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Fire mosaics and habitat choice in nomadic foragers 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (23) : 12904-12914
作者:  Bird, Rebecca Bliege;  McGuire, Chloe;  Bird, Douglas W.;  Price, Michael H.;  Zeanah, David;  Nimmo, Dale G.
收藏  |  浏览/下载:13/0  |  提交时间:2020/06/01
ideal free distribution  positive density dependence  niche construction  historical ecology  hunter-gatherer mobility  
Evolutionary conservation of within-family biodiversity patterns 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Laiolo, Paola;  Pato, Joaquina;  Jimenez-Alfaro, Borja;  Ramon Obeso, Jose
收藏  |  浏览/下载:6/0  |  提交时间:2020/05/13
The past and future of global river ice 期刊论文
NATURE, 2020, 577 (7788) : 69-+
作者:  Yang, Xiao;  Pavelsky, Tamlin M.;  Allen, George H.
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13

More than one-third of Earth'  s landmass is drained by rivers that seasonally freeze over. Ice transforms the hydrologic(1,2), ecologic(3,4), climatic(5) and socio-economic(6-8) functions of river corridors. Although river ice extent has been shown to be declining in many regions of the world(1), the seasonality, historical change and predicted future changes in river ice extent and duration have not yet been quantified globally. Previous studies of river ice, which suggested that declines in extent and duration could be attributed to warming temperatures(9,10), were based on data from sparse locations. Furthermore, existing projections of future ice extent are based solely on the location of the 0-degrees C isotherm11. Here, using satellite observations, we show that the global extent of river ice is declining, and we project a mean decrease in seasonal ice duration of 6.10 +/- 0.08 days per 1-degrees C increase in global mean surface air temperature. We tracked the extent of river ice using over 400,000 clear-sky Landsat images spanning 1984-2018 and observed a mean decline of 2.5 percentage points globally in the past three decades. To project future changes in river ice extent, we developed an observationally calibrated and validated model, based on temperature and season, which reduced the mean bias by 87 per cent compared with the 0-degree-Celsius isotherm approach. We applied this model to future climate projections for 2080-2100: compared with 2009-2029, the average river ice duration declines by 16.7 days under Representative Concentration Pathway (RCP) 8.5, whereas under RCP 4.5 it declines on average by 7.3 days. Our results show that, globally, river ice is measurably declining and will continue to decline linearly with projected increases in surface air temperature towards the end of this century.


  
The global decline of freshwater megafauna 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3883-3892
作者:  He, Fengzhi;  Zarfl, Christiane;  Bremerich, Vanessa;  David, Jonathan N. W.;  Hogan, Zeb;  Kalinkat, Gregor;  Tockner, Klement;  Jaehnig, Sonja C.
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
biodiversity  conservation  distribution  extinction  population  range contraction  size  vertebrate  
Effects of 21st-century climate, land use, and disturbances on ecosystem carbon balance in California 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3334-3353
作者:  Sleeter, Benjamin M.;  Marvin, David C.;  Cameron, D. Richard;  Selmants, Paul C.;  Westerline, A. LeRoy;  Kreitler, Jason;  Daniel, Colin J.;  Liu, Jinxun;  Wilson, Tamara S.
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/27
California  carbon balance  climate change  disturbance  land use  scenarios  
Projecting marine species range shifts from only temperature can mask climate vulnerability 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  McHenry, Jennifer;  Welch, Heather;  Lester, Sarah E.;  Saba, Vincent
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
climate change  habitat suitability models  marine species  range shifts  species vulnerability  
Breakdown in spawning synchrony: A silent threat to coral persistence 期刊论文
SCIENCE, 2019, 365 (6457) : 1002-+
作者:  Shlesinger, Tom;  Loya, Yossi
收藏  |  浏览/下载:3/0  |  提交时间:2019/11/27
Zones of influence for soil organic matter dynamics: A conceptual framework for data and models 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Cagnarini, Claudia;  Blyth, Eleanor;  Emmett, Bridget A.;  Evans, Chris D.;  Griffiths, Robert, I;  Keith, Aidan;  Jones, Laurence;  Lebron, Inma;  McNamara, Niall P.;  Puissant, Jeremy;  Reinsch, Sabine;  Robinson, David A.;  Rowe, Edwin C.;  Thomas, Amy R. C.;  Smart, Simon M.;  Whitaker, Jeanette;  Cosby, Bernard J.
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/27
conceptual framework  connectivity  soil depth  SOM model  SOM persistence  sustainable land management  UNSDG-15  zones of influence  
A triage framework for managing novel, hybrid, and designed marine ecosystems 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (10) : 3215-3223
作者:  Schlappy, Marie-Lise;  Hobbs, Richard J.
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/27
climate change  conservation  human values  marine ecosystem  marine phase shifts  novel ecosystem  restoration  
Observed and modelled historical trends in the water-use efficiency of plants and ecosystems 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (7) : 2242-2257
作者:  Lavergne, Alienor;  Graven, Heather;  De Kauwe, Martin G.;  Keenan, Trevor F.;  Medlyn, Belinda E.;  Prentice, Iain Colin
收藏  |  浏览/下载:16/0  |  提交时间:2019/11/27
carbon isotopic discrimination  eddy-covariance flux  spatial scales  stomatal conductance  trends in water-use efficiency  vegetation modelling