Crinia subinsignifera
Copyright © Hal Cogger
Distribution map
Distribution Map of Crinia subinsignifera
Copyright © Hal Cogger
Status
IUCN Classification:
Not listed
(International Union for Conservation of Nature)
Bioregion occurrence:
(this is not a distribution map)
State occurrence:
Links
- Small Western Froglet
AmphibiaWeb page on Crinia subinsignifera
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Crinia subinsignifera
Family: Myobatrachidae
Common name: Small Western Froglet
Description: The colour patterns of this frog vary a lot between individuals. They can range from black through shades of brown to grey. The patterning on the back can be:
- light coloured with black sides
- grey to brown with dark patches
- a dark band down the spine with bordering brown and grey stripes
- light coloured with an incomplete band down the spine between longitudinal skinfolds and black sides
The throat and chest of males is dark grey to brown. The belly is granular and blotched black and white. The skin on the back varies in texture from smooth to warty and may even have raised folds like ridges. The fingers and toes have no webbing.
Size: 25 mm
Habitat: This frog lives in temporary swamps and marshes north of the karri forest and along the coast further east.
Call: A long, low "squelch". Call available in 
Windows Media or 
Quicktime audio. Recording Copyright © Dale Roberts.
Similar species: This frog can be distinguished from Crinia pseudinsignifera by its call which is a distinctive bleat.
Conservation Information
Suspected threatening processes
- Salinisation
- Herbicides, insecticides, eutrophication due to excessive nutrients
- Habitat modification (e.g. vegetation clearing, invasive weeds)
Population size: An estimate of the total number of adults present in the species entire range is >50000 individuals. Factors affecting population size and distribution are unknown or unsubstantiated.
Population trend in Australia over the past 50 years: Population size stable or suspected to be stable or increasing.
Knowledge of population trend in Australia: Not currently monitored.
Population concentration: Not known to concentrate or exist in discrete locations. (e.g. the number of sites in which individuals group together either seasonally, such as breeding sites, or they may occupy discrete habitat patches within the broader landscape, such as discrete water bodies or drainage units.)
Ongoing management activities in Australia: None directed primarily at the taxon.
Reproductive potential for recovery: The average number of eggs deposited per adult female per year is 51-200 eggs/female/year. Minimum age at which females are known or suspected to first reproduce is <2 years.
Range size in Australia: The size of the geographic area over which the taxon is distributed: 1001-80000 km² (up to 1% area of Australia or about the area of Tasmania).
Distribution trend: Area occupied has declined by < 25%. (This is an estimate of change in the portion of the total range that is occupied or utilised; it may not equal the change in total range.)
Knowledge of distribution in Australia: Broad range limits or habitat associations are known, but local occurrence cannot be predicted accurately.
References
Barker, J., G.C. Grigg and M.J. Tyler. 1995. A Field Guide to Australian Frogs. Surrey Beatty & Sons: Chipping Norton.
Cogger, H.G. 2000. Reptiles and amphibians of Australia. Reed Books: Sydney.