Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10530-008-9357-4 |
Seedling competition between native cottonwood and exotic saltcedar: implications for restoration | |
Bhattacharjee, Joydeep1; Taylor, John P., Jr.2; Smith, Loren M.3; Haukos, David A.4 | |
通讯作者 | Bhattacharjee, Joydeep |
来源期刊 | BIOLOGICAL INVASIONS
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ISSN | 1387-3547 |
出版年 | 2009 |
卷号 | 11期号:8页码:1777-1787 |
英文摘要 | Altered hydrology of southwestern United States rivers has led to a decline in native cottonwood (Populus deltoides). Areas historically dominated by cottonwood have been replaced by invasive saltcedar (Tamarix chinensis). Restoration of historic hydrology through periodic flooding of riparian areas has been a means of restoring native species. However, due to similarity in germination requirements of cottonwoods and saltcedars, flooding may create an unwanted increase in the number of saltcedar seedlings. Therefore, we evaluated competitive aspects of these co-occurring species in an extant riparian habitat in the arid southwestern US. We measured effects of competition between cottonwood and saltcedar seedlings and among cottonwood seedlings during the first growing season following seedling establishment in 360, 0.5 x 0.5-m plots at the Bosque del Apache National Wildlife Refuge, New Mexico. We used five interspecific density treatments and five intraspecific density treatments. Cottonwood seedling biomass and height were twice that of saltcedar seedlings across all density treatments. As density of cottonwood increased, intraspecific competition increased in severity and biomass of cottonwood seedlings decreased. At 4 plants/0.25 m(2), cottonwood seedlings had the greatest biomass; whereas, survival was highest at 10 plants/0.25 m(2). Our results support greenhouse studies and suggest that if favorable germination conditions are established for cottonwood in floodplains, saltcedar seedlings that cogerminate could be outcompeted by native cottonwood seedlings. |
英文关键词 | Biomass Competition Cottonwood Saltcedar Seedling Riparian |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000269529100003 |
WOS关键词 | MIDDLE RIO-GRANDE ; ECOSYSTEM MANAGEMENT ; TAMARIX-RAMOSISSIMA ; POPULUS-DELTOIDES ; LARGE FLOODS ; NEW-MEXICO ; DISTURBANCE ; ESTABLISHMENT ; DYNAMICS ; FOREST |
WOS类目 | Biodiversity Conservation ; Ecology |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/160007 |
作者单位 | 1.Univ Louisiana Monroe, Dept Biol, Monroe, LA 71209 USA; 2.Bosque Apache Natl Wildlife Refuge, Socorro, NM 87801 USA; 3.Oklahoma State Univ, Dept Zool, Stillwater, OK 74078 USA; 4.Texas Tech Univ, US Fish & Wildlife Serv, Dept Nat Resources Management, Lubbock, TX 79409 USA |
推荐引用方式 GB/T 7714 | Bhattacharjee, Joydeep,Taylor, John P., Jr.,Smith, Loren M.,et al. Seedling competition between native cottonwood and exotic saltcedar: implications for restoration[J],2009,11(8):1777-1787. |
APA | Bhattacharjee, Joydeep,Taylor, John P., Jr.,Smith, Loren M.,&Haukos, David A..(2009).Seedling competition between native cottonwood and exotic saltcedar: implications for restoration.BIOLOGICAL INVASIONS,11(8),1777-1787. |
MLA | Bhattacharjee, Joydeep,et al."Seedling competition between native cottonwood and exotic saltcedar: implications for restoration".BIOLOGICAL INVASIONS 11.8(2009):1777-1787. |
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