文档介绍:
北松鼠贮藏红松种子的行为特征#
史飞,戎可**
(东北林业大学野生动物资源学院)
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摘要:综合运用无线电引导下的目标动物跟踪观察方法、定位扫描取样观察方法、固定样线松鼠种群及其
行为调查方法和固定样线法红松塔核调查方法对松鼠贮食行为过程及其对红松松塔的选择性进行了研究。
结果表明,松鼠贮食红松种子的贮食期自 9 月开始至 11 月结束,长达 8-10 周,与红松松塔的成熟相当。
整个松鼠的贮食过程可以分为搜寻、松塔处理、塔核拖带与种子贮藏几个部分。松鼠只拖带剥云鳞片的塔
核进行贮藏,每次贮藏都将塔核放在大树的树基部,从上取下 8 粒左右种子建立 3-4 个贮点,如此往复直
至将整个塔核上的种子贮藏完毕,剩余的空塔核被丢弃在最后一次放置的大树树基附近。松鼠约在冬季家
域外贮藏了 20%的红松种子,这部分松籽为红松的天然更新提供了种源。
关键词:行为生态学;贮食行为;北松鼠;红松
中图分类号:Q
Hoarding behavior of Eurasian red squirrels(Sciurus
vulgaris) on Korean pine seeds
Shi Fei, Rong Ke
(College of Wildlife Resources, Northeast Forest University)
Abstract: The hoarding behavior of Eurasian red squirrels were studied according to series of methods
and techniques, ., located observation in certain study area, radio-tracing target animals methods,
scanning samples in fixed transects, regular investigation on discarded cone cores in fixed transects.
The results indicated that the hoarding period of Eurasian red squirrels started in September and ended
in November, lasting for 8-10 weeks. The beginning of hoarding was influenced by the ripeness of
pinecones. The process of squirrel's hoarding can be sectioned into searching pinecones, processing
pinecones, transporting a pinecone and hoarding seeds. Eurasian red squirrels peeled off scales of
pinecones whereafter held a pinecone in mouth and transported it