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Effects of farm size and on-farm landscape heterogeneity on biodiversity-case study of twelve farms in a swedish landscape
Department of Urban and Rural Development, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Örebro University, School of Science and Technology.
Department of Urban and Rural Development, Swedish University of Agricultural Sciences, Uppsala, Sweden.
2015 (English)In: Agroecology and Sustainable Food Systems, ISSN 2168-3565, E-ISSN 2168-3573, Vol. 39, no 2, p. 170-188Article in journal (Refereed) Published
Abstract [en]

In this study in Sweden, six small (<50 ha) and six large farms (>135 ha) participated. The aims of the study were to a) measure differences between small and large farms regarding on-farm landscape heterogeneity, and b) evaluate relations between on-farm landscape heterogeneity and biodiversity, measured as numbers of breeding bird species, bird territories, butterflies, bumblebees, and herbaceous plant species. Sample area of the same size, placed on each farm, was used for the biodiversity assessments and on-farm landscape heterogeneity studies. On-farm landscape heterogeneity was classified with the Shannon-Wiener diversity index. Linear regression was applied to analyze relationships between on-farm landscape heterogeneity and biodiversity indicators. Multivariate regression was used to analyze relations between single bird species and specific on-farm habitats. Small farms had significantly higher on-farm landscape heterogeneity than large farms. Strong positive relations between on-farm landscape heterogeneity and number of breeding birds, butterflies, and herbaceous plant species were found. Total on-farm landscape heterogeneity seems to be more important for bird diversity than do specific landscape elements. The study indicates that, to increase biodiversity, farm size should be taken into consideration.

Place, publisher, year, edition, pages
2015. Vol. 39, no 2, p. 170-188
Keywords [en]
agriculture, farm size, landscape, heterogeneity, habitat, biodiversity
National Category
Agricultural Sciences
Identifiers
URN: urn:nbn:se:oru:diva-40152DOI: 10.1080/21683565.2014.967437ISI: 000346056900004Scopus ID: 2-s2.0-84919725559OAI: oai:DiVA.org:oru-40152DiVA, id: diva2:776921
Note

Funding Agencies:

Ekhaga Foundation

Ebba and Sven Schwartz Foundation

Available from: 2015-01-08 Created: 2015-01-07 Last updated: 2017-12-05Bibliographically approved

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Björklund, Johanna

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