Urbanisation factors impacting on ant (Hymenoptera: Formicidae) biodiversity in the Perth metropolitan area, Western Australia: Two case studies
MetadataShow full item record
Two synchronous projects undertaken in 2011 examined the likely impact of increasing urban densification on invertebrate populations within urban settlement in Perth, Western Australia. One project analysed the ant fauna found in 20 gardens and lawns in small to very small properties (these having a bungalow or duplex (semi-detached) as the main residential building, and a lawn or garden area of 43 m2–332 m2) east, south, north and west of the Central Business District (CBD). The other project examined the ant fauna at 14 sites, principally in native regrowth along the Kwinana Freeway, a major artery that runs north to south through Perth’s suburbs. The gardens and lawns produced a very depauperate fauna of 26 ant species, of which a maximum of 20 were native and at least six species were exotic. The ant fauna from regrowth adjacent to the Kwinana Freeway and at two additional sites (one a bush control) was more than twice as rich, the 56 species collected including only two exotics. In the garden project, ant richness, evenness and abundance were not significantly correlated with size of the garden area. The same applied even when the exotic Pheidole megacephala-dominated gardens were removed from the analysis. Ordination analysis combining the two sets of data revealed a distinct clustering of most of the regrowth sites, whereas the bush control stood alone and garden or lawn sites exhibited a much looser pattern of association. We suggest that increasing the density of Perth suburbs is resulting in drastic loss of native invertebrate fauna, of which ants are a useful bioindicator. However, native vegetation regrowth along major arterial roads could act as a reservoir for invertebrate species that might otherwise disappear entirely from the Perth metropolitan area.
NOTICE: This is the author’s version of a work in which changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication.
The final publication is available at Springer via http://doi.org/10.1007/s11252-012-0257-0
Showing items related by title, author, creator and subject.
The effects of urbanization on the ant fauna of the Swan Coastal Plain near Perth, Western AustraliaMajer, Jonathan; Brown, K. (1986)The ant fauna in 33 Perth gardens was surveyed by hand collecting, and pitfall trapping. The resulting catch was considered at the species level and also four ant variables (abundance, species richness, species diversity ...
Quantifying the biodiversity values of reforestation: perspectives, design issues and outcomes in Australian rainforest landscapesCatterrall, C.; Kanowski, J.; Wardell-Johnson, Grant; Proctor, H.; Rels, T.; Harrison, D.; Tucker, N. (2004)Following two centuries of land clearing, the past two decades have seen growing efforts to re-establish forest on formerly-cleared sites. While the immediate goals of reforestation vary, there is also a widespread ...
Uren, H.; Dzidic, Peta; Bishop, Brian John (2015)Western Australia (WA) is experiencing severe water shortages associated with a drying climate. Suburban gardens in and around WA's capital city of Perth however, continue to be dominated by water dependent European style ...