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You are here: Home / Archives for decline

decline

The Threat Of Bushmeat Hunting

November 22, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/11/EW-11-22-16-The-Threat-of-Bushmeat-Hunting.mp3

A recent study has identified the steep decline of more than 300 species of mammals as a result of unregulated or illegal hunting.  Humans are consuming many of the world’s wild mammals to the point of extinction.

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Disappearing Arctic Ice

October 25, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/10/EW-10-25-16-Disappearing-Arctic-Ice.mp3

The top of the world is turning from white to blue in the summer.  The ice that has long covered the north polar seas is melting away.

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Wilderness Lost

October 10, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/10/EW-10-10-16-Wilderness-Lost.mp3

Wilderness areas are strongholds for biodiversity.  They buffer and regulate local climates, and they support many of the world’s most politically and economically marginalized communities.  While there is a great deal of attention being paid to the loss of species around the world, there is relatively little focus on the loss of entire ecosystems.  Simply put, wilderness is on the decline, and it has been ever since human civilization began its inexorable expansion.

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Dehorning Rhinos

September 30, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/09/EW-09-30-16-Dehorning-Rhinos.mp3

At the beginning of the 20th century, there were about 500,000 rhinos across Africa and Asia.  By 1970, the number was down to 70,000.  Today, there are less than 30,000 rhinos in the wild.  The number of black rhinos dropped to as low as 2,300 in 1993.  Aggressive conservation efforts have brought their numbers up to over 5,000 today.

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Whale Sharks

September 9, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/08/EW-09-09-16-Whale-Sharks.mp3

Whale sharks are the largest fish in the sea.  They can grow more than 40 feet in length, weigh up to 47,000 lbs, and have a lifespan of about 70 years.  They can be found cruising in the open waters of tropical oceans.  But despite being enormous, whale sharks are no threat to humans.  The docile beasts, which feed almost exclusively on plankton, have often been referred to as “gentle giants.”

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Sharks In Hot Water

August 25, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/08/EW-08-25-16-Sharks-in-Hot-Water.mp3

The majestic great white shark has been around for a very long time.  Its evolutionary origin dates back 14 to 16 million years.  And while great whites still enjoy decent populations off the coasts of Canada, Australia, and the United States, the same can’t be said for South Africa’s great whites. 

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Declining Insect Populations

August 5, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/08/EW-08-05-16-Declining-Insect-Populations.mp3

There has been lots of discussion about the decline in bee populations and its dire consequences for agriculture.  We have also talked about the efforts to save the monarch butterfly, whose numbers have been dropping dramatically over the years.  But the rest of the insect world does not get much attention.  For the most part, we think of insects as a nuisance or as potential pests.

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Carbon Dioxide And Bees

June 21, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/06/EW-06-21-16-Carbon-Dioxide-and-Bees.mp3

The decline of bee populations worldwide is a serious problem that threatens much of agriculture.  From 2006 to 2011, losses in managed honeybee colonies in the U.S. averaged 33 percent a year.  In recent years, beekeepers have had to replace 50 percent of their colonies each year.

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Wildflower Decline

March 7, 2016 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2016/03/EW-03-07-16-Wildfower-Decline.mp3

For about a decade now, insect pollinator populations have been in decline.  Their decline poses a significant threat to biodiversity, food production, and human health.  In fact, at least 80% of the world’s crop species require pollination, and approximately one out of every three bites of food is a direct result of the work of these pollinators.  In the United States alone, insect pollinators, such as bees, butterflies, certain wasps and flies (among many others), account for an estimated $15 billion in profits annually.    

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Declining Sugar Maples

December 23, 2015 By WAMC WEB

https://earthwiseradio.org/wp-content/uploads/2015/12/EW-12-23-15-Sugar-Maples.mp3

The sugar maple, one of the most economically and ecologically important trees in the eastern United States and Canada, is showing signs of being in decline, according to scientists at SUNY’s College of Environmental Science and Forestry and Harvard Forest.

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