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Abstract Detail


Tropical Biology Section

Salazar, Jackeline [1], León, Yolanda [2], Santiago-Valentin, Eugenio [3], Herrera, Dimitri [4], Mateo, Amelia [5], Martínez, Nirzka [6], Rodriguez, Rosa [7], Pichardo, Fritz [8].

Tabebuia species from Hispaniola: An example of radiation and endemism of the family Bignoniaceae in the Greater Antilles.

Tabebuia is a Neotropical genus of woody species widely used as medicinal, ornamental, honey plant, and for wood. The genus is the largest of the family Bignoniaceae, with a great proportion of its species in the Greater Antilles, specially in the islands of Cuba and Hispaniola. Hispaniola has around 76% of endemism in this genus, representing one of the best examples of species radiation of the Hispaniolan flora. The genus exhibits a striking variety of ecological adaptations that include arid tropical forests, coastal forests, humid and dry tropical forests on dog-tooth limestone rocks, savannas, pine forests, seasonally-dry tropical forests on limestone and serpentinite, tropical rainforests, montane forests, and mixed pine-broadleaf cloud forests. These species can be found on the island from sea level up to 2,000m asl. Data from herbarium specimens and from field collections was analyzed using GIS (Geographical Information Systems) to define the distribution and ecological conditions of each species in the genus Tabebuia in Hispaniola. GIS data of precipitation, geology, vegetation, and topography were correlated to the distribution of each species. This information is important to establish the conservation status of these species and the biogeography of the genus on the island.


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1 - Universidad Autónoma de Santo Domingo (UASD), Escuela de Biología, UASD, Zona Universitaria, Santo Domingo, DN, Dominican Republic.
2 - Universidad INTEC, Laboratorio de Percepción Remota,, Universidad INTEC, Santo Domingo, DN, Dominican Republic
3 - Herbario del Jardín Botánico, Universidad de Puerto Rico, Administracion Central, Apartado 364984, San Juan, PR, 00936-4984, Puerto Rico
4 - Facultad de Ciencias, Universidad Autónoma de Santo Domingo (UASD), Geografía, Santo Domingo, Dominican Republic.
5 - Universidad Autónoma de Santo Domingo (UASD), Biología, Santo Domingo, Dominican Republic.
6 - Universidad de Puerto Rico, Departamento de Biología,, Departamento de Biología, Universidad de Puerto Rico, Río Piedras, Puerto Rico
7 - Universidad Autónoma de Santo Domingo (UASD), Escuela de Biología,, UASD, Zona Universitaria, DN, Dominican Republic.
8 - Universidad Autónoma de Santo Domingo (UASD) Zona Universitaria, DN, D, Escuela de Biología, Santo Domingo, DN, Dominican Republic.

Keywords:
Tabebuia
GIS
Hispaniola
Bignoniaceae
Greater Antilles.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM
Number: PTB001
Abstract ID:407


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