Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

York scientists warn of dramatic impact of climate change on Africa

10.06.2005


Scientists at the University of York are warning that dramatic changes may soon occur in Africa’s vegetation in response to global warming.



They believe the effect may be on a similar scale to the climatic disruption in the last Ice Age and the African forest decline 2,500 years ago.

Scientists in the University’s Environment Department studied the likely impact of future climate fluctuations on the continent by modelling the responses of more than 5000 plant species to predicted climate changes.


Dr Jon Lovett, who led the research, said: “The results were extraordinary – plants migrate out of the Congo rainforests and there is a massive intensification of drought in the Sahel. Other areas particularly hard hit are eastern Africa and the south-west coast.”

Because of a scarcity of hard data, the team used a computer programme written by Dr Colin McClean, of York’s Environment Department to study the response of plants to climate change.

Dr Lovett added: “We needed a method that would help fill in gaps in knowledge. The technique we used is called a genetic algorithm because it works in a similar way to the effect of evolution on chromosomes – the programme combines different variables in lots of different ways and the bad fits are knocked out, leaving the best solutions.”

The York team collaborated with the Nees Institute for Biodiversity of Plants in Bonn and the South African National Biodiversity Institute to compile the world’s largest database of Africa-wide plant distribution maps.

The research was supported by Conservation International and the BIOTA-Africa Programme of the German Federal Ministry of Education and Research. The findings will be published this summer in the Annals of the Missouri Botanical Garden – the USA’s leading research institute on African botany.

Dr Lovett added: “The other remarkable thing is that similar changes seem to have occurred in the past. When we showed the results to Jean Maley, a French palaeobotanist from Montpellier who works on past climate change in West Africa, he immediately drew parallels with events in the last Ice Age and in the African forest decline about 2500 years ago.”

He suggested that climate change would also have large-scale social impacts in Africa in the future.

“The social effects of climate change are tightly linked to politics and so difficult to predict, but the way things are going it looks like Africa is going to be in for a rough ride over the next few decades,” Dr Lovett said.

Dr. Jon Lovett | alfa
Further information:
http://www.york.ac.uk/admin/presspr

More articles from Ecology, The Environment and Conservation:

nachricht Value from wastewater
16.08.2017 | Hochschule Landshut

nachricht Species Richness – a false friend? Scientists want to improve biodiversity assessments
01.08.2017 | Carl von Ossietzky-Universität Oldenburg

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>