Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia

We conducted a survey of ants in April 1997 in seven rehabilitated (2- to 20-year-old) and three native heathland reference sites of the Renison Goldfields Corporation (RGC) Mineral Sands operations at Eneabba, Western Australia. We employed a variety of collecting methods, including pitfall trappin...

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Main Authors: Bisevac, L., Majer, Jonathan
Format: Journal Article
Published: 1999
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/10321
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author Bisevac, L.
Majer, Jonathan
author_facet Bisevac, L.
Majer, Jonathan
author_sort Bisevac, L.
building Curtin Institutional Repository
collection Online Access
description We conducted a survey of ants in April 1997 in seven rehabilitated (2- to 20-year-old) and three native heathland reference sites of the Renison Goldfields Corporation (RGC) Mineral Sands operations at Eneabba, Western Australia. We employed a variety of collecting methods, including pitfall trapping, litter and soil sampling, sweeping and beating of vegetation, and collecting by hand in the day and after dark, replicating those used by previous researchers in a similar study conducted in the same area in 1980. We found a total of 96 ant species representing 30 genera in 1997, compared with 46 species from 18 genera in 1980. Ant species richness increased with age of rehabilitation and exceeded that of heath controls by the time it reached 11 years. Ant species richness related to rehabilitation age was represented by a logarithmic curve, and the slope for current rehabilitation was steeper than that for the earlier rehabilitation studied in 1980. This probably reflects improved rehabilitation practices. Ordination of the sites in terms of ant species composition indicated differences between ant species in the rehabilitated sites studied in 1980 and 1997, and also between all rehabilitated sites and heath controls. Classification of the sites in terms of the distribution of ants across functional groups also indicated differences between rehabilitation and heath control sites. According to species composition and functional group profiles from rehabilitated and control sites, we concluded that although the current rehabilitation allows for a rapid return of ant species, even after 20 years the fauna still had not attained the composition of the original heath fauna.
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spelling curtin-20.500.11937-103212018-09-25T01:45:12Z Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia Bisevac, L. Majer, Jonathan ants - survey - rehabilitation - mine sites - heathland - Western Australia We conducted a survey of ants in April 1997 in seven rehabilitated (2- to 20-year-old) and three native heathland reference sites of the Renison Goldfields Corporation (RGC) Mineral Sands operations at Eneabba, Western Australia. We employed a variety of collecting methods, including pitfall trapping, litter and soil sampling, sweeping and beating of vegetation, and collecting by hand in the day and after dark, replicating those used by previous researchers in a similar study conducted in the same area in 1980. We found a total of 96 ant species representing 30 genera in 1997, compared with 46 species from 18 genera in 1980. Ant species richness increased with age of rehabilitation and exceeded that of heath controls by the time it reached 11 years. Ant species richness related to rehabilitation age was represented by a logarithmic curve, and the slope for current rehabilitation was steeper than that for the earlier rehabilitation studied in 1980. This probably reflects improved rehabilitation practices. Ordination of the sites in terms of ant species composition indicated differences between ant species in the rehabilitated sites studied in 1980 and 1997, and also between all rehabilitated sites and heath controls. Classification of the sites in terms of the distribution of ants across functional groups also indicated differences between rehabilitation and heath control sites. According to species composition and functional group profiles from rehabilitated and control sites, we concluded that although the current rehabilitation allows for a rapid return of ant species, even after 20 years the fauna still had not attained the composition of the original heath fauna. 1999 Journal Article http://hdl.handle.net/20.500.11937/10321 10.1046/j.1526-100X.1999.72002.x restricted
spellingShingle ants - survey - rehabilitation - mine sites - heathland - Western Australia
Bisevac, L.
Majer, Jonathan
Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title_full Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title_fullStr Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title_full_unstemmed Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title_short Comparative study of ant communities of rehabilitated mineral sand mines and heathland, Western Australia
title_sort comparative study of ant communities of rehabilitated mineral sand mines and heathland, western australia
topic ants - survey - rehabilitation - mine sites - heathland - Western Australia
url http://hdl.handle.net/20.500.11937/10321