Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite
Aim: Tundra ecosystems are highly vulnerable to climate change and climate-growth responses of Arctic shrubs are variable and altered by microsite environmental conditions and biotic factors. With warming and drought during the growing season, insect-driven defoliation is expected to increase in fre...
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Online Access: | http://hdl.handle.net/10255/dryad.217042 https://doi.org/10.5061/dryad.36kj534 |
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ftdryad:oai:v1.datadryad.org:10255/dryad.217042 2023-05-15T14:58:12+02:00 Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite Prendin, Angela Luisa Carrer, Marco Karami, Mojtaba Hollesen, Jørgen Bjerregaard Pedersen, Nanna Pividori, Mario Treier, Urs A. Westergaard-Nielsen, Andreas Elbering, Bo Normand, Signe Nuuk Fjord West Greenland 2019-07-08T16:48:39Z http://hdl.handle.net/10255/dryad.217042 https://doi.org/10.5061/dryad.36kj534 unknown doi:10.5061/dryad.36kj534/1 doi:10.1111/jbi.13644 doi:10.5061/dryad.36kj534 Prendin AL, Carrer M, Karami M, Hollesen J, Bjerregaard Pedersen N, Pividori M, Treier UA, Westergaard-Nielsen A, Elberling B, Normand S (2019) Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite. Journal of Biogeography. http://hdl.handle.net/10255/dryad.217042 Arctic tundra cell wall thickness hydraulic diameter insect outbreaks NDVI quantitative wood anatomy remote sensing ring width Article 2019 ftdryad https://doi.org/10.5061/dryad.36kj534 https://doi.org/10.5061/dryad.36kj534/1 https://doi.org/10.1111/jbi.13644 2020-01-01T16:28:50Z Aim: Tundra ecosystems are highly vulnerable to climate change and climate-growth responses of Arctic shrubs are variable and altered by microsite environmental conditions and biotic factors. With warming and drought during the growing season, insect-driven defoliation is expected to increase in frequency and severity with potential broad-scale impacts on tundra ecosystem functioning. Here we provide the first broad-scale reconstruction of spatiotemporal dynamics of past insect outbreaks by assessing their effects on shrub growth along a typical Greenlandic fjord climate gradient from the inland ice to the sea. Location: Nuuk Fjord (64°30′N/51°23′W) and adjacent areas, West Greenland. Taxa: Great brocade (Eurois occulta L.) and grey willow (Salix glauca L.). Methods: We combined dendro-anatomical and remote sensing analyses. Time series of ring width and wood-anatomical traits were obtained from chronologies of > 40 years established from 153 individuals of S. glauca collected at nine sites. We detected anomalies in satellite-based Normalized Difference Vegetation Index (NDVI) related to defoliation and reconstructed past changes in photosynthetic activity across the region. Results: We identified outbreaks as distinctive years with reduced ring width, cell-wall thickness and vessel size, without being directly related to climate but matching with years of parallel reduction in NDVI. The two subsequent years after the defoliation showed a significant increase in ring width. The reconstructed spatiotemporal dynamics of these events indicate substantial regional variation in outbreak intensity linked to the climate variability across the fjord system. Main conclusions: Our results highlight the ability of S. glauca to cope with severe insect defoliation by changing carbon investment and xylem conductivity leading to high resilience and rapid recovery after the disturbance. Our multi-proxy approach allows us to pin-point biotic drivers of narrow ring formation and to provide new broad-scale insight on the C-budget and vegetation productivity of shrub communities in a widespread arctic ecosystem Article in Journal/Newspaper Arctic Climate change Greenland greenlandic Nuuk Tundra Dryad Digital Repository (Duke University) Arctic Greenland Nuuk ENVELOPE(-52.150,-52.150,68.717,68.717) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Arctic tundra cell wall thickness hydraulic diameter insect outbreaks NDVI quantitative wood anatomy remote sensing ring width |
spellingShingle |
Arctic tundra cell wall thickness hydraulic diameter insect outbreaks NDVI quantitative wood anatomy remote sensing ring width Prendin, Angela Luisa Carrer, Marco Karami, Mojtaba Hollesen, Jørgen Bjerregaard Pedersen, Nanna Pividori, Mario Treier, Urs A. Westergaard-Nielsen, Andreas Elbering, Bo Normand, Signe Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
topic_facet |
Arctic tundra cell wall thickness hydraulic diameter insect outbreaks NDVI quantitative wood anatomy remote sensing ring width |
description |
Aim: Tundra ecosystems are highly vulnerable to climate change and climate-growth responses of Arctic shrubs are variable and altered by microsite environmental conditions and biotic factors. With warming and drought during the growing season, insect-driven defoliation is expected to increase in frequency and severity with potential broad-scale impacts on tundra ecosystem functioning. Here we provide the first broad-scale reconstruction of spatiotemporal dynamics of past insect outbreaks by assessing their effects on shrub growth along a typical Greenlandic fjord climate gradient from the inland ice to the sea. Location: Nuuk Fjord (64°30′N/51°23′W) and adjacent areas, West Greenland. Taxa: Great brocade (Eurois occulta L.) and grey willow (Salix glauca L.). Methods: We combined dendro-anatomical and remote sensing analyses. Time series of ring width and wood-anatomical traits were obtained from chronologies of > 40 years established from 153 individuals of S. glauca collected at nine sites. We detected anomalies in satellite-based Normalized Difference Vegetation Index (NDVI) related to defoliation and reconstructed past changes in photosynthetic activity across the region. Results: We identified outbreaks as distinctive years with reduced ring width, cell-wall thickness and vessel size, without being directly related to climate but matching with years of parallel reduction in NDVI. The two subsequent years after the defoliation showed a significant increase in ring width. The reconstructed spatiotemporal dynamics of these events indicate substantial regional variation in outbreak intensity linked to the climate variability across the fjord system. Main conclusions: Our results highlight the ability of S. glauca to cope with severe insect defoliation by changing carbon investment and xylem conductivity leading to high resilience and rapid recovery after the disturbance. Our multi-proxy approach allows us to pin-point biotic drivers of narrow ring formation and to provide new broad-scale insight on the C-budget and vegetation productivity of shrub communities in a widespread arctic ecosystem |
format |
Article in Journal/Newspaper |
author |
Prendin, Angela Luisa Carrer, Marco Karami, Mojtaba Hollesen, Jørgen Bjerregaard Pedersen, Nanna Pividori, Mario Treier, Urs A. Westergaard-Nielsen, Andreas Elbering, Bo Normand, Signe |
author_facet |
Prendin, Angela Luisa Carrer, Marco Karami, Mojtaba Hollesen, Jørgen Bjerregaard Pedersen, Nanna Pividori, Mario Treier, Urs A. Westergaard-Nielsen, Andreas Elbering, Bo Normand, Signe |
author_sort |
Prendin, Angela Luisa |
title |
Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
title_short |
Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
title_full |
Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
title_fullStr |
Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
title_full_unstemmed |
Data from: Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite |
title_sort |
data from: immediate and carry-over effects of insect outbreaks on vegetation growth in west greenland assessed from cells to satellite |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.217042 https://doi.org/10.5061/dryad.36kj534 |
op_coverage |
Nuuk Fjord West Greenland |
long_lat |
ENVELOPE(-52.150,-52.150,68.717,68.717) |
geographic |
Arctic Greenland Nuuk |
geographic_facet |
Arctic Greenland Nuuk |
genre |
Arctic Climate change Greenland greenlandic Nuuk Tundra |
genre_facet |
Arctic Climate change Greenland greenlandic Nuuk Tundra |
op_relation |
doi:10.5061/dryad.36kj534/1 doi:10.1111/jbi.13644 doi:10.5061/dryad.36kj534 Prendin AL, Carrer M, Karami M, Hollesen J, Bjerregaard Pedersen N, Pividori M, Treier UA, Westergaard-Nielsen A, Elberling B, Normand S (2019) Immediate and carry-over effects of insect outbreaks on vegetation growth in West Greenland assessed from cells to satellite. Journal of Biogeography. http://hdl.handle.net/10255/dryad.217042 |
op_doi |
https://doi.org/10.5061/dryad.36kj534 https://doi.org/10.5061/dryad.36kj534/1 https://doi.org/10.1111/jbi.13644 |
_version_ |
1766330293630795776 |