A5075068612- Avian ecology and behavior
- Bird parasitology and diseases
- Vector-borne infectious diseases
- Plant biochemistry and biosynthesis
- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Lepidoptera: Biology and Taxonomy
- Genetic diversity and population structure
- Animal Behavior and Reproduction
- Neurobiology and Insect Physiology Research
- melanin and skin pigmentation
- Viral Infections and Vectors
- Evolution and Paleontology Studies
- Scarabaeidae Beetle Taxonomy and Biogeography
- Wildlife Ecology and Conservation
- Animal Vocal Communication and Behavior
- Fish biology, ecology, and behavior
- Biochemical Analysis and Sensing Techniques
- Marine and coastal plant biology
Universidad del Valle
2019-2024
University of California, Los Angeles
2015
Industrial University of Santander
2014
Institute of the Environment
2009
Abstract Aim We used mitochondrial DNA sequence data to reconstruct the phylogeny of a large clade tanagers (Aves: Thraupini). this Neotropical bird group identify areas vicariance, ancestral zoogeographical and elevational distributions, investigate correspondence geological events speciation events. Location The species investigated are found in 18 22 regions South America, Central America Caribbean islands; therefore, we were able use address biogeographical history entire region. Methods...
Abstract The northern Andes, with their steep elevational and climate gradients, are home to an exceptional diversity of flora fauna, particularly rich in avian species that have adapted divergent ecological conditions. With this comes the opportunity for parasites exploit a wide breadth hosts. However, little research has focused on examining patterns prevalence lineage Andes. Here, we screened total 428 birds from 19 (representing nine families) identified 133 infections haemosporidia...
Manakins (Pipridae) are well know for elaborate male sexual displays and ornate plumage coloration, both of which thought to have evolved as a consequence lekking breeding, the prevalent mating system in family. Less attention has been paid handful ‘drab’ manakin species, dimorphism appears be reduced or absent. Using character reconstruction, we show that these ‘exceptions rule’ represent phylogenetically independent cases losses dimorphism, such could provide focal group investigate link...
La estructura genética de poblaciones mariposas con distribución en islas y sus pares continentales ha sido poco documentada para el neotrópico. Este estudio presenta la caracterización una población Heliconius sara Isla Gorgona, ubicada región del Pacífico Oriental Colombiano. Para esto se examinaron secuencias parciales un marcador mitocondrial incluyendo información obtenida GenBank. Se comparó diversidad conespecíficos también congéneres, los que comparte ancestro común cercano clado...
Abstract Island-mainland systems serve as natural laboratories for studying communication signals. We explored potential divergence in the song of black-crowned antshrike between Gorgona Island, a land-bridge island off Pacific coast Colombia, and several mainland populations. found that perching this species, so called loudsong, was distinctly different on Island. This differentiation encompassed an increase frequency bandwidth, decrease vocal performance, reduction duration. All are...
La variación genética entre las poblaciones insulares y continentales de la hormiga cortadora hojas Atta cephalotes ha sido poco estudiada, a pesar su importancia para comprender capacidad dispersión, estructura regional distribución una especies más abundantes en el neotrópico. Objetivo: Analizar población insular esta un contexto amplio América Central del Sur. Métodos: Se secuenció gen Citocromo oxidasa I isla Gorgona continente realizar análisis varianza molecular, selección modelos...
Melanism in plumage color is often associated to the single nucleotide polymorphism of melanocortin-1-receptor (MC1R). Despite striking association between substitution a Glutamic-acid by for Lysine at position 92 on MC1R protein and completely black plumage, an in-depth understanding effect missense mutations conformational change behavior lipid bilayer caused absence crystal structure lacking. We examine structural basis receptor activation using DNA sequences from GenBank perform...
En un nuevo areal de distribución las aves son organismos ideales para estudiar el ajuste los individuos a su entorno y potencial efecto sobre eventos la reproducción. Realizamos observaciones sistemáticas describir del ciclo reproductivo Melanerpes rubricapillus efectuando seguimiento actividad dentro fuera cavidad anidación. Se suman dos nuevas especies lista árboles utilizadas por este carpintero excavación sus nidos. Dos cuatro parejas anidantes produjeron volantones, en una pareja se...