Astacopsis gouldi Clark in streams of the Gog Range, northern Tasmania: the effects of catchment disturbance

Growns, IO

doi:10.26749/rstpp.129.1

Cited by 4 publications

(3 citation statements)

References 2 publications

(2 reference statements)

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“…upstream) (Horwitz, 1994). The riparian zone is a source of woody debris, food and shade, and is also important for maintaining water quality (Growns, 1995;Threatened Species Section, 2006). As sediments, nutrients and woody debris are carried downstream, it is expected that upstream (and not just adjacent) riparian vegetation is important.…”

Section: Model Structurementioning

confidence: 98%

Habitat suitability modelling of rare species using Bayesian networks: Model evaluation under limited data

Hamilton

Pollino

Jakeman

2015

Ecological Modelling

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Section: Model Structurementioning

confidence: 98%

Habitat suitability modelling of rare species using Bayesian networks: Model evaluation under limited data

Hamilton

Pollino

Jakeman

2015

Ecological Modelling

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“…Astacopsis gouldi was listed as 'vulnerable' by IUCN (Wells, Pyle & Collins, 1983), with several subsequent ecological studies (Horwitz, 1994(Horwitz, , 1995Growns, 1995) resulting in its status being upgraded to 'endangered' (IUCN, 1996). The species is protected under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 and the Tasmanian Threatened Species Protection Act 1995.…”

Section: Introductionmentioning

confidence: 99%

Cryptic genetic divergence in the giant Tasmanian freshwater crayfish Astacopsis gouldi (Decapoda: Parastacidae): implications for conservation

Sinclair

Madsen

Walsh³

et al. 2010

Animal Conservation

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The giant Tasmanian freshwater crayfish Astacopsis gouldi prized by fisherman, is the world's largest freshwater invertebrate. Astacopsis gouldi is known only from river drainages in northern Tasmania. A narrow distribution, pollution of habitat and over-harvesting has led to the rapid decline of populations and subsequent loss from a number of drainages. We collected mitochondrial DNA sequences to assess population structure and genetic diversity from throughout the species' distribution. We found a lineage from north-eastern Tasmania, which was genetically divergent compared with the remaining distribution in north-western Tasmania. Populations from the remaining distribution, including haplotypes found across a noted faunal barrier (Tamar River), were genetically homogeneous with o1% sequence divergence. This finding is concordant with a hypothesis of more interconnected drainages associated with lower sea levels in the past. The new cryptic lineage from north-east Tasmania requires further investigation and may be of extremely high conservation value. Conservation efforts for A. gouldi, combining habitat restoration with in situ management of wild populations and some population augmentation into once occupied rivers, will also have a positive impact for conservation of freshwater ecosystems in northern Tasmania.

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“…This diverse fauna includes the world's largest freshwater invertebrate, Astacopsis gouldi, which reaches weights of over 5 kg. This species (Horwitz & Hamr, 1988;Horwitz, 1994a;Growns, 1995) and more than one-quarter of these Australian freshwater crayfishes are considered to be in need of conservation efforts (Horwitz, 1995;Merrick, 1995Merrick, , 1997.…”

Section: Introductionmentioning

confidence: 99%

Biogeographic regionalization of Australia: assigning conservation priorities based on endemic freshwater crayfish phylogenetics

Whiting

Lawler

Horwitz

et al. 2000

Animal Conservation

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There are many methods available for evaluating conservation priorities. Traditional methods of species richness, genus richness and critical species counts were compared with newer methods of phylogenetic and genetic diversity. Conservation priorities for areas designated by the Interim biogeographic regionalisation for Australia (Thackway & Cresswell, 1995) were assessed on the basis of the freshwater crayfish fauna of Australia. Distributions for all crayfish species were taken from the literature, and plotted in the IBRA areas. Species and genus richness, as well as the number of rare or endangered species were calculated for each area. A phylogeny of 35 representative crayfish based on 16 S rDNA sequence data was used to assess phylogenetic and genetic diversity of species and genera. Methods of species richness and phylogenetic diversity agreed to a large extent in their ranking of areas, both methods agreed that the north-west coast of Tasmania and the south-eastern portion of the continent were of highest priority for conserving the greatest amount of diversity. These results differ greatly from high priority areas based on other taxonomic groups, emphasizing the importance of broad taxonomic and ecological sampling in making conservation decisions. † All correspondence to: K. A

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Astacopsis gouldi Clark in streams of the Gog Range, northern Tasmania: the effects of catchment disturbance

Cited by 4 publications

References 2 publications

Habitat suitability modelling of rare species using Bayesian networks: Model evaluation under limited data

Habitat suitability modelling of rare species using Bayesian networks: Model evaluation under limited data

Cryptic genetic divergence in the giant Tasmanian freshwater crayfish Astacopsis gouldi (Decapoda: Parastacidae): implications for conservation

Biogeographic regionalization of Australia: assigning conservation priorities based on endemic freshwater crayfish phylogenetics

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