نتایج جستجو برای: change

تعداد نتایج: 592238  

2015
Nikolai Svoboda Maximilian Strer Johannes Hufnagel

BACKGROUND We analysed regionalised ECHAM6 climate data for the North German Plains (NGP) in two time slots from 1981 to 2010 and 2041 to 2070. RESULTS The annual mean temperature will increase significantly (by about 2 °C) that will result in shorter growing periods since the sum of degree days until harvest will be reached earlier. Even if the amount of total precipitation does not change t...

Journal: :The American naturalist 2013
Xia Hua John J Wiens

Variation in climatic conditions over space and time is thought to be an important driver of speciation. However, the role of climate has not been explored in the theoretical literature on speciation, and the theory underlying empirical studies of climate and speciation has come largely from informal, verbal models. In this study, we develop a quantitative model to test a relatively new but the...

2015
Prajal Pradhan

of the dissertation submitted to Institute of Earth and Environmental Science, University of Potsdam Food Demand and Supply under Global Change

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
T F Stocker O Marchal

Models suggest that dramatic changes in the ocean circulation are responsible for abrupt climate changes during the last ice age and may possibly alter the relative climate stability of the last 10,000 years.

Journal: :BMJ 2009
Victor Lim Joseph W Stubbs Nazmun Nahar Naomali Amarasena Zafar Ullah Chaudry Steven Chow Kim Weng Bongani Mayosi Zephne van der Spuy Raymond Liang Kar Neng Lai Geoffrey Metz G William N Fitzgerald Brian Williams Neil Douglas John Donohoe Somwang Darnchaivijir Patrick Coker Ian Gilmore

Journal: :Ecology letters 2014
Emily V Moran Jake M Alexander

Biologists have recently devoted increasing attention to the role of rapid evolution in species' responses to environmental change. However, it is still unclear what evolutionary responses should be expected, at what rates, and whether evolution will save populations at risk of extinction. The potential of biological invasions to provide useful insights has barely been realised, despite the clo...

Journal: :Global change biology 2013
Erin Conlisk Alexandra D Syphard Janet Franklin Lorraine Flint Alan Flint Helen Regan

Concern over rapid global changes and the potential for interactions among multiple threats are prompting scientists to combine multiple modelling approaches to understand impacts on biodiversity. A relatively recent development is the combination of species distribution models, land-use change predictions, and dynamic population models to predict the relative and combined impacts of climate ch...

Journal: :Trends in ecology & evolution 2007
Dov F Sax John J Stachowicz James H Brown John F Bruno Michael N Dawson Steven D Gaines Richard K Grosberg Alan Hastings Robert D Holt Margaret M Mayfield Mary I O'Connor William R Rice

Species invasions provide numerous unplanned and frequently, but imperfectly, replicated experiments that can be used to better understand the natural world. Classic studies by Darwin, Grinnell, Elton and others on these species-invasion experiments provided invaluable insights for ecology and evolutionary biology. Recent studies of invasions have resulted in additional insights, six of which w...

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