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ecosystems

夏威夷颁布法令禁用防晒霜

Coral reefs are fragile, yet vital, parts of the world's ecosystems, and they support the highest marine biodiversity in the world.

野生动物第六次灭绝正在加速

The vanishing of a top-level carnivore or herbivore can have a cascading effect down the food chain, disrupting entire ecosystems.

气候变暖让灰熊弃荤从素改吃浆果

"Bears switched from eating salmon to elderberries, disrupting an ecological link that typically fertilizes terrestrial ecosystems and generates high mortality rates for salmon," the study said.

中国科学家琥珀中发现恐龙标本

'Amber pieces preserve tiny snapshots of ancient ecosystems, but they record microscopic details, three-dimensional arrangements, and tissues that are difficult to study in other settings,' Dr McKellar said.

破坏环境的行为(1)

They were looking at wastewater treatment and its impact on freshwater ecosystems, and they found that even trace amounts of estrogen in the environment can wipe out entire species.

自然要多大才足够

Venter has moved from sequencing the DNA of humans and other species to assaying genes in entire ecosystems most recently the waters of the Sargasso Sea.

微软的大空话

His was the usual mishmash of "platforms", "drivers", "ecosystems", "aligns", "DNAs" and "going forwards" — as well as some more ambitious combinations such as "extend our experience footprint".

智能城市的现实与幻象

For the time being, expect more internet-connected bins and street lighting, while businesses work out just what else these ecosystems can do.

谁该为破坏大自然负责

To the Editor: : Footsteps do affect fragile ecosystems.

警报! 过去40年野生动物数量减半

Professor Ken Norris, director of science at Zoological Society of London (ZSL), said: 'The scale of biodiversity loss and damage to the very ecosystems that are essential to our existence is alarming.

海洋需要关注

Tourism accounts for a large piece of coastline economies and medicines are being found in reef ecosystems everyday.

正在消失的格林兰冰盖威胁人类的生存

Possible consequences include flooding and damage to both cities and ecosystems.

2030年人类将需要两个地球

It also carried a warning about the loss of wildlife and ecosystems which people depend on for food, fuel, clean water and other resources - with populations of species declining by 30 per cent worldwide between 1970 and 2007.

自然要多少才足够

Venter has moved from sequencing the DNA of humans and other species to assaying genes in entire ecosystems most recently the waters of the Sargasso Sea.


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