A new multi-proxy record of environmental change over the last 1000 years on Chiloé Island: Lake Pastahué, south-central Chile (42°S)/ (Record no. 12787)
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| fixed length control field | 02378nab a2200289 4500 |
| 005 - DATE & TIME | |
| control field | 20220812154826.0 |
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| fixed length control field | 220812b |||||||| |||| 00| 0 eng d |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Castro, J Max Troncoso |
| 245 ## - TITLE STATEMENT | |
| Title | A new multi-proxy record of environmental change over the last 1000 years on Chiloé Island: Lake Pastahué, south-central Chile (42°S)/ |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher, distributor, etc | sage |
| Date of publication, distribution, etc | 2019 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Pages | Vol 29, Issue 3, 2019 : ( 421-431 p.). |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Knowledge of past environmental and climatic conditions of lake ecosystems on Chiloé Island on a millennial scale is limited. Hence, this study fills a gap in our understanding of this part of southern Chile. The aim of this study was to reconstruct the environmental and climatic history of the last 1000 years of Lake Pastahué through a multi-proxy sediment core analysis. The 1-m-long core was subsampled every centimeter for the organic matter, magnetic susceptibility, grain-size distribution, and biological indicator (pollen, chironomids) analyses. The age model was constructed from 210Pb, 137Cs, and 14C activity. Pollen results revealed a North Patagonian forest composition represented by Nothofagus, Weinmannia, Drimys, Tepualia, Myrtaceae, Poaceae, and Pteridophyta. The abundance of Rumex and Pinus in the most recent part of the pollen assemblage reflects a clear anthropogenic impact. The sedimentological parameters and chironomid assemblage show similar variations, which highlight changes in the trophic state of the lake. The changes observed in all proxies suggest the influence of climate events such as the ‘Medieval Climate Anomaly’ (MCA) and ‘Little Ice Age’ (LIA). The variations observed since the beginning of the 20th century could be the result of the combined effect of anthropogenic activities and the increase in temperature recorded in south-central Chile and Patagonia. |
| 650 ## - Subject | |
| Subject | Chile, |
| 650 ## - Subject | |
| Subject | chironomids, |
| 650 ## - Subject | |
| Subject | last millennium, |
| 650 ## - Subject | |
| Subject | LIA, |
| 650 ## - Subject | |
| Subject | MCA, |
| 650 ## - Subject | |
| Subject | multi-proxy, |
| 650 ## - Subject | |
| Subject | pollen |
| 700 ## - Added Entry Personal Name | |
| Added Entry Personal Name | Vergara, Carolina |
| 700 ## - Added Entry Personal Name | |
| Added Entry Personal Name | Alvarez, Denisse |
| 773 0# - HOST ITEM ENTRY | |
| Host Biblionumber | 12756 |
| Host Itemnumber | 16504 |
| Place, publisher, and date of publication | London: Sage Publication Ltd, 2019. |
| Title | Holocene/ |
| International Standard Serial Number | 09596836 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://doi.org/10.1177/0959683618816492 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Articles |
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| 700 ## - Added Entry Personal Name | |
| -- | 51582 |
| 700 ## - Added Entry Personal Name | |
| -- | 51583 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| -- | ddc |
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