Argentine Rodent Devastating US Wetlands

Nutria is a rodent – Image Source – Flickr: blmurch

VOANews.com reports

Billions of dollars are spent every year in the United States in an attempt to control invasive species. Plants and animals brought legally and illegally into the country, have created extensive damage to the ecosystem and the economy.

SOURCE: Argentine Rodent Devastating US Wetlands – VOANews.com

Damage control – Haaretz

Haaretz reports

The planners behind the recently opened section of Road 6 did their best to reduce the highway’s impact on the environment but admit that ‘irreversible damage’ was done

The planning concept included a comprehensive approach to landscape, out of a desire to minimize damage to plant and animal life. To reduce the amount of digging and filling in, 14 bridges with a combined length of 2.5 kilometers were erected, and three tunnels for the passage of animals were dug.

read the full article at the SOURCE: Damage control – Haaretz – Israel News

Scientists Help Find Plant DNA Barcode

University of Guelph reports

It will now be possible to genetically differentiate the more than 400,000 species of land plants in the world thanks to DNA barcoding, a revolutionary technique invented at the University of Guelph.

An international team of 52 scientists – including seven from U of G – has concluded a four-year effort to find a standard “plant DNA barcode.” Their findings appear in this week’s Proceedings of the National Academy of Sciences, one of the world’s most-cited multidisciplinary scientific serials.

The research involved scientists from 10 countries. Significant elements of data gathering and analysis were conducted at the Canadian Centre for DNA Barcoding (CCDB), which is based at U of G’s Biodiversity Institute of Ontario.

Peter Hollingsworth, head of genetics and conservation at the Royal Botanic Garden in Edinburgh who led the international research team, added: “Identification is important. It’s not possible to know if a plant is common or rare, poisonous or edible, being traded legally or illegally etc., unless it can be identified. But identification can be difficult: there are a large number of plant species and some look very similar.”

Other universities involved in the study are: the University of British Columbia, University of Toronto, University of Johannesburg, Korea University, Universidade Estadual de Feira de Santana, Universidad de Costa Rica, Columbus State University, University of Wisconsin, Universidad de los Andes Aberystwyth University, University of Cape Town, Hallym University, Seoul National University, University of Copenhagen, Universidad Nacional Autónoma de México and Imperial College London. Agencies that participated in the research include the National Center for Biotechnology Information, the Smithsonian Institution, the Natural History Museum in London, the South African National Biodiversity Institute, the Natural History Museum of Denmark and the New York Botanical Garden.

SOURCE: University of Guelph – Scientists help find Plant DNA code

Woodlands Suffer Large-scale Biodiversity Loss – Science Daily

Science Daily reports

New research shows that 21st century British woodlands are less distinctive than those of the early 20th century due to environmental change. Native woodland plants have re-organised over the last 70 years in response to increased soil fertility and loss of light related to increased canopy shading.

SOURCE: Science Daily – Woodlands Suffer Large-scale Biodiversity Loss
Bournemouth University. “Woodlands Suffer Large-scale Biodiversity Loss.” ScienceDaily 21 July 2009.
25 July 2009 <http://www.sciencedaily.com­ /releases/2009/07/090722083727.htm>

Should humans dictate nature in the name of conservation? – The Globe and Mail

The Globe and Mail reports

On naked patches of land in Western Canada and the United States, scientists are planting trees that don’t belong there. It’s a bold experiment to move trees threatened by global warming into places where they may thrive amid a changing climate.

read more @ the SOURCE: The Globe and Mail – Should humans dictate nature in the name of conservation?

1 ... 62 63 64 65 66 67 68 69 70 71 72 ... 111
RSS FEED EMAIL SUBSCRIPTION Follow Us on Twitter Join Our LinkedIN Group Become a Fan on Facebook Circle us on google+