Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils
The Antarctic continent hosts life forms specially adapted to the extreme climatic challenges. Among these organisms are nematodes, key organisms in the cycling of nutrients in soil food webs. These organisms are bioindicators of environmental disturbances, making their study essential for assessing...
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| Format: | Artículo |
| Language: | Inglés |
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Springer
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/16589 https://link.springer.com/article/10.1007/s00300-023-03211-y https://doi.org/10.1007/s00300-023-03211-y |
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| author | Salas, Augusto Fusaro, Bruno Rusconi, José Matías Rosales, Matías Balcazar, Dario Emmanuel Achinelly, María Fernanda Chaves, Eliseo Sauka, Diego Hernan Ruberto, Lucas Ansaldo, Martín |
| author_browse | Achinelly, María Fernanda Ansaldo, Martín Balcazar, Dario Emmanuel Chaves, Eliseo Fusaro, Bruno Rosales, Matías Ruberto, Lucas Rusconi, José Matías Salas, Augusto Sauka, Diego Hernan |
| author_facet | Salas, Augusto Fusaro, Bruno Rusconi, José Matías Rosales, Matías Balcazar, Dario Emmanuel Achinelly, María Fernanda Chaves, Eliseo Sauka, Diego Hernan Ruberto, Lucas Ansaldo, Martín |
| author_sort | Salas, Augusto |
| collection | INTA Digital |
| description | The Antarctic continent hosts life forms specially adapted to the extreme climatic challenges. Among these organisms are nematodes, key organisms in the cycling of nutrients in soil food webs. These organisms are bioindicators of environmental disturbances, making their study essential for assessing the impact of human activity in this unique ecosystem. The Carlini Station and the Antarctic Specially Protected Area 132 on the 25 de Mayo/King George Island, Antarctica, has seen limited investigation of free-living soil nematodes. This study aimed to analyze free-living nematode communities in pristine soils and anthropic-intervened soils in the Carlini Station area. Nematodes were extracted from soil samples and morphologically identified at the genus and family levels to calculated ecological indices to assess nematode community structure. Ecological indices (abundance, maturity, enrichment, and soil food structure) were calculated and their values were compared between anthropic and pristine sites using the ANOSIM, SIMPER, and ANOVA statistical tests. Additionally, using molecular analysis, a phylogenetic study was conducted. The study identified four nematode genera, including Plectus spp., Calcaridorylaimus spp., Eudorylaimus spp., and Coomansus spp., with Plectus spp. being the most abundant and widely distributed. Anthropic sites had lower maturity and higher enrichment values, indicative of disturbance, while pristine sites exhibited higher maturity and structure values, suggesting a healthier soil food web. These results suggest that anthropic intervention disrupts nematode communities and represent a significant contribution to the understanding of free-living nematode communities in Antarctica. |
| format | Artículo |
| id | INTA16589 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA165892025-05-09T12:17:13Z Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils Salas, Augusto Fusaro, Bruno Rusconi, José Matías Rosales, Matías Balcazar, Dario Emmanuel Achinelly, María Fernanda Chaves, Eliseo Sauka, Diego Hernan Ruberto, Lucas Ansaldo, Martín Suelo Nematodos Antártida Soil Nematodes Antarctica Bioindicators Phylogenetic Analysis Maturity Index Plectus Soil Food Web The Antarctic continent hosts life forms specially adapted to the extreme climatic challenges. Among these organisms are nematodes, key organisms in the cycling of nutrients in soil food webs. These organisms are bioindicators of environmental disturbances, making their study essential for assessing the impact of human activity in this unique ecosystem. The Carlini Station and the Antarctic Specially Protected Area 132 on the 25 de Mayo/King George Island, Antarctica, has seen limited investigation of free-living soil nematodes. This study aimed to analyze free-living nematode communities in pristine soils and anthropic-intervened soils in the Carlini Station area. Nematodes were extracted from soil samples and morphologically identified at the genus and family levels to calculated ecological indices to assess nematode community structure. Ecological indices (abundance, maturity, enrichment, and soil food structure) were calculated and their values were compared between anthropic and pristine sites using the ANOSIM, SIMPER, and ANOVA statistical tests. Additionally, using molecular analysis, a phylogenetic study was conducted. The study identified four nematode genera, including Plectus spp., Calcaridorylaimus spp., Eudorylaimus spp., and Coomansus spp., with Plectus spp. being the most abundant and widely distributed. Anthropic sites had lower maturity and higher enrichment values, indicative of disturbance, while pristine sites exhibited higher maturity and structure values, suggesting a healthier soil food web. These results suggest that anthropic intervention disrupts nematode communities and represent a significant contribution to the understanding of free-living nematode communities in Antarctica. Instituto de Microbiología y Zoología Agrícola (IMYZA) Fil: Salas, Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Fusaro, Bruno. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Fusaro, Bruno. Universidad Nacional de La Plata. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Fusaro, Bruno. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Rusconi, José Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Rusconi, José Matías. Universidad Nacional de La Plata. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Rosales, Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Rosales, Matías. Universidad Nacional de La Plata. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Balcazar, Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Balcazar, Darío. Universidad Nacional de La Plata. Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Achinelly, Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Estudios Parasitológicos y de Vectores. ; Argentina Fil: Achinelly, Fernanda. Universidad Nacional de La Plata (UNLP). Centro de Estudios Parasitológicos y de Vectores; Argentina Fil: Chaves, Eliseo. Nema-Agris; Argentina Fil: Sauka, Diego Herman. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina Fil: Ruberto, Lucas. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina Fil: Ansaldo, Martín. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina 2024-02-14T12:32:02Z 2024-02-14T12:32:02Z 2024-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16589 https://link.springer.com/article/10.1007/s00300-023-03211-y 1432-2056 0722-4060 https://doi.org/10.1007/s00300-023-03211-y eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Polar Biology 47 : 73-83 (January 2024) |
| spellingShingle | Suelo Nematodos Antártida Soil Nematodes Antarctica Bioindicators Phylogenetic Analysis Maturity Index Plectus Soil Food Web Salas, Augusto Fusaro, Bruno Rusconi, José Matías Rosales, Matías Balcazar, Dario Emmanuel Achinelly, María Fernanda Chaves, Eliseo Sauka, Diego Hernan Ruberto, Lucas Ansaldo, Martín Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title | Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title_full | Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title_fullStr | Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title_full_unstemmed | Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title_short | Diversity and abundance of free-living nematodes from Carlini Station, 25 de Mayo/King George Island, Antarctica: a case study in pristine and disturbed soils |
| title_sort | diversity and abundance of free living nematodes from carlini station 25 de mayo king george island antarctica a case study in pristine and disturbed soils |
| topic | Suelo Nematodos Antártida Soil Nematodes Antarctica Bioindicators Phylogenetic Analysis Maturity Index Plectus Soil Food Web |
| url | http://hdl.handle.net/20.500.12123/16589 https://link.springer.com/article/10.1007/s00300-023-03211-y https://doi.org/10.1007/s00300-023-03211-y |
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