Revista mexicana de biodiversidad
Print version ISSN 1870-3453
KOHLMANN, Bert et al. Biodiversity conservation in Costa Rica: a correspondence analysis between identified biodiversity hotspots (Araceae, Arecaceae, Bromeliaceae, and Scarabaeinae) and conservation priority life zones. Rev. Mex. Biodiv. [online]. 2010, vol.81, n.2, pp. 511-559. ISSN 1870-3453.
This paper undertook an analysis of the distribution of high species richness and areas of endemism based on plants (Araceae, Arecaceae, and Bromeliaceae) and dung beetles (Scarabaeinae) inhabiting the different Holdridge Life Zones of Costa Rica. Using a geographic information system (GIS) we analyzed biogeographic provinces, in terms of their representativity in sampling areas, life zones, and protected areas. Species richness and endemism maps served as a base for conducting a gap analysis and defining 6 different levels of high priority conservation areas. What percentages of these priority areas are under some type of protection or conservation scheme and which of these areas should be enlarged were also investigated. The degree of feasibility that these areas under protection have for enlargement is indicated. A list is included of all the aforementioned registered species for Costa Rica, as well as their presence in the different Holdridge Life Zones and their endemism status. Four areas with the highest species richness were identified, and 3 new areas of endemism are proposed. The most important conservation priority areas are the tropical wet forests on the northeastern lowlands, the Osa Peninsula region, and the premontane wet forest along the Guanacaste, Tilarán and Central mountain ranges. This study clearly demonstrates the need to include and compare different groups of organisms in biodiversity-endemism studies, in order to obtain more robust and finer-grained studies.
Keywords : high species richness areas; areas of endemism; life zones; representativity; Araceae; Arecaceae; Bromeliaceae; Scarabaeinae.