Tag: "biodiversity" at biology news

Theyre healthier: With fewer parasites, invaders gain competitive edge over native species

... second only to habitat destruction in threatening biodiversity -- have far fewer parasites and less illness to contend with than their native competitors, according to two new studies in the Feb. 6 issue of the journal Nature. In super pests such as the European green crab, this escape from parasites means the c...

UNC ecologists find floodplains particularly vulnerable to invasion by exotic plant species

...ms, Peet said. Human activities tend to reduce the biodiversity of natural ecosystems, and although the long-term implications of the reduction are uncertain, few are likely to be positive. "A second central issue in ecology pertains to the transformation of ecological systems caused by the establishment of exoti...

Researchers help trace origin of Madagascars mammals

...table question." Study sheds light on Madagascar's biodiversity today The carnivorans living in Madagascar today a...s a treasure trove of information about evolution, biodiversity and biogeography. Accordingly, Field Museum researchers have been actively studying the fossil recor...

New life discovered in deep ocean floor

...e sediment cores, they discovered more biomass and biodiversity much deeper in the seafloor than they expected. INEEL's collaborator, Dave Boone at Portland State University, has already identified what he believes to be a new species of methanogen, and has published a family tree of unique DNA sequences from the...

Meeting the nitrogen management challenge: Arresting the nitrogen cascade

...f soil and water, or regional smog, and can reduce biodiversity on the affected land, impact agricultural and forestry production, and lead to health effects in humans and animals. "Given the critical need for nitrogen in food production and the sequential nature of the effects of too much nitrogen, it is impera...

Researcher identifies North American hotspots for fish conservation

...ionists have turned their attention to identifying biodiversity hotspots, areas that are threatened by human activ...ancement of Science focused on "the hottest of the biodiversity hotspots," the world's lakes, streams and wetlands. Speaking in that symposium Feb. 18, Gerald R. Sm...

Canaries in a coal mine?

...rldwide decline of amphibians is part of a general biodiversity crisis. Amphibians are clearly not canaries, but they are likely sending us the same message - our environment is changing and we are in danger if we don't pay attention!...

Tour operators to influence hotel industry to integrate environmental criteria into operations

...chasing, contributing to community development and biodiversity conservation, staff management and developing environmental management systems. For each issue, the guide offers a brief summary, the business benefits for adopting good practices and a sample of actions that managers can adopt to improve the perform...

Gretchen Daily named Nature Conservancy senior scholar

...ch as carbon sequestration, water purification and biodiversity conservation. Daily and her colleagues will assess the potential of various market-based approaches to conservation and assist The Nature Conservancy in their implementation. "More and more money goes into environmental conservation - billions of do...

Genome of a major member of gut bacteria sequenced

...ollection of microbes. Although the true extent of biodiversity is not known, it appears that the gut contains at least 1,000 different species of bacteria, and that their collective genomes ('the microbiome') contains 100-fold more genes than the human genome. These bacteria provide certain metabolic capabiliti...

Ecosystem engineers

...ough the construction of leaf shelters, increasing biodiversity around the leaves. In their study, Lill and Marquis wanted to see what effect shelter-building caterpillars had on the entire community living on oak saplings. In Missouri alone, over forty species of caterpillars make their homes on oaks. The inse...

Succulent Karoo to benefit from $8 million in grants

...l groups working to conserve the Succulent Karoo's biodiversity will receive much-needed assistance through US$8 m... Karoo is the only desert on Earth recognized as a biodiversity hotspot--one of 25 highly threatened regions where 60 percent of terrestrial species diversity is fo...

Tourism leaders and conservation organizations to devise Caribbean conservation action plan

...ularly important industry in several of the global biodiversity hotspots, such as the Caribbean and the Mediterran...y complex regions of the world, the Caribbean is a biodiversity hotspot. The Earth's 25 biodiversity hotspots combined make up just 1.4 percent of the planet's sur...

Jane Goodall to receive 2003 Environmental Citizen Award

...als in 30 countries, CI concentrates on protecting biodiversity hotspots: 25 places that comprise only 1.4 percen...Worlds: Life in the Balance to bring awareness to biodiversity conservation efforts. The film examines the planet's biological diversity from the polar regions to ...

Anthropologist pleads for fewer humans, more saved species

...on years ago, we began losing biodiversity in Africa. Starting around 10,000 years ago, this loss accelerated dramatically. Now we can actually put a number to how many extinctions are occurring ...

Society for Conservation Biology to hold 17th Annual Meeting in Duluth June 28-July 2

...ion, loss of coral reefs, the struggle to maintain biodiversity these challenging natural resource issues and many others faced across the world today are strongly linked to the interactions between land and water. The management and understanding of land, freshwater, and marine systems are essential to effectiv...

Top 25 turtles on death row

...y-one of the species occur in 11 of the world's 25 biodiversity hotspots, areas which house the greatest number of species yet face the most severe threats. Critical to the turtles' survival will be protection of these hotspots where small populations still remain: Indo-Burma, Sundaland, the Philippines, Wallacea...

Sneak copulations and the demise of the integrity of wild salmon populations

Releases of cultured organisms threaten native biodiversity and the integrity of natural communities. In species such as farm Atlantic salmon (Salmo salar L.) though, it was believed that the threat from the spread of domesticated traits in the wild was reduced by the relatively poor reproductive success of m...

Summit generates possible solutions to exchange of invasive species in Midwest waterways

...t them or hasten their extinction threatening the biodiversity that is so important to a healthy region. An experimental electric barrier designed to repel fish has been operating in the CSSC for roughly a year. While it is helping to slow the advance of invasive species, it does not prevent the exchange of al...

Diversity hot spots at cold seeps?

...ears ago, yet remarkably little is known about the biodiversity of these chemosynthetic ecosystems. Deep-sea vents...to limited dispersal may be important in governing biodiversity in the deep sea....

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