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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2020
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| Materias: | |
| Acceso en línea: | https://doi.org/10.1594/PANGAEA.928950 |
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| _version_ | 1867171873525071872 |
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| author | Nagelkerken, Ivan Goldenberg, Silvan Urs Ferreira, Camilo M Ullah, Hadayet Connell, Sean D |
| author_facet | Nagelkerken, Ivan Goldenberg, Silvan Urs Ferreira, Camilo M Ullah, Hadayet Connell, Sean D |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | As human activities intensify, the structures of ecosystems and their food webs often reorganize. Through the study of mesocosms harboring a diverse benthic coastal community, we reveal that food web architecture can be inflexible under ocean warming and acidification and unable to compensate for the decline or proliferation of taxa. Key stabilizing processes, including functional redundancy, trophic compensation, and species substitution, were largely absent under future climate conditions. A trophic pyramid emerged in which biomass expanded at the base and top but contracted in the center. This structure may characterize a transitionary state before collapse into shortened, bottom-heavy food webs that characterize ecosystems subject to persistent abiotic stress. We show that where food web architecture lacks adjustability, the adaptive capacity of ecosystems to global change is weak and ecosystem degradation likely. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_928950 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and food web composition, productivity, and trophic architecture Nagelkerken, Ivan Goldenberg, Silvan Urs Ferreira, Camilo M Ullah, Hadayet Connell, Sean D Abbreviation; Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon; Carbon, inorganic, dissolved; Carbon, standard error; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Comment; Community composition and diversity; Dry mass; Effects sizes; Energy flow; Entire community; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Functional group; Growth/Morphology; Laboratory experiment; Mesocosm label; Mesocosm or benthocosm; Net community production of oxygen; Nitrogen; Nitrogen, standard error; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Ratio; Rocky-shore community; Salinity; Salinity, standard deviation; SARDI; South Pacific; Taxon/taxa; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Trophic level description; Type; Wet mass; Wet mass production; δ13C; δ13C, standard error; δ15N; δ15N, standard error As human activities intensify, the structures of ecosystems and their food webs often reorganize. Through the study of mesocosms harboring a diverse benthic coastal community, we reveal that food web architecture can be inflexible under ocean warming and acidification and unable to compensate for the decline or proliferation of taxa. Key stabilizing processes, including functional redundancy, trophic compensation, and species substitution, were largely absent under future climate conditions. A trophic pyramid emerged in which biomass expanded at the base and top but contracted in the center. This structure may characterize a transitionary state before collapse into shortened, bottom-heavy food webs that characterize ecosystems subject to persistent abiotic stress. We show that where food web architecture lacks adjustability, the adaptive capacity of ecosystems to global change is weak and ecosystem degradation likely. |
| title | Seawater carbonate chemistry and food web composition, productivity, and trophic architecture |
| topic | Abbreviation; Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon; Carbon, inorganic, dissolved; Carbon, standard error; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Comment; Community composition and diversity; Dry mass; Effects sizes; Energy flow; Entire community; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Functional group; Growth/Morphology; Laboratory experiment; Mesocosm label; Mesocosm or benthocosm; Net community production of oxygen; Nitrogen; Nitrogen, standard error; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Ratio; Rocky-shore community; Salinity; Salinity, standard deviation; SARDI; South Pacific; Taxon/taxa; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Trophic level description; Type; Wet mass; Wet mass production; δ13C; δ13C, standard error; δ15N; δ15N, standard error |
| url | https://doi.org/10.1594/PANGAEA.928950 |