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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  
A Long-Lived Sharp Disruption on the Lower Clouds of Venus 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (11)
作者:  Peralta, J.;  Navarro, T.;  Vun, C. W.;  Sanchez-Lavega, A.;  McGouldrick, K.;  Horinouchi, T.;  Imamura, T.;  Hueso, R.;  Boyd, J. P.;  Schubert, G.;  Kouyama, T.;  Satoh, T.;  Iwagami, N.;  Young, E. F.;  Bullock, M. A.;  Machado, P.;  Lee, Y. J.;  Limaye, S. S.;  Nakamura, M.;  Tellmann, S.;  Wesley, A.;  Miles, P.
收藏  |  浏览/下载：17/0  |  提交时间：2020/08/18
Partial cross mapping eliminates indirect causal influences 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Leng, Siyang;  Ma, Huanfei;  Kurths, Juergen;  Lai, Ying-Cheng;  Lin, Wei;  Aihara, Kazuyuki;  Chen, Luonan
收藏  |  浏览/下载：11/0  |  提交时间：2020/06/01
On the Functional Relationship Between Fluorescence and Photochemical Yields in Complex Evergreen Needleleaf Canopies 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Maguire, Andrew J.;  Eitel, Jan U. H.;  Griffin, Kevin L.;  Magney, Troy S.;  Long, Ryan A.;  Vierling, Lee A.;  Schmiege, Stephanie C.;  Jennewein, Jyoti S.;  Weygint, William A.;  Boelman, Natalie T.;  Bruner, Sarah G.
收藏  |  浏览/下载：8/0  |  提交时间：2020/07/02
canopy irradiance  evergreen needleleaf forest  light use efficiency  nonphotochemical quenching  
Mountain Waves Produced by a Stratified Boundary Layer Flow. Part I: Hydrostatic Case 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (5) : 1683-1697
作者:  Lott, Francois;  Deremble, Bruno;  Soufflet, Clement
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
Atmosphere  Dynamics  Mountain waves  Boundary layer  
Internal state dynamics shape brainwide activity and foraging behaviour 期刊论文
NATURE, 2020, 577 (7789) : 239-+
作者:  Marques, Joao C.;  Li, Meng;  Schaak, Diane;  Robson, Drew N.;  Li, Jennifer M.
收藏  |  浏览/下载：5/0  |  提交时间：2020/07/03

The brain has persistent internal states that can modulate every aspect of an animal'  s mental experience(1-4). In complex tasks such as foraging, the internal state is dynamic(5-8). Caenorhabditis elegans alternate between local search and global dispersal(5). Rodents and primates exhibit trade-offs between exploitation and exploration(6,7). However, fundamental questions remain about how persistent states are maintained in the brain, which upstream networks drive state transitions and how state-encoding neurons exert neuromodulatory effects on sensory perception and decision-making to govern appropriate behaviour. Here, using tracking microscopy to monitor whole-brain neuronal activity at cellular resolution in freely moving zebrafish larvae(9), we show that zebrafish spontaneously alternate between two persistent internal states during foraging for live prey (Paramecia). In the exploitation state, the animal inhibits locomotion and promotes hunting, generating small, localized trajectories. In the exploration state, the animal promotes locomotion and suppresses hunting, generating long-ranging trajectories that enhance spatial dispersion. We uncover a dorsal raphe subpopulation with persistent activity that robustly encodes the exploitation state. The exploitation-state-encoding neurons, together with a multimodal trigger network that is associated with state transitions, form a stochastically activated nonlinear dynamical system. The activity of this oscillatory network correlates with a global retuning of sensorimotor transformations during foraging that leads to marked changes in both the motivation to hunt for prey and the accuracy of motor sequences during hunting. This work reveals an important hidden variable that shapes the temporal structure of motivation and decision-making.


  
Dry and moist dynamics shape regional patterns of extreme precipitation sensitivity 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (16) : 8757-8763
作者:  Nie, Ji;  Dai, Panxi;  Sobel, Adam H.
收藏  |  浏览/下载：8/0  |  提交时间：2020/05/13
precipitation extreme  convection  climate change  
A Unified Nonlinear Multiscale Interaction Model of Pacific-North American Teleconnection Patterns 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (4) : 1387-1414
作者:  Luo, Dehai;  Ge, Yao;  Zhang, Wenqi;  Dai, Aiguo
收藏  |  浏览/下载：10/0  |  提交时间：2020/07/02
Eddies  Nonlinear dynamics  Pacific-North American pattern  oscillation  Potential vorticity  North Atlantic Oscillation  
Historical and Future Roles of Internal Atmospheric Variability in Modulating Summertime Greenland Ice Sheet Melt 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (6)
作者:  Sherman, Peter;  Tziperman, Eli;  Deser, Clara;  McElroy, Michael
收藏  |  浏览/下载：6/0  |  提交时间：2020/07/02
Greenland ice sheet  internal variability  large ensemble  climate change  
Frequency Dependence of Very Low Frequency Chorus Poynting Flux in the Source Region: THEMIS Observations and a Model 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (6)
作者:  Demekhov, A. G.;  Taubenschuss, U.;  Hanzelka, M.;  Santolik, O.
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
VLF chorus  BWO model