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Diversity of wood-inhabiting Agaricomycotina on wood of different size classes in riparian forests of UruguayAuthor(s): Sebastián Martínez; Karen K. Nakasone; Lina Bettucci
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionMany Agaricomycotina species are saprobes, playing a fundamental role in nutrient cycling in forest ecosystems by decomposing wood. Little is known about factors affecting diversity of wood-inhabiting fungi in the neotropical, warm temperate native forests of Uruguay. Most of these native forests are riparian harboring about 300 tree species. In this study, we assessed the diversity of wood-inhabiting fungi on wood of different size classes in riparian forests of Uruguay. We recovered 186 species of Agaricomycotina, including 113 corticioid and 58 polyporoid taxa. Eleven taxa accounted for 38% of the all the samples. The highest number of species was found on fine woody debris (FWD, 2-10 cm diam) than coarse woody debris (CWD, >10 cm diam) and very fine woody debris (VFWD, <2 cm diam). Species-accumulation curves did not reach an asymptote for any of the groups or wood diameter classes studied. Polyporoids were more frequently recorded on CWD (61% of collections) and corticioids on VFWD (77%). Species richness estimated by non-parametric estimators indicates an Agaricomycotina species richness between 450 and 700 taxa. Our results show that Uruguayan riparian forests, despite its limited area and fragmentation, support a wood-inhabiting Agaricomycotina diversity comparable to less fragmented forests with more plant diversity.
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CitationMartínez, Sebastián; Nakasone, Karen K.; Bettucci, Lina. 2019. Diversity of wood-inhabiting Agaricomycotina on wood of different size classes in riparian forests of Uruguay. Mycoscience. 60(3): 156-164. https://doi.org/10.1016/j.myc.2019.02.001.
KeywordsAgaricomycetes, Corticiaceae, Fungal diversity, Polyporaceae, Warm temperate forest
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