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The palm flora of Braulio Carrillo National Park, Costa Rica

by Chazdon, R.L.
Publisher: 1989ISSN: 0304-3711.Subject(s): PALMAE | FLORA | BIODIVERSIDAD | SINECOLOGIA | PARQUES NACIONALES | COSTA RICA | PALMAE | FLORA | BIODIVERSITY | SYNECOLOGY | NATIONAL PARKS | COSTA RICA | PALMAE | FLORE | BIODIVERSITE | SYNECOLOGIE | PARC NATIONAL | COSTA RICA In: Brenesia (Costa Rica) (no.28) p. 107-116Summary: The results are presented from a preliminary survey of the palm species of the Braulio Carrillo National Park and the adjacent La Selva Biological Station, and the altitudinal ranges of the species. A total of 56 palm species are known. Three generacontributed over half of the species within this area: Chamaedorea (15 species), Geonoma (10 species), and Bactris (10 species). Along the altitudinal transect from 35 to 2050 m, palm species diversity decreased with increasing altitude. Decreases in species diversity reflected changes in species composition as well as the attrition of lowland species at higher altitudes. A major transition in palm species was observed between 1000 and 1500 m, but not between other pairs of adjacent sites. Most of the species occurring along the altitudinal transect are also known from other areas of Costa Rica. For many of these species, however, Braulio Carrillo National Park and La Selva Biological Station may be the only areas within their geographical range that areprotected from deforestation.
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The results are presented from a preliminary survey of the palm species of the Braulio Carrillo National Park and the adjacent La Selva Biological Station, and the altitudinal ranges of the species. A total of 56 palm species are known. Three generacontributed over half of the species within this area: Chamaedorea (15 species), Geonoma (10 species), and Bactris (10 species). Along the altitudinal transect from 35 to 2050 m, palm species diversity decreased with increasing altitude. Decreases in species diversity reflected changes in species composition as well as the attrition of lowland species at higher altitudes. A major transition in palm species was observed between 1000 and 1500 m, but not between other pairs of adjacent sites. Most of the species occurring along the altitudinal transect are also known from other areas of Costa Rica. For many of these species, however, Braulio Carrillo National Park and La Selva Biological Station may be the only areas within their geographical range that areprotected from deforestation.

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