Small-scale variation in a pristine montane cloud forest: evidence on high soil fungal diversity and biogeochemical heterogeneity
Por:
Velez, Patricia, Tapia-Torres, Yunuen, Garcia-Oliva, Felipe, Gasca-Pineda, Jaime
Publicada:
11 ago 2021
Resumen:
Montane cloud forests are fragile biodiversity hotspots. To attain their
conservation, disentangling diversity patterns at all levels of
ecosystem organization is mandatory. Biotic communities are regularly
structured by environmental factors even at small spatial scales.
However, studies at this scale have received less attention with respect
to larger macroscale explorations, hampering the robust view of
ecosystem functioning. In this sense, fungal small-scale processes
remain poorly understood in montane cloud forests, despite their
relevance. Herein, we analyzed soil fungal diversity and ecological
patterns at the small-scale (within a 10 m triangular transect) in a
pristine montane cloud forest of Mexico, using ITS rRNA gene amplicon
Illumina sequencing and biogeochemical profiling. We detected a
taxonomically and functionally diverse fungal community, dominated by
few taxa and a large majority of rare species (81%). Undefined
saprotrophs represented the most abundant trophic guild. Moreover, soil
biogeochemical data showed an environmentally heterogeneous setting with
patchy clustering, where enzymatic activities suggest distinctive
small-scale soil patterns. Our results revealed that in this system,
deterministic processes largely drive the assemblage of fungal
communities at the small-scale, through multifactorial environmental
filtering.
Filiaciones:
Velez, Patricia:
Velez, P (Corresponding Author), Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico. Velez, Patricia, Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico. Tapia-Torres, Yunuen, Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Unidad Morelia, Morelia, Michoacan, Mexico. Garcia-Oliva, Felipe, Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico. Gasca-Pineda, Jaime, Univ Nacl Autonoma Mexico, Fac Estudios Super Iztacala, UBIPR
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