ecosystem-凯发k8官网

13-12-09 for years, scientists have believed that preserving more species, no matter which ones, is a key component to enhancing how well an ecosystem performs. not so fast, say scientists at duke university and the university of massachusetts at boston. in...

13-11-21 among the most impressive ecological findings of the past 25 years is the ability of invasive plants to radically change ecosystem function. yet few if any studies have examined whether ecosystem impacts of invasions persist over time, and what that...

13-11-14 in a major new international report, experts conclude that the acidity of the world's ocean may increase by around 170% by the end of the century bringing significant economic losses. people who rely on the ocean's ecosystem services -- often in dev...

13-10-09 over 80% of the world's ice-free land is at risk of profound ecosystem transformation by 2100, a new study reveals. essentially, we would be leaving the world as we know it, says sebastian ostberg of the potsdam institute for climate impact research...

13-08-30 by carefully analyzing a 150-year-old moss bank on the antarctic peninsula, researchers reporting in current biology, a cell press publication, on august 29 describe an unprecedented rate of ecological change since the 1960s driven by warming temper...

13-02-19 while many people recognize that clean water and air are signs of a healthy ecosystem, most do not realize that a critical part of the environment is right beneath their feet, according to a penn state hydrologist. the ground plays an important role...

12-12-13 a detailed analysis of sediments from the island of bonaire in the caribbean presents convincing evidence for an extraordinary wave impact dating back some 3,300 years, even though no historical records of tsunamis exist for this island. of particul...

11-08-20 as biodiversity declines worldwide, there is concern that this will lead to declines in the services that ecosystems provide for people, such as food production, carbon storage, and water purification. but until now it has been unclear, whether just...

09-12-16 nasa researchers studying urban城市的，市区的 landscapes have found that the intensity强烈，强度 of the heat island created by a city depends on the ecosystem it replaced and on the regional climate. urban areas developed in arid干旱的，不毛的 and s...

09-10-12 scientists have warned of an alarming increase in the extinction of animal species, because of threats to biodiversity and ecosystems. 科学家就动物物种灭绝速率的惊人上升提出警告，因为生物品种和生态系统正遭到威胁。 scientists say nations have not hon...