Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study
A strong temperature increase in the Arctic is expected to lead to latitudinal treeline shift. This tundra-taiga turnover would cause a positive vegetation-climate feedback due to albedo decrease. However, reliable estimates of tree migration rates are currently lacking due to the complex processes...
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/44920 2024-02-11T09:54:56+01:00 Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study Kruse, Stefan Gerdes, Alexander Kath, Nadja J. Epp, Laura S. Stoof-Leichsenring, Kathleen R. Pestryakova, Luidmila A. Herzschuh, Ulrike 2019 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-2-timwvz0c7bea8 https://doi.org/10.5194/bg-2018-267 eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-2-timwvz0c7bea8 http://dx.doi.org/10.5194/bg-2018-267 1697251064 http://creativecommons.org/licenses/by/4.0/ Biogeosciences Discussions. 2019, 16, pp. 1211-1224. ISSN 1810-6277. eISSN 1810-6285. Available under: doi:10.5194/bg-2018-267 ddc:570 doc-type:article doc-type:Text 2019 ftubkonstanz https://doi.org/10.5194/bg-2018-267 2024-01-21T23:57:26Z A strong temperature increase in the Arctic is expected to lead to latitudinal treeline shift. This tundra-taiga turnover would cause a positive vegetation-climate feedback due to albedo decrease. However, reliable estimates of tree migration rates are currently lacking due to the complex processes involved in forest establishment, which depend strongly on seed dispersal. We aim to fill this gap using LAVESI, an individual-based and spatially explicit Larix vegetation simulator. LAVESI was designed to simulate plots within homogeneous forests. Here, we improve the implementation of the seed dispersal function via field-based investigations. We inferred the effective seed dispersal distances of a typical open forest stand on the southern Taymyr Peninsula (north-central Siberia) from genetic parentage analysis using eight highly polymorphic nuclear microsatellite loci. The parentage analysis gives effective seed dispersal distances (median ~10m) close to the seed parents. A comparison between simulated and observed effective seed dispersal distances reveals an overestimation of recruits close to the releasing tree and a shorter dispersal distance generally. We thus adapted our model and used it to simulate south-to-north transects: a slow-moving treeline front was revealed. The colonisation of the tundra areas was assisted by occasional long-distance seed dispersal events beyond the treeline area. The treeline(~1treeha −1 ) advanced by ~1.6myr −1 , whereas the forest line (~100treesha −1 ) advanced by only ~0.6myr −1 . We conclude that the treeline in north-central Siberia currently lags behind the current strong warming and will continue to lag in the near future. published published Article in Journal/Newspaper albedo Arctic taiga Taymyr Taymyr Peninsula Tundra Siberia KOPS - The Institutional Repository of the University of Konstanz Arctic Taymyr ENVELOPE(89.987,89.987,68.219,68.219) |
institution |
Open Polar |
collection |
KOPS - The Institutional Repository of the University of Konstanz |
op_collection_id |
ftubkonstanz |
language |
English |
topic |
ddc:570 |
spellingShingle |
ddc:570 Kruse, Stefan Gerdes, Alexander Kath, Nadja J. Epp, Laura S. Stoof-Leichsenring, Kathleen R. Pestryakova, Luidmila A. Herzschuh, Ulrike Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
topic_facet |
ddc:570 |
description |
A strong temperature increase in the Arctic is expected to lead to latitudinal treeline shift. This tundra-taiga turnover would cause a positive vegetation-climate feedback due to albedo decrease. However, reliable estimates of tree migration rates are currently lacking due to the complex processes involved in forest establishment, which depend strongly on seed dispersal. We aim to fill this gap using LAVESI, an individual-based and spatially explicit Larix vegetation simulator. LAVESI was designed to simulate plots within homogeneous forests. Here, we improve the implementation of the seed dispersal function via field-based investigations. We inferred the effective seed dispersal distances of a typical open forest stand on the southern Taymyr Peninsula (north-central Siberia) from genetic parentage analysis using eight highly polymorphic nuclear microsatellite loci. The parentage analysis gives effective seed dispersal distances (median ~10m) close to the seed parents. A comparison between simulated and observed effective seed dispersal distances reveals an overestimation of recruits close to the releasing tree and a shorter dispersal distance generally. We thus adapted our model and used it to simulate south-to-north transects: a slow-moving treeline front was revealed. The colonisation of the tundra areas was assisted by occasional long-distance seed dispersal events beyond the treeline area. The treeline(~1treeha −1 ) advanced by ~1.6myr −1 , whereas the forest line (~100treesha −1 ) advanced by only ~0.6myr −1 . We conclude that the treeline in north-central Siberia currently lags behind the current strong warming and will continue to lag in the near future. published published |
format |
Article in Journal/Newspaper |
author |
Kruse, Stefan Gerdes, Alexander Kath, Nadja J. Epp, Laura S. Stoof-Leichsenring, Kathleen R. Pestryakova, Luidmila A. Herzschuh, Ulrike |
author_facet |
Kruse, Stefan Gerdes, Alexander Kath, Nadja J. Epp, Laura S. Stoof-Leichsenring, Kathleen R. Pestryakova, Luidmila A. Herzschuh, Ulrike |
author_sort |
Kruse, Stefan |
title |
Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
title_short |
Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
title_full |
Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
title_fullStr |
Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
title_full_unstemmed |
Dispersal distances and migration rates at the arctic treeline in Siberia : a genetic and simulation based study |
title_sort |
dispersal distances and migration rates at the arctic treeline in siberia : a genetic and simulation based study |
publishDate |
2019 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-timwvz0c7bea8 https://doi.org/10.5194/bg-2018-267 |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Arctic Taymyr |
geographic_facet |
Arctic Taymyr |
genre |
albedo Arctic taiga Taymyr Taymyr Peninsula Tundra Siberia |
genre_facet |
albedo Arctic taiga Taymyr Taymyr Peninsula Tundra Siberia |
op_source |
Biogeosciences Discussions. 2019, 16, pp. 1211-1224. ISSN 1810-6277. eISSN 1810-6285. Available under: doi:10.5194/bg-2018-267 |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-timwvz0c7bea8 http://dx.doi.org/10.5194/bg-2018-267 1697251064 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5194/bg-2018-267 |
_version_ |
1790609721701433344 |