Are Collembola “flying” onto green roofs?

Joimel, Sophie; Grard, Baptiste; Auclerc, Apolline; Hedde, Mickaël; Doaré, Nolwenn Le; Salmon, Sandrine; Chenu, Claire

doi:10.1016/j.ecoleng.2017.12.002

Cited by 38 publications

(22 citation statements)

References 36 publications

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“…For example, 176 species of plants were inventoried on 115 roofs in a European climate [49]. Studies have also confirmed the presence of arthropods, such as beetles, spiders, true bugs, hymenopterans (ants, bees, wasps), flies [50][51][52], springtails (up to 44 species) [53,54], and mites [55], in addition to fungi [54,55] and bacteria [56]. A recent review conducted in six Swiss cities over the past 20 years showed that 91 out of the 532 species (17%) known in Switzerland are represented on green roofs [57].…”

Section: Are Green Walls and Green Roofs Large Enough For Supporting mentioning

confidence: 99%

Green Roofs and Green Walls for Biodiversity Conservation: A Contribution to Urban Connectivity?

2018

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Green roofs and walls have recently emerged as conservation tools, and they offer promising additional opportunities to enhance biodiversity in cities. However, their ecological conditions remain poorly considered when planning wildlife corridors. To discuss the role of vegetated buildings in landscape connectivity, we reviewed the ecological and technical specificities of green walls and green roofs in light of the key factors concerning urban wildlife (patch size, quality, abundance, and isolation). Green roofs and walls show limited patch sizes, distinct habitat quality at the building scale, and limited redundancy of patch quality within the landscape. We also highlight that the abundance of roof and wall patches is often low. Future research is needed to establish if walls can be vertical corridors for wildlife, thereby reducing the isolation of green roofs. We argue that creating 3D ecological connectivity within the city requires substantial modifications of the design and maintenance of existing green building systems. We suggest that research is needed to integrate the biotic and abiotic characteristics of green buildings to make them more closely resemble those of open green spaces.

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Section: Are Green Walls and Green Roofs Large Enough For Supporting mentioning

confidence: 99%

Green Roofs and Green Walls for Biodiversity Conservation: A Contribution to Urban Connectivity?

2018

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“…In these studies, the functional richness of springtails (Collembola) was higher on intensive than extensive roofs in Paris [53], and higher in roof habitats dominated by herbaceous vs. Sedum species across Europe [62]. Therefore, more favorable roof conditions seem to support a larger range of trait values than harsh conditions.…”

Section: Trends In Green Roof Functional Diversity and Patterns In Fumentioning

confidence: 85%

“…No differences were shown for measures indicating trait dissimilarity in a community, such as Rao's Q of arthropods in ground-level habitats vs. green roofs, or with increasing substrate depth in Zurich [66], and functional dissimilarity and divergence of springtails in intensive vs. extensive green roofs [53]. The lack of such differences might point towards strong environmental filters shaping all these habitats, which is in line with studies showing that community assembly in urban habitats usually is dominated by filtering processes [97].…”

Section: Trends In Green Roof Functional Diversity and Patterns In Fumentioning

confidence: 90%

“…The effects of harsh roof conditions (especially heat and aridity) are reflected in lower numbers of arthropod species on extensive than intensive green roofs [53,54]. Nonetheless, extensive roofs hosted more bird species than semi-extensive roofs [55] and brown/biodiverse roofs supported more invertebrate species than green roofs [56].…”

Section: Roof Characteristics Species Richness Species Abundance Funcmentioning

confidence: 99%

“…The community-weighted mean (CWM), which is the abundance-weighted mean of a trait's distribution in a species community, can be used to identify shifts in mean trait values with changing environmental conditions [99]. It is therefore not surprising that springtails' CWM differed between intensive and extensive roofs, with intensive roofs supporting a lower abundance of species with spherical body shape but more species reproducing sexually, and without ocelli or furcular, but no differences for body length and pigmentation [53]. On 15 green roofs left to natural succession in Hanover, Germany, within 30 years, the CWM of vascular plants indicated a shift from species dispersing by wind and competitors to species dispersing by animals, and species adapted to warm-dry and ruderal conditions such as therophytes [44].…”

Section: Trends In Green Roof Functional Diversity and Patterns In Fumentioning

confidence: 99%

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Biodiversity Impact of Green Roofs and Constructed Wetlands as Progressive Eco-Technologies in Urban Areas

2019

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The total amount of sealed surfaces is increasing in many urban areas, which presents a challenge for sewerage systems and wastewater treatment plants when extreme rainfall events occur. One promising solution approach is the application of decentralized eco-technologies for water management such as green roofs and constructed wetlands, which also have the potential to improve urban biodiversity. We review the effects of these two eco-technologies on species richness, abundance and other facets of biodiversity (e.g., functional diversity). We find that while green roofs support fewer species than ground-level habitats and thus are not a substitute for the latter, the increase in green roof structural diversity supports species richness. Species abundance benefits from improved roof conditions (e.g., increased substrate depth). Few studies have investigated the functional diversity of green roofs so far, but the typical traits of green roof species have been identified. The biodiversity of animals in constructed wetlands can be improved by applying animal-aided design rather than by solely considering engineering requirements. For example, flat and barrier-free shore areas, diverse vegetation, and heterogeneous surroundings increase the attractiveness of constructed wetlands for a range of animals. We suggest that by combining and making increasing use of these two eco-technologies in urban areas, biodiversity will benefit.

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Collembola dispersion, selection, and biological interactions in urban ecosystems: a review

2022

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Most of the ecological predictions that are intended to be general have been made on the basis of observations of aerial organisms, ignoring subterranean organisms, which are subject to other -and complex -constraints compared from those present on the surface. Collembola, a soil fauna group, are good biological indicators of soil quality and could be used as model organisms in order to understand assembly rules of soil organisms in cities. Here we review available literature on soil Collembola conducted on 75 publications dealing with urban context.The major points are the following: (1) Soil properties and landscape characteristics influenced soil communities. The importance of landscape is also highlighted by the need of connectivity between urban green spaces in order to allow dispersion of Collembola.However, studies of Collembola communities in urban context are recent, offering little hindsight to understand their assembly. (2) A gap of references values, complexities by a lack of methods standardisation, is observable. Especially, knowledge on dispersion and biotic interactions are still too rare. (3) Moreover, studies on temporal aspect in order to understand better the colonisation processes are almost absent of the corpus.

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Are Collembola “flying” onto green roofs?

Cited by 38 publications

References 36 publications

Green Roofs and Green Walls for Biodiversity Conservation: A Contribution to Urban Connectivity?

Green Roofs and Green Walls for Biodiversity Conservation: A Contribution to Urban Connectivity?

Biodiversity Impact of Green Roofs and Constructed Wetlands as Progressive Eco-Technologies in Urban Areas

Collembola dispersion, selection, and biological interactions in urban ecosystems: a review

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