Deer-proof fence prevents regeneration of Picea jezoensis var. hondoensis through seed predation by increased woodmouse populations
Deer-proof fence prevents regeneration of Picea jezoensis var. hondoensis through seed predation by increased woodmouse populations
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DOI：
10.1007/s10310-007-0056-2
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发表时间：
2008-04
影响因子：
1.5
通讯作者：
E. Shibata;M. Saito;Mie Tanaka
中科院分区：
文献类型：
--
作者：
E. Shibata;M. Saito;Mie Tanaka
在日本中部的大岱原山，通过评价防鹿围栏内外的小白鼠对种子的捕食作用，研究了西卡（Cervus nippon）放牧对云杉（Picea jezoensisvar. hondoensis）更新的间接影响。在建造了防鹿围栏之后，覆盖森林地面并是鹿的主要饲料的日本矮竹，由于没有鹿放牧，围栏内比围栏外长得更厚。两种林鼠（Apodemus speciosusandA.在围栏内发现了银纹鱼，可能是因为厚的。nipponicgrowth提供了更好的掩护。在栅栏里面，更多的P. hondoensisvar.hondoensiswere eaten by the mice than outside the fence.这些结果表明，围栏内的小鼠数量增加是由于日本沼虾的变化，这随后增加了小鼠对种子的捕食，可能阻止了日本沼虾的再生。jezoensisvar.hondoensis.
The indirect consequence of sika deer (Cervus nippon) grazing on the regeneration ofPicea jezoensisvar.hondoensisthrough its effect on the small rodent population was assessed by evaluating seed predation by mice inside and outside the deer-proof fence on Mt Ohdaigahara, central Japan. Following construction of the deer-proof fence,Sasa nipponica, which covers the forest floor and is the main forage of deer, grew thicker inside the fence due to the absence of deer grazing than outside of the fence. Higher numbers of two species of woodmice (Apodemus speciosusandA. argenteus) were found inside the fence, possibly because the thickS. nipponicagrowth provides better cover. Inside the fence, more seeds ofP. jezoensisvar.hondoensiswere eaten by the mice than outside the fence. These results suggest that the mouse populations inside the fence increased due to changes inS. nipponicacover, which subsequently increased seed predation by the mice, possibly preventing regeneration ofP. jezoensisvar.hondoensis.