Earlier plant flowering in spring as a response to global warming in the Washington, DC, area
Source: Biodiversity and Conservation, Volume 10, Number 4, April 2001 , pp. 597-612(16)
Abstract:Evidence for global warming is inferred from spring advances in first-flowering in plants. The trend of average first-flowering times per year for the study group shows a significant advance of 2.4 days over a 30-year period. When 11 species that exhibit later first-flowering times are excluded from the data set, the remaining 89 show a significant advance of 4.5 days. Significant trends for earlier-flowering species range from -3.2 to -46 days, while those for later-flowering species range from +3.1 to +10.4 days. Advances of first-flowering in these 89 species are directly correlated with local increase in minimum temperature (T_min).
Document Type: Regular Paper
Affiliations: 1: Section of Ultrastructural Pathology, Laboratory of Pathology, National Cancer Institute, Bethesda, MD 20892, USA 2: Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0166, USA
Publication date: April 1, 2001