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Environmental and Anthropogenic Impacts on Avifaunal Assemblages in an Urban Parkland, 1976 to 2007.

Ormond SE, Whatmough R, Hudson IL, Daniels CB - Animals (Basel) (2014)

Bottom Line: Resident parkland birds demonstrated significant declines in abundance.Native and introduced species also exhibited long-term declines in species richness and abundance throughout the 32-year period.Cycles of varying time periods indicated fluctuations in avian biodiversity demonstrating the need for future monitoring and statistical analyses on bird communities in the Adelaide City parklands.

View Article: PubMed Central - PubMed

Affiliation: School of Natural and Built Environments, University of South Australia, Mawson Lakes Campus, P.O. Box 2471, Adelaide, SA 5000, Australia. sara.ormond@sa.gov.au.

ABSTRACT
Urban environments are unique, rapidly changing habitats in which almost half of the world's human population resides. The effects of urbanisation, such as habitat (vegetation) removal, pollution and modification of natural areas, commonly cause biodiversity loss. Long-term ecological monitoring of urban environments is vital to determine the composition and long-term trends of faunal communities. This paper provides a detailed view of long-term changes in avifaunal assemblages of the Adelaide City parklands and discusses the anthropogenic and environmental factors that contributed to the changes between 1976 and 2007. The Adelaide City parklands (ACP) comprise 760 ha of land surrounding Adelaide's central business district. Naturalist Robert Whatmough completed a 32-year survey of the ACP to determine the structure of the urban bird community residing there. Annual species richness and the abundance of birds in March and September months were analysed. Linear regression analysis was applied to species richness and abundance data of each assemblage. Resident parkland birds demonstrated significant declines in abundance. Native and introduced species also exhibited long-term declines in species richness and abundance throughout the 32-year period. Cycles of varying time periods indicated fluctuations in avian biodiversity demonstrating the need for future monitoring and statistical analyses on bird communities in the Adelaide City parklands.

No MeSH data available.


Related in: MedlinePlus

Total Species Abundance in March and September months.
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animals-04-00119-f003: Total Species Abundance in March and September months.

Mentions: Abundance data were examined by comparing the number of birds recorded in March and September from 1976 to 2007 (Figure 3). In both March and September the resident species comprised a large majority of bird abundance (Figure 3). Overall, March and September months were similar in mean abundance calculations (Figure 3).


Environmental and Anthropogenic Impacts on Avifaunal Assemblages in an Urban Parkland, 1976 to 2007.

Ormond SE, Whatmough R, Hudson IL, Daniels CB - Animals (Basel) (2014)

Total Species Abundance in March and September months.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494304&req=5

animals-04-00119-f003: Total Species Abundance in March and September months.
Mentions: Abundance data were examined by comparing the number of birds recorded in March and September from 1976 to 2007 (Figure 3). In both March and September the resident species comprised a large majority of bird abundance (Figure 3). Overall, March and September months were similar in mean abundance calculations (Figure 3).

Bottom Line: Resident parkland birds demonstrated significant declines in abundance.Native and introduced species also exhibited long-term declines in species richness and abundance throughout the 32-year period.Cycles of varying time periods indicated fluctuations in avian biodiversity demonstrating the need for future monitoring and statistical analyses on bird communities in the Adelaide City parklands.

View Article: PubMed Central - PubMed

Affiliation: School of Natural and Built Environments, University of South Australia, Mawson Lakes Campus, P.O. Box 2471, Adelaide, SA 5000, Australia. sara.ormond@sa.gov.au.

ABSTRACT
Urban environments are unique, rapidly changing habitats in which almost half of the world's human population resides. The effects of urbanisation, such as habitat (vegetation) removal, pollution and modification of natural areas, commonly cause biodiversity loss. Long-term ecological monitoring of urban environments is vital to determine the composition and long-term trends of faunal communities. This paper provides a detailed view of long-term changes in avifaunal assemblages of the Adelaide City parklands and discusses the anthropogenic and environmental factors that contributed to the changes between 1976 and 2007. The Adelaide City parklands (ACP) comprise 760 ha of land surrounding Adelaide's central business district. Naturalist Robert Whatmough completed a 32-year survey of the ACP to determine the structure of the urban bird community residing there. Annual species richness and the abundance of birds in March and September months were analysed. Linear regression analysis was applied to species richness and abundance data of each assemblage. Resident parkland birds demonstrated significant declines in abundance. Native and introduced species also exhibited long-term declines in species richness and abundance throughout the 32-year period. Cycles of varying time periods indicated fluctuations in avian biodiversity demonstrating the need for future monitoring and statistical analyses on bird communities in the Adelaide City parklands.

No MeSH data available.


Related in: MedlinePlus