Temporal distance decay of similarity of ectomycorrhizal fungal community composition in a subtropical evergreen forest in Japan

Matsuoka, Shiro; Kawaguchi, Eri; Osono, Takashi

doi:10.1093/femsec/fiw061

Cited by 32 publications

(40 citation statements)

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“…The mean annual temperature (MAT) was 20.7°C and the annual precipitation (AP) was 2487 mm during the years be-tween 1976 and 2016 at Oku weather station located 7 km north of the study site. Recent climatic data are described in Matsuoka et al (2016). Minimum temperature was 5.4°C in January and minimum mean monthly precipitation was 130 mm in December between 1992 and 1999 (Yona Experimental Forest, University of the Ryukyus).…”

Section: Study Sitementioning

confidence: 99%

“…The decomposition experiment covered a 36-month period from April 2008 to April 2011. Nine study plots (5 · 5 m) were established within a forest stand measuring 50 · 15 m. The stand included 25 tree species, and C. sieboldii accounted for 55% of the total basal area of trees with diameter of breast height more than 5 cm (Matsuoka et al 2016). Litterbags were placed on the forest floor within the study plots in April 2008, with 6-10 bags per plot and per tree species.…”

Section: Litterbag Experimentsmentioning

confidence: 99%

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Leaf litter decomposition of 12 tree species in a subtropical forest in Japan

Osono

2017

Ecological Research

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The leaf litter decomposition of 12 tree species was examined for three years in a subtropical forest in Japan to follow the pattern of changes in organic chemical constituents and nitrogen (N) and the relationship between these components. The remaining mass of the leaf litter reached 7–53% of the original mass at the end of the field incubation, and the decomposition constants (k) ranged from 0.37 to 2.39 year−1. The decomposition constant was significantly negatively correlated with the initial content of acid‐unhydrolyzable residue (AUR) for all 12 tree species. A net increase of AUR that lasted for the first 3 to 6 months was noted for leaf litter of four tree species. The absolute amount of total N increased initially and then decreased thereafter in leaf litter of five tree species, whereas total N mass decreased throughout the study period in leaf litter of the other species. Contents of AUR and total N in leaf litter generally increased linearly with the accumulated mass loss of litter during decomposition, resulting in positive slopes of linear regressions. Lignocellulose index and AUR to N ratio of the litter showed convergent trends for 12 tree species as the decomposition progressed. When compared with datasets for an Asian climatic gradient, the decomposition rates in the subtropical forest was intermediate between the rates in tropical and temperate forests, and AUR and N contents in decomposing litter were consistently lower than those in temperate forests, indicating faster loss of AUR and N.

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Section: Study Sitementioning

confidence: 99%

Section: Litterbag Experimentsmentioning

confidence: 99%

Leaf litter decomposition of 12 tree species in a subtropical forest in Japan

Osono

2017

Ecological Research

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“…Based on correlations with environmental and geographic distance, both niche‐based and neutral processes have been linked to spatial variation in effective species turnover (Soininen, McDonald, & Hillebrand, ). More recently, the same approach has been extended to consider species turnover with time, that is, temporal turnover (Basset et al., ; Hatosy et al., ; Matsuoka, Kawaguchi, & Osono, ), with the goal of quantifying shifts in community composition over time frames that are too short for autocorrelation approaches (Collins, Micheli, & Hartt, ). Viewed from a temporal perspective, a community can be either stable or it can exhibit directional change, diverging from or converging towards its original state.…”

Section: Introductionmentioning

confidence: 99%

Stable baselines of temporal turnover underlie high beta diversity in tropical arthropod communities

D’Souza

Hebert

2018

Molecular Ecology

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While the high species diversity of tropical arthropod communities has often been linked to marked spatial heterogeneity, their temporal dynamics have received little attention. This study addresses this gap by examining spatio-temporal variation in the arthropod communities of a tropical montane forest in Honduras. By employing DNA barcode analysis and Malaise trap sampling across 4 years and five sites, 51,596 specimens were assigned to 8,193 presumptive species. High beta diversity was linked more strongly to elevation than geographic distance, decreasing by 12% when only the dominant species were considered. When sampling effort was increased by deploying more traps at a site, beta diversity only decreased by 2%, but extending sampling across years decreased beta diversity by 27%. Species inconsistently detected among years, likely transients from other settings, drove the low similarity in species composition among traps only a few metres apart. The dominant, temporally persistent species substantially influenced the cyclic pattern of change in community composition among years. This pattern likely results from divergence-convergence dynamics, suggesting a stable baseline of temporal turnover in each community. The overall results establish that large sample sizes are necessary to reveal species richness, but are not essential for quantifying beta diversity. This study further highlights the need for standardized methods of sampling and species identification to generate the comparative data required to evaluate biodiversity change in space and time.

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“…The methods of DNA analysis were generally according to those described in Matsuoka et al (2016b). Whole DNA was extracted from root tips in 240 samples using the modified CTAB method described by Gardes & Brum (1993).…”

Section: Methodsmentioning

confidence: 99%

Biogeographic patterns of ectomycorrhizal fungal communities associated withCastanopsis sieboldiiacross the Japanese archipelago

Matsuoka

Iwasaki

Sugiyama

et al. 2019

Preprint

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23Biogeographic patterns in ectomycorrhizal (ECM) fungal communities and their drivers 24 have been elucidated, including effects of host tree species and abiotic (climatic and 25 edaphic) conditions. At these geographic scales, genotypic diversity and composition of 26 single host tree species change with spatial and environmental gradients, reflecting their 27 historical dispersal events. However, whether the host genotypes can be associated with 28 the biogeographic patterns of ECM communities remains unclear. We investigated the 29 biogeographic pattern of ECM fungal community associated with the single host species 30 Castanopsis sieboldii (Fagaceae), whose genotypic diversity and composition across the 31 Japanese archipelago has already been evaluated, and we quantified the effect of host 32 genotypes on the biogeographic pattern. Richness and community composition of ECM 33 fungi changed with latitude and longitude; these biogeographic changes of ECM 34 community were significantly explained by host genotypic variables. Quantitative 35 analyses showed a higher relative explanatory power of climatic and spatial variables than 36 that of host genotypic variables for the biogeographic patterns in the ECM community. 37 Our results suggest the importance of historical events of host dispersal in determining 38 the biogeographic patterns of the ECM fungal community, while their explanation power 39 was lower than that for climatic filtering and/or fungal dispersal. 40 41 Key words 42 assembly process, biogeography, ectomycorrhiza, environmental gradient, fungal 43 community, host genotype, spatial structure 44 45 48boreal forests (Brundrett, 2009). The ECM fungi are a major component of the forest 49 floor and play an essential role in nutrient cycling via exchanging soil nutrients and 50 therefore are critical for determining and maintaining forest ecosystem processes (Smith 51 & Read, 2008). To infer the community responses to environmental changes, the 52 relationships between spatial patterns of ECM fungal communities and factors 53 responsible for those patterns have been investigated in previous studies (Lilleskov & 54 Parrent, 2007). In these studies the spatial variations of ECM fungal community were 55 related to key environmental factors including both biotic, such as species identity and 56 phylogeny of the host (Ishida et al., 2007; Tedersoo et al., 2013), and abiotic factors, such 57 as soil property (like soil pH) and climatic conditions (e.g., Bahram et al., 2012; Horton 58 et al., 2013). Whereas, recent studies have shown that dispersal of ECM fungi is limited 59 spatially, even at a few kilometers, and that this dispersal limitation can generate spatial 60 structures in ECM fungal communities independent of environmental factors (Peay et al., 61 2012; Peay & Bruns, 2014). Thus far, the effects of these factors have been investigated 62 at relatively small spatial scales, from forest to landscape scales (e.g., Tedersooet et al., 63 2011; Bahram et al., 2012; Matsu...

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Temporal distance decay of similarity of ectomycorrhizal fungal community composition in a subtropical evergreen forest in Japan

Cited by 32 publications

References 63 publications

Leaf litter decomposition of 12 tree species in a subtropical forest in Japan

Leaf litter decomposition of 12 tree species in a subtropical forest in Japan

Stable baselines of temporal turnover underlie high beta diversity in tropical arthropod communities

Biogeographic patterns of ectomycorrhizal fungal communities associated withCastanopsis sieboldiiacross the Japanese archipelago

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