Urban Domestic Gardens (IV): The Extent of the Resource and its Associated Features

Domestic ('private') gardens constitute a substantial proportion of 'green space' in urban areas and hence are of potential significance for the maintenance of biodiversity in such areas. However, the size and nature of this resource and its associated features are poorly known....

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Bibliographic Details
Published in:Biodiversity and conservation 2005-12, Vol.14 (14), p.3327-3349
Main Authors: Gaston, Kevin J, Warren, Philip H, Thompson, Ken, Smith, Richard M
Format: Article
Language:English
Subjects:
Composts
Domestic animals
Gardens & gardening
Green infrastructure
Housing policy
Ponds
Urban areas
Wildlife habitats
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Summary:Domestic ('private') gardens constitute a substantial proportion of 'green space' in urban areas and hence are of potential significance for the maintenance of biodiversity in such areas. However, the size and nature of this resource and its associated features are poorly known. In this study, we provide the first detailed audit, using domestic gardens in the city of Sheffield as a model study system. Domestic gardens, the mean area of which was 151 m^sup 2^, cover approximately 33 km^sup 2^ or 23% of the predominantly urban area of the city. The smaller gardens contribute disproportionately to this total because, although individually they add little, they are large in number. Conversely, the regions of the city with proportionately more garden area contribute most to the total garden area of the city, although such regions are limited in number. Based on the findings of a telephone based survey, 14.4% of dwellings with gardens were estimated to have ponds, 26% to have nest-boxes, 29% to have compost heaps, 48% to hold trees more than 3 m tall, and 14% of dwellings were estimated to be home to one or more cats. Whilst the absolute frequency of these features is low to moderate, by extrapolation they nonetheless yield estimates for domestic gardens in Sheffield of a total of 25,200 ponds, 45,500 nest boxes, 50,750 compost heaps, 360,000 trees, and a population of 52,000 domestic cats. These results are considered in the context of the role of gardens in urban areas as habitats for wildlife and the implications for housing policy.[PUBLICATION ABSTRACT]
ISSN:0960-3115
1572-9710
DOI:10.1007/s10531-004-9513-9