vise" on forage species leading to their system-wide scarcity and resulting in mass mortality of murres and many other fish, bird and mammal species in the region during 2014-2017.
177 citations
Authors
Showing all 153 results
Name | H-index | Papers | Citations |
---|---|---|---|
Keith A. Hobson | 103 | 653 | 41300 |
John A. Wiens | 75 | 193 | 26694 |
David G. Ainley | 61 | 200 | 10383 |
William J. Sydeman | 57 | 180 | 13698 |
Grant Ballard | 38 | 98 | 3643 |
Steven D. Emslie | 36 | 126 | 3595 |
Nadav Nur | 34 | 87 | 3479 |
C. John Ralph | 28 | 72 | 3848 |
Larry B. Spear | 26 | 55 | 2542 |
Matthew D. Johnson | 25 | 62 | 3309 |
David F. DeSante | 24 | 62 | 2462 |
Nathaniel E. Seavy | 24 | 67 | 1780 |
Gary W. Page | 24 | 48 | 2679 |
Harry R. Carter | 23 | 97 | 1640 |
Jaime Jahncke | 23 | 76 | 1628 |