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Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania

The percentage compositions of soil herbivorous, bacterivorous and fungivorous nematodes in forests, grasslands and scrubs in Romania was analysed. Percentages of nematode abundance, biomass and metabolic footprint methods were used to evaluate the patterns and relative size of herbivory, bacterial-...

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Autores principales: Ciobanu, Marcel, Popovici, Iuliana, Zhao, Jie, Stoica, Ilie-Adrian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4664958/
https://www.ncbi.nlm.nih.gov/pubmed/26620189
http://dx.doi.org/10.1038/srep17606
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author Ciobanu, Marcel
Popovici, Iuliana
Zhao, Jie
Stoica, Ilie-Adrian
author_facet Ciobanu, Marcel
Popovici, Iuliana
Zhao, Jie
Stoica, Ilie-Adrian
author_sort Ciobanu, Marcel
collection PubMed
description The percentage compositions of soil herbivorous, bacterivorous and fungivorous nematodes in forests, grasslands and scrubs in Romania was analysed. Percentages of nematode abundance, biomass and metabolic footprint methods were used to evaluate the patterns and relative size of herbivory, bacterial- and fungal-mediated channels in organic and mineral soil horizons. Patterns and magnitudes of herbivore, bacterivore and fungivore energy pathways differed for a given ecosystem type and soil depth according to the method used. The relevance of herbivore energy channel increased with soil depth due to higher contribution of root-feeders. Ectoparasites, sedentary parasites and epidermal cell and root hair feeders were the most important contributors to the total biomass and metabolic footprints of herbivores. Metabolic footprint method revealed the general dominance of bacterial-based energy channel in all five types of ecosystems. The influence of altitude and climatic factors on percentages of abundance, biomass and metabolic footprints of herbivores, bacterivores and fungivores decreased with soil depth, whereas the influence of humus content, cation-exchange capacity and base saturation increased. Vegetation, altitude, climate and soil physico-chemical characteristics are important factors that influenced the abundance, biomass and metabolic footprints of herbivores, bacterivores and fungivores.
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spelling pubmed-46649582015-12-03 Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania Ciobanu, Marcel Popovici, Iuliana Zhao, Jie Stoica, Ilie-Adrian Sci Rep Article The percentage compositions of soil herbivorous, bacterivorous and fungivorous nematodes in forests, grasslands and scrubs in Romania was analysed. Percentages of nematode abundance, biomass and metabolic footprint methods were used to evaluate the patterns and relative size of herbivory, bacterial- and fungal-mediated channels in organic and mineral soil horizons. Patterns and magnitudes of herbivore, bacterivore and fungivore energy pathways differed for a given ecosystem type and soil depth according to the method used. The relevance of herbivore energy channel increased with soil depth due to higher contribution of root-feeders. Ectoparasites, sedentary parasites and epidermal cell and root hair feeders were the most important contributors to the total biomass and metabolic footprints of herbivores. Metabolic footprint method revealed the general dominance of bacterial-based energy channel in all five types of ecosystems. The influence of altitude and climatic factors on percentages of abundance, biomass and metabolic footprints of herbivores, bacterivores and fungivores decreased with soil depth, whereas the influence of humus content, cation-exchange capacity and base saturation increased. Vegetation, altitude, climate and soil physico-chemical characteristics are important factors that influenced the abundance, biomass and metabolic footprints of herbivores, bacterivores and fungivores. Nature Publishing Group 2015-12-01 /pmc/articles/PMC4664958/ /pubmed/26620189 http://dx.doi.org/10.1038/srep17606 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Ciobanu, Marcel
Popovici, Iuliana
Zhao, Jie
Stoica, Ilie-Adrian
Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title_full Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title_fullStr Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title_full_unstemmed Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title_short Patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in Romania
title_sort patterns of relative magnitudes of soil energy channels and their relationships with environmental factors in different ecosystems in romania
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4664958/
https://www.ncbi.nlm.nih.gov/pubmed/26620189
http://dx.doi.org/10.1038/srep17606
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