Abstract:
This dataset contains annual growth time series for 296 tundra shrubs belonging to 7 species (Salix and Betula genera) collected at the following sites in Northern Canada: Qikiqtaruk-Herschel Island (Yukon Territory), Kluane region (Yukon Territory), Umiujaq (Quebec) and Salluit (Quebec). Each individual time series (raw measurements) is presented along with the species and canopy size of the corresponding shrub.
Funding was provided by the NERC grant NE/M016323/1.
Keywords:
dendroecology, secondary growth, shrubs, time series, tundra, vegetation
Angers-Blondin, S., & Myers-Smith, I. (2019). Radial growth of tundra shrubs (1990-2014) at four sites in Northern Canada (Yukon, Quebec) (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/1705eba3-f4eb-4958-8e10-eed5e558ec10
| Access Constraints: | No restrictions apply. |
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| Use Constraints: | This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions: Please contact authors before publishing the data. Please use the following acknowledgements when using/publishing the data from Qikiqtaruk: "We thank the Herschel Island-Qikiqtaruk Territorial Park, Isla Myers-Smith, Cameron Eckert, Richard Gordon, Catherine Kennedy, Dorothy Cooley, and Dr. Jill F. Johnstone for establishing and maintaining the phenology and composition data from Qikiqtaruk. We thank Haydn J.D. Thomas, Meagan M. Grabowski, Sandra Angers-Blondin, Gergana N. Daskalova, Jakob J. Assmann for assisting with the collection and compilation of the data. We thank rangers including Edward McLeod, Samuel McLeod, Ricky Joe, Paden Lennie, Deon Arey, LeeJohn Meyook, Jordan McLeod, Pierre Foisy, Colin Gordon, Jeremy Hansen, Albert Rufus and field assistants including Santeri Lehtonen, William Palmer, Louise Beveridge, Clara Flintrop, John Godlee, Eleanor Walker, Joseph Boyle, Catherine Henry and Anika Trimble. Funding for data collection was provided by Herschel Island-Qikiqtaruk Territorial Park and the UK Natural Environment Research Council ShrubTundra Grant (NE/M016323/1). We thank the Inuvialuit People for the opportunity to collect these data on their traditional lands." |
| Creation Date: | 2018-07-13 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Sandra Angers-Blondin |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of Edinburgh |
| Name | Isla Myers-Smith |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of Edinburgh |
| Name | Haydn Thomas |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Gergana Daskalova |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Jakob Assmann |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Santeri Lehtonen |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Name | Clara Morrissette-Boileau |
| Role(s) | Investigator |
| Organisation | Universite Laval |
| Name | Marc-Andre Lemay |
| Role(s) | Investigator |
| Organisation | Universite Laval |
| Name | Marianne Caouette |
| Role(s) | Investigator |
| Organisation | Universite Laval |
| Name | Joe Boyle |
| Role(s) | Investigator |
| Organisation | University of Edinburgh |
| Parent Dataset: | N/A |
| Reference: | Myers-Smith et al. (2019). Eighteen years of ecological monitoring reveals multiple lines of evidence for tundra vegetation change. Ecological Monographs. 10.1002/ecm.1351. Dissertation Sandra Angers-Blondin. |
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| Quality: | Samples that could not be cross-sectioned or measured reliably (rotten core, heavy wedging/lobing) were not included in the dataset. Remaining samples have an average inter-radii correlation of ca. 75%. | |
| Lineage: | Wood samples were collected in the summer 2015 during an expedition to the four field sites. At each site, square plots ranging from 25 m2 to 100 m2 were established. All shrubs taller than 10 cm within these plots were sampled at the root collar and cross-sectioned with a sledge microtome. Sample preparation and analysis followed procedures described by Myers-Smith et al. 2015 (Earth-Science Reviews). Annual growth rings were measured for the period 1990-2014. The measurements presented are an average of 2-4 radii per individual and represent raw ring width, measured in micrometers. The coordinates given are the corners of a box encompassing all plots at a given site. Kluane: (60.9585, -138.4202), (60.9585, -138.2698), (61.2213, -138.4202), (61.2213, -138.2698) / Qikiqtaruk: (69.5702, -138.9457), (69.5702,-138.8649), (69.5801,-138.9457), (69.5801, -138.8649) / Umiujaq: (56.5321, -76.5420), (56.5321,-76.4769), (56.5725,-76.5420), (56.5725,-76.4769) / Salluit: (62.1802, -75.6774), (62.1802, -75.6460), (62.1982, -75.6774), (62.1982,-75.6460) Column definitions: Height is the maximum height of the shrub. Width1 is the longest width of the shrub and width2 is the width perpendicular to the first width. Longer time-series from the circumpolar region (up to 2009) can be found at the ShrubRingHub : https://github.com/ShrubHub/ShrubringHub |
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| Temporal Coverage: | |
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| Start Date | 1990-01-01 |
| End Date | 2014-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 56.5321 |
| Northernmost | 69.5801 |
| Longitude | |
| Westernmost | -138.9457 |
| Easternmost | -75.646 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Arctic |
| Detailed Location | Northern Canada - Yukon Territory and Quebec |
| Data Collection: | A sledge microtome was used to section the samples. Ring width was measured with the ImageJ software and the ObjectJ plugin (https://sils.fnwi.uva.nl/bcb/objectj/) |
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| Data Storage: | The data is in CSV format and is approximately 400 kB. |
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