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Food-hoarding behaviour of David's rock squirrel Sciurotamias davidianus(In English)

机译:大卫岩松鼠Sciurotamias davidianus的食物ho积行为(英文)

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Food storage is an important adaptation of some animal species to the temporal variation or unpredictable food supplies. David’s rock squirrel Sciurotamias davidianus occurs in mountainous and hilly areas of north China . Food-hoarding behaviour of this species was unknown. We set up four semi-natural enclosures in the Donglingshan Mountain area near Beijing , and investigate the hoarding strategy of 12 David’s rock squirrels and their response to perceived pilferage on seeds of walnuts Juglans regia and wild apricot Prunus armeniaca . The results show that: 1) David’s rock squirrels hoarded food items in both larder and scatter patterns but more items were scatter hoarded; 2) w hen confronted by perceived pilferage on hoarded food, David’s rock squirrels increased both larder hoarding and scattered hoarding; 3) n one of the seeds of wild apricot and walnut were eaten at the feeder. David’s rock squirrels consumed more seeds of wild apricot than that of walnuts outside nest boxes; 4) David’s rock squirrels only scatter hoarded walnuts; and 5) Seeds of walnuts were transported greater distances than that of wild apricot. The result suggests that David’s rock squirrels might play different roles in natural regeneration of walnuts and wild apricots [ A cta Zoologica Sinica 51(3): 376 –382, 2005] .
机译:食物的储存是一些动物物种对时间变化或不可预测的食物供应的重要适应。戴维(David)的松鼠(Scuutrotamias davidianus)发生在中国北方的山区和丘陵地区。该物种的食物ho积行为未知。我们在北京附近的东灵山地区建立了四个半自然保护区,并研究了12只David松鼠的ho积策略以及它们对核桃,核桃和野生杏子种子对感知到的被盗行为的反应。结果表明:1)大卫的松鼠ed积了食物的食物,呈阶梯状和散落状,但散落的食物更多。 2)当大卫在s积食物上遭到偷窃时,既增加了积又增加了零散ho积; 3)在喂食器中吃了一种野生杏和核桃种子。大卫的松鼠消耗的野生杏子种子多于巢箱外面的核桃。 4)大卫的松鼠只散布ho积的核桃; 5)核桃种子的运输距离比野生杏子大。结果表明,大卫的松鼠在核桃和野生杏的自然再生中可能发挥不同的作用[A cta Zoologica Sinica 51(3):376 –382,2005]。

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