Biodiversity - page 4

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Thousands of dead walleye wash up in Lake Erie

Experts are trying to figure out why thousands of dead walleye fish have been washing up on a roughly 25-mile stretch of Lake Erie between the northern Ohio cities of Toledo and Port Clinton over the past few weeks. The mysterious deaths add to the millions of others

May 18, 2011

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Antarctic marine ecosystem threaten by Human Activity

A team of scientists in the United Kingdom and the United States has warned that the native fauna and unique ecology of the Southern Ocean, the vast body of water that surrounds the Antarctic continent, is under threat from human activity. Their study is published

May 16, 2011

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Two small islands have sunk into the sea between India and Sri Lanka

Two small islands in South Asia's first marine biosphere reserve have sunk into the sea primarily as a result of coral reef mining. The islets were in a group in the Gulf of Mannar, between India and Sri Lanka.The Indo-Pacific region is considered to contain some of

May 16, 2011

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Significant bee colony losses in New Zealand

Beekeepers fear an alarming phenomenon that is wiping out bees and leading to reduced food crops around the world has now reached New Zealand. Colony collapse disorder has caused American beekeepers to report losses of up to 90 per cent in some cases, prompting fears

May 08, 2011

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Crop yields fall as temperatures rise

Global warming is taking its toll on our food, according to the first study to demonstrate a link between global crop yields and climate change. It concludes that the steep rise in temperatures since 1980 has cut into yields of staple crops, offsetting gains from

May 05, 2011

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Could crop ancestors feed the world?

The world is facing starvation as climate change disrupts food production and the population booms and science’s last hope may be locked inside Syria's forgotten wild plants.The race is on to develop and test improved crop varieties to feed the world's growing

May 02, 2011

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Growing threat of wheat rust epidemics worldwide

ICARDA and  GlobalRust researchers meeting at a scientific conference in Aleppo this week reported that aggressive new strains of wheat rust diseases - called stem rust and stripe rust - have decimated up to 40% of farmers' wheat fields in recent harvests. Areas

April 30, 2011

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Antimalarial trees in East Africa threatened with extinction

Researchers  find  that plants in East Africa with promising antimalarial qualities - ones that have treated malaria symptoms in the region's communities for hundreds of years - are at risk of extinction. Scientists fear that these natural remedial qualities, and

April 27, 2011

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Thousands of hectares of tropical forest are saved

Thousands of hectares of tropical dry forests in the Brazilian state of Minas Gerais are now safe from logging, thanks to scientists affiliated with a project called Tropi-Dry. Using information from Tropi-Dry, the members of the Superior Court of Minas Gerais

April 22, 2011

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Slash-and-burn threatens African forests

Farming of crops like cocoa, cassava and oil palm has resulted in widespread deforestation and degradation of  West Africa's tropical forest area, a study says. Cocoa production in West Africa is an important economic activity and a source of income for about 2

April 10, 2011

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Global mangrove forest destroyed rapidly

New research shows that mangroves store exceptionally more carbon than most tropical forests, but they are being destroyed from coastlines at a rapid rate, causing significant emissions of greenhouse gases.Findings by scientists from the Center for International

April 08, 2011