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Tuesday, August 16, 2011

Biodiversity: Top predators critical to ecoystem health

The loss of apex consumers is arguably humankind’s most pervasive influence on the natural world,” and has disrupted ecosystems across the researchers concluded in their study, published last week in the journal Science."  This quote is taken from an article entitled, "Biodiversity: Top predators critical to ecoystem health which I found at Summit County Citizen's Voice website. To read the entire article pleas click on the highlighted words in the previous sentensce.
This new study and its conclusions certainly are troubling news!  As stated in the article:
"Plummeting numbers of apex consumers are most pronounced among the big predators."..."There also are dramatic declines in populations of many large herbivores"...
If apex predators are removed from an ecosystem, many very bad consequences can occur, as pointed out in the article.However, other scientists consider another consequence to be even more severe from such a situation,that being, "a huge increase in smaller "mesopredators" that are causing major economic and ecological disruptions." "Mesopredators are middle trophic level predators such as raccoons, skunks, snakes, cownose rays, and small sharks."
 This consequence was first pointed out in the article "Loss of Top Predators Causing Ecosystems to Collapse" which was published at the website and which can be accessed by clicking on the following link: 
As stated in the article:
"Primary or apex predators can actually benefit prey populations by suppressing smaller predators, and failure to consider this mechanism has triggered collapses of entire ecosystems."
So once again our species has been shown to adversely affect the other life on this planet and the ecosystems within which this life exists! Humans need to stop killing apex predators, because of fear, ignorance or selfishness, if all of the  in the ecosystems on our planet are to avoid collapse! 
Here are some other articles which are directly related to these new scientific findings:

1. Effects of Shark Decline:

2.Why Healthy Oceans need sharks:  (You need a program that can read PDF Files to read the article).

3.The Rise of the Mesopredator:  (Again this article is in PDF format).

Source of definition of mesopredators:

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Thoughts worth thinking about

"Our subconscious minds have no sense of humor, play no jokes and cannot tell the difference between reality and an imagined thought or image. What we continually think about eventually will manifest in our lives."-Sidney Madwed

Laws alone can not secure freedom of expression; in order that every woman and man present their views without penalty, there must be spirit of tolerance in the entire population.- Albert Einstein Too often we underestimate the power of a touch, a smile, a kind word, a listening ear, an honest compliment, or the smallest act of caring, all of which have the potential to turn a life around. - Leo Buscaglia

A person's true wealth is the good he or she does in the world. - Mohammed

Our task must be to free ourselves... by widening our circle of compassion to embrace all living creatures and the whole of nature and its beauty. -Albert Einstein

The best way to find yourself, is to lose yourself in the service of others. - Ghandi

The unselfish effort to bring cheer to others will be the beginning of a happier life for ourselves. - Helen Keller

Aim for success, not perfection. Never give up your right to be wrong, because then you will lose the ability to learn new things and move forward with your life. Remember that fear always lurks behind perfectionism. Confronting your fears and allowing yourself the right to be human can, paradoxically, make yourself a happier and more productive person. - Dr. David M. Burns

Life is as dear to a mute creature as it is to man. Just as one wants happiness and fears pain, just as one wants to live and not die, so do other creatures. -His Holiness The Dalai Lama

Mankind's true moral test, its fundamental test (which lies deeply buried from view), consists of its attitude towards those who are at its mercy: animals. And in this respect mankind has suffered a fundamental debacle, a debacle so fundamental that all others stem from it. -

Milan Kundera, The Unbearable Lightness of Being

The worst sin towards our fellow creatures is not to hate them, but to be indifferent to them. That's the essence of inhumanity. -George Bernard Shaw

Ego's trick is to make us lose sight of our interdependence. That kind of ego-thought gives us a perfect justification to look out only for ourselves. But that is far from the truth. In reality we all depend on each other and we have to help each other. The husband has to help his wife, the wife has to help the husband, the mother has to help her children, and the children are supposed to help the parents too, whether they want to or not.-Gehlek Rinpoche Source: "The Best Buddhist Writing 2005 pg. 165

The hostile attitude of conquering nature ignores the basic interdependence of all things and events---that the world beyond the skin is actually an extension of our own bodies---and will end in destroying the very environment from which we emerge and upon which our whole life depends.