| Citation |
IUCN SSC Amphibian Specialist Group 2018. Chiromantis trilaksonoi. The IUCN Red List of Threatened Species 2018: e.T89187170A95510159. http://dx.doi.org/10.2305/IUCN.UK.2018-1.RLTS.T89187170A95510159.en. Downloaded on 07 May 2019. |
Description |
Geographic Range
NATIVE
Extant (resident)
Indonesia (Jawa)
NUMBER OF LOCATIONS
1-5
UPPER ELEVATION LIMIT
400 metres
LOWER ELEVATION LIMIT
191 metres
Geographic Range in detail
Population
CURRENT POPULATION TREND
Decreasing
NUMBER OF MATURE INDIVIDUALS
POPULATION SEVERELY FRAGMENTED
CONTINUING DECLINE OF MATURE INDIVIDUALS
Population in detail
EXTREME FLUCTUATIONS
NO. OF SUBPOPULATIONS
CONTINUING DECLINE IN SUBPOPULATIONS
EXTREME FLUCTUATIONS IN SUBPOPULATIONS
ALL INDIVIDUALS IN ONE SUBPOPULATION
NO. OF INDIVIDUALS IN LARGEST SUBPOPULATION
DESCRIPTION
At each locality, only a few individuals have been found at a time (M. Munir and A. Riyanto pers. comm. May 2017). While this species is somewhat adaptable, due to continuing decline in the extent and quality of habitat, the population is suspected to be decreasing.
Habitat and Ecology
SYSTEM
Terrestrial
HABITAT TYPE
Artificial/Terrestrial
GENERATION LENGTH (YEARS)
CONGREGATORY
MOVEMENT PATTERNS
Not a Migrant
CONTINUING DECLINE IN AREA, EXTENT AND/OR QUALITY OF HABITAT
Yes
Habitat and Ecology in detail
HABITAT AND ECOLOGY
This species has mainly been found in paddy fields perched on paddy plants (Riyanto and Kurniati 2014). It has also been found in palm oil plantations (M. Munir and A. Riyanto pers. comm. May 2017). Calling is heard during rainy season, but in dry season it is very difficult to detect (M. Munir and A. Riyanto pers. comm. May 2017). Its breeding strategy is unknown, however it is expected to breed in streams by larval development as with other congeners.
CLASSIFICATION SCHEME
Habitats Suitability Major importance
14. Artificial/Terrestrial 14.1. Artificial/Terrestrial - Arable Land Suitable
14.3. Artificial/Terrestrial - Plantations Suitable
Threats
Residential & commercial development
Housing & urban areas
Pollution
Agricultural & forestry effluents
Threats in detail
THREATS
Pollution from pesticide use is a threat to this species. While this species is found in some disturbed habitats, land cover changes are also a problem and the habitat at the type locality has been converted to human settlements (M. Munir pers. comm. December 2017).
CLASSIFICATION SCHEME
Threats Timing Stresses Scope Severity Impact score Invasive species Virus
1. Residential & commercial development 1.1. Housing & urban areas Ongoing
1. Ecosystem stresses 1.1. Ecosystem conversion
1.2. Ecosystem degradation
Low Impact: 3
9. Pollution 9.3. Agricultural & forestry effluents 9.3.3. Herbicides and pesticides Ongoing
2. Species Stresses 2.1. Species mortality |
