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Title: Global macroecology of bird assemblages in urbanized and semi-natural ecosystems
Authors: Pautasso, M.
Böhning-Gaese, K.
Clergeau, P.
Cueto, V.R.
Dinetti, M.
Fernández-Juricic, E.
Kaisanlahti-Jokimäki, M.-L.
Jokimäki, J.
Mckinney, M.L.
Sodhi, N.S. 
Storch, D.
Tomialojc, L.
Weisberg, P.J.
Woinarski, J.
Fuller, R.A.
Cantarello, E.
Keywords: Birds
Conservation biogeography
Environmental impacts
Habitat heterogeneity
More-individuals hypothesis
Species-energy relationship
Species-people coexistence
Urban ecology
Issue Date: May-2011
Citation: Pautasso, M., Böhning-Gaese, K., Clergeau, P., Cueto, V.R., Dinetti, M., Fernández-Juricic, E., Kaisanlahti-Jokimäki, M.-L., Jokimäki, J., Mckinney, M.L., Sodhi, N.S., Storch, D., Tomialojc, L., Weisberg, P.J., Woinarski, J., Fuller, R.A., Cantarello, E. (2011-05). Global macroecology of bird assemblages in urbanized and semi-natural ecosystems. Global Ecology and Biogeography 20 (3) : 426-436. ScholarBank@NUS Repository.
Abstract: Aim Despite the increasing pace of urbanization, little is known about how this process affects biodiversity globally. We investigate macroecological patterns of bird assemblages in urbanized areas relative to semi-natural ecosystems. Location World-wide. Methods We use a database of quantitative bird surveys to compare key assemblage structure parameters for plots in urbanized and semi-natural ecosystems controlling for spatial autocorrelation and survey methodology. We use the term 'urbanized' instead of 'urban' ecosystems as many of the plots were not located in the centre of towns but in remnant habitat patches within conurbations. Results Some macroecological relationships were conserved in urbanized landscapes. Species-area, species-abundance and species-biomass relationships did not differ significantly between urbanized and non-urbanized environments. However, there were differences in the relationships between productivity and assemblage structure. In forests, species richness increased with productivity; in both forests and open habitats, the evenness of species abundances declined as productivity increased. Among urbanized plots, instead, both species richness and the evenness of species abundances were independent of variation in productivity. Main conclusions Remnant habitats within urbanized areas are subject to many ecological alterations, yet key macroecological patterns differ remarkably little in urbanized versus non-urbanized plots. Our results support the need for increased conservation activities in urbanized landscapes, particularly given the additional benefits of local experiences of biodiversity for the human population. With increasing urbanization world-wide, broad-scale efforts are needed to understand and manage the effects of this driver of change on biodiversity. © 2010 Blackwell Publishing Ltd.
Source Title: Global Ecology and Biogeography
ISSN: 1466822X
DOI: 10.1111/j.1466-8238.2010.00616.x
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