Distribution and Migration Rhythm ofAnas platyrhynchosin Zhejiang
Analysis were made on quantitative distribution and migration rhythm ofAnas platyrhynchosin Zhejiang province by monitoring data from 2009-2014 of 56 monitoring stations. The results showed thatA. platyrhynchosoverwintered around station of Lin'an, Sanmen, Yalinsuo with migration times from October 8th to next June 23rdin Zhejiang province. It movedfrom south to north during March 27 and May 22 and from north to south during October 8 to November 18. Forecasting model for quantitative variation ofA. platyrhynchos in Zhejaing province was established by data mining.
Anas platyrhynchosmigration rhythmdata miningtime series modeling