Seed dispersal by food hoarding animals plays an important role in the successful seed-to-seedling transition and tree regeneration of many tree species bearing large-sized seeds.Small rodents,e.g.,wood mice,chipmunks,and squirrels have been recognized as crucial seed dispersers in various ecosystems although they consume a large proportion of seeds.Studies have shown that seed traits(e.g.,seed size,coat thickness,and nutrition)play important roles in seed dispersal.Moreover,the probability of seed survival...
【基金】
国家自然科学基金(31172101);
教育部新世纪优秀人才支持计划(NCET-12-0693)
【更新日期】
2015-10-20
【分类号】
Q958.1
【正文快照】
种子特征,如大小、营养成分、种皮厚度等都会对啮齿动物的贮食行为产生影响[1-2]。目前,国内外关于啮齿动物对不同大小种子的选择和扩散已有较多的研究[3,4]。肖治术等对五种壳斗科种子的野外研究表明,种子的扩散距离随种子大小的增加而增加[5]。Brewer关于林棘鼠(Heteromys de