Long-term phenology data for 47 tundra plant species at 19 high-latitude sites, 1992-2017

Warmer temperatures are accelerating the phenology of organisms around the world. Temperature sensitivity of phenology might be greater in colder, higher-latitude sites than in warmer regions, in part because small changes in temperature constitute greater relative changes in thermal balance at colder sites. To test this hypothesis, we examined up to 20 years of phenology data for 47 tundra plant species at 19 high-latitude sites along a climatic gradient. Across all species, the timing of leaf emergence and flowering were more sensitive to a given increase in summer temperature at colder than warmer high-latitude locations. A similar pattern was seen over time for the flowering phenology of a widespread species, Cassiope tetragona. These are among the first results highlighting differential phenological responses of plants across a climatic gradient, and suggest the possibility of convergence in flowering times and therefore an increase in gene flow across latitudes as the climate warms.

Identifier
Source https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=12722
Metadata Access http://www.polardata.ca/oai/provider?verb=GetRecord&metadataPrefix=fgdc&identifier=12722_fgdc
Provenance
Creator Rixen, Christian; Prevey, Janet; Bjorkman, Anne; Clark, Karin; Cooper, Elisabeth; Fosaa, Anna Maria; Henry, Greg; Hollister, Robert; Jónsdóttir, Ingibjörg Svala; Klanderud, Kari; Lévesque, Esther; Mauritz, Marguerite; Molau, Ulf; Myers-Smith, Isla; Natali, Susan; Oberbauer, Steven; Post, Eric; Schmidt, Neils Martin; Shuur, Ted; Welker, Jeffrey
Publisher Canadian Cryospheric Information Network
Contributor Polar Data Catalogue
Publication Year 2018
Rights Research programs, CCIN, or ArcticNet take no liability for the use or transmission of this data
OpenAccess true
Contact janet.prevey(at)gmail.com; pdc(at)uwaterloo.ca
Representation
Language English
Format Computer file
Discipline Environmental Research
Spatial Coverage (-157.000W, 61.000S, 18.480E, 81.400N)
Temporal Coverage Begin 1992-05-18T00:00:00Z
Temporal Coverage End 2017-07-23T00:00:00Z