Phenetic and Genetic Variability of Continental and Island Populations of the Freshwater Copepod Mastigodiaptomus ha Cervantes, 2020 (Copepoda): A Case of Dispersal?
Periodo de realización: 1900/01/01 al 2021/01/01
Tipo: Artículo científico
Lugar(es) de estudio: Península de Yucatán
Resumen: "The diversity of freshwater zooplankton is still little known in Mexico, particularly in referenceto insular zooplankton communities. Diaptomid copepods (Crustacea: Copepoda: Calanoida)are a widespread group worldwide, and Mexico harbours high diaptomid diversity. Based on arecent sampling of freshwater zooplankton on a Caribbean Island of Mexico, we present the firstrecord of a diaptomid copepod from an island freshwater ecosystem. It shows the well-knowntendency of Neotropical diaptomids to have restricted distributional patterns and high levels ofendemism. The species recorded, Mastigodiaptomus ha (Cervantes-Martínez, 2020) appears to havea restricted distribution in the Yucatan Peninsula (YP), and the island as well. In order to explorepotential differences between the island and continental populations of this species, its phenetic andgenetic diversity was analysed by performing morphological comparisons and also by exploringdifferences of the habitat conditions and genetic sequences (CO1 gene). Our analysis revealed a low(average = 0.33%) genetic divergence between both populations"