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The emergent interactions that govern biodiversity change 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (29) : 17074-17083
作者:  Clark, James S.;  Scher, C. Lane;  Swift, Margaret
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/09
food web dynamics  species interactions  GJAM  climate change  
Illuminating water cycle modifications and Earth system resilience in the Anthropocene 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (4)
作者:  Gleeson, Tom;  Wang-Erlandsson, Lan;  Porkka, Miina;  Zipper, Samuel C.;  Jaramillo, Fernando;  Gerten, Dieter;  Fetzer, Ingo;  Cornell, Sarah E.;  Piemontese, Luigi;  Gordon, Line J.;  Rockstroem, Johan;  Oki, Taikan;  Sivapalan, Murugesu;  Wada, Yoshihide;  Brauman, Kate A.;  Floerke, Martina;  Bierkens, Marc F. P.;  Lehner, Bernhard;  Keys, Patrick;  Kummu, Matti;  Wagener, Thorsten;  Dadson, Simon;  Troy, Tara J.;  Steffen, Will;  Falkenmark, Malin;  Famiglietti, James S.
收藏  |  浏览/下载:22/0  |  提交时间:2020/07/02
water cycle  Anthropocene  global hydrology  planetary boundary  
A Classification of Streamflow Patterns Across the Coastal Gulf of Alaska 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (2)
作者:  Sergeant, Christopher J.;  Falke, Jeffrey A.;  Bellmore, Rebecca A.;  Bellmore, J. Ryan;  Crumley, Ryan L.
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
flow regime  fuzzy classification  AutoClass  Alaska  discharge  coastal watersheds  
Amplified Rossby waves enhance risk of concurrent heatwaves in major breadbasket regions 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (1) : 48-+
作者:  Kornhuber, Kai;  Coumou, Dim;  Vogel, Elisabeth;  Lesk, Corey;  Donges, Jonathan F.;  Lehmann, Jascha;  Horton, Radley M.
收藏  |  浏览/下载:8/0  |  提交时间:2020/07/02
Long-term cyclic persistence in an experimental predator-prey system 期刊论文
NATURE, 2020, 577 (7789) : 226-+
作者:  Blasius, Bernd;  Rudolf, Lars;  Weithoff, Guntram;  Gaedke, Ursula;  Fussmann, Gregor F.
收藏  |  浏览/下载:8/0  |  提交时间:2020/04/16

Predator-prey cycles rank among the most fundamental concepts in ecology, are predicted by the simplest ecological models and enable, theoretically, the indefinite persistence of predator and prey(1-4). However, it remains an open question for how long cyclic dynamics can be self-sustained in real communities. Field observations have been restricted to a few cycle periods(5-8) and experimental studies indicate that oscillations may be short-lived without external stabilizing factors(9-19). Here we performed microcosm experiments with a planktonic predator-prey system and repeatedly observed oscillatory time series of unprecedented length that persisted for up to around 50 cycles or approximately 300 predator generations. The dominant type of dynamics was characterized by regular, coherent oscillations with a nearly constant predator-prey phase difference. Despite constant experimental conditions, we also observed shorter episodes of irregular, non-coherent oscillations without any significant phase relationship. However, the predator-prey system showed a strong tendency to return to the dominant dynamical regime with a defined phase relationship. A mathematical model suggests that stochasticity is probably responsible for the reversible shift from coherent to non-coherent oscillations, a notion that was supported by experiments with external forcing by pulsed nutrient supply. Our findings empirically demonstrate the potential for infinite persistence of predator and prey populations in a cyclic dynamic regime that shows resilience in the presence of stochastic events.


  
Contribution of rice variety renewal and agronomic innovations to yield improvement and greenhouse gas mitigation in China 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (11)
作者:  Zhang, Yi;  Jiang, Yu;  Tai, Amos P. K.;  Feng, Jinfei;  Li, Zhijie;  Zhu, Xiangcheng;  Chen, Jin;  Zhang, Jun;  Song, Zhenwei;  Deng, Aixing;  Lal, Rattan;  Zhang, Weijian
收藏  |  浏览/下载:11/0  |  提交时间:2020/02/17
food security  climate change  greenhouse gas mitigation  agronomic practice  rice production  
Resilience Thresholds to Temperature Anomalies: A Long-run Test for Rural Tanzania 期刊论文
ECOLOGICAL ECONOMICS, 2019, 164
作者:  d&;  39;Errico, Marco
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
Resilience thresholds  Food security  Household growth  Temperature shocks  Climate change  
Linkages between flow regime, biota, and ecosystem processes: Implications for river restoration 期刊论文
SCIENCE, 2019, 365 (6459) : 1264-+
作者:  Palmer, Margaret;  Ruhi, Albert
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
Comment on "Designing river flows to improve food security futures in the Lower Mekong Basin" 期刊论文
SCIENCE, 2019, 364 (6444)
作者:  Williams, John G.;  Moyle, Peter B.;  Halls, Ashley S.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
West African convection regimes and their predictability from submonthly forecasts 期刊论文
CLIMATE DYNAMICS, 2019, 52 (11) : 7029-7048
作者:  Vigaud, N.;  Giannini, A.
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/26