Inatomi Yoshihiro, Uno Hiroyuki, Ueno Mayumi, Takafumi Hino, Osa Yuichi
Research Institute of Energy, Environment and Geology, Hokkaido Research Organization, Sapporo 060-0819, Hokkaido, Japan.
Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu 183-8509, Tokyo, Japan.
Biology (Basel). 2022 Feb 12;11(2):302. doi: 10.3390/biology11020302.
Identifying appropriate indicator species for the impact of deer on forest vegetation is crucial for forest management in deer habitats and is required to be sensitive to temporal and spatial variations in deer density. was selected as a new indicator to evaluate the response to these variations. We examined the population-level characteristics, morphological characteristics at the individual level, and grazing intensity of at temporally different deer density sites in Hokkaido, Japan. The response of to spatial variation in deer density was also examined within and between two regions in Hokkaido, Japan. Although the population-level characteristics and morphological characteristics did not significantly respond to short-term decreases in deer density, grazing intensity significantly decreased with decreasing deer density. The grazing intensity was also positively related to the spatial variation of deer density within both regions, but the estimated coefficient of the grazing intensity differed between regions. We concluded that can be a useful indicator species of the impact of deer on forest vegetation. The grazing intensity of the indicator species was sensitive to temporal and spatial variations in deer density within the region.
确定适合鹿对森林植被影响的指示物种对于鹿栖息地的森林管理至关重要，并且需要对鹿密度的时空变化敏感。 被选为评估对这些变化响应的新指标。我们研究了日本北海道不同时间鹿密度地点的 的种群水平特征、个体水平的形态特征以及啃食强度。还在日本北海道的两个区域内和区域间研究了 对鹿密度空间变化的响应。尽管种群水平特征和形态特征对鹿密度的短期下降没有显著响应，但啃食强度随鹿密度降低而显著下降。啃食强度在两个区域内也与鹿密度的空间变化呈正相关，但不同区域啃食强度的估计系数有所不同。我们得出结论， 可以作为鹿对森林植被影响的有用指示物种。指示物种的啃食强度对区域内鹿密度的时空变化敏感。
