Showing posts with label Wildlife. Show all posts
Showing posts with label Wildlife. Show all posts

Wednesday, December 23, 2015

For the second time in two months, a rare deadly yellow bellied sea snake has washed ashore at one of southern California's most popular beaches.




Pelamis platurus, related to the cobra family (Elapidae)
Yellowbelly Sea Snake      Carpenter0     Wikipedia.org


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El Nino washes a SECOND posionous sea snake onto popular California beach which has not seen any for THIRTY YEARS

For the second time in two months, a rare deadly sea snake has washed ashore at one of southern California's most popular beaches.

A dead 27-inch-long male yellow bellied sea snake was discovered last week during a coastal cleanup campaign by volunteers for the Surfrider Foundation in Huntington Beach, the Los Angeles Times reported.

In October, a two-foot-long yellow bellied sea snake was discovered slithering onto Silver Strand State Beach in Ventura County, but it died shortly after being taken to a US Fish and Wildlife Service office nearby.

The venomous sea serpent, known to scientists as Pelamis platura, was first spotted in 1972 during an El Niño in San Clemente.


Deadly: A dead 27-inch-long male yellow bellied sea snake (above) was discovered last week during a coastal cleanup campaign by the Surfrider Foundation


Deadly: A dead 27-inch-long male yellow bellied sea snake (above) was discovered last week during a coastal cleanup campaign by the Surfrider Foundation


The latest yellow bellied sea snake discovered was found at the popular Huntington Beach in California (file photo above)


The latest yellow bellied sea snake discovered was found at the popular Huntington Beach in California (file photo above)

A descendant of Australian tiger snakes, experts believe the arrival of the sea snake is a harbinger of El Niño because the last time it appeared in California was during the weather system in the '80s.



120 “cold-stunned” sea turtles wash up on the shores of Cape Cod Bay



The Boston Globe

Scores of rare turtles found stranded on Cape

Rescuers placed cold-stunned turtles in fruit boxes.
Wellfleet Bay Wildlife Sanctuary
Rescuers placed cold-stunned turtles in fruit boxes.
Massachusetts Audubon Society volunteers recovered about 120 “cold-stunned” sea turtles during the weekend after strong winds caused them to wash up on the shores of Cape Cod Bay.

The majority of the reptiles found on the beaches of Wellfleet, Truro, Eastham, and Brewster were Kemp’s ridley sea turtles, a critically endangered species and the rarest type of sea turtle.

It was an unusually large late-season stranding for the turtles, who most often get stuck on Cape Cod shores around Thanksgiving as they try to make their way south to warmer waters for the winter.

Young sea turtles often feed in Cape Cod Bay during the summer but can get trapped in the “hook” of the Cape and become hypothermic as temperatures drop, according to Mass Audubon.

Despite their rarity, Kemp’s ridleys are the type of turtle most often found stranded on Massachusetts beaches.


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Sunday, December 20, 2015

Fukui Gov Issei Nishikawa will soon give his consent for the restart of two nuclear reactors at Kansai Electric Power Co’s Takahama plant


To deliver electricity in a stable and safe. Each employee will continue to support it with a passion and mission of each as a company take charge of an important lifeline.
THE KANSAI ELECTRIC POWER CO., INC.
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JAPAN TODAY


Fukui governor to give consent for nuclear plant restart

 
FUKUI —

Fukui Gov Issei Nishikawa will soon give his consent for the restart of two nuclear reactors in the prefecture on the Sea of Japan coast, sources close to the matter said Sunday, as the central government seeks to bring more reactors back online after the 2011 Fukushima nuclear crisis.

The governor will visit the site of the Nos. 3 and 4 reactors at Kansai Electric Power Co’s Takahama plant on Monday to check safety measures before expressing his consent, they said. The governor’s consent is necessary to restart the reactors.

Earlier in the day, industry minister Motoo Hayashi, in charge of the country’s energy policy, met with Nishikawa at the Fukui prefectural office and sought the Fukui governor’s consent for the restart of the two nuclear reactors.



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Monday, December 14, 2015

A toxin produced by marine algae is inflicting brain damage on sea lions along California's coast. It may negatively impact foraging and navigation in sea lions, driving strandings and mortality,




NBC NEWS
 
News
Dec 14 2015, 4:51 pm ET

Algae Causing Sea Lion Brain Damage in California, Study Shows

 
Image: ENVIRONMENT-US-RESEARCH-BIOLOGY-NATURE-ANIMAL-FILES
In this September 11, 2013 file photo, a sea lion scratches himself on Pier 39 at Fisherman's Wharf in San Francisco, California. DON EMMERT / AFP - Getty Images
 
 
WASHINGTON — A toxin produced by marine algae is inflicting brain damage on sea lions along California's coast, causing neurological and behavioral changes that can impair their ability to navigate in the sea and survive in the wild, scientists said on Monday.

Brain scans on 30 California sea lions detected damage in the hippocampus, a brain structure associated with memory and spatial navigation, in animals naturally exposed to the toxin known as domoic acid, the researchers said.

Domoic acid mimics glutamate, a chemical that transmits nerve impulses in the brain, and leads to over-activation of hippocampus nerve cells and chronic epilepsy, according to Emory University cognitive psychologist Peter Cook, who worked on the study while at the University of California-Santa Cruz.

"The behavioral deficits accompanying brain damage with domoic acid are severe, and may negatively impact foraging and navigation in sea lions, driving strandings and mortality," Cook said.
Hundreds of sea lions annually are found stranded on California beaches with signs of domoic acid poisoning such as disorientation and seizures. Thousands are thought to be exposed to the toxin.


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Over 15,000 baby sea lions estimated dead as Pacific sea life dies off



NaturalNews's profile photo
NaturalNews






Sea lions


(NaturalNews) The Marine Mammal Center rescued over a hundred sea lions in a 10-day period off the West Coast of California in the winter of 2015. The influx of stranded sea lions is a sign that the health of the ocean is deteriorating. From January 1 to February 12, 2015, National Geographic counted nearly 500 rescued sea lions, an amount that is alarming scientists. Something has gone awry in the West Coast waters.

The sea lions are not finding food, they are losing strength, and many are starting to wash ashore. The startling trend didn't start in 2015. The number of stranded sea lions began rising in the winter of 2013, when scientists started noticing waves of sea lion pups washing ashore. Scientists believe the ocean's temperatures have shifted. Warmer currents may be affecting food sources that the sea lions depend on. Others see problems in ocean water acidity. The animals are being forced to go on longer quests to find food. Many of the pups are being left behind, stranded, while their parents search for food.

One-third of sea lions born last summer wiped out

 

The death of this sentinel species is an indication of changes in ocean climate and ecosystem. Sea lion prey, which include sardines and crayfish, are reportedly disappearing in numbers as well, forcing the starving sea lions to go on longer quests in search of food. Scientists are concerned about ocean pH and rising acidity of the waters. According to San Jose Mercury News, marine biologists warn that, if the trend continues, an entire generation of California sea lions could be wiped out.
When speaking to NBC News, Sea World San Diego senior veterinarian Hendrick Nollens reported, "We had rescued 19 California sea lions in January [2013]. This year we already rescued 87 pups in that same month. So this event seems to be much larger."

According to the Daily Breeze, the "unusual mortality event" wiped out two-thirds of the sea lion pup population off the West Coast in 2013.

Rehabilitation centers are taking several hundred pups in this year to save the species from total extinction.

NOAA wildlife biologist Sharon Melin confirmed that most pups captured in the wild in 2013 were only half their weight. After they are released back into the wild, they are expected to maintain their weight. When Melin went on a research trip in September 2013, she reported that the weight of the pups was still low. She brought back the bad news: "We've told the centers to prepare for the worst."
The U-T San Diego concurred, reporting that pups in the Channel Island rookeries continued to struggle despite rehabilitation efforts. On average, pups were 19% below their average weight, even after rehabilitation.

Jim Milbury of NOAA Fisheries says that West Coast sea lions have a birth rate of about 50,000 a year, and San Diego 6 reported on Jan. 28, 2015, that nearly 1 of 3 pups born the previous summer have already died.

If 33% of pups born in 2014 have already died, then based on the average birth rate, over 15,000 have passed away in that short time frame. 

Ocean water acidity on the rise, subjecting aquatic life to disease

 

According to Jennifer Palma of Global News, ocean health is deteriorating, indicated by a die off of scallops and oysters. "Getting pacific oysters and scallops is next to impossible; the industry is in crisis. ... So what's killing the Pacific oysters and scallops? A possible combination of factors including warmer oceans, decreasing acidity levels and potentially disease," she said in a report.
University of British Columbia marine microbiology professor Curtis Suttle is concerned about changes in the pH of ocean waters. "The hypothesis -- there's a working hypothesis --w is that these changes, these excursions in pH, are making the shellfish vulnerable to infection by diseases that they would normally be resistant to."


Sources for this article include:


http://enenews.com
http://enenews.com
http://enenews.com
http://www.dailybreeze.com

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Friday, December 11, 2015

Radiation from the 2011 Fukushima nuclear disaster in Japan has been detected at an increased number of sites off U.S. shores, including the highest level in the area detected to date, scientists announced Thursday.



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'Fukushima Fingerprint': Highest-Yet Radiation Levels Found Off US Coast

'The changing values underscore the need to more closely monitor contamination levels across the Pacific.'

 
 


Scientists test seawater samples off the coast of Japan near the Fukushima Daiichi nuclear power station. (Photo: IAEA Imagebank/flickr/cc)
Radiation from the 2011 Fukushima nuclear disaster in Japan has been detected at an increased number of sites off U.S. shores, including the highest level in the area detected to date, scientists announced Thursday.

While the levels are still too low to be considered a threat to human or marine life by the government's standards, tests of hundreds of samples of Pacific Ocean water reveal that the Fukushima Daiichi plant has continued to leak radioactive isotopes more than four years after the meltdown—and must not be dismissed, according to Woods Hole Oceanographic Institution (WHOI) marine radiochemist Ken Buesseler.

"Despite the fact that the levels of contamination off our shores remain well below government-established safety limits for human health or to marine life, the changing values underscore the need to more closely monitor contamination levels across the Pacific," Buesseler said Thursday. "[F]inding values that are still elevated off Fukushima confirms that there is continued release from the plant."
Scientists from the WHOI and Buesseler's citizen-science project Our Radioactive Ocean discovered trace amounts of cesium-134, the "fingerprint" of Fukushima, in 110 new Pacific samples off U.S. shores in 2015 alone.

The isotope is unique to Fukushima and has a relatively short two-year half life, which means "the only source of this cesium-134 in the Pacific today is from Fukushima," Buesseler said.


Map shows the location of seawater samples taken by scientists and citizen scientists that were analyzed at the Woods Hole Oceanographic Institution for radioactive cesium as part of Our Radioactive Ocean. Cesium-137 is found throughout the Pacific Ocean and was detectable in all samples collected, while cesium-134 (yellow/orange dots), an indicator of contamination from Fukushima, has been observed offshore and in select coastal areas. (Figure by Jessica Drysdale, Woods Hole Oceanographic Institution)Map shows the location of seawater samples taken by scientists and citizen scientists that were analyzed at the Woods Hole Oceanographic Institution for radioactive cesium as part of Our Radioactive Ocean. Cesium-137 is found throughout the Pacific Ocean and was detectable in all samples collected, while cesium-134 (yellow/orange dots), an indicator of contamination from Fukushima, has been observed offshore and in select coastal areas. (Figure by Jessica Drysdale, Woods Hole Oceanographic Institution)

One sample collected roughly 1,600 miles west of San Francisco revealed the highest radiation level detected to date off the West Coast, the researchers said in a post on the project's website. "[In] one cubic meter of seawater (about 264 gallons), 11 radioactive decay events per second can be attributed to cesium atoms of both isotopes. That is 50 percent higher than we've seen before."

"[T]hese long-lived radioisotopes will serve as markers for years to come for scientists studying ocean currents and mixing in coastal and offshore waters," Buesseler continued.

The 2011 accident, prompted by an earthquake and tsunami off Japan's east coast, was the world's worst nuclear disaster since Chernobyl in 1986 and resulted in the near-total meltdown of three nuclear reactors at the Fukushima plant and a mass evacuation of the prefecture. Despite ongoing warnings about long-term health and environmental impacts and widespread opposition to nuclear power in the wake of the meltdown, Japan in August restarted a reactor at the Sendai power plant, about 620 miles southwest of Tokyo.


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Wednesday, November 25, 2015

California's ongoing drought has left millions of waterfowl that migrate from northern climes with fewer places to land, seek food.



VOA Voice of America

California Drought Affects Winter Refuges for Migratory Birds

 
Sandhill cranes land in flooded fields at the Sandhill Crane Reserve near Thornton, California, Nov. 3, 2015. The state's ongoing drought has left millions of waterfowl that migrate from northern climes to California with fewer places to land, seek food.
Sandhill cranes land in flooded fields at the Sandhill Crane Reserve near Thornton, California, Nov. 3, 2015. The state's ongoing drought has left millions of waterfowl that migrate from northern climes to California with fewer places to land, seek food.
 
 
Reuters
 
With their red heads, 2.13-meter (7-foot) wingspan and a trilling call, migrating Sandhill Cranes provide a dramatic sunset spectacle as they land by the thousands in wetlands near Sacramento each night during the fall and winter.

But the state's ongoing drought has left the cranes, along with millions of other waterfowl that migrate from Canada and other northern climes to spend the winter in California, with fewer places to land, threatening their health as they crowd in on one another to seek shelter and food.

"They're left with fewer and fewer places to go, which will start to have impacts on their population," said Meghan Hertel, who works on habitat issues for the Audubon Society in California. "They can die here from starvation or disease or be weaker for their flight back north."


Beloved sight


The cranes are a beloved sight in California's Sacramento and San Joaquin Valleys when they arrive each fall.

Tourists flock to see them as they take off en masse at dawn or land in a series of swooping, trilling groups as the sun goes down.


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Related Articles

They are our closest living relatives in the animal kingdom, yet more than half of the world's primates are facing extinction due to our destruction of the habitats where they live.





Primates in peril: HALF of our closest living relatives are on the brink of extinction around the world

  • Scientists released a new report on the world's most endangered primates
  • The Hainan gibbon in China has just 25 individuals remaining in the wild
  • There are just 50 Northern sportive lemur left living in Madagascar
  • Scientists warn new efforts are needed to save many of these species
Danger list: Endangered primates that are battling for survival
Danger list: Endangered primates that are battling for survival
They are our closest living relatives in the animal kingdom, yet more than half of the world's primates are facing extinction due to our destruction of the habitats where they live.
Burning and clearing of large areas of tropical forest, combined with hunting of primates for food and illegal wildlife trade, has placed many species of apes, lemurs and monkeys at risk of dying out.
These include iconic species such as the Sumatran orang-utan, Grauer's gorilla, the Northern brown howler monkey and the Hainan gibbon.
More than half of the world's primates are at risk of dying out due to the threat posed by habitat loss and hunting. The Hainan gibbon (pictured) is thought to be the world's most endangered primate, with just 25 of the animals left living on an isolated island in China
More than half of the world's primates are at risk of dying out due to the threat posed by habitat loss and hunting. The Hainan gibbon (pictured) is thought to be the world's most endangered primate, with just 25 of the animals left living on an isolated island in China
Scientists and conservation experts have now updated a report on the world's 25 most endangered primates based on the current knowledge of the animals numbers and the risks facing them.
Dr Christoph Schwitzer, a primatologist and director of conservation at Bristol Zoological Society who helped compile the list, said: 'This research highlights the extent of the danger facing many of the world's primates.

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Wednesday, November 18, 2015

Fukushima News 11/4/15: “Deadly” Radiation Levels Detected Outside Fukushima Reactor 2 Vessel

     

Wednesday, September 23, 2015

Researchers : "the [destructive] changes in bird habitats and behavior between now and 2070 will equal the evolutionary and adaptive shifts that normally occur over tens of thousands of years."

 

 



SF Gate

The silence of the birds: When nature gets quiet, be very afraid



three_dead.jpg
Image 2 of 9 | The silence of the birds: Be afraid
Researchers say "the [destructive] changes in bird habitats and behavior between now and 2070 will equal the evolutionary and adaptive shifts that normally occur over tens of thousands of years." Yay humans!
Brutal wildfire images too much to bear? Fatigued by non-stop news of extreme weather, record-low snowpack, emaciated polar bears, unprecedented this and fast-receding that, a natural world that appears to be going more or less insane?
Maybe you need some quiet. Get outside, sit yourself down and let nature’s innate healing powers soothe your aching heart.
Sounds good, right? Sounds refreshing. Sounds… well, not quite right at all. Not anymore.
Have you heard? Or more accurately, not heard? Vicious fires and vanishing ice floes aside, there’s yet another ominous sign that all is not well with the natural world: it’s getting quiet out there. Too quiet.
Behold, this bit over in Outside magazine, profiling the sweet, touching life and times of 77-year-old bioacoustician and soundscape artist Bernie Kraus, author of “The Great Animal Orchestra” (2012), TED talker, ballet scorer, and a “pioneer in the field of soundscape ecology.”
Krause, last written about on SFGate back in 2007, is a man whose passion and profession has been making field recordings of the world’s “biophony” for going on 45 years, setting up his sensitive equipment in roughly the same places around the world to record nature’s (normally) stunningly diverse aural symphony – all the birds, bees, beavers, wolves, babbling streams, fluttering wings, the brush of trees and the rush of rivers – truly, the very pulse and thrum of life itself.

Read More Here

Friday, May 2, 2014

Keystone XL pipeline : A group of 56 senators -- all 45 Republicans plus 11 Democrats –- introduced legislation on Thursday that would bypass the Obama administration and grant approval for the pipeline.


Senators Seek To Force Approval Of Keystone XL Pipeline

Posted: Updated:
HEIDI HEITKAMP
 

WASHINGTON –- Senate supporters of the Keystone XL pipeline say they think they have enough votes to pass a bill that would force the approval of the controversial project. A group of 56 senators -- all 45 Republicans plus 11 Democrats –- introduced legislation on Thursday that would bypass the Obama administration and grant approval for the pipeline.
Sens. John Hoeven (R-N.D.) and Mary Landrieu (D-La.) introduced the bill on Thursday. Democrats Heidi Heitkamp (D-N.D.), Mark Begich (D-Alaska), Mark Pryor (D-Ark.), Joe Manchin (D-W.Va.), Joe Donnelly (D-Ind.), Claire McCaskill (D-Mo.), Mark Warner (D-Va.), Jon Tester (D-Mont.), John Walsh (D-Mont.), and Kay Hagan (D-N.C.) are cosponsoring it.
Because it crosses an international border, the decision on the pipeline falls under the authority of the State Department. The State Department announced another delay on a decision last month in response to a court decision that invalidated the pipeline's proposed route through Nebraska, saying that it would wait to decide until there is more clarity on where the pipeline will ultimately run. The legislation would grant approval to "any subsequent revision to the pipeline route" in Nebraska, without requiring further environmental analysis.
"We continue to hear delay, delay, delay from the Administration about the Keystone XL pipeline. I’m beyond sick of it," Heitkamp said in a statement Thursday. "We have strong bipartisan support in the Senate for this project –- and I’m proud to have recruited support from 10 other Democrats last month. Now, all of those Democrats also signed onto this bill that we crafted to fully approve the construction of the Keystone pipeline. If the Administration isn’t going to make a decision on this project after more than five years, then we’ll make it for them. End of story."

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Monday, February 24, 2014

Hmmmm Factor : This lobster is half female, half male—split right down the middle was caught by a fisherman off the coast of Newfoundland, Canada

Left Side Male, Right Side Female: Extremely Strange Creatures

By , Epoch Times | February 23, 2014
This lobster is half female, half male—split right down the middle, as seen by the two-toned coloring. It was caught by a fisherman off the coast of Newfoundland, Canada, last year and the photo was posted on Reddit by his nephew.

The chances of catching such a two-toned lobster are 1 in 50 million to 100 million, staff at the Mount Desert Oceanarium said when a similar lobster was caught in Bar Harbor, Maine, in 2006.
It may be rare to catch such a lobster, but this phenomenon is found not only in lobsters. It is also found in butterflies and numerous other organisms.
According to ancient Taoist beliefs, the human body is divided into two genders corresponding to yin and yang. The left side is male, associated with yang chi, and the right side is female, associated with yin chi.
Not all two-toned lobsters are part male and part female (gynandromorphs).

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Saturday, February 22, 2014

Wolves are the "Ultimate Eco-Engineers"

Mankind in their journey to control and develop as far as the eye can see have played a significant role in the changes that have taken place in our environment. The construction and restructuring of forests and natural habitats. The eradication of native wildlife species in the never ending expansion of commercial food production and land development.

These pursuits have endangered many species having been labeled as pests in their eyes. Some have been eradicated to the brink of extinction. Others have required protection as endangered. Others still have had t heir populations explode for lack of natural predators. Forcing culls to be organized to keep their numbers in check.

Mankind knew what they wanted to achieve However, they had no understanding of what changes and perils they were manifesting on the natural balance of our world. One such member of the animal kingdom are wolves. Hunted and repudiated as a dangerous nuisance. They have helped mankind understand that they are so much more than that.

 


                    Joel Sartore/National Geographic    A portrait of the Yellowstone gray wolf.

After 70 years these beautiful creatures were re-introduced to the Yellowstone National Park area and the changes that have taken place since  then have been amazing. The wolves have shown their true worth as well as the complicated web of life that we had not been able to see in our quest to tame a natural habitat . They have taught us that the intricacies of the natural web of life requires a balance that man should not tamper with. We as human beings consider ourselves superior to the other members of the animal kingdom. However, we must understand that we are simply a link in the chain of the intricate web of life that exists on our planet.

Providing balance where none had been. Creating diversity to provide a balanced habitat for all wildlife. The wolves have proven themselves to be the "Ultimate Eco-Engineers".

(C) ~Desert Rose~

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World News How wolves can alter the course of rivers

worldnews422 worldnews422

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Published on Feb 20, 2014
When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers. How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of rivers
When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers. How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of rivers
When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers. How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of rivers How wolves can alter the course of riversWhen wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix titled, How Wolves Change Rivers.When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable trophic cascade occurred

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The New York Times

Hunting Habits of Wolves Change Ecological Balance in Yellowstone

Anne Sherwood for The New York Times
CHANGES IN THE WILD Douglas W. Smith using radio tracking equipment, above, to try to find the Leopold Wolf Pack along Blacktail Deer Creek in Yellowstone in September.
YELLOWSTONE NATIONAL PARK, Wyo. - Hiking along the small, purling Blacktail Deer Creek, Douglas W. Smith, a wolf biologist, makes his way through a lush curtain of willows.
Forum: Wildlife
Joel Sartore/National Geographic
A portrait of the Yellowstone gray wolf.
Nearly absent for decades, willows have roared back to life in Yellowstone, and the reason, Mr. Smith believes, is that 10 years after wolves were introduced to Yellowstone, the park is full of them, dispersed across 13 packs.
He says the wolves have changed the park's ecology in many ways; for one, they have scared the elk to high ground and away from browsing on every willow shoot by rivers and streams.
"Wolves have caused a trophic cascade," he said.
"Wolves are at the top of it all here. They change the conditions for everyone else, including willows."
The last 10 years in Yellowstone have re-written the book on wolf biology. Wildlife biologists and ecologists are stunned by the changes they have seen.
It is a rare chance to understand in detail how the effects of an "apex predator" ripple through an ecosystem. Much of what has taken place is recounted in the recently released book "Decade of the Wolf: Returning the Wild to Yellowstone," by Mr. Smith and Gary Ferguson. (Mr. Smith will discuss the effects at 7 tonight in the Linder Theater at the American Museum of Natural History. Admission is $15.)
In 1995, 14 wolves from Canada were brought into the park by truck and sleigh in the dead of winter, held in a cage for 10 weeks and released. Seventeen were added in 1996. Now, about 130 wolves in 13 packs roam the park.
Yellowstone, says Mr. Smith, is full.
Over the next 10 years, elk numbers dropped considerably. One of the world's largest elk herds, which feeds on rich grasses on the northern range of the park, dropped from 19,000 in 1994 to about 11,000. Wolf reintroduction has been cited as the culprit by hunters, but Mr. Smith says the cause is more complex.
Data recently released after three years of study by the Park Service, the United States Geological Survey and the University of Minnesota found that 53 percent of elk deaths were caused by grizzly bears that eat calves. Just 13 percent were linked to wolves and 11 percent to coyotes. Drought also playing a role. The study is continuing.
Scientists do say that wolf predation has been significant enough to redistribute the elk. That has in turn affected vegetation and a variety of wildlife.
The elk had not seen wolves since the 1920's when they disappeared from the park. Over the last 10 years, as they have been hunted by wolf packs, they have grown more vigilant.
They move more than they used to, and spend most of their time in places that afford a 360-degree view, said Mr. Smith. They do not spend time in places where they do not feel secure - near a rise or a bluff, places that could conceal wolves.
In those places willow thickets, and cottonwoods have bounced back. Aspen stands are also being rejuvenated. Until recently the only cottonwood trees in the park were 70 to 100 years old. Now large numbers of saplings are sprouting.
William Ripple, a professor of botany at Oregon State University, calls the process the "ecology of fear," which has allowed the vegetation to thrive as a result of behavioral changes in the newly skittish and peripatetic elk.
Though the changes now are on a fairly small scale, the effects of the wolves will spread, and in 30 years, according to Mr. Smith, Yellowstone will look very different.
Not everyone is convinced. "Wolves have a role to play," said Robert Crabtree, a canid biologist who has researched wolves and coyotes in the park since the late 1980's. "But the research has ignored climate change and flooding, which have also had an effect on vegetation. Their work isn't wrong, but it's incomplete."


Read More Here
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Minnesota's wolves needed for ecological balance

  • Article by: MAUREEN HACKETT
  • Updated: September 8, 2013 - 9:27 PM
A recreational hunt doesn’t follow the DNR’s stated management plans.
The recent article, “Despite wins, Minnesota’s endangered species list up by 180” (Aug. 20, 2013) quotes the Department of Natural Resources’ (DNR) endangered species coordinator as stating, “We’ve got to learn how to manage species on a larger scale.”
The state’s list of species that have gone extinct and of those that are endangered and threatening to go extinct has grown tremendously.
One of the first steps in the large-scale management referred to by the DNR is to keep in place the vital assets already provided by nature. This is particularly relevant to the Minnesota wolf population.
A Romanian proverb says, “Where wolves roam, forests grow.” Having wolves on our landscapes and ecologically active is vital to maintaining the natural balance for all wildlife.
There is ample science and thinking that supports this management strategy, and innovative new ways to reduce wolf conflicts with livestock, including nonlethal methods (only 2 percent of the Minnesota farms in wolf country have experienced wolf problems with livestock).
As far back as the 1920s and ’30s, University of Wisconsin scientist, ecologist, forester and environmentalist Aldo Leopold established visionary wildlife management theories that rightfully viewed wildlife issues within the greater ecological system of nature.
In 1949, he proposed that a natural predator such as the wolf has a major residual impact on plants; river and stream bank erosion; fish and fowl; water quality; and on other animals. In other words, the wolf is a keystone species.
Leopold’s trophic cascade concept articulated emphatically that killing a predator wolf carries serious implications for the rest of the ecosystem. Later, that concept was endorsed by former Secretary of the Interior Bruce Babbitt.
The natural benefits of wolves to our complex landscapes is still not fully understood. What is known is that:
• The presence of wolves helps plants and tree growth by affecting the browsing behavior of deer, especially along stream and river banks.

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Bloomberg

Murder of Yellowstone Wolves Threatens Area Renaissance


Photographer: Marc Cooke/Wolves of the Rockies via Bloomberg
Two wolves passing through Lamar Valley at Yellowstone National Park. According to Marc Cooke, president of Wolves in... Read More

Sep 2, 2013 11:01 PM CT
The air in Yellowstone National Park is chilly at the crack of dawn, even in August. If you want to see a wolf, you get up early and shiver.
“It’s more difficult right now to spot a wolf,” says Marc Cooke, president of Wolves of the Rockies. He means both the time of year -- wolves are less active in summer -- and the recent decline in wolf numbers, which he attributes to “the devastating impact from the needless trapping and hunting season.”
At last count there were 95 wolves in the park, traveling in 11 packs. A few years ago there were almost twice as many. Part of the decline is due to the natural ebb and flow of ecological systems, but hunters can legally shoot wolves when they stray outside the park into Wyoming, Montana or Idaho, even if they’re wearing radio collars.
Just last week, a collar-wearing female wolf that had killed a chicken was shot by a resident of Jardine, Montana.
As tenuous as the population is, the U.S. Fish and Wildlife Service has proposed to delist the species, which is currently designated as “endangered” or “threatened” in most of the lower 48 states. The wolf would still be protected in Yellowstone, but would be at the mercy of bloodthirsty types just outside the park when the hunting season opens in September.
After a couple days, I finally catch the briefest glimpse of a pair of black wolves, loping over a rise and out of sight in the park’s stunning Lamar Valley. Though I’m looking through a spotting scope and the wolves are more than a mile off, the scene takes my breath away.

Wolf Renaissance

As an apex predator, wolves are essential to an ecosystem’s health. Soon after reintroduction to Yellowstone in 1995, wolves helped cull the overpopulated elk herds. This led to a rejuvenation of verdant ground cover that the elk had been mowing down, which in turn attracted animals that rely on low foliage for cover and food.
Yellowstone wolves are undoubtedly responsible for a renaissance of songbird and beaver populations and a lot more.
“You could argue that they’ve affected everything through the system,” says wolf biologist Doug Smith, Yellowstone’s longtime wolf project leader. “Wolves have been good for fish, reptiles, amphibians and invertebrates.”
Wolves are even good for another top predator, the grizzly bear, which feeds on berries that bounced back with the reappearance of wolves.
“We’ve got the most predators, or carnivores, in Yellowstone in the park’s entire history,” says Smith. “Arguably, Yellowstone is as pristine as it’s been in its entire history.”

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NPR

Wolves At The Door

Can two top predators coexist in the American West?


This is a story about wolves and people

This is a story about wolves and people

It’s a story about what we have in common — we’re social, adaptable and fiercely territorial. It's also a story about whether we can get along.
It's also a story about whether we can get along
People have been fascinated with wolves for millennia. They show up in our folklore and in our fairy tales. Today, in much of the American West, gray wolves also show up in our politics. I know this because I grew up in Montana, where wolves can be as important and divisive a topic as gun control or health care.
A few decades ago, wolves had been hunted, trapped and poisoned — down to a population of about 50 in the contiguous United States. Then, in the mid-1990s, the federal government decided to bring them back, introducing 66 Canadian gray wolves into Idaho and Yellowstone National Park. They became “the environmental movement poster animal,” says Doug Smith, head of the Yellowstone Wolf Project, a group that monitors and studies wolves in Yellowstone National Park.

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