Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1006/jare.2000.0642 |
Does Ferocactus wislizeni (Cactaceae) have a between-year seed bank? | |
Bowers, JE | |
通讯作者 | Bowers, JE |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
出版年 | 2000 |
卷号 | 45期号:3页码:197-205 |
英文摘要 | Field and laboratory experiments at Tumamoc Hill, Tucson, Arizona, U.S.A., demonstrated that Ferocactus wislizeni, a common perennial cactus in the northern Sonoran Desert, has a between-year seed bank. In laboratory studies, F. wislizeni seeds lost dormancy during storage at room temperature and had a light requirement for germination. Field experiments suggested that as much as 2% of the annual seed crop might escape post-dispersal predation even when unprotected; where suitable safe sites exist, a higher percentage might escape. Germination of seed recovered monthly from above- and below-ground components of an artificial seed bank showed that seeds can survive at least 18 months in and on the soil. Seed banks enable F. wislizeni to take advantage of favorable rains and temperatures throughout the growing season, thus increasing the number of opportunities for germination. Moreover, seed banks enable F. wislizeni to respond hugely when the climate seems especially favorable, thus producing the large cohorts necessary to compensate for high seedling mortality. (C) 2000 Academic Press. |
英文关键词 | climate Ferocactus wislizeni seed banks germination seed longevity Arizona USA Sonoran Desert |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000088710400002 |
WOS关键词 | GERMINATION ; DORMANCY ; ECOLOGY ; RODENTS ; ANTS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/139258 |
作者单位 | (1)US Geol Survey, Tucson, AZ 85745 USA |
推荐引用方式 GB/T 7714 | Bowers, JE. Does Ferocactus wislizeni (Cactaceae) have a between-year seed bank?[J]. United States Geological Survey,2000,45(3):197-205. |
APA | Bowers, JE.(2000).Does Ferocactus wislizeni (Cactaceae) have a between-year seed bank?.JOURNAL OF ARID ENVIRONMENTS,45(3),197-205. |
MLA | Bowers, JE."Does Ferocactus wislizeni (Cactaceae) have a between-year seed bank?".JOURNAL OF ARID ENVIRONMENTS 45.3(2000):197-205. |
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