Mixophyes fleayi 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Myobatrachidae

Scientific Name: Mixophyes fleayi Corben & Ingram, 1987
Common Name(s):
English Fleay’s Barred-frog, Queensland Barred Frog
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6 (27 January 2014). New York, USA. Available at: (Accessed: 27 January 2014).

Assessment Information [top]

Red List Category & Criteria: Endangered B2ab(ii,iii,iv,v) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Harry Hines, Ed Meyer, David Newell, John Clarke, Jean-Marc Hero
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Endangered, because its Area of Occupancy is less than 500 km2, its distribution is severely fragmented, and there is continuing decline in its its Area of Occupancy, in the extent and quality of its habitat, in the number of subpopulations, and in the number of mature individuals.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species, an Australian endemic, is narrowly and disjunctly distributed in wet forests from the Conondale Range in south-east Queensland, south to Yabbra Scrub in north-east New South Wales (Hines, Mahony and McDonald 1999). While the majority of records for the species are from altitudes above 400m asl, it is also known from lowland rainforest (200m asl, Goldingay, Newell and Graham 1999; 90 and 150m asl, H. Hines and L. Shoo unpubl.).
Countries occurrence:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Corben (in McDonald 1991) reported declines in the Conondale Range in the late 1970s. Ingram and McDonald (1993) reported that the species has not been seen in the Conondale Range since the summer of 1990-1991. Since Ingram and McDonald’s (1993) review, targeted surveys have been undertaken (Hines, Mahony and McDonald 1999; Goldingay, Newell and Graham 1999). In Queensland, populations are currently known from the Conondale Range, Lamington Plateau and the northern section of Main Range, the Mount Barney area and Currumbin and Tallebudgera Creek below Springbrook Plateau (Hines, Mahony and McDonald 1999). Despite targeted surveys, there have been no records of the species from the extensively developed Mount Tamborine area since 1976 (Hines, Mahony and McDonald 1999). There is a museum specimen of this species collected from Bunya Mount in 1970 (H. Hines unpubl.); however, recent surveys have failed to locate the species in this area (H. Hines pers. comm.). In New South Wales the species is known from Lever’s Plateau (Border Ranges), Yabbra and Tooloom Scrubs, Mount Warning, Terania Creek in Nightcap Range and Sheepstation Creek in the Border Ranges (Mahony, Knowles and Pattinson 1997; Hines, Mahony and McDonald 1999). This species has disappeared from some locations, though whether populations have declined at other locations is difficult to assess due to a lack of information on the abundance of the species at historical sites (Hines, Mahony and McDonald 1999). The very low numbers recorded from many well-surveyed sites suggests that declines in abundance may have occurred (Hines, Mahony and McDonald 1999; Goldingay, Newell and Graham 1999).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Fleay’s barred-frog is associated with montane rainforest (Corben and Ingram 1987) and open forest communities adjoining rainforest (H. Hines pers. comm.). It occurs along stream habitats from first to third order streams (i.e. small streams close to their origin through to permanent streams with grades of 1 in 50) and is not found in ponds or ephemeral pools (Mahony, Knowles and Pattinson 1997). However, larvae may be found in isolated pools in dry creek beds, and adults may also be found in the vicinity of these pools. At some locations where the species has been recorded, riparian vegetation has been disturbed and replaced by weeds, although this is considered marginal habitat (Mahony, Knowles and Pattinson 1997). Breeding has been recorded in all months between July and March (Corben and Ingram 1987; H. Hines unpubl.). Males call from under leaf-litter, from exposed rocks in streambeds or from the edges of pools beside streams (Corben and Ingram 1987). Calling activity is related to temperature and stream conditions (W. O’Reilly and H. Hines unpubl.). Reproductive biology is very similar to that of Mixophyes balbus (Gillespie and Hines 1999). Both species construct a nest in the shallow running water that occurs between pools in relatively wide, flat sections of mountain streams (Knowles et al. 1998). Between 652 and 1290 (C. Morrison pers. comm.) eggs are deposited in a shallow excavation in the streambed or pasted directly onto bedrock (Knowles et al. 1998). This species does not appear to breed during and immediately after heavy rain when water flow is high, presumably due to the lack of suitable oviposition sites and the threat of nests and larvae being washed downstream (W. O’Reilly and H. Hines unpubl.). Larvae are described in Meyer, Hines and Hero (2001) and Anstis (2000).
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): The reason(s) for declines or disappearance of populations are not known. Large areas of the species’ habitat have been, and continue to be, degraded by feral animals (e.g. pigs in the Conondale Range), domestic stock, and invasion of weeds (i.e. Mistflower, Ageratina riparia and crofton weed A. adenophora) (Hines, Mahony and McDonald 1999). Upstream clearing, timber harvesting and urban development (e.g. Mount Tamborine) are all likely to have affected flow regimes and water quality (Hines, Mahony and McDonald 1999). A chytrid fungal infection has been identified as the cause of illness and death of this species on Main Range and Lamington Plateau (Berger et al. 1998). Populations tend to be characterized by low density and are often isolated from other populations (Hines, Mahony and McDonald 1999; Goldingay, Newell and Graham 1999). The stability of small populations and the effect of isolation on genetic variation within each population are unknown.

Conservation Actions [top]

Conservation Actions: This species is listed as endangered in Australian legislation. Much of its habitat is protected within national parks and state forests. Further research and monitoring is needed. It is bred in captivity in Australia.

Citation: Harry Hines, Ed Meyer, David Newell, John Clarke, Jean-Marc Hero. 2004. Mixophyes fleayi. The IUCN Red List of Threatened Species 2004: e.T13597A4222057. . Downloaded on 20 June 2018.
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