Beech seeds as an ecosystem component
Beech seeds as an ecosystem component
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山毛榉种子作为生态系统的组成部分
DOI：
10.2307/3543613
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发表时间：
1977
期刊：
影响因子：
3.4
通讯作者：
B. O. Nielsen
中科院分区：
文献类型：
--
作者：
B. O. Nielsen
消耗0.7-5.4 g m ~（-2）yr ~（-1）（21-154 kJ m ~（-2）yr ~（-1））或年胚乳产量的8-61%（平均约36%）。自然繁殖是不成功的。潜在的食物资源（胚乳）的granivorous异养生物在森林地面代表1-34克m-2年-1（30-961千焦耳m-2年-1），然而，显然postdispersion种子捕食是非常低的。在1974年，约5%的种子生产被用于扩散前的种子捕食，而90-95%进入碎屑通道;强调了后者在种子携带能量流动模式中的重要性和扩散前的种子捕食在研究地点的作用。
consumption of 0.7-5.4 g m-2 yr'l (21-154 kJ mn2 yr-1) or 8-61% of the annual endosperm production (average about 36%). Natural reproduction was definitely unsuccessful. The potential food resource (endosperms) for granivorous heterotrophs in the forest floor represented 1-34 g m-2 yr-1 (30-961 kJ m-2 yr-1), however, apparently postdispersal seed predation was extremely low. In 1974 about 5 % of the seed production were utilized in predispersal seed predation, whereas 90-95% entered the detritus pathway; the importance of the latter channel in the flow pattern of seed borne energy and the effect of predispersal seed predation in the research site are emphasized.