Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Panbiogeographical analysis of Costa Rican freshwater fishes
PDF

Keywords

Peces de agua dulce
biogeografía
PAE
análisis de trazos
Panbiogeografía
Costa Rica
Freshwater fishes
biogeography
Track Analysis
panbiogeography

How to Cite

Herrera Vásquez, J., Bussing, W., & Villalobos, F. (2008). Panbiogeographical analysis of Costa Rican freshwater fishes. Revista De Biología Tropical, 56(1), 165–. https://doi.org/10.15517/rbt.v56i1.5515

Abstract

Track analysis and Parsimony analysis of endemicity (PAE) were performed to analyze the distribution pattern of Costa Rican freshwater fishes. A basic matrix (presence/absence) was prepared using the distribution of 77 freshwater fish. The data were analyzed with CLIQUE software in order to find generalized tracks (cliques). Data also were analyzed with the software NONA and Winclada version 1.00.08 in order to perform the Parsimony Analysis of Endemicity (PAE). Fourteen equally probable cliques were found with 31 species in each and the intersection of the amount was selected as a generalized track dividing the country in two main zones: Atlantic slope from Matina to Lake Nicaragua and Pacific slope from the Coto River to the basin of the Tempisque River connected with some branches oriented to the central part of the country. PAE analysis found ten cladogram areas (72 steps, CI=0.45, RI=0.64), using the "strict consensus option" two grouping zones were identified: Atlantic slope and Pacific slope. Both PAE and Track Analysis show the division of the two slopes and the orientation of the generalized track suggests new biogeographical evidence on the influence of both old and new southern elements to explain the migrations of freshwater fish into Central America during two different geological events.
https://doi.org/10.15517/rbt.v56i1.5515
PDF

Comments

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2008 Revista de Biología Tropical

Downloads

Download data is not yet available.