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Vegetated roofs in boreal climate support mobile open habitat arthropods, with differentiation between meadow and succulent roofs

Kyro, Kukka and Kotze, D. Johan and Mullner, Malgorzata Anna and Hakala, Sanja and Kondorosy, Elod and Pajunen, Timo and Vilisics, Ferenc and Lehvävirta, Susanna (2020). Vegetated roofs in boreal climate support mobile open habitat arthropods, with differentiation between meadow and succulent roofs. Urban Ecosystems. 23 , 1239-1252
[Journal article]

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Abstract

Vegetated roofs are hoped to benefit urban wildlife, yet there are few empirical results regarding the conservation potential of such roofs. In this paper, we focus on arthropods on vegetated roofs. We vacuum sampled 17 succulent, meadow or succulent-meadow roofs, in Helsinki, Finland, and used order to species level information together with trait data to describe the communities. We evaluated the importance of biophysical roof characteristics on shaping arthropod assemblages to provide information concerning roof designs that promote rich arthropod fauna. Arthropod communities differed between the three roof types and the influence of roof variables varied between and within arthropod orders. The main local drivers of arthropod abundance across the individually analysed taxa were roof height and vegetation, with mainly positive effects of height (up to 11 m) and litter cover, and mainly negative effects of grass cover. Based on trait data from true bugs, spiders and ants, the roofs consisted mainly of common dispersive species that are generalist feeders and associated with dry open habitats or have wide habitat tolerance. We found one true bug species new to the country and assume that it arrived with imported vegetation. Based on these findings, vegetated roofs of varying height and size benefit common generalists and fauna of open dry habitats, but seem to lack rare native specialists and may introduce non-natives if imported plant material is used. Because the responses to vegetation characteristics are taxon-specific, high diversity of roof vegetation types would benefit arthropod conservation.

Authors/Creators:Kyro, Kukka and Kotze, D. Johan and Mullner, Malgorzata Anna and Hakala, Sanja and Kondorosy, Elod and Pajunen, Timo and Vilisics, Ferenc and Lehvävirta, Susanna
Title:Vegetated roofs in boreal climate support mobile open habitat arthropods, with differentiation between meadow and succulent roofs
Year of publishing :2020
Volume:23
Page range:1239-1252
Number of Pages:14
ISSN:1083-8155
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:None
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Landscape Architecture
Keywords:Arthropods, Insects, Functional traits, Green roof, Nature-based solutions, Urban ecology
URN:NBN:urn:nbn:se:slu:epsilon-p-105636
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105636
Additional ID:
Type of IDID
DOI10.1007/s11252-020-00978-4
Web of Science (WoS)000529574700001
ID Code:17982
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Landscape Architecture, Planning and Management
Deposited By: SLUpub Connector
Deposited On:28 Oct 2020 11:43
Metadata Last Modified:28 Oct 2020 11:51

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