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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Identification of priority areas for plant conservation in Madagascar using Red List criteria: Rare and threatened Pandanaceae indicate sites in need of protection
ORYX, Volume 41, No. 2, Year 2007
Notification
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Description
A major problem in establishing effective protocols for conserving Madagascar's biodiversity is the lack of reliable information for the identification of priority sites in need of protection. Analyses of field data and information from herbarium collections for members of the plant family Pandanaceae (85 spp. of Pandanus; 6 spp. of Martellidendron) showed how risk of extinction assessments can inform conservation planning. Application of IUCN Red List categories and criteria showed that 91% of the species are threatened. Mapping occurrence revealed centres of richness and rarity as well as gaps in Madagascar's existing protected area network. Protection of 10 additional sites would be required to encompass the 19 species currently lacking representation in the reserve network, within which east coast littoral forests are particularly under represented and important. The effect of scale on assessments of risk of extinction was explored by applying different grid cell sizes to estimate area of occupancy. Using a grid cell size within the range suggested by IUCN overestimates threatened status if based solely upon specimen data. For poorly inventoried countries such as Madagascar measures of range size based on such data should be complemented with field observations to determine population size, sensitivity to disturbance, and specific threats to habitat and therefore potential population decline. The analysis of such data can make an important contribution to the conservation planning process by identifying threatened species and revealing the highest priority sites for their conservation. © 2007 FFI.
Authors & Co-Authors
Callmander, Martin W.
United States, St. Louis
Missouri Botanical Garden
Switzerland, Neuchatel
Université de Neuchâtel
Schatz, George E.
United States, St. Louis
Missouri Botanical Garden
Lowry, Porter P.
United States, St. Louis
Missouri Botanical Garden
France, Paris
Museum National D'histoire Naturelle
Laivao, Michel Omer
Madagascar, Antananarivo
Missouri Botanical Garden Antananarivo
Raharimampionona, Jeannie
Madagascar, Antananarivo
Missouri Botanical Garden Antananarivo
Andriambololonera, Sylvie R.
Madagascar, Antananarivo
Missouri Botanical Garden Antananarivo
Raminosoa, Tantely
Madagascar, Antananarivo
Missouri Botanical Garden Antananarivo
Consiglio, Trisha K.
United States, St. Louis
Missouri Botanical Garden
Statistics
Citations: 112
Authors: 8
Affiliations: 5
Identifiers
Doi:
10.1017/S0030605307001731
ISSN:
00306053
e-ISSN:
13653008
Study Design
Cross Sectional Study
Study Locations
Madagascar