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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：15/0  |  提交时间：2020/08/18
Endangered Species Act  Conservation  Gray wolf  Yellowstone National Park  Livestock depredation  
Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores 期刊论文
ECOLOGY LETTERS, 2020, 23 (5) : 902-918
作者:  Prugh, Laura R.;  Sivy, Kelly J.
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
Carcass  carrion  cascade  fatal attraction  interspecific killing  intraguild predation  mesocarnivore  mesopredator  meta-analysis  scavenging  
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.


  
Conserving transboundary wildlife migrations: recent insights from the Greater Yellowstone Ecosystem 期刊论文
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2020, 18 (2) : 83-91
作者:  Middleton, Arthur D.;  Sawyer, Hall;  Merkle, Jerod A.;  Kauffman, Matthew J.;  Cole, Eric K.;  Dewey, Sarah R.;  Gude, Justin A.;  Gustine, David D.;  McWhirter, Douglas E.;  Proffitt, Kelly M.;  White, P. J.
收藏  |  浏览/下载：11/0  |  提交时间：2020/07/02
Do prey select for vacant hunting domains to minimize a multi-predator threat? 期刊论文
ECOLOGY LETTERS, 2019, 22 (11) : 1724-1733
作者:  Kohl, Michel T.;  Ruth, Toni K.;  Metz, Matthew C.;  Stahler, Daniel R.;  Smith, Douglas W.;  White, P. J.;  MacNulty, Daniel R.
收藏  |  浏览/下载：7/0  |  提交时间：2019/11/27
Antipredator behaviour  cougar  diel activity  elk  habitat selection  predation risk  predator facilitation  risk enhancement  synergistic predation  wolf  
Do lakes feel the burn? Ecological consequences of increasing exposure of lakes to fire in the continental United States 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (9) : 2841-2854
作者:  McCullough, Ian M.;  Cheruvelil, Kendra Spence;  Lapierre, Jean-Francois;  Lottig, Noah R.;  Moritz, Max A.;  Stachelek, Joseph;  Soranno, Patricia A.
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/27
burn severity  climate change  LAGOS  MTBS  watershed  wildfire  
Environmental DNA in lake sediment reveals biogeography of native genetic diversity 期刊论文
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2019, 17 (6) : 313-318
作者:  Nelson-Chorney, Hedin T.;  Davis, Corey S.;  Poesch, Mark S.;  Vinebrooke, Rolf D.;  Carli, Christopher M.;  Taylor, Mark K.
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/27
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  
Judge cancels hunt of Yellowstone grizzlies 期刊论文
SCIENCE, 2018, 361 (6409) : 1296-1296
作者:  Brainard, Jeffrey
收藏  |  浏览/下载：0/0  |  提交时间：2019/11/27
Yellowstone Lake study heats up 期刊论文
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2018, 16 (5) : 258-258
作者:  [unavailable]
收藏  |  浏览/下载：0/0  |  提交时间：2019/04/09