摘要
在河南省济源市王屋山地区,研究了次生林、灌丛、退耕地三个生境中啮齿动物对栓皮栎坚果的取食、扩散与贮藏情况。结果表明:1)在研究地区,取食栓皮栎坚果的啮齿动物主要有大林姬鼠、社鼠和黑线姬鼠;2)在次生林中,啮齿动物对坚果的搬运速率慢于在灌丛和退耕地生境中的搬运速率;3)次生林生境中,贮藏坚果占被扩散坚果的比例高于灌丛和退耕地,而灌丛生境中被取食坚果占被扩散种子的比例高于退耕地和次生林;4)栓皮栎坚果的中位存留时间在三个生境间有显著性差异。研究结果提示,在人工造林时,可通过对栓皮栎坚果进行埋藏处理,以提高种子萌发率。
We studied the fate of tagged acorns of cork oak （ Quercus variabilis ） , which were released in three different types of habitats, secondary forest, shrub, and rehabilitated land, in Wangwu Mt. area in Jiyuan, Henan, China. In mid- September 2007, 15, 10, and 8 plots were set in secondary forest, shrub, and rehabilitated land, respectively. Forty tintagged acorns were placed in each plot. Checking and recording on the released acorns was, at two-day intervals, carried out till the end of field investigation, namely, 62 days after the acorns were released. SPSS for Windows （version 13. 0）was used for data analysis and statistics. The results of this study showed that ： 1 ） Apodemus peninsulae, Niviventor confucianus, A. agrarius, and Sciurotamias davidianus are the principle rodent species that predate acorns of cork oak ; 2 ） The acorn-removal rate in forest habitat was lower than that in shrub and rehabilitated land, while seed the consumption rate by rodents in shrub and rehabilitated land was higher than that in secondary forest ; 3 ） The median survival time was significantly different among three habitats ; 4 ） The average dispersal distances were not significantly different among these habitats, while the differences between eaten and hoarded acorns were significant in each type of habitat. Our results indicated that habitat is one of the key biotic factors influencing seed survival and subsequent seedling establishment.
出处
《兽类学报》
CAS
CSCD
北大核心
2009年第2期160-166,共7页
Acta Theriologica Sinica
基金
国家重点基础研究发展计划(2007CB109106)
郑州大学引进人才科研基金
关键词
栓皮栎
啮齿动物
生境
贮藏
扩散
Cork oak （ Quercus variabilis ）
Dispersal
Habitat
Hoarding
Rodents
