A5052200948- Evolution and Paleontology Studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Ecology and Vegetation Dynamics Studies
- Freshwater macroinvertebrate diversity and ecology
- Species Distribution and Climate Change
- Mollusks and Parasites Studies
- Genetic diversity and population structure
- Plant and soil sciences
- Wildlife Ecology and Conservation
- Parasitic Diseases Research and Treatment
- Plant and animal studies
- Mosquito-borne diseases and control
- Genomics and Phylogenetic Studies
- Viral Infections and Vectors
- Animal Ecology and Behavior Studies
- Plant Diversity and Evolution
- Plant Taxonomy and Phylogenetics
- Fish biology, ecology, and behavior
- Conservation, Biodiversity, and Resource Management
- Morphological variations and asymmetry
- Environmental and Cultural Studies in Latin America and Beyond
- Forensic Entomology and Diptera Studies
- Amphibian and Reptile Biology
- Diptera species taxonomy and behavior
- Invertebrate Taxonomy and Ecology
Industrial University of Santander
2012-2025
Universidad Autónoma de Bucaramanga
2023
Abstract The problem of character weighting in cladistic analysis is revisited. finding that, large molecular data sets, removal third positions (with more homoplasy) decreases the number well supported groups has been interpreted by some authors as indicating that methods are unjustified. Two arguments against interpretation advanced. Characters collectively determine few well‐supported may be highly reliable when taken individually (as shown specific examples), so inferring greater...
Abstract Aim The study aimed to establish areas of endemism and distribution patterns for Neotropical species the genus Piper in Andean regions by means parsimony analysis endemicity (PAE) track‐compatibility analysis. Location area includes region Northern (Páramo‐Punan subregion). Methods We used information from herbarium specimens recent monographic revisions 1152 Neotropics. First, a PAE was attempted order delimit endemism. Second, we performed . Terminology grouping is based on...
Abstract: Phylogenetic diversity measures rank areas for biodiversity conservation priorities based on information encoded in phylogenies (cladograms). The goal of these ranks is to consider as many factors possible that provide additional taxic information, such taxa richness, distributional patterns, area endemicity, and complementarity between areas. At present there are phylogenetic including node‐based, genetic‐distance, feature‐based measures. We devised a modified node‐based index we...
Phylogenetic Diversity (PD) is a crucial metric in evolutionary and conservation studies; however, its dependence on branch-length information can be source of uncertainty. Branch Length Evaluation for analysis (BLEPD) free open-source R program used to quantify the uncertainty PD calculations caused by varying branch length information. It offers two main approaches: resampling lengths within phylogenetic tree, modifying individual lengths. By comparing initial selected areas after or...
BACKGROUND The works of Lutz & Neiva, published 115 years ago in the Memórias do Instituto Oswaldo Cruz, are pioneering for study Neotropical Tabanidae. These studies emphasised importance biological collections and description species from exploration South American areas. Dasybasis Macquart, 1847 has traditionally been considered a large genus tabanids restricted to Australasian, Neotropical, Andean regions. exhibit high degree morphological similarity, making specific differentiation...
The weevil subtribe Listroderina belongs in the tribe Rhytirrhinini (subfamily Cyclominae), and has 25 genera 300 species Americas. distributional history of this was reconstructed applying dispersal-vicariance analysis (DIVA) using its as terminals. results suggest that originated within an area presently represented by Central Chile, Paramo, Puna, Patagonia Subantarctic subregions Andean region. Posteriorly, affected extinctions confined to Paramo subregions. Later, dispersals took place...
Abstract We described the histology and morphology of vaginal–cloacal region in 18 species from 12 Squamata families. This comparative study revealed a wide variation cloacal morphology. Fifteen morphological characters were considered to be primary homology hypotheses optimized over topology derived parsimony analysis available soft evidence, including this study. The synapomorphies for are bifid urodaeum, common urodaeal cavity with similar histological features horns, presence glands...
Abstract Aim To demonstrate that parsimony analysis of endemicity (PAE) is not analogous to a cladistic biogeographical analysis. Location We used six data sets from previously published studies around the world. Methods In order test efficiency PAE in recovering historical relationships among areas, we performed an empirical comparison nodes recovered with PAE, primary Brooks (BPA), and event‐based method using three models (maximum codivergence, reconciled trees, default model treefitter...
Abstract Aim Understanding the impact of land use change within assemblages is fundamental to mitigation policies at local and regional scale. Here, we aim quantify how site‐level terrestrial are responding in Colombia a mega‐diverse country project future biodiversity under different scenarios associated with climate policies. Location (northern South America). Methods We collated original data from 17 publications (285 sites) that examined human affects Colombia. From each site estimated...
The Amazon has high biodiversity, which been attributed to different geological events such as the formation of rivers. Old and Young hypotheses have proposed regarding date basin. Different studies historical biogeography support model, however, most use secondary calibrations or are performed at population level, preventing evaluation a possible older Here, we evaluated fit molecular phylogenetic biogeographic data previous models age fluvial system. We reconstructed time-calibrated...
Simulium (Hearlea) Vargas, Mart nez Palacios, & D az N jera 1957 is comprised of 20 known species that are largely confined to the area between M xico and Guatemala. Herein, all currently recognized within this subgenus described, illustrated, keyed (except males), subjected phylogenetic analysis. Geographic distributions for each also updated. deleoni 1945, synonymized with S. capricorne De Le n, 1944. paracarolinae new species, from Guatemala, described larva. A cladistic analysis...
Abstract: Amazonia is a highly threatened rainforest that encompasses major proportion of Earth's biological diversity. Our main goal was to establish conservation priorities for Amazonia's areas endemism on the basis measures evolutionary distinctiveness. We considered two previously identified sets endemism. The first set consisted eight large used traditionally in biogeographical studies: Belém, Tapajós, Xingu, Guiana, Rondônia, Imeri, Inambari, and Napo. second 16 smaller were...
Panbiogeography represents an evolutionary approach to biogeography, using rational cost-efficient methods reduce initial complexity locality data, and depict general distribution patterns. However, few quantitative, automated panbiogeographic exist. In this study, we propose a new algorithm, within geometrical framework, perform panbiogeographical analyses as alternative more traditional methods. The algorithm first calculates minimum spanning tree, individual track for each species in...
Dengue virus type 3 (DENV-3) re-appeared in Colombia 2001 after 23 years of apparent absence, the state Santander North-eastern region near to Venezuelan border. In 2002, was isolated Valle del Cauca South-east Ecuadorian/Peruvian border, and Antioquia North-east Panama To gain insight into molecular epidemiology DENV-3 Colombia, we sequenced complete E gene 21 isolates sampled period 2001-2007. Phylogenetic analyses revealed that Colombian strains seem have been introduced from Venezuela,...
A cladistic analysis of Simulium (Trichodagmia) sensu Crosskey and Howard, using 34 morphological characters larvae (6 characters), pupa (5) adults (23), yields nine most parsimonious trees under equal weights (length 101 steps CI 0.49 RI 0.73). Successive weighting based on the maximal rescaled consistency index preferred one (31.37 0.62 0.87 total fitcon3= 235.8), which was also two found implicit with concavity values 3–6. The cladogram justifies recognition subgenera. stricto (containing...
The genus Eleutherodactylus contains a large number of species and groups that have had notoriously difficult taxonomy. Morphometric analyses open new approaches perspectives to evaluate morphological characters in the taxonomic context. statistical were applied differentiate taxonomically seven co-occur an Andean cloud forest (six these belonging unistrigatus group). Fifty one evaluated determine those best separate groups. Using morphometric we able discriminate among defined priori....
This catalogue presents 256 species distributed in 32 genera, six tribes and three subfamilies recorded to Colombia. For each we present the available geographical information most important references.
The phylogeny of the genus Pelecorhynchus Macquart (Diptera: Pelecorhynchidae) was analyzed using three genes, cytochrome oxidase I, 28S ribosomal DNA, and CAD5, with 112 morphological characteristics. A total 59 specimens (13 outgroups 46 ingroups) were included in analysis. monophyly Pelecorhynchidae recovered under all analyses, Glutops Burgess as sister group s.l., while Pseudoerinna jonesi (Cresson) group. Within there are main clades unresolved affinities. Clade I formed by P....
Discutimos algunos tópicos que a nuestro entender son controvertidos del trabajo de Escalante (2011). Tantola definición PAE como las clasificaciones los tipos propuestas por la autora, no reflejan exactamentela propuesta autores originales. La defensa autora hace críticas se han hecho PAE, creemosque está justificada. El argumento utiliza para descalificar estas contradice con respecto una delas propone el PAE. método histórico, tiene objetivo descubrimiento derelaciones entre áreas. De...
Introduction: Between 1998 and 2008 all dengue virus serotypes circulated in the Departamento de Santander, an endemic region northeastern Colombia. No information is available as to role of serotype 1 (DENV-1) with respect epidemiology dengue.Objective: To analyze relationship between changes DENV-1 predominance genetic diversity, prevalence others occurrence severe dengue.Methods: Virus diversity was studied by phylogenetic analysis comparing E gene sequences from 12 viral strains. Data...
Abstract Faith and Trueman [Syst. Biol. (2001) 331] recently proposed “Profile Parsimony” (PP) as a new form of phylogenetic analysis, but it is equivalent to the Implied Weights (IW) method when certain functions are used. The PP cannot accommodate missing/inapplicable cells and/or multistate characters. Finally we demonstrate that, defined, scores not random, there no need generate random trees by Trueman.