Morphological Responses Explain Tolerance of the BambooYushania microphyllato Grazing

KesangWangchuk; AndrasDarabant; Prem BahadurRai

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Morphological Responses Explain Tolerance of the BambooYushania microphyllato Grazing

机译：形态学反应解释了小叶竹编ush放牧的耐受性

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Mechanisms of tolerance of the bambooY. microphyllato ungulate herbivory were investigated by measuring above- and belowground morphogenetic traits and biomass allocation patterns of the bambooY. microphyllaunder grazed and ungrazed conditions in a Himalayan mixed conifer forest. Data were collected from 5 populations consisting of 10 ramets each in adjacent grazed and ungrazed plots. Compared with ungrazed ramets, the aboveground morphological modifications of grazed ramets were higher culm density, shorter and thinner culms, shorter internode, and shorter top leaf. The belowground morphological modifications for the grazed ramets were thinner rhizomes, lower rhizome biomass and dry matter, more nodes, and shorter internodes. Despite the lower biomass and dry matter, the root-to-shoot ratio was higher for grazed ramets. Results suggest thatY. microphyllasubjected to herbivory shows aboveground overcompensation in terms of densification at the cost of belowground biomass, but at the same time maintains a higher proportion of belowground reserves, as compared to ungrazed conditions. These responses provide adequate evidence to conclude thatY. microphyllatolerates ungulate herbivory through above- and belowground morphological modifications.

机译：BambooY的耐受机制。通过测量bambooY的地上和地下形态特征和生物量分配模式，研究了小叶有蹄类食草动物。喜马拉雅针叶树混交林中的小叶放牧和未放牧条件。数据是从5个种群中收集的，每个种群由10个分株组成，分别位于相邻的放牧和未夷耕地。与未分株分株相比，放牧分株的地上形态学改变是茎密度高，茎短而薄，节间短和顶叶短。放牧分株的地下形态学修饰是根茎较薄，根茎生物量和干物质较低，节点较多和节间较短。尽管生物量和干物质含量较低，但放牧株的根茎比较高。结果提示Y。食草小叶藻在致密化方面表现出地上的过度补偿，其代价是地下生物量的损失，但与此同时，与未受污染的条件相比，地下储藏物的比例更高。这些回答提供了足够的证据来得出结论。微型叶草酸酯通过地上和地下的形态修饰来使有蹄类动物有蹄类。

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《Journal of Botany》 |2014年第4期|共7页
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KesangWangchuk; AndrasDarabant; Prem BahadurRai;
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7. Morphological Responses Explain Tolerance of the Bamboo Yushania microphylla to Grazing [O] . Kesang Wangchuk, Andras Darabant, Prem Bahadur Rai 2014

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Morphological Responses Explain Tolerance of the BambooYushania microphyllato Grazing

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