@article{oai:doshisha.repo.nii.ac.jp:02000299,
 author = {Matsuoka, Shunsuke and Ito, Koichi and Osono, Takashi and 大園, 享司},
 issue = {1},
 journal = {同志社大学ハリス理化学研究報告, The Harris science review of Doshisha University},
 month = {Apr},
 note = {カナダ南西部のブリティッシュコロンビア州において針葉リターに見出される微小菌類の多様性の地理的分布を調べた。気候条件と地理的な位置が異なる針葉樹林25地点において、トガサワラ属、ツガ属、トウヒ属、モミ属の9樹種の針葉リターを採取し、77種の微小菌類を分離した。非計量多次元尺度構成法による座標付けの結果、微小菌類の種組成が地点と針葉の樹種により異なることが示され、緯度、標高、年平均気温、および最寒月と最暖月の平均気温が影響していた。主要な微小菌類の種はこれらの環境要因に対して様々な応答を示しており、Trichoderma polysporumとPenicillium miczynskiiは同属の別種と比べて、高標高、高緯度、温度の低い地点で出現する傾向が認められた。種組成とは対照的に、種数の平均値については針葉の樹種、地理的な位置、気候条件による影響は認められなかった。分散分割により環境要因と空間要因の相対的な効果を分離したところ、気候条件のみならず空間要因が菌類群集の構造に影響していることが示され、先住効果や分散制限といった非ニッチ過程の寄与が示唆された。, The geographic distribution of microfungal diversity associated with needle litter was investigated in British Columbia, south-western Canada. A total of 77 microfungal species were isolated from needle litters of nine tree species in Pseudotsuga, Tsuga, Picea, and Abies collected in 25 coniferous forest sites that varied in climatic conditions and geographic locations. The nonmetric multidimensional scaling ordination showed the segregation of microfungal species composition between the study sites and needle species, which was significantly correlated to the latitude, elevation, mean annual temperature, and mean temperature at coldest and warmest months of the sites. Major microfungal species showed variable responses to these environmental factors: Trichoderma polysporum and Penicillium miczynskii tended to occur at higher elevations and latitudes and lower temperatures, compared with other species of the same genera. In contrast to the species composition, the mean number of species was not significantly affected by needle species, geographic locations, or climatic conditions. Applying variation partitioning to disentangle the relative effect of the environmental and spatial factors indicated the role of not only climatic but spatial factors in structuring fungal assemblages, suggesting the contribution of such non-niche processes as priority effect and dispersal limitation., application/pdf},
 pages = {8--16},
 title = {Geographic distribution of needle litter microfungi in British Columbia},
 volume = {65},
 year = {2024},
 yomi = {オオソノ, タカシ}
}