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#6thMassExtinction - Species Effects

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Dubai News, Abu Dhabi News, UAE News and International News from GulfNews.com – plus Gold rates, sport scores, city guides, prayer times, Dubai financial data, weather forecasts and more. Crisis in global oceans as populations of marine species halve since 1970. Marine species around the world, including populations of fish critical to human food security, are in potentially catastrophic decline according to research published today.

Crisis in global oceans as populations of marine species halve since 1970

Analysis by the Zoological Society of London (ZSL) of the population trends of marine species as presented in WWF's Living Blue Planet Report - an updated study of marine mammals, birds, reptiles and fish - shows a decline of 49 per cent in the size of marine populations between 1970 and 2012. As well as being disastrous for ecosystems, these findings spell trouble for all nations, especially people in the developing world who depend heavily on the ocean’s resources. The findings are based on the Living Planet Index, a database maintained and analysed by researchers at ZSL. The analysis tracked 5,829 populations of 1,234 species, from sea birds to sharks to leatherback turtles, making the data sets almost twice as large as past studies. Global food supply depleted Devastating figures "My children loved Finding Nemo. Evidence of species loss in Amazon caused by deforestation. Researchers studying plants, ants, birds, dung beetles and orchid bees in the Brazilian Amazon have found clear evidence that deforestation causes drastic loss of tropical forest biodiversity.

Evidence of species loss in Amazon caused by deforestation

Publishing this week in Ecology Letters, researchers highlighted how remaining areas of undisturbed and recovering forest provided the last refuge for many species unable to withstand the impact of human activity. As one of the most comprehensive surveys of the impacts of disturbance on tropical forest biodiversity ever conducted, the international team, including Lancaster University, conducted a detailed analysis of nearly 2,000 species of plants, birds, beetles, ants and bees that were found across more than 300 diverse sites in the Brazilian Amazon. They found, where forests had been cleared for cattle ranching and agriculture, plant and animal life was impoverished and remaining species invariably consisted of the same subset of the original flora and fauna.

But some hope still remains. Dr. Dr. Svein T veitdal sur Twitter : "Carbon emissions threaten British butterflies. Toni Lowe on Twitter: "□□ Tanzania’s Elephant Bloodbath — Can It Be Stopped Before It's Too Late? - @Canine_Rights" Mina*Bad Yoga Kitty* sur Twitter : "RT&SIGN! #WeThePeople Speak as ONE! Justice for Brutal TORTURE & death of #leopard in #India. Greenpeace sur Twitter : "Humpback whales don’t just make sounds, they make songs! Listen…

Greenpeace sur Twitter : "The UN is upgrading #wildlife crime to be on par with drugs and arms trafficking. #worldcatday. Los Angeles Times sur Twitter : "Paradise losing: Many Hawaii species are on the road to extinction @latimesopinion: Hunting trophies: Delta, United and American ban transport - BBC News. Delta, United and American Airlines have banned the shipment of big-game trophies on flights after the illegal killing of Cecil the lion in Zimbabwe.

Hunting trophies: Delta, United and American ban transport - BBC News

The airlines announced that they would no longer transport lion, rhinoceros, leopard, elephant or buffalo remains. They have not, however, given official reasons for their announcements. Delta flies direct to a number of African cities and was subjected to an online petition to ban such shipments. American Airlines and United fly to fewer sub-Saharan cities than Delta, but United said in a tweet its decision to stop carrying trophies was "effective immediately". United spokesman Charles Hobart said: "We felt it made sense to do so. " Cecil was shot illegally in July by US dentist Walter Palmer of Minnesota. Mr Palmer is believed to have paid about $50,000 (£32,000) to hunt Cecil, a major tourist attraction in the Hwange National Park.

As recently as May, Delta said it would continue to allow such shipments. Foul-Water Season: Summer Algal Blooms. Increasing in size and severity, harmful algal blooms threaten both wildlife and people 07-01-2015 // Laura Tangley FRANK SZOLLOSI WAS ASLEEP in his Toledo, Ohio, home one Saturday morning last summer when a neighbor pounded on his front door.

Foul-Water Season: Summer Algal Blooms

“Don’t drink the water!” The man shouted. “Don’t let your kids drink the water!” Five hours earlier, at 2:00 a.m. on August 2, 2014, Toledo officials had warned residents not to drink from their taps after scientists detected high levels of microcystin—a potent liver toxin produced by algal blooms—at the city’s water-treatment plant on Lake Erie. “We’d been warning all summer that something like this could happen,” says Szollosi, manager of regional outreach campaigns for the National Wildlife Federation. Green Monster Rerun Four decades ago, when it was dubbed “North America’s Dead Sea,” Lake Erie was plagued by similar blooms, along with periodic fires on a tributary, the Cuyahoga River.

TheClimateInstitute sur Twitter : "2°C of global warming will see corals disappear from the Great Barrier Reef - only strong targets can protect it. SAVE MY BUSHLAND HOME 2. Heat, drought cook fish alive in Pacific Northwest. Freakishly hot, dry weather in the Pacific Northwest is killing millions of fish in the overheated waters of the region's rivers and streams.

Heat, drought cook fish alive in Pacific Northwest

“We’ve lost about 1.5 million juvenile fish this year due to drought conditions at our hatcheries,” Ron Warren of Washington State's Department of Fish and Wildlife said in a statement. “This is unlike anything we’ve seen for some time. " Sockeye salmon losses in the Columbia River due to the heat are in the hundreds of thousands, said Jeff Fryer, senior fishery scientist with the river's Inter-Tribal Fish Commission. The fish were returning from the ocean to spawn when the "unprecedented" warm water killed them, he said. Water temperatures in the Columbia River — part of which runs along the border of Oregon and Washington — reached the low 70s shortly after July 4, something that doesn't usually happen until August, if at all, Fryer said.

July will likely be one of Seattle's hottest single months on record, the National Weather Service reported. Climate Change and Mosquitoes: A Deadly Combination for Hawaii's Rare Birds. For you and me, a single mosquito bite probably isn’t much more than an annoyance.

Climate Change and Mosquitoes: A Deadly Combination for Hawaii's Rare Birds

The colorful Hawaiian birds known as ‘i’iwi aren’t so lucky. For these increasingly rare birds, one mosquito nibble means almost certain death. Mosquitoes are not native to Hawaii. The insects arrived on the islands about two centuries ago, and with them came the parasite that causes avian malaria (a different form of the disease that can affect humans).

Hawaii’s birds evolved far away from either mosquitoes or avian malaria, and as a result many of them have little to no resistance to the disease. Mike Hudema sur Twitter : "#Climate change causing mass #bumblebee habitat loss: scientists #savethebees #cdnpoli. Tiny plastic pieces accumulate in a huge marine filter-feeder. Besseling, E., et al.

Tiny plastic pieces accumulate in a huge marine filter-feeder

“Microplastic in a macro filter feeder: Humpback whale Megaptera novaeangliae.”Marine pollution bulletin (2015). DOI: 10.1016/j.marpolbul.2015.04.007 Graphical abstract from Besseling et al. 2015 Microplastics are small (<5mm) pieces of plastic found in the world’s oceans. They are products of the disposal and breakdown of larger plastic pieces. It is thought that the issue of micro-, meso-, and macro- (>20mm) plastic ingestion may be exacerbated in large filter-feeding whales which typically have less selective capture. The whale subject was a juvenile female weighing in at a svelte 16 thousand kilograms. Figure 1. Table 1. Pink Salmon Risks a Double Threat of Acidification. By Alister Doyle, Reuters Pink salmon in the Pacific Ocean face a double threat of acidification linked to greenhouse gas emissions since it slows their early growth in rivers and disrupts the chemistry of seawater.

Pink Salmon Risks a Double Threat of Acidification

EcoWatch sur Twitter : "#ClimateChange Is a Major Buzz Kill for #Bumblebees @Greenpeace @ClimateReality @sierraclub. Richard McLellan sur Twitter : "Recovery planning: Restoring life to our #ThreatenedSpecies #biodiversity. Biocentric Ecology sur Twitter : "Climate-change is turning male dragon lizards into females: ScienceDaily #ecocide #ecology" Greenpeace sur Twitter : "There are only 97 left, but we are one step closer to saving the vaquitas! #ClimateChange YYC sur Twitter : "The #6thMassExtinction: We Aren’t The Dinosaurs, We’re The Asteroid #climatechange. Global-consciousness sur Twitter : ".. that day is here. #6thMassExtinction...

Ricky Gervais sur Twitter : "I've been overwhelmed by your unanimous condemnation of poachers, trophy hunters & animal abusers. There is hope yet. Ricky Gervais sur Twitter : "The West African Black Rhino has been officially declared extinct. It was hunted for its horn. Shame on our species. Irina Tikhomirova sur Twitter : "5 things you can do about Earth’s #6thMassExtinction (being afraid isn’t one): MT @Greenpeace.