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References

  1. T. Munyuli, “Climatic, regional land-use intensity, landscape, and local variables predicting best the occurrence and distribution of bee community diversity in various farmland habitats in Uganda,” Psyche, vol. 2013, Article ID 564528, 38 pages, 2013.
Psyche
Volume 2013, Article ID 564528, 38 pages
http://dx.doi.org/10.1155/2013/564528
Research Article

Climatic, Regional Land-Use Intensity, Landscape, and Local Variables Predicting Best the Occurrence and Distribution of Bee Community Diversity in Various Farmland Habitats in Uganda

1Academic Affairs and Research Program, Cinquantenaire University (UNI-50/Lwiro), D.S. Bukavu, South-Kivu Province, Democratic Republic of Congo
2Department of Biological, Agricultural and Environment Sciences, National Center for Research in Natural Sciences (CRSN/Lwiro), D.S. Bukavu, South-Kivu Province, Democratic Republic of Congo
3Centre of research for health promotion (CRPS), Department of Nutrition and Dietetics, Bukavu Higher Institute of Medical Techniques (ISTM/Bukavu), P.O. Box 3036, Bukavu, South-Kivu Province, Democratic Republic of Congo
4Department of Environmental and Natural Resource Economics, Faculty of Natural Resources and Environmental Sciences, Namasagali Campus, Busitema University, P.O. Box 236, Tororo, Uganda

Received 8 September 2012; Revised 14 December 2012; Accepted 17 December 2012

Academic Editor: Fernando B. Noll

Copyright © 2013 M. B. Théodore Munyuli. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study was conducted in 2006 in central Uganda to provide baseline data on relationships between bee community variables and local, climatic, landscape and regional drivers affecting bee community abundance and diversity in agricultural landscapes. Bee abundance and species richness increased significantly ( ) with increase in percent cover of semi-natural habitats and the abundance of wild and cultivated floral resources in the landscape. There were strong linear declines ( ) in bee species richness and abundance with cultivation intensity. Bee species richness declined very steeply with forest distance. Bee species richness and abundance were negatively affected by land-use intensity ( ). Bee species richness and abundance were strongly negatively correlated ( ) with increase in mean annual temperatures in the previous years than in current years indicating potential vulnerability of local bee species to future climate changes. The percent cover of semi-natural habitats and natural in the farmland predicted best the occurrence and distribution in central Uganda. It is therefore recommended to policy-makers and to farmers to invest in the protection of forest fragments (and related semi-natural habitats) acting as buffer in the mitigation of negative effects of climate change on bee biodiversity and pollination services delivery.