Fallen leaves and unpalatable plants as alternative foods for sika deer under food limitation
Fallen leaves and unpalatable plants as alternative foods for sika deer under food limitation
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落叶和难吃的植物作为食物限制下梅花鹿的替代食物
DOI：
10.1046/j.1440-1703.2001.00391.x
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发表时间：
2001
影响因子：
2
通讯作者：
K. Kaji
中科院分区：
文献类型：
--
作者：
Hiroshi Takahashi;K. Kaji
在北海道中之岛对限食条件下西卡鹿的采食行为和瘤胃内容物进行了研究。在种群增长阶段，鹿主要以树皮、树枝、落叶和矮竹为食。在冬天。在人口崩溃后，鹿开始以落叶树的落叶为食，并在全年继续这样做。他们还吃了不好吃的植物红豆杉。nana nanad.，千里光、白前作为冬季食物，过去一直不被鹿接触，因此随着可用的矮竹数量的减少，它们的分布范围也相应扩大。这些事实表明，西卡鹿急剧改变他们的食物和开发替代食物的条件下，食物限制。
Feeding behavior and rumen contents of sika deer (Cervus nippon Temminck) under food limitation were studied on Nakanoshima Island, Hokkaido. During the phase of population growth, the deer subsisted on tree bark and twigs, deciduous leaves and dwarf bamboos (Sasa spp.) in the winter. After a crash in population, the deer began feeding on the fallen leaves of deciduous trees and continued to do so throughout the year. They also ate unpalatable plants Cephalotaxus harringtonia var. nana Rehd., Senecio cannabifolius Less. and Cynanchum caudatum Maxim. as winter foods, which used to remain untouched by deer, and had accordingly expanded their distributions, following a decrease in the amount of dwarf bamboos available. These facts suggest that sika deer drastically shift their foods and exploit alternative foods under conditions of food limitation.