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Seed hoarding distance of Pinus koreansis by Sciurus vulgaris in Liangshui Nature Reserve

, : Seed hoarding distance of Pinus koreansis by Sciurus vulgaris in Liangshui Nature Reserve. Chinese Journal of Zoology 43.3

We used field observation and manipulated experiment approach to study the hoarding distance of Korean Pine (Pinus koreansis) seeds removed by squirrels (Sciurus vulgaris) in October, 2006. Total of 110 cones were marked by label and placed in 6 spots, among those cones 8 were eaten and 102 were removed hours and hoarded within 10. Total of 47 removed and hoarded corns were found within a radius of 300 m from the point placed. The results indicated that the location of cone placed had influence on the duration being found, those cones placed in the sites with a high human disturbance (near tourist path) were removed later. New cones (in 2006) and old cones (in 2005) were all predated and hoarded. Squirrels prefer to remove new cones and all the cones were hoarded, but they also removed hoarded old cones partly eaten by Eutamias sibiricus.


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