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Nanorana yunnanensis

Source:IUCN

Taxonomy



 

Taxonomy in detail

Scientific name


 
Authority


 
Synonyms


 
Common names


 
Taxonomic sources
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Identification Information
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Taxonomic notes


 

Assessment Information

IUCN Red List Category and Criteria
Endangered A2acd ver 3.1
Assessment language
English
Year published
2004
Date assessed
2004-04-30 00:00:00 UTC

Assessment Information in detail

Previously published Red List assessments


 
Regional assessments
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Assessor(s)


 
Reviewer(s)


 
Contributor(s)
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Facilitator(s) / Compiler(s)
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Partner(s) / Institution(s)
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Authority / Authorities
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Justification
Listed as Endangered because of an observed population decline, estimated to be more than 50% over the last three generations, inferred from over-harvesting, observed shrinkage in distribution, and ongoing habitat destruction and degradation. The generation length is estimated to be five years.

Geographic Range

Native
Extant (resident)
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Extant
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Number of locations
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Geographic Range in detail

FAO Fishing Areas
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Estimated area of occupancy (AOO) (km²)
Continuing decline in area of occupancy (AOO)
Extreme fluctuations in area of occupancy (AOO)
Estimated extent of occurrence (EOO) (km2)
Continuing decline in extent of occurrence (EOO)
Extreme fluctuations in extent of occurrence (EOO)
Continuing decline in number of locations
Extreme fluctuations in the number of locationsN
RANGE DESCRIPTION
This species is known from south-western and central China in Sichuan, Yunnan, Guizhou, Hunan and possibly also Hubei Provinces. The only reasonably reliable records from mainland Southeast Asia are from Sa Pa (Bourret 1942, as Rana yunnanensis and R. phrynoides). Records from the Kakhien Hills of Myanmar may be a consequence of Bourret (1942) considering Paa feae a synonym. However, P. yunnanensis is recorded from most of Yunnan Province adjoining eastern Myanmar (Fei and Ye 1999). It probably occurs more widely than current records suggest. In China it is known from elevations of 1,500-2,950m asl, and in Viet Nam from 800-1,000m asl (Bourret 1942).

Population

Current population trend
Decreasing
Number of mature individuals
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Population severely fragmented
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Continuing decline of mature individuals
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Population in detail

Extreme fluctuations
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No. of subpopulations
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Continuing decline in subpopulations
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Extreme fluctuations in subpopulations
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All individuals in one subpopulation
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No. of individuals in largest subpopulation
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Description
Although there are no available data on the population status of Southeast Asian populations, in China it is a common species (though it has declined significantly).

Habitat and Ecology

System
Terrestrial|Freshwater (=Inland waters)
Number of mature individuals
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Continuing decline in area, extent and/or quality of habitat
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Generation length (years)
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Congregatory
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Movement patterns
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Habitat and Ecology in detail

Habitat and Ecology
It has been recorded from rocky streams in high mountains in closed-canopy forest and grassland, and has also been found in ditches. The eggs are laid under stones in streams.
Classification scheme
Habitats Suitability Major importance

Threats

Use trade
Residential & commercial development
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Agriculture & aquaculture
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Energy production & mining
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Transportation & service corridors
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Biological resource use
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Human intrusions & disturbance
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Natural system modifications
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Pollution
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Geological events
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Climate change & severe weather
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Threats in detail

Threats
Over-collecting for human consumption is the major threat to this species. It is also threatened by habitat destruction and degradation (caused by agricultural expansion), and water pollution.
Classification scheme Threats
title scope timing score severity

Use trade

Use trade

Text summary


Text summary in detail

Conservation Actions Information
It is present in several protected areas in China. The two localities in Viet Nam are within Hoang Lien Son National Park and Tam Dao National Park. Studies of the intensity of harvesting of this species are required, and there is a need to ensure that the offtake of this species from the wild for human consumption is managed sustainably. Further survey work is needed to determine the population status of populations in Southeast Asia, and there is also a need for further taxonomic work to clarify the taxonomic status of frogs in the genus present in mainland Southeast Asia and the Himalayan foothills.
About us
本项目由中国科学院A类战略先导专项“地球大数据科学工程”及中国科学院十三五信息化建设专项“科学大数据工程”提供支持,旨在整合物种的评估与保护信息,为生物多样性保护提供数据支持。
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