Post by Surroundx on Mar 3, 2018 6:43:18 GMT 1
Scientific Name: Schoenoplectiella perrieri (Cherm.) Lye
Synonym(s):
Schoenoplectus perrieri (Cherm.) J. Raynal
Scirpus perrieri Cherm.
Taxonomic Source(s): 2003. Lidia. 6(1): 26.
Assessment Information [top]
Red List Category & Criteria: Critically Endangered B2ab(iii,v) ver 3.1
Year Published: 2017
Date Assessed: 2016-04-12
Assessor(s): Rabarimanarivo, M. & Ravololomanana, N.
Reviewer(s): Rajaonary, F. & Faranirina, L.
Contributor(s): Andriambololonera, S.
Justification:
The species has a restricted range with an estimated area of occupancy of 9 km² where it is present in one location. The only known subpopulation does not occur inside protected area and experiences continuing decline due to negative impacts in its habitat from agriculture, water management and climate change (drying up of lake). It is therefore assessed as Critically Endangered. Further field research and monitoring for this species is recommended.
Geographic Range [top]
Range Description: The species is endemic to Madagascar, known only from a single locality around Mahajanga city (Boeny region), the elevation is estimated post facto to be less that 100 m Asl (Madagascar Catalogue, 2016).
Countries occurrence:
Native:
Madagascar
Additional data:
♦ Estimated area of occupancy (AOO) - km2: 9
♦ Number of Locations: 1
♦ Upper elevation limit (metres): 100
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: The species is known only from one subpopulation. The most recent collection was made in 1933 around Mahajanga city (Madagascar Catalogue, 2016).
Current Population Trend: Decreasing
Additional data:
♦ Continuing decline of mature individuals: Yes
Habitat and Ecology [top]
Habitat and Ecology: This emerged herb grows in the edge of the lake (Madagascar Catalogue, 2016).
Systems: Freshwater
Continuing decline in area, extent and/or quality of habitat: Yes
Use and Trade [top]
Use and Trade: There is no information on the use or trade of this species.
Threats [top]
Major Threat(s): The species is threatened by habitat destruction due to agriculture, water management and climate change (drying up of lake).
Conservation Actions [top]
Conservation Actions: This species is not present within any Protected Area network. No conservation actions for the species are known.
Source: www.iucnredlist.org/details/summary/88513694/0
Synonym(s):
Schoenoplectus perrieri (Cherm.) J. Raynal
Scirpus perrieri Cherm.
Taxonomic Source(s): 2003. Lidia. 6(1): 26.
Assessment Information [top]
Red List Category & Criteria: Critically Endangered B2ab(iii,v) ver 3.1
Year Published: 2017
Date Assessed: 2016-04-12
Assessor(s): Rabarimanarivo, M. & Ravololomanana, N.
Reviewer(s): Rajaonary, F. & Faranirina, L.
Contributor(s): Andriambololonera, S.
Justification:
The species has a restricted range with an estimated area of occupancy of 9 km² where it is present in one location. The only known subpopulation does not occur inside protected area and experiences continuing decline due to negative impacts in its habitat from agriculture, water management and climate change (drying up of lake). It is therefore assessed as Critically Endangered. Further field research and monitoring for this species is recommended.
Geographic Range [top]
Range Description: The species is endemic to Madagascar, known only from a single locality around Mahajanga city (Boeny region), the elevation is estimated post facto to be less that 100 m Asl (Madagascar Catalogue, 2016).
Countries occurrence:
Native:
Madagascar
Additional data:
♦ Estimated area of occupancy (AOO) - km2: 9
♦ Number of Locations: 1
♦ Upper elevation limit (metres): 100
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: The species is known only from one subpopulation. The most recent collection was made in 1933 around Mahajanga city (Madagascar Catalogue, 2016).
Current Population Trend: Decreasing
Additional data:
♦ Continuing decline of mature individuals: Yes
Habitat and Ecology [top]
Habitat and Ecology: This emerged herb grows in the edge of the lake (Madagascar Catalogue, 2016).
Systems: Freshwater
Continuing decline in area, extent and/or quality of habitat: Yes
Use and Trade [top]
Use and Trade: There is no information on the use or trade of this species.
Threats [top]
Major Threat(s): The species is threatened by habitat destruction due to agriculture, water management and climate change (drying up of lake).
Conservation Actions [top]
Conservation Actions: This species is not present within any Protected Area network. No conservation actions for the species are known.
Source: www.iucnredlist.org/details/summary/88513694/0
