中文版 | English

在结果中检索

GSTDTAP

浏览/检索结果: 共166条，第1-10条 帮助

限定条件    
已选(0)清除 条数/页：   排序方式：
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  
Fasting season length sets temporal limits for global polar bear persistence 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Molnar, Peter K.;  Bitz, Cecilia M.;  Holland, Marika M.;  Kay, Jennifer E.;  Penk, Stephanie R.;  Amstrup, Steven C.
收藏  |  浏览/下载：19/0  |  提交时间：2020/08/09
Intraspecific difference among herbivore lineages and their host-plant specialization drive the strength of trophic cascades 期刊论文
ECOLOGY LETTERS, 2020, 23 (8) : 1242-1251
作者:  Sentis, Arnaud;  Bertram, Raphael;  Dardenne, Nathalie;  Simon, Jean-Christophe;  Magro, Alexandra;  Pujol, Benoit;  Danchin, Etienne;  Hemptinne, Jean-Louis
收藏  |  浏览/下载：28/0  |  提交时间：2020/05/13
Evo-to-eco  genetic variation  herbivory  host-plant adaptation  indirect effects  tri-trophic interactions  
Ecosystem wealth in the Barents Sea 期刊论文
ECOLOGICAL ECONOMICS, 2020, 171
作者:  Kvamsdal, Sturla F.;  Sandal, Leif K.;  Poudel, Diwakar
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
Natural capital  Inclusive wealth  Fisheries  Barents Sea  
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  
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.


  
Projected shifts in the foraging habitat of crabeater seals along the Antarctic Peninsula 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (5) : 472-+
作者:  Huckstadt, Luis A.;  Pinones, Andrea;  Palacios, Daniel M.;  McDonald, Birgitte I.;  Dinniman, Michael S.;  Hofmann, Eileen E.;  Burns, Jennifer M.;  Crocker, Daniel E.;  Costa, Daniel P.
收藏  |  浏览/下载：9/0  |  提交时间：2020/05/13
Diversity and coexistence are influenced by time-dependent species interactions in a predator-prey system 期刊论文
ECOLOGY LETTERS, 2020, 23 (6) : 983-993
作者:  Karakoc, Canan;  Clark, Adam Thomas;  Chatzinotas, Antonis
收藏  |  浏览/下载：10/0  |  提交时间：2020/05/13
Causality  diversity  EDMhelper  empirical dynamic modelling  predator-prey interactions  stability  
Predators weaken prey intraspecific competition through phenotypic selection 期刊论文
ECOLOGY LETTERS, 2020, 23 (6) : 951-961
作者:  Siepielski, Adam M.;  Hasik, Adam Z.;  Ping, Taylor;  Serrano, Mabel;  Strayhorn, Koby;  Tye, Simon P.
收藏  |  浏览/下载：6/0  |  提交时间：2020/05/13
Adaptation  competition  density dependence  eco-evo  food web  predation  selection  
Killer whale presence drives bowhead whale selection for sea ice in Arctic seascapes of fear 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (12) : 6590-6598
作者:  Matthews, Cory J. D.;  Breed, Greg A.;  LeBlanc, Bernard;  Ferguson, Steven H.
收藏  |  浏览/下载：28/0  |  提交时间：2020/05/13
nonconsumptive effects  predator-prey dynamics  state space model  risk effects  trait-mediated interactions