These data were collected in July 2010 for tussocks transplanted in 1980-82 in a reciprocal transplant experiment and harvested in 2011. Important variables are garden name, source population, and whether the tussocks were alive in 1983,1993,2009, and 2010.
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In 1980-1982, six transplant gardens were established along a latitudinal gradient in interior Alaska from Eagle Creek, AK, in the south to Prudhoe Bay, AK, in the north (Shaver et al. 1986) .Three sites, Toolik Lake (TL), Sagwon (SAG), and Prudhoe Bay (PB) are north of the continental divide and the remaining three, Eagle Creek (EC), No Name Creek (NN), and Coldfoot (CF), are south of the continental divide. Each garden consisted of 10 individual tussocks transplanted back to their home-site, as well as 10 individuals from each of the other transplant sites (n = 10; 6 populations x 6 sites x 10 replicates = 360 total individuals).
All gardens were censused in 1983, 1993, and 2010. All gardens except Prudhoe Bay were censused in 2009. At each census, tussocks were counted as alive if there was at least one surviving tiller (Bennington et al. 2012)
Bennington CC, Fetcher N, Vavrek MC, Shaver GR, Cummings KJ, McGraw JB (2012) Home site advantage in two long-lived arctic plant species: results from two 30-year reciprocal transplant studies. Journal of Ecology 100:841-851
Shaver GR, Fetcher N, Chapin FS (1986) Growth and flowering in Eriophorum vaginatum - Annual and latitudinal variation. Ecology 67:1524-1535
Funding for this research was provided by National Science Foundation grant ARC-0908936 with additional support from NSF-BSR-9024188.
Survival data are incorporated in Bennington et al. 2012