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Impact of global warming on a group of related species and their hybrids: Cherry tree (Rosaceae) flowering at Mt. Takao, Japan

Title
Impact of global warming on a group of related species and their hybrids: Cherry tree (Rosaceae) flowering at Mt. Takao, Japan
Authors
Miller-Rushing A.J.Katsuki T.Primack R.B.Ishii Y.Sang D.L.Higuchi H.
Ewha Authors
이상돈
SCOPUS Author ID
이상돈scopus
Issue Date
2007
Journal Title
American Journal of Botany
ISSN
0002-9122JCR Link
Citation
vol. 94, no. 9, pp. 1470 - 1478
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Climate change is affecting plant phenology worldwide. Phenological responses vary among species, but it is not clear how responses differ among closely related species. We examined a 25-yr record (1981-2005) of flowering times for 97 trees, representing 17 species and hybrids of cherry (Cerasus sp. or Prunus sp.) grown at Mt. Takao, in Tokyo, Japan. The cherry trees flowered earlier over time, by an average of 5.5 d over the 25-yr study. Earlier flowering was explained largely by a 1.8°C increase in February-March mean monthly temperatures. Most species and hybrids flowered 3-5 d earlier for each 1°C increase in temperature, but early-flowering taxa flowered as much as 9 d earlier for each 1°C increase in temperature. Flowering durations and differences in flowering times among species were greater in warm years than in cold years. Species and individual trees also flowered longer in warm years. These results show that the flowering times of closely related species may change similarly in response to climate change, but that early-flowering species may diverge from the overall trend in a predictable way. Such changes in flowering may affect gene flow and pollination as the length of the flowering season increases.
DOI
10.3732/ajb.94.9.1470
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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