| DOI: | 10.1111/gcb.12825
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| 论文题名: | A landscape ecology approach identifies important drivers of urban biodiversity |
| 作者: | Turrini T.; Knop E.
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| 刊名: | Global Change Biology
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| ISSN: | 13541013
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| 出版年: | 2015
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| 卷: | 21, 期:4 | | 起始页码: | 1652
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| 结束页码: | 1667
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| 语种: | 英语
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| 英文关键词: | NDVI
; Agricultural intensification
; Arthropods
; Biodiversity
; Habitat amount
; Isolation
; Landscape ecology
; Urbanization
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| Scopus关键词: | agricultural intensification
; arthropod
; biodiversity
; isolation effect
; landscape ecology
; NDVI
; urban ecosystem
; urbanization
; Araneae
; Arthropoda
; Cicadellidae
; Coleoptera
; animal
; animal dispersal
; beetle
; biodiversity
; city
; ecosystem
; Heteroptera
; physiology
; spider
; Switzerland
; Animal Distribution
; Animals
; Beetles
; Biodiversity
; Cities
; Ecosystem
; Heteroptera
; Spiders
; Switzerland
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| 英文摘要: | Cities are growing rapidly worldwide, yet a mechanistic understanding of the impact of urbanization on biodiversity is lacking. We assessed the impact of urbanization on arthropod diversity (species richness and evenness) and abundance in a study of six cities and nearby intensively managed agricultural areas. Within the urban ecosystem, we disentangled the relative importance of two key landscape factors affecting biodiversity, namely the amount of vegetated area and patch isolation. To do so, we a priori selected sites that independently varied in the amount of vegetated area in the surrounding landscape at the 500-m scale and patch isolation at the 100-m scale, and we hold local patch characteristics constant. As indicator groups, we used bugs, beetles, leafhoppers, and spiders. Compared to intensively managed agricultural ecosystems, urban ecosystems supported a higher abundance of most indicator groups, a higher number of bug species, and a lower evenness of bug and beetle species. Within cities, a high amount of vegetated area increased species richness and abundance of most arthropod groups, whereas evenness showed no clear pattern. Patch isolation played only a limited role in urban ecosystems, which contrasts findings from agro-ecological studies. Our results show that urban areas can harbor a similar arthropod diversity and abundance compared to intensively managed agricultural ecosystems. Further, negative consequences of urbanization on arthropod diversity can be mitigated by providing sufficient vegetated space in the urban area, while patch connectivity is less important in an urban context. This highlights the need for applying a landscape ecological approach to understand the mechanisms shaping urban biodiversity and underlines the potential of appropriate urban planning for mitigating biodiversity loss. © 2015 John Wiley & Sons Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/61627
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| Appears in Collections: | 影响、适应和脆弱性
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作者单位: | Department of Community Ecology, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, Bern, Switzerland
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| Recommended Citation: | |
Turrini T.,Knop E.. A landscape ecology approach identifies important drivers of urban biodiversity[J]. Global Change Biology,2015-01-01,21(4)
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