Arid
DOI10.1007/s11252-015-0482-4
Provincial and cosmopolitan: floristic composition of a dryland urban river
Stromberg, Juliet C.; Makings, Elizabeth; Eyden, Amy; Madera, Robert; Samsky, John, III; Coburn, Francis S.; Scott, Brenton D.
通讯作者Stromberg, Juliet C.
来源期刊URBAN ECOSYSTEMS
ISSN1083-8155
EISSN1573-1642
出版年2016
卷号19期号:1页码:429-453
英文摘要

High rates of intercontinental exchange of plant species have caused scientists to ask whether floristic areas with similar environments are undergoing global homogenization. We focused on riparian forests of the urban Salt River (Sonoran Desert, USA) to ask: (1) Is the forest dominated by cosmopolitan or provincial elements? (2) Which trees planted in the irrigated cityscape have established along the river? (3) Which types of restoration interventions have favored provincial species? We surveyed tree abundance, size and vigor in belt transects among five reaches that differed in degree of restoration, and obtained data on tree species composition of the urban landscape and pre-development riparian zone. Our results reveal the urban riparian forest to have many cosmopolitan elements, owing in part to spillover of trees from the cultivated cityscape (e.g., Acacia stenophylla, Vitex agnus-castus). Global spread of some regional (Neotropical) riparian taxa (e.g., Parkinsonia aculeata, Prosopis) also has contributed to the cosmopolitan status. Yet, the forests retain a distinct regional signature. Unintentional restoration of winter floods has allowed for regeneration of Salix gooddingii, a vernally-adapted provincial pioneer, although its long-term survivorship is restricted to limited micro-sites (storm drain outfalls). Urbanization-related changes in stream hydrogeomorphology explain increases in some regional species (e.g., Washingtonia spp.) that historically were excluded from the river.


Reaches restored by planting, weeding, watering, and geocountouring had the greatest abundance of provincial species and greatest floristic similarity to historic conditions.


英文关键词Arid region Cosmopolitan Plant community Ecosystem restoration Riparian forest Urban river
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000372546000026
WOS关键词PARKINSONIA-ACULEATA ; RIPARIAN VEGETATION ; STREAM-FLOW ; SALT RIVER ; LAND-USE ; RESTORATION ; TAMARIX ; DIVERSITY ; ARIZONA ; ECOLOGY
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences ; Urban Studies
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology ; Urban Studies
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196737
作者单位Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA
推荐引用方式
GB/T 7714
Stromberg, Juliet C.,Makings, Elizabeth,Eyden, Amy,et al. Provincial and cosmopolitan: floristic composition of a dryland urban river[J]. Arizona State University,2016,19(1):429-453.
APA Stromberg, Juliet C..,Makings, Elizabeth.,Eyden, Amy.,Madera, Robert.,Samsky, John, III.,...&Scott, Brenton D..(2016).Provincial and cosmopolitan: floristic composition of a dryland urban river.URBAN ECOSYSTEMS,19(1),429-453.
MLA Stromberg, Juliet C.,et al."Provincial and cosmopolitan: floristic composition of a dryland urban river".URBAN ECOSYSTEMS 19.1(2016):429-453.
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