NDLI: Bee-friendly community gardens: Impact of environmental variables on the richness and abundance of exotic and native bees

Content Provider	Springer Nature Link
Author	Makinson, James C. Threlfall, Caragh G. Latty, Tanya
Copyright Year	2016
Abstract	With their abundant floral resources, urban community gardens have the potential to play an important role in pollinator conservation. At the same time, the gardens themselves are dependent upon the pollination services provided by insects. Thus, understanding the variables that can increase bee richness or abundance in community gardens can contribute to both urban agriculture and pollinator conservation. Here we examine the impact of several environmental variables on bee abundance and diversity in urban community gardens in Sydney, Australia. We used hand netting and trap nests to sample bees in 27 community gardens ranging from inner city gardens with limited surrounding green space, to suburban gardens located next to national parks. We did not find strong support for an impact of any of our variables on bee species richness, abundance or diversity. We found high abundance of a recently introduced non-native bee: the African carder bee, Afranthidium repetitum (Schulz 1906). The abundance of African carder bees was negatively correlated with the amount of surrounding green space and positively correlated with native bee abundance/species richness. Our results highlight the seemingly rapid increase in African carder bee populations in inner city Sydney, and we call for more research into this bee’s potential environmental impacts. Our results also suggest that hard-to-change environmental factors such as garden size and distance to remnant forests may not have a strong influence on native bee diversity and abundance in highly urbanized area.
Starting Page	463
Ending Page	476
Page Count	14
File Format	PDF
ISSN	10838155
Journal	Urban Ecosystems
Volume Number	20
Issue Number	2
e-ISSN	15731642
Language	English
Publisher	Springer US
Publisher Date	2016-10-22
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Community gardens Hymenoptera Urban conservation Pollinators Exotic species Urban Ecology Environmental Management Ecology Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Ecology Urban Studies

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