Collapsing foundations: The ecology of the British oak, implications of its decline and mitigation options
Collapsing foundations: The ecology of the British oak, implications of its decline and mitigation options
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崩溃的基础：英国橡树的生态、其衰退的影响和缓解方案
DOI：
10.1016/j.biocon.2019.03.040
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发表时间：
2019
影响因子：
5.9
通讯作者：
Mitchell R
中科院分区：
文献类型：
--
作者：
Mitchell R
橡树(Quercusspp.)由于各种害虫、病原体和气候变化，全球范围内正在下降。对丧失橡树等关键物种的影响的评估应包括对相关生物多样性和生态系统功能的影响，并考虑缓解办法。在这里，我们评估了英国境内栎类种群减少的潜在生态影响。我们整理了一个与Q有关的2300个物种的数据库。Petraea/robura，其中326个被发现是义务伙伴(仅发现OnQ.减少橡树衰退对相关生物多样性的影响的一个可能的缓解措施是建立替代树种。然而，在评估的30种替代树种中，没有一种支持与橡树相关的高比例树种(最高28%的树种是水曲柳，目前由于一种真菌--水曲霉，水曲柳的数量正在下降)。然而，由于其与其他树种的相似性，橡树的功能(叶凋落物/土壤化学和分解)具有潜在的可复制性。在五种不同的替代树种选择的情况下，探讨了理论上橡树减少50%对生态系统功能和相关物种的影响对英国四个主要橡树林地群落的影响。最具复原力的林地群落(在评估的所有方面)是那些能够支持树种多样性最大的林地群落，以及当目前出现的树种取代橡树时。预测的变化最大的是WHERF。除了橡树的减少，还失去了Extresior，如果只有一个物种，特别是假枫树，填补了树冠的空白。
Oak (Quercusspp.) is declining globally due to a variety of pests, pathogens and climate change. Assessments of the impact of losing keystone species such as oak, should include the impact on associated biodiversity and ecosystem functioning, and consider mitigation options. Here, we assess the potential ecological implications of a decline inQuercus petraea/roburwithin the UK. We collated a database of 2300 species associated withQ. petraea/roburof which 326 were found to be obligate associates (only found onQ. petraea/robur).One potential mitigating measure for lessening the impact of oak decline on associated biodiversity would be establishing alternative tree species. However, of 30 alternative tree species assessed, none supported a high proportion of the oak-associated species (maximum 28% byFraxinus excelsiorash, which is currently declining due toHymenoscyphus fraxineus, a fungus). However, the functioning of oak (leaf litter/soil chemistry and decomposition) was potentially replicable owing to its similarities with other tree species.The impact on the four main oak woodland communities within the UK, of a theoretical 50% decline in oak on ecosystem functioning and associated species was explored for five scenarios, that differed in the selection of replacement tree species. The most resilient woodland communities (in all the aspects assessed) were those capable of supporting the greatest diversity of tree species and when the currently occurring tree species replaced oak. The greatest change was predicted whereF. excelsiorwas lost in addition to a decline in oak, and if only one species, particularlyAcer pseudoplantanussycamore, filled the canopy gaps.
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影响因子：
6.4
作者：
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影响因子：
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作者：
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DOI：
10.1007/bf00477156
发表时间：
1995
期刊：
Water, Air, and Soil Pollution
影响因子：
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作者：
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影响因子：
1.4
作者：
F. Gallego;A. Algaba;R. Fernández
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