NDLI: Effects of urban structure on plant species richness in a large European city

Content Provider	Springer Nature Link
Author	Schmidt, Katharina J. Poppendieck, Hans Helmut Jensen, Kai
Copyright Year	2013
Abstract	Urban areas have developed under anthropogenic impact and hence feature strongly altered environmental conditions that influence today’s plant species distribution. Generally, urban areas are rich in plant species, but on smaller scales richness can vary considerably. Our study aim is to identify areas of high species richness and to assess richness distribution patterns in the city of Hamburg by analyzing a floristic mapping dataset on the scale of 1 km$^{2}$. Differences in plant species richness were analyzed between three urbanization zones. With multiple regression analyses, we tested effects of urban structure, habitat, and environmental conditions on the distribution of species richness measures. Total species richness per 1 km$^{2}$ was 274 ± 60 on average and differed only slightly between the urbanization zones. It increased with habitat diversity and decreased with Ellenberg indicator values (EIV) for nutrients (multiple R$^{2}$ = 0.31). Proportion of non-native species increased with mean annual temperature and decreased with EIVs for moisture (multiple R$^{2}$ = 0.72), while proportion of endangered species increased with EIVs for moisture and decreased with EIVs for nutrients (multiple R$^{2}$ = 0.66). Proportion of thermophilic species (multiple R$^{2}$ = 0.58) could be explained by mean annual temperature. The emerging patterns probably differ from those in other cities due to the central port harboring a particular flora. Besides the expected high proportions of non-native species, high proportions of endangered species were also found in this area. Our results contribute to identifying drivers of biodiversity in cities and can thus be used to develop measures for the conservation of urban biodiversity.
Starting Page	427
Ending Page	444
Page Count	18
File Format	PDF
ISSN	10838155
Journal	Urban Ecosystems
Volume Number	17
Issue Number	2
e-ISSN	15731642
Language	English
Publisher	Springer US
Publisher Date	2013-06-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biodiversity Ellenberg indicator values Floristic mapping Species richness Spontaneous vegetation Urban ecology Urban Ecology Environmental Management Ecology Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Ecology Urban Studies

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