Arid
DOI10.1006/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
ISSN0140-1963
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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