Additional datasets (in progress)
The following datasets are part of NECTAR:
(1) Concord, Massachusetts - 1851 to 2006 (shared courtesy of Richard Primack)
Notes: Please contact Abraham Miller-Rushing (firstname.lastname@example.org) or Richard Primack (email@example.com) before using these data.
For supporting information, please see Miller-Rushing and Primack (2008).
The 2003 flowering data is not accurate estimates of first flowering as we were learning the locations of plant species and often found species when they were in full flower or even past full flower.
Cite data as: Miller-Rushing, A.J. and R.B. Primack. 2008. Global warming and flowering times in Thoreau's Concord: a community perspective. Ecology 89: 332-341.
(2) First-flowering dates of plants in the Northern Great Plains (1910-1961 and 2007-2012)
Earlier data published at Ecological Archives (Ecology 90:2332): E090-162-D1 by Steven E. Travers and Kelsey L. Dunnell in 2009.
(3) Data collected by David Inouye in Gothic, Colorado (1975-2009). See:
Inouye, D. W. Effects of climate change on phenology, frost damage, and floral abundance of montane wildflowers. Ecology 89(2), 353â362 (2008).
(4) First flowering dates recorded by farmer Gunnar Johansson between 1934-2006
25 species growing in and around his garden (About half of the species are wild and the other half considered garden plants). The data has been transformed to Julian days and entered by Kjell Bolmgren.
(5) Marsham data (1736-1958). See:
Sparks, T. H. and Carey, P. D. The responses of species to climate over two centuries - an analysis of the Marsham phenological record, 1736-1947. Journal of Ecology 83(2), 321â329 (1995).
(6) Data from Mohonk Lake, New York (1928-2002).
All records listed in Table I were digitized from notecard observations taken by observers at Mohonk Lake over the years. Observations were made along predetermined routes and at speciï¬c locations. This methodology helped reduce observer bias or error. Following digitizing, the original notecard records were rechecked and problematic observations were dropped if they clearly exceeded the range of phenological variability of the species in question (the 3-sigma rule). Finally, for this analysis, we also only retained records for which at least 24 observations (years) were available to ensure a reasonable level of signiï¬cance in our statistical analysis.
Cook, B. I., Cook, E. R., Huth, P. C., Thompson, J. E., Forster, A., and Smiley, D. Across-taxa phenological dataset from Mohonk Lake, NY and its relationship to climate. International Journal of Climatology 28(10), 1369â1383 (2008).
(7) Data from University of Milwaukee Field Station (2000-2009, courtesy of M. D. Schwartz)
UWMFS location: 43.387 Â°N, 88.023 Â°W
Web page: http://www4.uwm.edu/fieldstation/
bb50mdoy is mean day of year among the individuals of that species that 50% of buds on the tree that have broken open, revealing leaves.
l75mdoy is the mean day of year among the individuals of that species that 75% of leaves on the tree are at least 75% of their total size.
l95mdoy is the mean day of year among the individuals of that species that 95% of leaves on the tree are at least 95% of their total size.
Schwartz, M. D. and Hanes, J. M. Intercomparing multiple measures of the onset of spring in eastern North America. International Journal of Climatology 30(11), 1614â1626 (2010).
(8) Spring flowering records from Washington, DC area.
Data available at: http://botany.si.edu/dcflora/springflowers/index.htm
And additionally extracted from: Abu-Asab, M. S., Peterson, P. M., Shetler, S. G., and Orli, S. S. Earlier plant flowering in spring as a response to global warming in the Washington, DC, area. Biodiversity and Conservation 10(4), 597â612 (2001).