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"Warmer global temperatures aren't just wiping out the habitat of polar bears and penguins. They're also affecting many species closer to home -- including some right in your back yard. In this year's State of the Birds report, issued earlier this month, researchers from the National Audubon Society, U.S. Department of Interior, Cornell Lab or Ornithology, and others studied how climate change is affecting the habitats, ranges, and populations of birds across North America. OnEarth takes a look at eight vulnerable bird species from across the continent."

"The Galapagos fur seal's move into a new habitat suggests swifts changes are occurring in the Earth's environment, with or without El Nino."

"Illegal charcoal production in the Congo is threatening mountain gorilla habitat, but an elegant solution in the form of hand-operated biomass briquette presses may help gorilla populations rebound."

"Research has shown that marine protected areas (MPAs)-areas where fishing and other potentially destructive activities are regulated-are benefitting, not just the fish habitats they are known to aid, but nearby coral reefs as well. "That is, while coral cover initially continued to decrease in the MPA's first few years, decline slowed and then eventually stabilized after several years of MPA establishment."

"There are only about 3,200 tigers left on the planet. Habitat loss and illegal pouching are largely to blame. In the last 100 years, world tiger populations have been decimated by 95% due to the demand for tiger bones, skins & other body parts."

"Tigers in the Greater Mekong region are facing extinction, their numbers down more than 70 percent in slightly more than a decade due to poachers and habitat destruction."

Conservationists called the 13-nation agreement an important step in protecting the wild cats, whose numbers have plummeted in recent decades as human encroachment has eliminated more than nine-tenths of their habitat. Experts say there are fewer than 3,500 wild tigers today, compared to an estimated 100,000 at the beginning of the 20th century. Hailing the agreement, Michael Baltzer, head of the WWF Tiger Initiative, said "There never has been a high-level government commitment to take forward tiger conservation."

Global climate change poses a significant threat to migratory bird populations, which are already stressed by the loss of habitat and environmental pollution, according to a report released Thursday.

Maps in the new Atlas of Global Conservation show the diversity of bird, animal and plant species populations, which are among 80 that scientists have produced for a comprehensive look at the planet's eco-regions. The maps crosses three types of habitats that exist: terrestrial, freshwater, and marine.

Science and experience have supported this fact for the last 20 years in the Coral Triangle countries of Indonesia, the Philippines, Malaysia and Papua New Guinea, where various forms of MPA are being implemented to protect coral reef habitats, manage local reef-associated fisheries and generate income for local residents through improved fishing and diving tourism enterprises.

"The woodlands and pastures of southern Spain once provided fertile hunting ground for the Iberian lynx, but habitat destruction, loss of prey, and trapping diminished the population of the reclusive feline dramatically, to just 100 animals a decade ago, making it the most endangered cat in the world. Now, thanks to a combination of political action, high-tech monitoring, and improved public awareness, the lynx is making a slow, if not always steady, comeback in Andalusia."

The steady loss of forests, soils, wetlands, fisheries, species and coral reefs around the world is closely tied to the lack of value we put on nature, says three-year study.

"One in six mangrove species faces extinction as coastal ecosystems are being destroyed or damaged by development, aquaculture, logging, and climate change, according to a new study. On the Atlantic and Pacific coasts of Central America, as many as 40 percent of mangrove species are threatened, the report said."