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What are the benefits of delisting endangered species and who receives them?: Lessons from the gray wolf recovery in Greater Yellowstone 期刊论文
ECOLOGICAL ECONOMICS, 2020, 174
作者:  Sims, Charles;  Aadland, David;  Finnoff, David;  Hochard, Jacob
收藏  |  浏览/下载：16/0  |  提交时间：2020/08/18
Endangered Species Act  Conservation  Gray wolf  Yellowstone National Park  Livestock depredation  
Identification of chondritic krypton and xenon in Yellowstone gases and the timing of terrestrial volatile accretion 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (25) : 13997-14004
作者:  Broadley, Michael W.;  Barry, Peter H.;  Bekaert, David V.;  Byrne, David J.;  Caracausi, Antonio;  Ballentine, Christopher J.;  Marty, Bernard
收藏  |  浏览/下载：10/0  |  提交时间：2020/06/16
origin of Earth'  s volatiles  accretion  mantle plume  noble gases  Yellowstone  
Hydrothermal (NN)-N-15-N-15 abundances constrain the origins of mantle nitrogen 期刊论文
NATURE, 2020, 580 (7803) : 367-+
作者:  Zhao, Steven;  Jang, Cholsoon;  Liu, Joyce;  Uehara, Kahealani;  Gilbert, Michael;  Izzo, Luke;  Zeng, Xianfeng;  Trefely, Sophie;  Fernandez, Sully;  Carrer, Alessandro;  Miller, Katelyn D.;  Schug, Zachary T.;  Snyder, Nathaniel W.;  Gade, Terence P.;  Titchenell, Paul M.;  Rabinowitz, Joshua D.;  Wellen, Kathryn E.
收藏  |  浏览/下载：14/0  |  提交时间：2020/05/13

Nitrogen is the main constituent of the Earth'  s atmosphere, but its provenance in the Earth'  s mantle remains uncertain. The relative contribution of primordial nitrogen inherited during the Earth'  s accretion versus that subducted from the Earth'  s surface is unclear(1-6). Here we show that the mantle may have retained remnants of such primordial nitrogen. We use the rare (NN)-N-15-N-15 isotopologue of N-2 as a new tracer of air contamination in volcanic gas effusions. By constraining air contamination in gases from Iceland, Eifel (Germany) and Yellowstone (USA), we derive estimates of mantle delta N-15 (the fractional difference in N-15/N-14 from air), N-2/Ar-36 and N-2/He-3. Our results show that negative delta N-15 values observed in gases, previously regarded as indicating a mantle origin for nitrogen(7-10), in fact represent dominantly air-derived N-2 that experienced N-15/N-14 fractionation in hydrothermal systems. Using two-component mixing models to correct for this effect, the (NN)-N-15-N-15 data allow extrapolations that characterize mantle endmember delta N-15, N-2/Ar-36 and N-2/He-3 values. We show that the Eifel region has slightly increased delta N-15 and N-2/Ar-36 values relative to estimates for the convective mantle provided by mid-ocean-ridge basalts(11), consistent with subducted nitrogen being added to the mantle source. In contrast, we find that whereas the Yellowstone plume has delta N-15 values substantially greater than that of the convective mantle, resembling surface components(12-15), its N-2/Ar-36 and N-2/He-3 ratios are indistinguishable from those of the convective mantle. This observation raises the possibility that the plume hosts a primordial component. We provide a test of the subduction hypothesis with a two-box model, describing the evolution of mantle and surface nitrogen through geological time. We show that the effect of subduction on the deep nitrogen cycle may be less important than has been suggested by previous investigations. We propose instead that high mid-ocean-ridge basalt and plume delta N-15 values may both be dominantly primordial features.


  
Plasticity in elk migration timing is a response to changing environmental conditions 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (7) : 2368-2381
作者:  Rickbeil, Gregory J. M.;  Merkle, Jerod A.;  Anderson, Greg;  Atwood, M. Paul;  Beckmann, Jon P.;  Cole, Eric K.;  Courtemanch, Alyson B.;  Dewey, Sarah;  Gustine, David D.;  Kauffman, Matthew J.;  McWhirter, Douglas E.;  Mong, Tony;  Proffitt, Kelly;  White, Patrick J.;  Middleton, Arthur D.
收藏  |  浏览/下载：8/0  |  提交时间：2019/11/27
climate change  forage  GPS  phenology  range  snow  telemetry  ungulate  Yellowstone  
Looking beyond the mean: Drivers of variability in postfire stand development of conifers in Greater Yellowstone 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 430: 460-471
作者:  Braziunas, Kristin H.;  Hansen, Winslow D.;  Seidl, Rupert;  Rammer, Werner;  Turner, Monica G.
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/09
Stand structure  Variability  Forest development  Process-based modeling  Greater Yellowstone Ecosystem  Wildfire  
Recent post-wildfire salvage logging benefits local and landscape floral and bee communities 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 424: 267-275
作者:  Heil, Laura J.;  Burkle, Laura A.
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/09
Disturbance-diversity relationships  Floral resources  Forest succession  Greater Yellowstone Ecosystem  Pollinator declines  Timber harvest  
Trophic cascades at multiple spatial scales shape recovery of young aspen in Yellowstone 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 413: 62-69
作者:  Beschta, Robert L.;  Painter, Luke E.;  Ripple, William J.
收藏  |  浏览/下载：7/0  |  提交时间：2019/04/09
Trophic cascades  Behavioral mediation  Aspen  Elk  Wolves  Yellowstone National Park  
Interagency Pilot of Greenhouse Gas Accounting Tools: Lessons Learned 科技报告
来源：US Department of Energy (DOE). 出版年： 2013
作者:  Carpenter, A.;  Hotchkiss, E.;  Kandt, A.
收藏  |  浏览/下载：4/0  |  提交时间：2019/04/05
NREL  GREENHOUSE GAS  ACCOUNTING  INVENTORYING TOOLS  LESSONS LEARNED  YELLOWSTONE  TONGASS  Integrated Applications  
Beyond the Inventory: An Interagency Collaboration to Reduce Greenhouse Gas Emissions in the Greater Yellowstone Area 科技报告
来源：US Department of Energy (DOE). 出版年： 2010
作者:  Kandt, A.;  Hotchkiss, E.;  Fiebig, M.
收藏  |  浏览/下载：5/0  |  提交时间：2019/04/05
NATIONAL RENEWABLE ENERGY LABORATORY  NREL  U.S. DEPARTMENT OF ENERGY  DOE  FEDERAL ENERGY MANAGEMENT PROGRAM  FEMP  U.S. FOREST SERVICE  USFS  NATIONAL PARKS  GREATER YELLOWSTONE AREA  GYA  GREENHOUSE GAS EMISSIONS  GHG INVENTORY  GHG MITIGATION  Deploym