title: Cranberry flowering times and climate change in southern Massachusetts.
abstract: Plants in wild and agricultural settings are being affected by the warmer temperatures associated with climate change. Here we examine the degree to which the iconic New England cranberry, Vaccinium macrocarpon, is exhibiting signs of altered flowering phenology. Using contemporary records from commercial cranberry bogs in southeastern Massachusetts in the United States, we found that cranberry plants are responsive to temperature. Flowering is approximately 2 days earlier for each 1 °C increase in May temperature. We also investigated the relationship between cranberry flowering and flight dates of the bog copper, Lycaena epixanthe-a butterfly dependent upon cranberry plants in its larval stage. Cranberry flowering and bog copper emergence were found to be changing disproportionately over time, suggesting a potential ecological mismatch. The pattern of advanced cranberry flowering over time coupled with increased temperature has implications not only for the relationship between cranberry plants and their insect associates but also for agricultural crops in general and for the commercial cranberry industry.
authors.affiliation: Department of Biology, Boston University, Boston, MA, 02215, USA, ellwoodlibby@gmail.com.
authors.forename: Elizabeth R
authors.initials: ER
authors.lastname: Ellwood
authors.forename: Susan R
authors.initials: SR
authors.lastname: Playfair
authors.forename: Caroline A
authors.initials: CA
authors.lastname: Polgar
authors.forename: Richard B
authors.initials: RB
authors.lastname: Primack
mesh_terms: D057231:Climate Change; D035264:Flowers / Q000254:growth & development*; D008404:Massachusetts; D012621:Seasons; D029799:Vaccinium macrocarpon / Q000254:growth & development*
references.citation: Ecology. 2008 Feb;89(2):332-41
references.pmid: 18409423
references.citation: J Urol. 2012 Oct;188(4 Suppl):1584-7
references.pmid: 22910239
references.citation: Nature. 2003 Jan 2;421(6918):57-60
references.pmid: 12511952
references.citation: J Appl Microbiol. 2012 Aug;113(2):438-47
references.pmid: 22563853
references.citation: Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13379-81
references.pmid: 12370424
references.citation: Proc Biol Sci. 2010 Aug 22;277(1693):2451-7
references.pmid: 20375052
references.citation: PLoS One. 2013;8(1):e53788
references.pmid: 23342001
references.citation: Ecol Lett. 2009 Feb;12(2):184-95
references.pmid: 19049509
references.citation: Int J Biometeorol. 2013 May;57(3):367-75
references.pmid: 22744801
references.citation: Proc Natl Acad Sci U S A. 2011 Dec 20;108(51):20645-9
references.pmid: 22143794
references.citation: Int J Biometeorol. 2005 May;49(5):303-9
references.pmid: 15592880
references.citation: Nature. 2003 Jan 2;421(6918):37-42
references.pmid: 12511946
references.citation: Proc Natl Acad Sci U S A. 2008 Nov 4;105(44):17029-33
references.pmid: 18955707
references.citation: Am J Bot. 2004 Aug;91(8):1260-4
references.pmid: 21653483