Archive for Birds

Birds maintain rare plant species, study finds

Posted in 2016, animals with tags , , on November 11, 2016 by theboldcorsicanflame

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Fruit-eating birds play an important role in maintaining rare plant species, say researchers from Penn State and Universidad Nacional del Comahue, Argentina. Credit: Tomás Carlo / Penn State

Outside of human influences, why do rare plant species persist instead of dwindling away to extinction?

It’s a question that has plagued ecologists for centuries. Now, for the first time, scientists at Penn State and Universidad Nacional del Comahue, Argentina, demonstrate that fruit-eating birds play an important role in maintaining rare plant species.

The Answer on

http://m.phys.org/news/2016-11-birds-rare-species.html

Worldwide populations of mammals, birds, fish, amphibians & reptiles have plunged by almost 60 percent since 1970

Posted in 2016, animals with tags , , , , on November 3, 2016 by theboldcorsicanflame

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OSLO (Reuters) – Worldwide populations of mammals, birds, fish, amphibians and reptiles have plunged by almost 60 percent since 1970 as human activities overwhelm the environment, the WWF conservation group said on Thursday.

An index compiled with data from the Zoological Society of London (ZSL) to measure the abundance of biodiversity was down 58 percent from 1970 to 2012 and would fall 67 percent by 2020 on current trends, the WWF said in a report.

The decline is yet another sign that people have become the driving force for change on Earth, ushering in the epoch of the Anthropocene, a term derived from “anthropos”, the Greek for “human” and “-cene” denoting a geological period.

To be continued on

https://ca.news.yahoo.com/wildlife-populations-plunge-almost-60-percent-since-1970-000904325.html

We are now in the 6th massive extinction

https://theboldcorsicanflame.wordpress.com/2014/05/30/we-are-on-the-brink-of-a-sixth-great-extinction-as-plants-and-animals-die-out-1000-times-faster-than-before-humans-arrived/

EARTH OVERSHOOT DAY 2016, EARLIER THAN EVER

Posted in 2016 with tags , , , , , , , , , , on August 4, 2016 by theboldcorsicanflame

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On August 8th 2016, humanity will have used up nature’s budget for the entire year according to the Global Footprint Network, an international sustainability think tank led by Club of Rome memberMathis Wackernagel.

Since 1970, Earth Overshoot Day has been changing date with a general tendency to come earlier in the year, this year will be a record though.

But there is some good news too and plenty of opportunities to act for reducing humanity’s ecological footprint.

#Pledgefortheplanet and read more about overshoot day and what you can do about it here:

http://www.overshootday.org/

 

All Of A Sudden, Fish Are Dying By The MILLIONS All Over The Planet

Posted in 2016, animals with tags , , , , , , on July 28, 2016 by theboldcorsicanflame

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Why are millions upon millions of dead sea creatures suddenly washing up on beaches all over the world?  It is certainly not unusual for fish and other inhabitants of our oceans to die.  This happens all the time.

But over the past month we have seen a series of extremely alarming mass death incidents all over the planet.  As you will see below, many of these mass death incidents have involved more than 30 tons of fish.

In places such as Chile and Vietnam, it has already gotten to the level where it has started to become a major national crisis.  People see their coastlines absolutely buried in dead sea creatures, and they are starting to freak out.

For example, just check out what is going on in Chile right now.  The following comes from a Smithsonian Magazine article entitled “Why Are Chilean Beaches Covered With Dead Animals?“…

TO BE CONTINUED ON

All Of A Sudden, Fish Are Dying By The MILLIONS All Over The Planet

 

25 Million Birds Are Illegally Killed in the Mediterranean Every Year

Posted in 2016, animals with tags , , on March 13, 2016 by theboldcorsicanflame

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A European turtledove, whose numbers are plummeting across the Mediterranean. (Photo: Valery Hache/AFP/Getty Images)

Researchers find that the animals are being shot and trapped for food and the pet trade, with the majority of the deaths occurring at just 20 sites.

A new study finds that an estimated 25 million migrating birds are killed as they fly over Mediterranean countries each year. The deaths—by gun, net, or glue-covered traps—include several threatened species. Most of the birds end up being eaten as delicacies. Some are shot for sport, while others are captured alive and sold in the caged-bird trade.

To Be Continued on

http://www.takepart.com/article/2016/03/10/25-million-birds-are-illegally-killed-mediterranean-every-year

New research shows that the very same physical mechanisms are at play when a Bird sings and a Human speak

Posted in 2015, animals with tags , , , on December 1, 2015 by theboldcorsicanflame

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 When birds and humans sing it sounds completely different, but now new research reported in the journalNature Communications shows that the very same physical mechanisms are at play when a bird sings and a human speaks.

Birds and humans look different, sound different and evolved completely different organs for voice production. But now new research published in Nature Communications reveals that humans and birds use the exact same physical mechanism to make their vocal cords move and thus produce sound.

“Science has known for over 60 years that this mechanism – called the myoelastic-aerodynamic theory, or in short the MEAD mechanism- drives speech and singing in humans. We have now shown that birds use the exact same mechanism to make vocalizations. MEAD might even turn out to be a widespread mechanism in all land-dwelling vertebrates”, says lead author of the paper, Associate Professor Dr. Coen Elemans, Department of Biology, University of Southern Denmark. Co-authors of the paper are from Emory University, Max Planck Institute for Ornithology and Palacky University.

Over the last year Dr. Elemans and his colleagues studied six different species of bird from five avian groups. The smallest species, the zebra finch, weighs just 15 grams, and the largest one, the ostrich, weighs in at 200 kg. All studied birds were revealed to use the MEAD mechanism, just as humans do.

In the human voice box, or larynx, air from the lungs is pushed past the vocal cords, which then start moving back and forth sideways like a flag fluttering in the wind. With each oscillation the larynx closes and opens, making the airflow stop and start, which creates sound pulses. “Such vocal fold oscillations occur from about 100 times/sec in normal speech to one of the highest possible notes sung in opera at about 1400 times/sec, a F6 in Mozart’s “Die Zauberflöte”, adds voice expert and co-author Dr. Jan Švec of Palacky University in the Czech Republic.
To be Continued on

http://www.sott.net/article/307445-Birds-and-humans-Same-physical-mechanism-for-singing-talking

 

That’s what it looks like when Birds get prepared!

Posted in 2015, animals with tags , , , on May 8, 2015 by theboldcorsicanflame

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