Navigation Links
Environmental researchers propose radical 'human-centric' map of the world
Date:11/26/2007

This release is also available in French.

Ecologists pay too much attention to increasingly rare "pristine" ecosystems while ignoring the overwhelming influence of humans on the environment, say researchers from McGill University and the University of Maryland, Baltimore County (UMBC).

Prof. Erle Ellis of UMBC and Prof. Navin Ramankutty of McGill assert that the current system of classifying ecosystems into biomes (or "ecological communities") like tropical rainforests, grasslands and deserts may be misleading. Instead, they propose an entirely new model of human-centered "anthropegenic" biomes in the November 19 issue of the journal Frontiers in Ecology and the Environment.

"Ecologists go to remote parts of the planet to study pristine ecosystems, but no one studies it in their back yard," said Ramankutty, assistant professor in McGill's Department of Geography and the Earth System Science Program. "It's time to start putting instrumentation in our back yards both literal and metaphorical to study what's going on there in terms of ecosystem functioning."

Existing biome classification systems are based on natural-world factors such as plant structures, leaf types, plant spacing and climate. The Bailey System, developed in the 1970's, divides North America into four climate-based biomes: polar, humid temperate, dry and humid tropical. The World Wildlife Fund (WWF) ecological land classification system identifies 14 major biomes, including tundra, boreal forests, temperate coniferous forests and deserts and xeric shrublands. For their part, Ellis and Ramankutty propose a radically new system of anthropogenic biomes dubbed "anthromes" which includes residential rangelands, dense settlements, villages and croplands.

"Over the last million years, we have had glacial-interglacial cycles, with enormous changes in climate and massive shifts in ecosystems," said Ramankutty. "The human influence on the planet today is almost on the same scale. Nearly 30 to 40% of the world's land surface today is used just for growing food and grazing animals to serve the human population."

The researchers argue human land-use practices have fundamentally altered the planet. "Our analysis was quite surprising," said Ramankutty. "Only about 20% of the world's ice-free land-surface is pristine. The rest has some kind of anthropogenic influence, so if you're studying a pristine landscape, you're really only studying about 20% of the world."

"If you want to think about going into a sustainable future and restoring ecosystems, we have to accept that humans are here to stay. Humans are part of the package, and any restoration has to include human activities in it."


'/>"/>

Contact: Mark Shainblum
mark.shainblum@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Related biology news :

1. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
2. Genes, Environment and Health Initiative invests in genetic studies, environmental monitoring
3. UCR engineers to develop new tool to measure how environmental exposures affect health
4. TAU scientists probe deep questions aboard EcoOceans environmental research ship
5. Environmental setting of human migrations in the circum-Pacific Region
6. UC-Riverside partners with Chinese university to address Chinas environmental problems
7. Food and environmental sustainability focus of ASA-CSSA-SSSA Annual Meetings
8. Relationship between environmental stress and cancer elucidated
9. Researchers identify proteins involved in new neurodegenerative syndrome
10. Texas researchers and educators head for Antarctica
11. MGH researchers describe new way to identify, evolve novel enzymes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/22/2016)... 22, 2016   Acuant , the ... solutions, has partnered with RightCrowd ® ... Visitor Management, Self-Service Kiosks and Continuous Workforce ... add functional enhancements to existing physical access ... venues with an automated ID verification and ...
(Date:6/20/2016)... 20, 2016 Securus Technologies, a leading ... for public safety, investigation, corrections and monitoring announced ... it has secured the final acceptance by all ... Managed Access Systems (MAS) installed. Furthermore, Securus will ... be installed by October, 2016. MAS distinguishes between ...
(Date:6/9/2016)... June 9, 2016  Perkotek an innovation leader in attendance control systems is proud ... work hours, for employers to make sure the right employees are actually signing in, ... ... ... ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... , June 27, 2016 /PRNewswire/ - BIOREM Inc. (TSX-V: BRM) ... advised by its major shareholders, Clean Technology Fund I, ... United States based venture capital funds which ... Biorem (on a fully diluted, as converted basis), that ... of their entire equity holdings in Biorem to TUS ...
(Date:6/27/2016)... ... June 27, 2016 , ... Cancer experts ... they believe could be a new and helpful biomarker for malignant pleural mesothelioma. ... here to read it now. , Biomarkers are components in the blood, ...
(Date:6/27/2016)... ... 2016 , ... Newly created 4Sight Medical Solutions ... healthcare market. The company's primary focus is on new product introductions, to include ... are necessary to help companies efficiently bring their products to market. , The ...
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... the funding of a Sponsored Research Agreement with ... tumor cells (CTCs) from cancer patients.  The funding ... CTC levels correlate with clinical outcomes in cancer ... data will then be employed to support the ...
Breaking Biology Technology: