Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1023/B:VEGE.0000026026.34760.1b |
Temporal and spatial patterns in emergence and early survival of perennial plants in the Sonoran Desert | |
Bowers, JE; Turner, RM; Burgess, TL | |
通讯作者 | Bowers, JE |
来源期刊 | PLANT ECOLOGY
![]() |
ISSN | 1385-0237 |
出版年 | 2004 |
卷号 | 172期号:1页码:107-119 |
英文摘要 | Seedling emergence and survival of 15 perennial species were studied for six years in a 557-m(2) permanent plot at Tumamoc Hill, Arizona, USA, an ungrazed site in the northern Sonoran Desert. The minimum rain required for germination and emergence ranged from 17.5 to 35.6 mm. Few species emerged in every year of the study. First-year survival averaged across all 15 species was 3.7%; only 0.1% of seedlings lived as long as four years. The odds of survival in the first year improved with increased rain. About three times as many seedlings died from predation as desiccation. In 2-m(2) subplots, mortality of three woody species in the first 30 days after emergence appeared to be independent of seedling density. Short-, moderate-, and long-lived species displayed distinct survival strategies. Long-lived species compensated for generally poor seedling survival by frequent germination and emergence. Moderate-lived species exhibited highly episodic germination and emergence, a potentially risky behavior that might have been offset to some extent by relatively good long-term survival. Short- lived species had the highest seedling survival. Because these species can bloom in their first year, good early survival meant that some individuals were able to reproduce before they died. |
英文关键词 | Morisita’s Index of Dispersion mortality recruitment |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000221121300010 |
WOS关键词 | LARREA-TRIDENTATA ZYGOPHYLLACEAE ; WESTERN UNITED-STATES ; MOJAVE-DESERT ; SEEDLING SURVIVAL ; CERCIDIUM-MICROPHYLLUM ; CLIMATIC VARIABILITY ; VEGETATION CHANGE ; ESTABLISHMENT ; POPULATION ; DISPERSAL |
WOS类目 | Plant Sciences ; Ecology ; Forestry |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
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/2XILL650/147877 |
作者单位 | (1)US Geol Survey, Tucson, AZ 85745 USA;(2)Columbia Univ, Oracle, AZ USA |
推荐引用方式 GB/T 7714 | Bowers, JE,Turner, RM,Burgess, TL. Temporal and spatial patterns in emergence and early survival of perennial plants in the Sonoran Desert[J]. United States Geological Survey,2004,172(1):107-119. |
APA | Bowers, JE,Turner, RM,&Burgess, TL.(2004).Temporal and spatial patterns in emergence and early survival of perennial plants in the Sonoran Desert.PLANT ECOLOGY,172(1),107-119. |
MLA | Bowers, JE,et al."Temporal and spatial patterns in emergence and early survival of perennial plants in the Sonoran Desert".PLANT ECOLOGY 172.1(2004):107-119. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。