The limnology of a naturally acidic tropical water system in Australia II. Dry season characteristics

Brown, T. E.; Morley, A. W.; Koontz, D. V.

doi:10.1080/03680770.1983.11897636

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“…Descriptions of the region's climate and billabong limnology are given by Hart & MacGregor (1980), Walker & Tyler (1982, Morley et al (1985) and Brown et al (1985), and will be only summarized here.…”

Section: Description Of Study Areamentioning

confidence: 99%

“…The monsoon rainfall pattern produces two types of environmental disturbance which might cause rarefaction: periodic wet season flood peaks, and a dry season deterioration of water quality (Walker & Tyler, 1982;Brown et al 1985). In Georgetown, a flood peak in March 1981 eradicated all profundal benthic fauna except I.: angasi.…”

Section: Possible Causes Of High Diversity In the Magela Creek Benthosmentioning

confidence: 99%

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Possible causes of high species diversity in tropical Australian freshwater macrobenthic communities

Outridge¹

1987

Hydrobiologia

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A total of 133 benthic macroinvertebrate species was recorded in four permanent freshwater lagoons (billabongs) and a stream riffle in the Magela Creek catchment, Northern Territory, Australia. 101 species were lentic in occurrence. Each billabong supported at least as many species as larger tropical and Australian temperate lakes, and was an exception to the species-poor status of Australian lentic macrobenthic communities.> 98% of the total benthic biomass was contributed by a mussel species; the remaining species' combined standing crop was an order of magnitude lower than in other lentic systems, further highlighting the diversity of the Magela benthos. Rarefaction (removal of organisms) and predictable environmental heterogeneity, both related to monsoonal variations in flow and water quality, were probably important determinants of the high diversity of these communities.

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Section: Description Of Study Areamentioning

confidence: 99%

Section: Possible Causes Of High Diversity In the Magela Creek Benthosmentioning

confidence: 99%

Possible causes of high species diversity in tropical Australian freshwater macrobenthic communities

Outridge¹

1987

Hydrobiologia

View full text Add to dashboard Cite

show abstract

The limnology of a naturally acidic tropical water system in Australia II. Dry season characteristics

Cited by 1 publication

References 0 publications

Possible causes of high species diversity in tropical Australian freshwater macrobenthic communities

Possible causes of high species diversity in tropical Australian freshwater macrobenthic communities

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