Distribution
Mosquitoes are very widespread, occurring in all regions of the world except for Antarctica. In warm and humid tropical regions, they are active for the entire year, but in temperate regions they hibernate over winter. Arctic mosquitoes may be active for only a few weeks as pools of water form on top of the permafrost. During that time, though, they exist in huge numbers and can take up to 300ml of blood per day from each animal in a caribou herd.
Eggs from strains in the temperate zones are more tolerant to the cold than ones from warmer regions. They can even tolerate snow and subzero temperatures. In addition, adults can survive throughout winter in suitable microhabitats.
Read more about this topic: Macchar
Famous quotes containing the word distribution:
“The question for the country now is how to secure a more equal distribution of property among the people. There can be no republican institutions with vast masses of property permanently in a few hands, and large masses of voters without property.... Let no man get by inheritance, or by will, more than will produce at four per cent interest an income ... of fifteen thousand dollars] per year, or an estate of five hundred thousand dollars.”
—Rutherford Birchard Hayes (1822–1893)
“My topic for Army reunions ... this summer: How to prepare for war in time of peace. Not by fortifications, by navies, or by standing armies. But by policies which will add to the happiness and the comfort of all our people and which will tend to the distribution of intelligence [and] wealth equally among all. Our strength is a contented and intelligent community.”
—Rutherford Birchard Hayes (1822–1893)
“Classical and romantic: private language of a family quarrel, a dead dispute over the distribution of emphasis between man and nature.”
—Cyril Connolly (1903–1974)