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Cushion plants in the alpine of British Columbia, Canada: Systematic review, trophic facilitation, and pollen limitation.

机译：加拿大不列颠哥伦比亚省高山地区的垫层植物：系统评价，营养促进和花粉限制。

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The overarching hypothesis tested is that cushion plants are foundation species in the alpine, contributing to ecosystem structure and function. This thesis provides a systematic review of cushion plant ecology literature, then quantifies the effect of cushions on higher trophic levels, and finally assesses pollen limitation with a manipulative experiment. The majority of cushion species in many locations have never been studied. Community level trophic effects of cushions are unknown. From extensive observations, cushions have a significant positive effect on community diversity of arthropods and pollinators. No evidence of pollen limitation and low rates of selfing, indicate that pollination rates are high. Hence, cushions are foundation species or module hubs in the ecological network and pollinators, critical for the reproduction of alpine plants. The loss of either cushions or pollinators in the alpine would therefore have significant community wide implications to the structure and function of the ecosystem.

机译：检验的总体假设是，坐垫植物是高山地区的基础物种，对生态系统的结构和功能做出了贡献。本论文对垫层植物生态学文献进行了系统综述，然后量化了垫层对较高营养级的影响，最后通过操纵实验评估了花粉的限制。从未研究过许多地方的大多数垫子种类。垫子在社区的营养作用尚不清楚。从广泛的观察中，垫子对节肢动物和传粉媒介的群落多样性具有显着的积极影响。没有证据表明花粉限制和自交率低，表明授粉率很高。因此，垫层是生态网络和授粉媒介中的基础物种或模块枢纽，对于高山植物的繁殖至关重要。因此，在高山上失去垫层或传粉媒介将对整个社区对生态系统的结构和功能产生重大影响。

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作者
Reid, Anya M.;
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作者单位

York University (Canada).;

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授予单位 York University (Canada).;
学科 Ecology.;Entomology.;Botany.
学位 M.Sc.
年度 2011
页码 136 p.
总页数 136
原文格式 PDF
正文语种 eng
中图分类
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Cushion plants in the alpine of British Columbia, Canada: Systematic review, trophic facilitation, and pollen limitation.

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