Pedobionts related to «suspended» soils of a tropical epiphyte<i>Asplenium nidus</i>L.

Sergeeva, T. K.; Kholopova, L. B.; Tyen, Nguen Tri

doi:10.1080/03946975.1991.10539473

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…Suspended soils serve as a biodiversity depository, and function in a similar way to the upper horizons of more northern forest ground soils. This idea is confirmed by the fact that, on the whole, the biodiversity of suspended soils is greater than that of terrestrial soils in the tropics [ 17 , 18 , 19 , 20 , 49 ]. However, our studies have only partially confirmed this data.…”

Section: Discussionmentioning

confidence: 94%

“…Epiphytic materials are home to many invertebrates; for example, microarthropods [ 17 , 18 ], including Collembola and Oribatidei [ 19 ]. The biomass of suspended-soil inhabitants is 20 times greater than that of the most inhabited soil horizon [ 20 ]. In several Asplenium nidus ‘trash-can’ epiphytic fern specimens collected from three Vietnamese sample locations, 150 species of invertebrates were found [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…The biomass of suspended-soil inhabitants is 20 times greater than that of the most inhabited soil horizon [ 20 ]. In several Asplenium nidus ‘trash-can’ epiphytic fern specimens collected from three Vietnamese sample locations, 150 species of invertebrates were found [ 20 ]. The biodiversity of ecosystems found in tropical soils is not as great as that found aboveground ecosystems; additionally, the diversity of the soil fauna [ 21 ] and prokaryotic communities [ 22 ] found in tropical soils is less than that found in temperate soils.…”

Section: Introductionmentioning

confidence: 99%

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Microbiomes in Suspended Soils of Vascular Epiphytes Differ from Terrestrial Soil Microbiomes and from Each Other

2021

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Microbial biodiversity parameters for tropical rainforests remain poorly understood. Whilst the soil microbiome accounts up to 95% of the total diversity of microorganisms in terrestrial ecosystems, the microbiome of suspended soils formed by vascular epiphytes remains completely unexplored. Samples of ground and suspended soils were collected in Cat Tien National Park, southern Vietnam. DNA extraction and sequencing were performed, and libraries of 16s rDNA gene sequences were analyzed. Alpha diversity indices of the microorganisms were the highest in the forest ground soil. In general, the microbiological diversity of all the soil types was found to be similar at the phylum level. Taxonomic composition of the bacterial communities in the suspended soils of plants from the same species are not closer than the taxonomic compositions of the communities in the suspended soils of different plant species. However, the beta diversity analysis revealed significant differences in the movement of mineral elements in terrestrial versus suspended soils. Our data showed that the suspended soils associated with vascular epiphytes were a depository of unique microbiological biodiversity. A contributing factor was the presence of large amounts of organic matter in the suspended soils—deposits collected by the epiphytes—which would have been degraded by termites if it had reached the ground. Further, the nutrient content of the suspended soils was prime for soil respiration activity and taxonomic microbial community biodiversity.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microbiomes in Suspended Soils of Vascular Epiphytes Differ from Terrestrial Soil Microbiomes and from Each Other

2021

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“…180 plants ha –1 . Using the estimate of 4.22 kg of trapped litter per plant ( n = 10), as given by Sergeeva, Kholopova & Tyen (), we calculate that the A. nidus impounds 7600 kg of litter ha –1 .…”

Section: Trapped Litter Massmentioning

confidence: 99%

Litter-trapping plants: filter-feeders of the plant kingdom

Zona

Christenhusz

2015

Bot J Linn Soc

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Litter-trapping plants have specialized growth habits and morphologies that enable them to capture falling leaf litter and other debris, which the plants use for nutrition after the litter has decayed. Litter is trapped via rosettes of leaves, specially modified leaves and/or upward-growing roots (so-called 'root baskets'). Litter-trappers, both epiphytic and terrestrial, are found throughout the tropics, with only a few extra-tropical species, and they have evolved in many plant families. The trapped litter mass is a source of nutrients for litter-trapping plants, as well as food and housing for commensal organisms. Despite their unique mode of life, litter-trapping plants are not well documented, and many questions remain about their distribution, physiology and evolution.-

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