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Callaghan, Terry V; Christensen, Torben R; Jantzen, Elin J (2011): Plant frequency and cover abundance at three sites on Disko Island in 1967/1970 and 2009 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.808157, Supplement to: Callaghan, TV et al. (2011): Plant and Vegetation Dynamics on Disko Island, West Greenland: Snapshots Separated by Over 40 Years. AMBIO, 40(6), 624-637, https://doi.org/10.1007/s13280-011-0169-x

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Abstract:
We report on a revisit in 2009 to sites where vegetation was recorded in 1967 and 1970 on Disko Island, West Greenland. Re-sampling of the same clones of the grass Phleum alpinum after 39 years showed complete stability in biometrics but dramatic earlier onset of various phenological stages that were not related to changes in population density. In a fell-field community, there was a net species loss, but in a herb-slope community, species losses balanced those that were gained. The type of species establishing and increasing in frequency and/or cover abundance at the fell-field site, particularly prostrate dwarf shrubs, indicates a possible start of a shift towards a heath, rather than a fell-field community. At the herb-slope site, those species that established or increased markedly in frequency and/or cover abundance indicate a change to drier conditions. This is confirmed both by the decrease in abundance of Alchemilla glomerulans and Epilobium hornemanii, and the drying of a nearby pond. The causes of these changes are unknown, although mean annual temperature has risen since 1984.
Project(s):
International Polar Year (2007-2008) (IPY)
Coverage:
Median Latitude: 69.259385 * Median Longitude: -53.523154 * South-bound Latitude: 69.257800 * West-bound Longitude: -53.533480 * North-bound Latitude: 69.262380 * East-bound Longitude: -53.519800
Date/Time Start: 1967-01-01T00:00:00 * Date/Time End: 2009-01-01T00:00:00
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Table 2) Biometric characteristics of Phleum alpinum at Lyngmarksbugt (Godhavn) on Disko Island. https://doi.org/10.1594/PANGAEA.808156
  2. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Table 1) Characteristics of three study sites at Qeqertarssuaq (Godhavn) on Disko Island. https://doi.org/10.1594/PANGAEA.808155
  3. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Supplement Table 3) Percentage cover abundance of plants recorded at the Fell-field Site on Disko Island. https://doi.org/10.1594/PANGAEA.808152
  4. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Supplement Table 2) Percentage frequency of plants recorded at the Fell-field Site on Disko Island. https://doi.org/10.1594/PANGAEA.808151
  5. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Supplement Table 5) Percentage cover abundance of plants recorded at the Primary Site on Disko Island. https://doi.org/10.1594/PANGAEA.808154
  6. Callaghan, TV; Christensen, TR; Jantzen, EJ (2011): (Supplement Table 4) Percentage frequency of plants recorded at the Primary Site on Disko Island. https://doi.org/10.1594/PANGAEA.808153