Higher biodiversity is required to sustain multiple ecosystem processes across temperature regimes.
Higher biodiversity is required to sustain multiple ecosystem processes across temperature regimes.
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需要更高的生物多样性来维持跨温度制度的多个生态系统过程。
DOI：
10.1111/gcb.12688
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发表时间：
2015-01
影响因子：
11.6
通讯作者：
Woodward G
中科院分区：
文献类型：
--
作者：
Perkins DM;Bailey RA;Dossena M;Gamfeldt L;Reiss J;Trimmer M;Woodward G
生物多样性的丧失在全世界范围内迅速发生，但在环境变化的情况下，维持生态系统功能所需的物种是少还是多，目前尚不确定。生物多样性的重要性可能会提高时，多个生态系统过程（称为多功能）和环境背景的考虑，但没有研究明确量化这一日期。我们测量了五个关键过程和它们的组合多功能在三个温度（5，10和15 °C）在淡水水族馆含有不同的动物组合（1-4底栖大型无脊椎动物物种）。对于单一的过程，生物多样性的影响是弱的，最好的预测加性为基础的模型，即多元文化的表现代表了其单一文化部分的总和。然而，生物多样性在低温和高温（但不是中温）下对多功能性有显著影响。不同温度下物种对各种过程的贡献各不相同，这意味着要在不同温度下维持多功能性，就需要比单一过程更大的生物多样性。这表明，以前的研究可能低估了生物多样性在不断变化的环境中维持生态系统功能的重要性。
Biodiversity loss is occurring rapidly worldwide, yet it is uncertain whether few or many species are required to sustain ecosystem functioning in the face of environmental change. The importance of biodiversity might be enhanced when multiple ecosystem processes (termed multifunctionality) and environmental contexts are considered, yet no studies have quantified this explicitly to date. We measured five key processes and their combined multifunctionality at three temperatures (5, 10 and 15 °C) in freshwater aquaria containing different animal assemblages (1–4 benthic macroinvertebrate species). For single processes, biodiversity effects were weak and were best predicted by additive-based models, i.e. polyculture performances represented the sum of their monoculture parts. There were, however, significant effects of biodiversity on multifunctionality at the low and the high (but not the intermediate) temperature. Variation in the contribution of species to processes across temperatures meant that greater biodiversity was required to sustain multifunctionality across different temperatures than was the case for single processes. This suggests that previous studies might have underestimated the importance of biodiversity in sustaining ecosystem functioning in a changing environment.
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影响因子：
16.6
作者：
通讯作者：
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影响因子：
64.8
作者：
Hooper, David U.;Adair, E. Carol;O'Connor, Mary I.
通讯作者：
O'Connor, Mary I.
影响因子：
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作者：
GRACA, MAS;MALTBY, L;CALOW, P
通讯作者：
CALOW, P
影响因子：
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作者：
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通讯作者：
Malmqvist, B
影响因子：
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作者：
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通讯作者：
Duffy, J. Emmett