The more the merrier? Multi-species grazing of small herbivores mediates plant community impacts
The more the merrier? Multi-species grazing of small herbivores mediates plant community impacts
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多多益善？
DOI：
10.1007/s10531-016-1178-7
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发表时间：
2016-07
影响因子：
3.4
通讯作者：
Zhang, Yanming
中科院分区：
文献类型：
--
作者：
Ji, Weihong;Russell, James C.;Zhang, He;Zhang, Yanming
小型草食动物在草地生态系统中起着关键性的作用。认识到草食动物共存的综合效应对于指导草地恢复和生物多样性保护具有重要意义。在青藏高原，高原鼠兔和喜马拉雅旱獭都被西藏人民和当地政府视为有害生物，但对它们的联合影响知之甚少。我们进行了一项实地研究，以确定鼠兔和旱獭对植物生物多样性和植被结构的综合影响。仅高原鼠兔就持续降低了植物高度和多样性，并增加了物理上难吃的植物的植被覆盖。然而，土拨鼠与鼠兔的共存减少了物理上不好吃的植物的植被覆盖，同时增加了可口的植物和植物多样性的覆盖，最终改变了鼠兔的影响，并调节了植物群落的各个方面。这些结果说明，增加草地生态系统中小型草食动物的丰度和丰富度，可能促进植物多样性，有利于植被恢复，而不是加剧草地的退化。
Small herbivores play keystone functional roles in grassland ecosystems. Recognising the combined effects where herbivores co-exist is important for guiding grassland restoration and biodiversity conservation. On the Tibetan Plateau, both plateau pikas and Himalayan marmots are regarded as pests by Tibetan people and local government, but little is known about their combined effects. We conducted a field study to determine the combined effects of pikas and marmots on plant biodiversity and vegetation structure. Plateau pikas alone consistently reduced the plant height and diversity and increased the vegetation cover of physically unpalatable plants. However, the co-existence of marmots with pikas decreased the vegetation cover of physically unpalatable plants, while increasing the cover of palatable plants and plant diversity, ultimately changing the impact of pikas alone and modulating aspects of the plant community. These results illustrate that increasing the abundance and richness of small herbivores in grassland ecosystems may promote plant diversity and benefit vegetation restoration rather than aggravate the degradation of grasslands.
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DOI：
10.1080/15230430.2001.12003423
发表时间：
2001-05
期刊：
Arctic, Antarctic, and Alpine Research
影响因子：
--
作者：
Youri Semenov;R. Ramousse;M. Berre;Youri Tutukarov
通讯作者：
Youri Semenov;R. Ramousse;M. Berre;Youri Tutukarov
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
E. Seabloom;T. M. Anderson;J. Bakker;Scott;L. Collins;Ellen I. Damschen;K. Davies;M. Nicole
通讯作者：
E. Seabloom;T. M. Anderson;J. Bakker;Scott;L. Collins;Ellen I. Damschen;K. Davies;M. Nicole
影响因子：
3.8
作者：
V. Retzer
通讯作者：
V. Retzer
影响因子：
1.1
作者：
Nikol'skii, AA;Ulak, A
通讯作者：
Ulak, A
DOI：
10.5860/choice.37-4601
发表时间：
2014
期刊：
--
影响因子：
--
作者：
H. Trinh
通讯作者：
H. Trinh