The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket
A multiproxy approach was applied to a sediment core retrieved from the deep crater Lake Funda, located in the middle of the North Atlantic Ocean on Flores Island, Azores archipelago (Portugal). The purpose of this study was to determine how this ecosystem responded to natural and anthropogenic forc...
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Online Access: | https://www.vliz.be/imisdocs/publications/09/375609.pdf |
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ftnioz:oai:imis.nioz.nl:351435 2023-05-15T17:35:21+02:00 The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket Ritter, C. Gonçalves, V. Pla-Rabes, S. de Boer, E.J. Bao, R. Sáez, A. Hernandez, A. Sixto, M. Richter, N. Benavente, M. Prego, R. Giralt, S. Raposeiro, P.M.V.M. 2022 application/pdf https://www.vliz.be/imisdocs/publications/09/375609.pdf en eng info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.scitotenv.2022.154828 https://www.vliz.be/imisdocs/publications/09/375609.pdf info:eu-repo/semantics/openAccess %3Ci%3ESci.+Total+Environ.+830%3C%2Fi%3E%3A+154828.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scitotenv.2022.154828%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scitotenv.2022.154828%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftnioz https://doi.org/10.1016/j.scitotenv.2022.154828 2022-05-01T14:16:10Z A multiproxy approach was applied to a sediment core retrieved from the deep crater Lake Funda, located in the middle of the North Atlantic Ocean on Flores Island, Azores archipelago (Portugal). The purpose of this study was to determine how this ecosystem responded to natural and anthropogenic forces over the last millennium. We distinguished three main phases in lake evolution using multiproxy reconstructions and documentary sources. (A) Climate and lake catchment processes, as well as internal ones, were the main drivers of ecosystem variability before 1335 CE, when human disturbances were absent in the Lake Funda catchment. (B) The second phase is marked by unprecedented changes in all studied proxies between 1335 and 1560 CE, including abrupt changes in the composition and diversity of diatom and chironomid assemblages. Synergistic effects from high climate variability and the onset of human disturbances in the catchment (e.g., introduction of livestock) during the Medieval Climate Anomaly-Little Ice Age transition, led to an increase in lake trophic state from mesotrophic to eutrophic conditions. (C) In the last phase (1560 CE to the present), the eutrophic conditions in Lake Funda were maintained through a positive feedback loop between lake productivity and in-lake phosphorous recycling. Variability within the lake ecosystem was mainly associated with climate variability and internal lake dynamics (e.g., phosphorus remobilization). Our results show that a paleoecological approach is crucial to understanding lake ecological states in the present-day in order to develop locally adapted management and restoration strategies. A long-term perspective enables us to understand the harmful consequences of ongoing climate change and human disturbances on lake ecosystems. Article in Journal/Newspaper North Atlantic NIOZ Repository (Royal Netherlands Institute for Sea Research) Crater Lake ENVELOPE(-60.667,-60.667,-62.983,-62.983) Science of The Total Environment 830 154828 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
A multiproxy approach was applied to a sediment core retrieved from the deep crater Lake Funda, located in the middle of the North Atlantic Ocean on Flores Island, Azores archipelago (Portugal). The purpose of this study was to determine how this ecosystem responded to natural and anthropogenic forces over the last millennium. We distinguished three main phases in lake evolution using multiproxy reconstructions and documentary sources. (A) Climate and lake catchment processes, as well as internal ones, were the main drivers of ecosystem variability before 1335 CE, when human disturbances were absent in the Lake Funda catchment. (B) The second phase is marked by unprecedented changes in all studied proxies between 1335 and 1560 CE, including abrupt changes in the composition and diversity of diatom and chironomid assemblages. Synergistic effects from high climate variability and the onset of human disturbances in the catchment (e.g., introduction of livestock) during the Medieval Climate Anomaly-Little Ice Age transition, led to an increase in lake trophic state from mesotrophic to eutrophic conditions. (C) In the last phase (1560 CE to the present), the eutrophic conditions in Lake Funda were maintained through a positive feedback loop between lake productivity and in-lake phosphorous recycling. Variability within the lake ecosystem was mainly associated with climate variability and internal lake dynamics (e.g., phosphorus remobilization). Our results show that a paleoecological approach is crucial to understanding lake ecological states in the present-day in order to develop locally adapted management and restoration strategies. A long-term perspective enables us to understand the harmful consequences of ongoing climate change and human disturbances on lake ecosystems. |
format |
Article in Journal/Newspaper |
author |
Ritter, C. Gonçalves, V. Pla-Rabes, S. de Boer, E.J. Bao, R. Sáez, A. Hernandez, A. Sixto, M. Richter, N. Benavente, M. Prego, R. Giralt, S. Raposeiro, P.M.V.M. |
spellingShingle |
Ritter, C. Gonçalves, V. Pla-Rabes, S. de Boer, E.J. Bao, R. Sáez, A. Hernandez, A. Sixto, M. Richter, N. Benavente, M. Prego, R. Giralt, S. Raposeiro, P.M.V.M. The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
author_facet |
Ritter, C. Gonçalves, V. Pla-Rabes, S. de Boer, E.J. Bao, R. Sáez, A. Hernandez, A. Sixto, M. Richter, N. Benavente, M. Prego, R. Giralt, S. Raposeiro, P.M.V.M. |
author_sort |
Ritter, C. |
title |
The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
title_short |
The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
title_full |
The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
title_fullStr |
The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
title_full_unstemmed |
The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket |
title_sort |
vanishing and the establishment of a new ecosystem on an oceanic island – anthropogenic impacts with no return ticket |
publishDate |
2022 |
url |
https://www.vliz.be/imisdocs/publications/09/375609.pdf |
long_lat |
ENVELOPE(-60.667,-60.667,-62.983,-62.983) |
geographic |
Crater Lake |
geographic_facet |
Crater Lake |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.scitotenv.2022.154828 https://www.vliz.be/imisdocs/publications/09/375609.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2022.154828 |
container_title |
Science of The Total Environment |
container_volume |
830 |
container_start_page |
154828 |
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1766134490051117056 |