threatened 2 3

Tag: "threatened" at biology news

Ocean acidification threatens cold-water coral ecosystems

... years that shallow-water tropical coral reefs are threatened by both warming oceans and chemical changes in sea...nd important cold-water corals are, they are being threatened by a one-two punch. "First, bottom trawlers smash them to bits. Then, ocean acidification will pro...

First surveys of Tanzanian mountains reveal 160+ animal species, including new & endemic

...s a crucial source of water and home to unique and threatened wildlife, World Wildlife Fund considers the Eastern Arc Mountain range and coastal East Africa a conservation priority and works with local communities and partners to protect the natural richness of the region. ...

Seeing the serpent

... respond," Isbell said. Some primate groups less threatened by snakes show fewer signs of evolutionary pressure to evolve better vision. For example, the lemurs of Madagascar do not have any venomous snakes in their environment, and in evolutionary terms "have stayed where they are," Isbell said. In South Ame...

On the track of tiny larvae, a new model elucidates connections in marine ecology

... model's predictions to empirical genetic data for threatened staghorn corals. This test showed that combining the oceanographic and genetic models allowed the researchers to successfully predict genetic patterns on a regional scale. This breakthrough approach to integrating genetic and oceanographic models hel...

Ecosystem services and invasive species

...t shifts in species composition might occur in the threatened areas. Heard will discuss the results and the eleven sites established in the Great Smoky Mountains National Park for long-term monitoring of both canopy and understory species. Valuation of ecosystem services of Overton Park, Memphis, TNMonday A...

New research finds surveys of larval-stage organisms effective for measuring marine biodiversity

...ty hotspot," the Coral Triangle is one of the most threatened marine environments in the world. Often areas with particularly high rates of biodiversity are targeted for conservation, so the new method could help by highlighting potential regions for protection. Barber also believes this new information will ...

Major initiative proposed to address amphibian crisis

...s say that 32 percent of all amphibian species are threatened and at least nine ?perhaps as high as 122 ?have become extinct since 1980. It's time, they say, for a more organized and effective approach to address the various diseases, habitat loss, invading species and other causes of this problem. "This is ...

Species unique to tidal marshes face threats

...reducing the area of tidal marshes. They are also threatened by toxic wastes and invasive species. Greenberg and his coauthors argue for an expanded research program to try to understand how species will respond to these threats. BioScience publishes commentary and peer-reviewed articles covering a wide range...

Report warns about carbon dioxide threats to marine life

...orosis in humans. As a result, reef structures are threatened because corals may be unable to build reefs as fas...supported by marine calcifiers may be particularly threatened by ocean acidification. These include cold-water reefs, which are extensive structures that provide ...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...of Colombia. The reserve is an important home for threatened species, and its protection was a top priority of ...a unique jewel that will prevent the extinction of threatened species of birds and frogs found nowhere else on the planet." El Dorado is the sole breeding ground...

New angiogenesis finding may help fight cancer growth

... flow to the heart, increasing the blood supply to threatened heart muscle. NK-B also plays a role in a mysterious but common syndrome called preeclampsia, in which soaring blood pressure and low blood oxygen levels harm or even kill pregnant women and their babies. Philip Lowry, at the University of Readin...

A human taste for rarity spells disaster for endangered species

...ntioned activities like ecotourism may destabilize threatened populations. How to conserve biodiversity when simply declaring a species endangered catalyzes its exploitation? Since many collectors, pet owners, and ecotourists actually care about biodiversity, the authors hope that education may go a long way...

Wolves are suffering less from inbreeding than expected

...- We think our results are relevant also for other threatened populations of carnivores. Such spe cies require large areas for their territories and most natural reserves are of a size in which only a few territories can be accommodated. Without immigration inbreeding will increase. If the pattern seen in the S...

New dwarf buffalo discovered by chance in the Philippines

...very highest in the world, but so is the number of threatened species." B. cebuensis also can help scientists to better understand "island dwarfing," whereby some large mammals confined to an island shrink in response to evolutionary factors. This may occur due to a lack of predators (the animal no longer nee...

First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands

...of Los Angeles County. Coral reefs are highly threatened repositories of extraordinary biodiversity and therefore have been called "the rainforests of the sea", but little is known about the ocean's diversity as compared to its terrestrial counterpart. According to Dr. Nancy Knowlton of Scripps Instit...

Triple threat: World fin trade may harvest up to 73 million sharks per year

...f Wild Flora and Fauna (CITES), and 20 percent are threatened with extinction according to the 2006 Red List of Threatened Species. Used in shark fin soup, a delicacy served at Chinese weddings and other celebrations for centuries and more recently at business dinners in Southeast Asia and the Pacific Rim, f...

Global map shows new patterns of extinction risk

...ted, with mammal, bird and amphibian numbers being threatened by different things, in different locations." E...ferent include: New Zealand is a hot spot for threatened birds because of the danger posed by introduced rats and cats. Mammals are highly threatened acros...

Endangered shortnose sturgeon saved in Hudson River

...the U.S. Endangered Species Act. "Endangered and threatened U.S. fish outnumber mammals, reptiles, birds, etce...66 when the federal government started identifying threatened species, only 16, including the American alligator, American peregrine falcon and brown pelican, hav...

Recently discovered species gain protection

... reserve is also critically important for globally threatened frog species, whose last remaining habitat is dimi...a Forzosa, and belongs to one of the most globally threatened amphibian groups, the harlequin toads. In addition to the piha, the reserve also contains populati...

Twenty of world's 162 grouper species threatened with extinction

...e and important commercial fish, found that 20 are threatened with extinction unless proper management or conser...and to manage spawning aggregations of many of the threatened grouper species. Outer reef areas are often not incorporated into MPAs, and spawning aggregations ne...

1 2 3 4