Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF
Microbial mats are complex communities that represent a large biomass fraction in non-marine Antarctic ecosystems. They confer structure to soils and constitute, by themselves, intricate microecosystems, where a great variety of microorganisms and microfauna contributes to the ecosystem functions. A...
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ftfrontimediafig:oai:figshare.com:article/7905890 2023-05-15T13:38:04+02:00 Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF Pablo Almela David Velázquez Eugenio Rico Ana Justel Antonio Quesada 2019-03-28T04:20:11Z https://doi.org/10.3389/fmicb.2019.00628.s001 https://figshare.com/articles/Image_1_Carbon_Pathways_Through_the_Food_Web_of_a_Microbial_Mat_From_Byers_Peninsula_Antarctica_TIF/7905890 unknown doi:10.3389/fmicb.2019.00628.s001 https://figshare.com/articles/Image_1_Carbon_Pathways_Through_the_Food_Web_of_a_Microbial_Mat_From_Byers_Peninsula_Antarctica_TIF/7905890 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology microbial mats Antarctica cyanobacteria trophic web carbon pathways stable isotopes prokaryotic community eukaryotic community Image Figure 2019 ftfrontimediafig https://doi.org/10.3389/fmicb.2019.00628.s001 2019-04-03T23:00:02Z Microbial mats are complex communities that represent a large biomass fraction in non-marine Antarctic ecosystems. They confer structure to soils and constitute, by themselves, intricate microecosystems, where a great variety of microorganisms and microfauna contributes to the ecosystem functions. Although in recent years Antarctic microbial mats have been thoroughly investigated, trophic relationships within the communities remain unresolved. We therefore conducted a study of the trophic relationships of a microbial mat from Byers Peninsula, Antarctica, using DNA analysis and stable isotopes as trophic tracers. Our results suggested, based on a Bayesian mixing model, that at least four trophic levels are present within this microecosystem: primary producers (cyanobacteria and diatoms), primary consumers (rotifers and tardigrades), secondary consumers (nematodes) and decomposers (fungi). Nematodes would play a key role as top consumers of the community, connecting the two carbon inputs described into the system, as omnivores at the secondary trophic level. In addition, carbon pathways from primary trophic level to consumers take place quickly during the first 24 h after its incorporation in the primary producers, dispersing across all the trophic levels and reaching secondary consumers in less than 11 days. This suggests that, given the changing physical conditions and presumably short periods of activity, there is a fine temporal coupling among the organisms in the community, minimizing the redundancy in function performance among trophic levels. Still Image Antarc* Antarctic Antarctica Frontiers: Figshare Antarctic Byers ENVELOPE(-60.283,-60.283,-63.900,-63.900) Byers peninsula ENVELOPE(-61.066,-61.066,-62.633,-62.633) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology microbial mats Antarctica cyanobacteria trophic web carbon pathways stable isotopes prokaryotic community eukaryotic community |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology microbial mats Antarctica cyanobacteria trophic web carbon pathways stable isotopes prokaryotic community eukaryotic community Pablo Almela David Velázquez Eugenio Rico Ana Justel Antonio Quesada Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology microbial mats Antarctica cyanobacteria trophic web carbon pathways stable isotopes prokaryotic community eukaryotic community |
description |
Microbial mats are complex communities that represent a large biomass fraction in non-marine Antarctic ecosystems. They confer structure to soils and constitute, by themselves, intricate microecosystems, where a great variety of microorganisms and microfauna contributes to the ecosystem functions. Although in recent years Antarctic microbial mats have been thoroughly investigated, trophic relationships within the communities remain unresolved. We therefore conducted a study of the trophic relationships of a microbial mat from Byers Peninsula, Antarctica, using DNA analysis and stable isotopes as trophic tracers. Our results suggested, based on a Bayesian mixing model, that at least four trophic levels are present within this microecosystem: primary producers (cyanobacteria and diatoms), primary consumers (rotifers and tardigrades), secondary consumers (nematodes) and decomposers (fungi). Nematodes would play a key role as top consumers of the community, connecting the two carbon inputs described into the system, as omnivores at the secondary trophic level. In addition, carbon pathways from primary trophic level to consumers take place quickly during the first 24 h after its incorporation in the primary producers, dispersing across all the trophic levels and reaching secondary consumers in less than 11 days. This suggests that, given the changing physical conditions and presumably short periods of activity, there is a fine temporal coupling among the organisms in the community, minimizing the redundancy in function performance among trophic levels. |
format |
Still Image |
author |
Pablo Almela David Velázquez Eugenio Rico Ana Justel Antonio Quesada |
author_facet |
Pablo Almela David Velázquez Eugenio Rico Ana Justel Antonio Quesada |
author_sort |
Pablo Almela |
title |
Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
title_short |
Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
title_full |
Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
title_fullStr |
Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
title_full_unstemmed |
Image_1_Carbon Pathways Through the Food Web of a Microbial Mat From Byers Peninsula, Antarctica.TIF |
title_sort |
image_1_carbon pathways through the food web of a microbial mat from byers peninsula, antarctica.tif |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmicb.2019.00628.s001 https://figshare.com/articles/Image_1_Carbon_Pathways_Through_the_Food_Web_of_a_Microbial_Mat_From_Byers_Peninsula_Antarctica_TIF/7905890 |
long_lat |
ENVELOPE(-60.283,-60.283,-63.900,-63.900) ENVELOPE(-61.066,-61.066,-62.633,-62.633) |
geographic |
Antarctic Byers Byers peninsula |
geographic_facet |
Antarctic Byers Byers peninsula |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
doi:10.3389/fmicb.2019.00628.s001 https://figshare.com/articles/Image_1_Carbon_Pathways_Through_the_Food_Web_of_a_Microbial_Mat_From_Byers_Peninsula_Antarctica_TIF/7905890 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2019.00628.s001 |
_version_ |
1766101224197718016 |