[新聞] Massive floods drove millions of spiders into the trees to spin their webs.

netaccess

Another unusualy story i pick up from National Geographic...

Trees rising above the floodwaters became safe havens for web-spinning spiders in Sindh, Pakistan, as seen in December 2010.


A spider web enshrouds a tree in Sindh, Pakistan, in a December 2010 photograph.
The  unusual cocoons were a mixed blessing:
The bad point is that the huge webs ultimately killed  many of the trees they covered, perhaps by reducing the amount of  sunlight reaching their leaves.
The  area is incredibly hot in summer, and there is very little natural  foliage cover for people to use as shade to begin with. Without the trees lining roads and fields, there will be little refuge  from the summer sun.




The good point is tha the webs also seemed to help trap more mosquitoes in the region, thereby reducing the risk of malaria. Normally  after a flood, the remaining stagnant water provides more opportunities  for mosquitoes to breed. But people in Sindh reported far fewer  mosquitoes than expected following the recent crisis.

leffie

the tree will die soon in this condition. at that time, the spiders will lose their shelter. it's vicious cycle