Exotics on exotics: Pollen analysis of urban bees visiting Sedum on a green roof

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• 作者：J. Scott MacIvor ; Ally Ruttan ; Baharak Salehi
• 关键词：Pollination ; Urban ; Native ; Vegetated roof ; Enhancement ; Extensive ; Diversity ; Habitat design
• 刊名：Urban Ecosystems
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：18
• 期：2
• 页码：419-430
• 全文大小：469 KB
• 参考文献：Banaszak -Cibicka W, ?mihorski M (2012) Wild bees along an urban gradient: winners and losers. J Insect Conserv 16:331-43View Article
  Bosch J, Retana J, Cerdá X (1997) Flowering phenology, floral traits and pollinator composition in a herbaceous mediterranean plant community. Oecologia 109:583-91View Article
  Braaker S, Ghazoul J, Obrist MK, Moretti M (2014) Habitat connectivity shapes urban arthropod communities: the key role of green roofs. Ecology 95:1010-021View Article PubMed
  Brenneisen S (2006) Space for urban wildlife: designing green roofs as habitats in Switzerland. Urban Habitats 4:27-6
  Cane J (2003) Exotic non-social bees (Hymenoptera: Apoidea) in North America: ecological implications. In: Strickler KV, Cane JH (eds) For non-native crops, whence pollinators of the future? Thomas Say Publications in Entomology, Maryland, pp 113-26
  Cane JH, Payne JA (1988) Foraging ecology of the bee Habropoda laboriosa (Hymenoptera: Anthophoridae), an oligolege of blueberries (Ericaceae: Vaccinium) in the southeastern United States. Ann Entomol Soc Am 81:419-27View Article
  Castleton HF, Stovin V, Beck SBM, Davison JB (2010) Green roofs: building energy savings and the potential for retrofit. Ener Build 42:1582-591View Article
  Chittka L, Schürkens S (2001) Successful invasion of a floral market. Nature 411:653-53View Article PubMed
  Clausen R (1975) Sedum of North America North of the Mexican Plateau. Cornell University Press, Ithaca
  Colla SR, Willis E, Packer L (2009) Can green roofs provide habitat for urban bees (hymenoptera: apidae)? CATE 2:1-2
  Costa CM, Yang S (2009) Counting pollen grains using readily available, free image processing and analysis software. Ann Bot 104:1005-010View Article PubMed Central PubMed
  Czemiel Berndtsson J (2010) Green roof performance towards management of runoff water quantity and quality: a review. Ecol Eng 36:351-60View Article
  Dingemans-Bakels FN (1972) The pollen-collecting activities of some Andrenid bees. Zool Meded 47:465-67
  Dornhaus A, Chittka L (2004) Information flow and regulation of foraging activity in bumble bees (Bombus spp.). Apidologie 35:183-92View Article
  Dunnett N, Kingsbury N (2004) Planting green roofs and living walls. Timber Press, Portland
  Dvorak B, Volder A (2010) Green roof vegetation for North American ecoregions: a literature review. Land Urban Plann 96:197-13View Article
  Frankie GW, Thorp RW, Schindler M, Hernandez J, Ertter B, Rizzardi M (2005) Ecological patterns of bees and their host ornamental flowers in two northern California cities. J Kansas Entomol Soc 78:227-46View Article
  Fussell M, Corbet A (1992) Flower usage by bumble-bees: a basis for forage plant management. J Appl Ecol 29:451-65View Article
  Getter KL, Rowe DB (2008) Media depth influences sedum green roof establishment. Urb Ecosyst 11:361-72View Article
  Getter KL, Rowe DB, Robertson GP, Cregg BM, Andresen JA (2009) Carbon sequestration potential of extensive green roofs. Environ Sci Tech 43(19):7564-570View Article
  Ghazoul J (2004) Alien abduction: disruption of native plant‐pollinator interactions by invasive species. Biotropica 36:156-64
  Gibbs J (2010) Revision of the metallic species of Lasioglossum (Dialictus) in Canada (Hymenoptera, Halictidae, Halictini). Zootaxa 2591:1-82
  Goulson D, Stout JC (2001) Homing ability of bumblebees; evidence for a large foraging range? Apidologie 32:105-12View Article
  Greenleaf SS, Williams NM, Winfree R, Kremen C (2007) Bee foraging ranges and their relationship to body size. Oecologia 153:589-96View Article PubMed
  Grixti JC, Packer L (2006) Changes in the bee fauna (Hymenoptera: Apoidea) of an old field site in southern Ontario, revisited after 34?years. Can Ent 138:147-64View Article
  Harder LD (1990) Behavioral responses by bumble bees to variation in pollen availability. Oecologia 85:41-7View Article
  Jato MV, Iglesias MI, Rodriguez-Gracia V (1994) A contribution to the environmental relationship of the pollen spectra of honeys from Ourense (NW Spain). Grana 33:260-67View Article
  Kadas G (2006) Rare invertebrates colonizing green roofs in London. Urban Habitats 4:66-6
  Kearns CA, Inouye DW (1993) Techniques for pollination biologists. University Press of Colorado, Colorado
  Knuth P (1906) Handbook of flower pollination Vol. 2. Clarendon Press, Oxford
  Ksiazek K, Fant J, Skogen K (2012) An assessment of pollen limitation on Chicago green roofs. Land Urban Plann 107:401-08View Article
  Ksiazek K, Tonietto R, Ascher JS (2014) Ten bee species new to green roofs in the Chicago area. G Lakes Entomol 47:47-2
  Larson DL, Royer RA, Royer MR (2006) Insect visitation and pollen deposition in an invaded prairie plant community. Biol Conserv 130:148-59View Article
  Loder A (2014) ‘There’s a meadow outside my workplace- a phenomenological exploration of aesthetics and green roofs in Chicago and Toronto. Land Urban Plann
• 作者单位：J. Scott MacIvor (1)
  Ally Ruttan (1)
  Baharak Salehi (1)
  
  1. Biology Department, York University, 4700 Keele St, Toronto, ON M3J 1P3, Canada
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Ecology
  Environmental Management
  Nature Conservation
  
• 出版者：Springer Netherlands
• ISSN：1573-1642

文摘

Numerous bee species were collected from a single green roof over the blooming period of the dominant exotic plant type, Sedum, a succulent stonecrop widely used in the green roof industry. As green roofs become more common in cities, an understanding of the potential positive and negative impacts of widespread use of this exotic but useful plant is needed. In this study we sampled bees visiting a green roof in downtown Toronto and compared the proportion of Sedum pollen in the loads they were carrying back to nesting locations. It was found that smaller bees (e.g. Lasioglossum, Hylaeus) were significantly less common on the roof compared with medium (e.g. Apis, Megachile) and large-sized bees (e.g. Bombus, Andrena). The proportion of Sedum pollen in the pollen loads of foraging bees collected was high amongst all bees (average of 80.5?% of total pollen load), but significantly greater for exotic bees compared to native bees. Moreover, native bees had significantly greater numbers of non-Sedum pollen types comprising more than >20?% of their pollen loads, meaning bees could be visiting flowers at ground level and on the roof in the same foraging bout. As the number of green roofs in cities increase, the characteristics of their designs, including the vegetation type and diversity, could have a significant impact in shaping local urban bee communities.