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Opportunistic exploitation: an overlooked pathway to extinction.

Opportunistic exploitation: an overlooked pathway to extinction.
Trends Ecol Evol. 2013 Apr 4;
Authors: Branch TA, Lobo AS, Purcell SW
Abstract
How can species be exploited economically to extinction? Past single-species hypotheses examining the economic plausibility of exploiting rare species have argued that the escalating value of rarity allows extinction to be profitable. We describe an alternative pathway toward extinction in multispecies exploitation systems, termed ‘opportunistic exploitation’. 

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Riding the crimson tide: mobile terrestrial consumers track phenological variation in spawning of an anadromous fish.

Riding the crimson tide: mobile terrestrial consumers track phenological variation in spawning of an anadromous fish.
Biol Lett. 2013;9(3):20130048
Authors: Schindler DE, Armstrong JB, Bentley KT, Jankowski K, Lisi PJ, Payne LX
Abstract
When resources are spatially and temporally variable, consumers can increase their foraging success by moving to track ephemeral feeding opportunities as these shift across the landscape; the best examples derive from herbivore-plant systems, where grazers migrate to capitalize on the seasonal waves of vegetation growth. 

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CANCELLED Faculty Meeting

Faculty Meetings are held today in FSH 203 from 11:30 AM to 1:00 PM. Faculty Meetings are open to the public, per RCW 42.30 and UW APS 1.5, unless recessed into executive (closed) session. 

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Some Alaskan trout use flexible guts for the ultimate binge diet – UW Today

UW Today

Some Alaskan trout use flexible guts for the ultimate binge dietUW TodayThe work was funded by the National Science Foundation, Gordon and Betty Moore Foundation, Alaska salmon processors and the UW School of Aquatic and Fishery Sciences. ###. For more information: Armstrong, 541-840-6017, jonny5armstrong@gmail.and more »

via “school of aquatic and fishery sciences” – Google News 

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Invited Seminar “Ecohydrology in a Changing World”, 4:00, Tuesday April 2, Anderson 223

Dr. Kate Brauman will present “Ecohydrology in a Changing World” on Tuesday April 2, at 4:00 in Anderson 223.
Dr. Brauman is a candidate for a cross-cutting Freshwater Initiative faculty search. Her research focuses on the interactions among land management, water resources, and human well-being. You can read more about her at: http://gli.environment.umn.edu/about/team/kate-brauman/ 

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Addressing assumptions: variation in stable isotopes and fatty acids of marine macrophytes can confound conclusions of food web studies

MN Dethier, *EA Sosik, *AWE Galloway, DO Duggins, *CA Simenstad. 2013. Feature Article, open access. Marine Ecology Progress Series 478:1-14.
http://www.int-res.com/abstracts/meps/v478/
*Authors from SAFS
Research on food webs increasingly relies on sampling biomarkers (stable isotopes and fatty acids) in consumers and their potential prey. In studies of macroalgal and seagrass biomarkers in the northeast Pacific, Dethier and coworkers found substantial variation in biomarkers across dates and sites. 

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Ocean food provision index is seriously biased

Branch TA, Hively DJ, Hilborn R (2013) Is the ocean food provision index biased? Nature 495:E5-E6
How close to maximum sustainable food provision is current seafood harvest from the world’s oceans? Halpern et al. [1] suggest that the answer is 25% from a global index of food provision, part of their multifaceted index of ocean health. Rigorous methods used for management, however, demonstrate that their food provision index is uncorrelated with actual food provision, and that global ocean food provision is in the range of 71–95%. 

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Some Alaskan trout use flexible guts for the ultimate binge diet – Alaska Native News

Some Alaskan trout use flexible guts for the ultimate binge dietAlaska Native NewsThey don't have to go to sea,” Bond said. The work was funded by the National Science Foundation, Gordon and Betty Moore Foundation, Alaska salmon processors and the UW School of Aquatic and Fishery Sciences. Source: University of Washington …

via “school of aquatic and fishery sciences” – Google News 

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