Relative importance of climate, vegetation, and spatial factors in the community and functional composition of wood-inhabiting fungi in discontinuously distributed subalpine spruce forests
Relative importance of climate, vegetation, and spatial factors in the community and functional composition of wood-inhabiting fungi in discontinuously distributed subalpine spruce forests
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不连续分布的亚高山云杉林木栖真菌群落和功能组成中气候、植被和空间因素的相对重要性
DOI：
10.1139/cjfr-2020-0344
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发表时间：
2021
影响因子：
2.2
通讯作者：
Sakuma Daisuke
中科院分区：
文献类型：
--
作者：
Fukasawa Yu;Matsukura Kimiyo;Ando Yoko;Suzuki Satoshi N.;Okano Kunihiro;Song Zewei;Aizawa Mineaki;Sakuma Daisuke
木栖真菌对粗木屑（CWD）的分解至关重要。为了评价气候、植被和空间因子对亚高山云杉（Picea jezoensis, Sieb） CWD真菌群落功能组成的相对重要性。&调查)。卡尔。利用高通量DNA测序技术，对日本中部6个亚高山森林的云杉枯木样本进行了元条形码分析。我们在67个云杉CWDs中检测到454个真菌操作分类单位（otu），并确定空间因子比环境因子（气候和植被）更能解释群落变异。然而，如果我们排除地理上远离其他研究地点的一个地点的数据，环境因素比空间因素解释的比例更大。OTU数和褐腐菌发生与年平均气温呈正相关，与年平均降水量呈负相关。同样，森林植被的主成分对褐腐菌的OTU数和发生也有显著影响。降水季节性与未定义腐养菌OTU数呈正相关。这些结果表明，属于不同官能团的真菌otu对环境变量的响应不同。
Wood-inhabiting fungi are critically important for the decomposition of coarse woody debris (CWD). To evaluate the relative importance of climate, vegetation, and spatial factors in the functional composition of fungal communities that inhabit CWD in discontinuously distributed subalpine Hondo spruce (Picea jezoensis(Sieb. & Zucc.) Carr. var.hondoensis(Mayr) Rehder) forests, a metabarcoding analysis was conducted on spruce deadwood samples obtained from six subalpine forests in central Japan using a high-throughput DNA sequencing technique. We detected 454 fungal operational taxonomic units (OTUs) from 67 spruce CWDs and determined that spatial factors explained a larger fraction of community variation than environmental (climate and vegetation) factors at all six study sites. However, environmental factors explained a larger fraction than spatial factors if we excluded data from one site that is geographically distant from other study sites. The OTU number and the occurrence of brown-rot fungi were positively associated with mean annual temperature and negatively associated with mean annual precipitation. Similarly, the principal component of forest vegetation significantly affected the OTU number and occurrence of brown-rot fungi. Precipitation seasonality was positively associated with the OTU number of undefined saprotrophs. These results suggest that fungal OTUs belonging to different functional groups respond differently to environmental variables.
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真菌可以在哪些空间和时间尺度上表明栖息地的连通性？
影响因子：
6.9
作者：
Jenni Nordén;J. Åström;T. Josefsson;S. Blumentrath;O. Ovaskainen;A. Sverdrup‐Thygeson;B. Nordén
通讯作者：
B. Nordén
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作者：
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影响因子：
2.7
作者：
J. L. Willis;M. Walters
通讯作者：
M. Walters
DOI：
10.1002/joc.5086
发表时间：
2017-10-01
期刊：
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子：
--
作者：
Fick, Stephen E.;Hijmans, Robert J.
通讯作者：
Hijmans, Robert J.
影响因子：
3.7
作者：
Toju H;Tanabe AS;Yamamoto S;Sato H
通讯作者：
Sato H