Multitrophic diversity and biotic associations influence subalpine forest ecosystem multifunctionality.

编号 030034901

推送时间 20220627

研究领域 森林经理 

年份 2022 

类型 期刊 

语种 英语

标题 Multitrophic diversity and biotic associations influence subalpine forest ecosystem multifunctionality.

来源期刊 Ecology

期 第349期

发表时间 20220506

关键词 ecosystem multifunctionality;  elevation;  multitrophic diversity;  networks;  spatial scales;  subalpine forest; 

摘要 Biodiversity across multiple trophic levels is required to maintain multiple ecosystem functions. Yet, it remains unclear how multitrophic diversity and species interactions regulate ecosystem multifunctionality. Here, combining data from nine different trophic groups (including trees, shrubs, herbs, leaf mites, small mammals, bacteria, pathogenic fungi, saprophytic fungi and symbiotic fungi) and 13 ecosystem functions related to supporting, provisioning and regulating services, we used a multitrophic perspective to evaluate the effects of elevation, diversity and network complexity on scale-dependent subalpine forest multifunctionality. Our results demonstrate that elevation and soil pH significantly modified species composition and richness across multitrophic groups and influenced multiple functions simultaneously. We provide evidence that species richness across multiple trophic groups had stronger effects on multifunctionality than species richness at any single trophic level. Moreover, biotic associations, indicating the complexity of trophic networks, were positively associated with multifunctionality. The relative effects of diversity on multifunctionality increased at the scale of the larger community compared to a scale accounting for neighbouring interactions. Our results highlight the paramount importance of scale- and context- dependent multitrophic diversity and interactions for a better understanding of mountain ecosystem multifunctionality in a changing world. This article is protected by copyright. All rights reserved.

服务人员 付贺龙

服务院士 唐守正

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