Naked Science Forum

Life Sciences => Plant Sciences, Zoology & Evolution => Topic started by: petrovitch on 22/08/2009 22:14:06

Title: What causes bee colony collapse?
Post by: petrovitch on 22/08/2009 22:14:06

Bee Colony Collapse would result from a change in the magnetic polarity of the earth.  This magnetic pulse would affect their ability to navigate home.  The bees senses have been manipulated by the magnetic resonance of the earth.    Their magnetic compass is reversed, their sense of direction is screwed-up, and they fly home in the wrong direction.  Experiments have been done on bats to demonstrate this effect.  Local disruptions in the magnetic field would cause BCC.  Weakening of magnetic fields have also caused whales to be beached.

Title: Re: What causes bee colony collapse?
Post by: JimBob on 24/08/2009 01:14:23

Perhaps you should phrase this as a question - but it isn't really going to affect bees or whales. The magnetic field of the earth has never "just collapsed." From what we know of the observed effects of the earth's magnetic fields there will always be some sort of magnetic field. Bees live too short of a time to notice the changes as the occur slowly over years. The rate of change is also too small to cause whale to beach. From what I am aware of, the causes are more than likely the confusing sounds now generated in the oceans of the world. Water allows sound, especially non-human frequencies, to travel much further than sounds would in air. Sound is more disruptive than minute magnetic variations to whales, as demonstrated by US Navy studies in southern California waters. 

Title: Re: What causes bee colony collapse?
Post by: wanhafizi on 24/08/2009 05:43:25

Does that studies explain the incidents when dolphins/whales/etc that wanted to cross over beaches?

Could you tell us more about this study?

tq

Title: Re: What causes bee colony collapse?
Post by: JimBob on 25/08/2009 02:58:51

I have only read the synopsis of these on web site devoted to saving whales. I do not know where these are posted, probably in journals about cetaceans and oceanographic journals and other professional journals.

Title: Re: What causes bee colony collapse?
Post by: Don_1 on 25/08/2009 08:21:02

Quote from: petrovitch on 22/08/2009 22:14:06

Bee Colony Collapse would result from a change in the magnetic polarity of the earth. 

I think you should have used the word 'could' here.

While geomagnetic fields may be a factor in colony collapse syndrome, it is by no means certain. There are many other factors which need to be considered, such as parasites, viral attack, hornets, transportation and single crop pollination.

This is very serious problem, not just for bees, since many of our crops are in danger without these most efficient and productive pollinators.