...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecological research >Effects of deer, mice and dwarf bamboo on the emergence, survival and growth of Abies homolepis (Piceaceae) seedlings
【24h】

Effects of deer, mice and dwarf bamboo on the emergence, survival and growth of Abies homolepis (Piceaceae) seedlings

机译：鹿，小鼠和矮竹对木豆冷杉幼苗出苗，存活和生长的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the subalpine mixed forest of Mt. Odaigahara, mid-western Japan, the understory is dominated by dwarf bamboo (Sasa nipponica), which is the major forage of overly populous sika deer (Cervus nippon). In the present study, we monitored the survival and growth of Abies homolepis seedlings over 5 years to determine how they responded to the experimental removal of dwarf bamboo and to the exclusion of sika deer and mice (Apodemus argenteus and A. speciosus). Deer and dwarf bamboo reduced the survival of seedlings but had different effects on growth. The stems of seedlings were shorter in the presence of deer, indicating that taller seedlings were apt to be browsed by deer, whereas the diameters of seedlings were smaller in the presence of dwarf bamboo, mainly owing to its shading effect. The presence of mice decreased the number of seedlings germinating in a particular site, but had no effect on seedling survival after germination. There was no significant indirect effect whereby the survival of seedlings was predicted to be facilitated by the decreased biomass of bamboo because of grazing by deer. We supposed that this might be because the direct negative effect of deer was so large as to conceal the positive indirect effect.
机译：在山的亚高山混交林中。日本中西部的织田原，林下层是矮竹（Sasa nipponica），这是人口过多的梅花鹿（Cervus nippon）的主要觅食。在本研究中，我们监测了5年以上冷杉木的存活和生长，以确定它们对矮矮竹的实验去除以及梅花鹿和老鼠（Apodemus argenteus和A. speciosus）的排斥反应如何。鹿和矮竹减少了幼苗的存活，但对生长有不同的影响。鹿存在时，幼苗的茎较短，表明较高的幼苗易于被鹿浏览，而矮矮竹存在时，幼苗的直径较小，这主要是由于其遮荫作用。小鼠的存在减少了在特定位置发芽的幼苗的数量，但是对发芽后的幼苗存活没有影响。没有显着的间接影响，因为鹿放牧导致竹子生物量减少，因此可以预测幼苗的存活。我们认为这可能是因为鹿的直接负面影响如此之大以至于掩盖了正面的间接影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号