北方森林斑块中林木栖息群落的真菌特征与环境的关系

IF 4.6 1区 环境科学与生态学 Q1 ECOLOGY
Samantha K. Dawson, Håkan Berglund, Otso Ovaskainen, Bengt G. Jonsson, Tord Snäll, Elisabet Ottosson, Mari Jönsson
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引用次数: 0

摘要

真菌的性状可以让人们从机制上了解栖息在木材中的真菌如何与其环境相互作用,以及这种相互作用如何影响枯木中的群落组合。然而,真菌性状的探索相对较新,几乎没有研究测量真菌在其环境中的性状。在这项研究中,我们测试了位于瑞典北部北方不同自然类型的55个孤立森林斑块(0.1-9.9公顷)中571根挪威云杉(Picea abies)原木上的繁殖真菌群落的物种和性状与环境的关系。所研究的斑块是:(1)高度管理景观中的半自然预留斑块,或(2)位于非管理景观中的古老自然斑块。我们测试了物种和性状与枯木基质和森林斑块变量的关系。我们测量了群落中 19 个物种的平均果体大小和密度。性状的组合与原木腐朽阶段和森林斑块的自然度有关,说明了确定性环境过滤在形成栖息于木材中的真菌群落中的重要作用。早期腐朽阶段群落的子实体较大,密度较低,为半残留型的一年生子实体,且多为白腐真菌。物种丰富的中期腐朽阶段群落具有混合的性状组合,有更多中等大小的长寿多年生子实体,褐腐真菌和白腐真菌的数量相当。最后,晚腐烂期群落的子实体更小、更密集、更多年生,更多的是褐腐类型。所研究的特征与腐烂阶段之间的关系在人工种植区和天然斑块中都很相似。不过,与未受管理的自然斑块相比,高度管理景观中的隔离带半自然斑块更多支持果体较小、多年生和复壮的物种。综述。我们发现,原木腐朽阶段是孤立森林斑块中真菌群落物种和特征组合的主要驱动因素。我们的结果表明,腐朽阶段会影响四种繁殖性状(子实体密度、大小、寿命和类型)和一种资源利用性状(白腐或褐腐)。我们的研究结果首次强调,在不同的森林自然条件下,具有不同真菌繁殖性状的群落在所有枯木腐烂阶段都能保持不变。在期刊博客上免费阅读本文的通俗摘要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Fungal trait-environment relationships in wood-inhabiting communities of boreal forest patches

Fungal trait-environment relationships in wood-inhabiting communities of boreal forest patches

Fungal trait-environment relationships in wood-inhabiting communities of boreal forest patches

Read the free Plain Language Summary for this article on the Journal blog.

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来源期刊
Functional Ecology
Functional Ecology 环境科学-生态学
CiteScore
9.00
自引率
1.90%
发文量
243
审稿时长
4 months
期刊介绍: Functional Ecology publishes high-impact papers that enable a mechanistic understanding of ecological pattern and process from the organismic to the ecosystem scale. Because of the multifaceted nature of this challenge, papers can be based on a wide range of approaches. Thus, manuscripts may vary from physiological, genetics, life-history, and behavioural perspectives for organismal studies to community and biogeochemical studies when the goal is to understand ecosystem and larger scale ecological phenomena. We believe that the diverse nature of our journal is a strength, not a weakness, and we are open-minded about the variety of data, research approaches and types of studies that we publish. Certain key areas will continue to be emphasized: studies that integrate genomics with ecology, studies that examine how key aspects of physiology (e.g., stress) impact the ecology of animals and plants, or vice versa, and how evolution shapes interactions among function and ecological traits. Ecology has increasingly moved towards the realization that organismal traits and activities are vital for understanding community dynamics and ecosystem processes, particularly in response to the rapid global changes occurring in earth’s environment, and Functional Ecology aims to publish such integrative papers.
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