鼠类对水青冈种子的贮藏行为研究

Study on Storage Behavior of Fagus longipetiolata Seeds Taken by Rodents

在雷公山国家级自然保护区,选择灌丛生境人工释放水青冈种子,对种子在释放处被鼠类就地取食、存留动态、种子被搬运和贮藏的距离、位置、状态、微生境等进行分析。结果表明,取食水青冈种子的鼠类是针毛鼠、社鼠和黄胸鼠;水青冈种子大多数被搬运至21 m内,在9 m内最为集中（占74.1%）;水青冈种子的中位存留时间为6.82 d;搬运后有53.99%的水青冈种子被埋藏,有15.04%的种子被取食;鼠类趋向于把种子搬运到灌丛下方或灌丛边缘进行埋藏。水青冈种子在贮藏点的数量为1-4粒,多数为1粒。

Fagus longipetiolata seeds labeled with small pieces of coded tin-tags were released in a shrub habitat in Leigong Mountain National Nature Reserve of Guizhou province to analyze its condition of on-the-spot intake eaten by rodents,seeds persistence dynamic,the distance,location,status and microhabitat of transported and stored seeds.The results showed that Niviventer fulvescens,Niviventer confucianus and Rattus tanezumi are rodent species eating Fagus longipetiolata seeds,most Fagus longipetiolata seeds were transported within 21m and 74.1% Fagus longipetiolata seeds were transported within 9m,the persistence time of Fagus longipetiolata seeds was 6.82d,15.04% transported Fagus longipetiolata seeds were eaten by rodents and 53.99% transported Fagus longipetiolata seeds were buried in microhabitats under shrubs and near shrub edges with 1～4 seeds,most of the time with one.