Dataset Information

A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colombia.

ABSTRACT: Hemibryconsanjuanensis, new species, is described from the upper San Juan River drainage, Pacific versant, Colombia. It is distinguished from Hemibryconboquiae, Hemibryconbrevispini, Hemibryconcairoense, Hemibryconcolombianus, Hemibryconmikrostiktos, Hemibryconmetae, Hemibryconpalomae, Hemibryconrafaelense and Hemibrycontridens by the presence of a circular or oblong humeral spot that is located two scales posterior to the opercle (vs. 3-4 scales in Hemibryconpalomae, Hemibryconrafaelense, Hemibryconbrevispini and Hemibryconcairoense, and 0-1 scales, in Hemibryconmetae and Hemibryconboquiae). It further differs from Hemibryconcolombianus in having a round or oblong humeral spot (vs. rectangular). It differs from Hemibryconbeni, Hemibrycondariensis, Hemibrycondivisorensis, Hemibryconhelleri, Hemibryconhuambonicus, Hemibryconinambari, Hemibryconjabonero, Hemibryconjelskii, Hemibryconmikrostiktos, Hemibryconpolyodon, Hemibryconquindos, Hemibryconraqueliae, Hemibryconsantamartae, Hemibryconsurinamensis, Hemibrycontaeniurus, Hemibrycontridens, and Hemibryconyacopiae in having melanophores on the posterior margins of the scales along the sides of body (vs. lacking melanophores on margins of scales along entire length of the sides of body). The new species differs from all congeners mentioned above in having, among other features, six teeth in the outer premaxillary row arranged in a straight line (vs. five or fewer teeth not arranged in straight line except Hemibryconcairoense with two to six teeth in the outer premaxillary row).

SUBMITTER: Roman-Valencia C

PROVIDER: S-EPMC4258741 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colombia.

Román-Valencia César C Ruiz-C Raquel I RI Taphorn Donald C DC García-Alzate Carlos A CA

ZooKeys 20141114 454

Hemibryconsanjuanensis, new species, is described from the upper San Juan River drainage, Pacific versant, Colombia. It is distinguished from Hemibryconboquiae, Hemibryconbrevispini, Hemibryconcairoense, Hemibryconcolombianus, Hemibryconmikrostiktos, Hemibryconmetae, Hemibryconpalomae, Hemibryconrafaelense and Hemibrycontridens by the presence of a circular or oblong humeral spot that is located two scales posterior to the opercle (vs. 3-4 scales in Hemibryconpalomae, Hemibryconrafaelense, Hemib ...[more]

PMID: 25493068

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Project description:Meteorological factors influence dengue virus ecology by modulating vector mosquito population dynamics, viral replication, and transmission. Dynamic modeling techniques can be used to examine how interactions among meteorological variables, vectors and the dengue virus influence transmission. We developed a dengue fever simulation model by coupling a dynamic simulation model for Aedes aegypti, the primary mosquito vector for dengue, with a basic epidemiological Susceptible-Exposed-Infectious-Recovered (SEIR) model. Employing a Monte Carlo approach, we simulated dengue transmission during the period of 2010-2013 in San Juan, PR, where dengue fever is endemic. The results of 9600 simulations using varied model parameters were evaluated by statistical comparison (r2) with surveillance data of dengue cases reported to the Centers for Disease Control and Prevention. To identify the most influential parameters associated with dengue virus transmission for each period the top 1% of best-fit model simulations were retained and compared. Using the top simulations, dengue cases were simulated well for 2010 (r2 = 0.90, p = 0.03), 2011 (r2 = 0.83, p = 0.05), and 2012 (r2 = 0.94, p = 0.01); however, simulations were weaker for 2013 (r2 = 0.25, p = 0.25) and the entire four-year period (r2 = 0.44, p = 0.002). Analysis of parameter values from retained simulations revealed that rain dependent container habitats were more prevalent in best-fitting simulations during the wetter 2010 and 2011 years, while human managed (i.e. manually filled) container habitats were more prevalent in best-fitting simulations during the drier 2012 and 2013 years. The simulations further indicate that rainfall strongly modulates the timing of dengue (e.g., epidemics occurred earlier during rainy years) while temperature modulates the annual number of dengue fever cases. Our results suggest that meteorological factors have a time-variable influence on dengue transmission relative to other important environmental and human factors.

Dataset Information

A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colombia.

Publications

A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colombia.

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