Oscar Mahecha-J.Jagiellonian University | UJ · Zoological Division of the Nature Education Centre
Oscar Mahecha-J.
PhD MSc Biologist
Associate professor, Universidad Distrital F.J.C., Bogotá-Colombia
About
19
Publications
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Introduction
I am a Biology teacher from Universidad Distrital F.J.C, Colombia; a Master in Biology Sciences from Universidad de los Andes, Colombia, and Ph.D. in Biology at Universidad Nacional de Colombia. I am a Research Associate at the Nature Education Centre, Jagiellonian University, Poland. I am interested in studying evolution, phylogenetic systematics, species delimitation, biogeography, diversity patterns (genetic, taxonomic, functional, and phylogenetic), assessment methods, and conservation.
Publications
Publications (19)
Los Lepidoptera de la subtribu Pronophilina Reuter, 1896 se encuentran ampliamente distribuidas en la región Neotropical, específicamente en los ecosistemas altoandinos/páramos. Estos, en las últimas décadas se han visto altamente afectados por diversas actividades antrópicas, logrando alterar la relación biocenosis-biotopo. Por lo tanto, es de vit...
A comparative analysis of high-Andean Pierina was carried out, including a total of 25 species. Based on morphological evidence, with an emphasis on venation and genitalia and molecular data, using three genetic markers, we confirm the recent subjective synonymy of the generic names Tatochila Butler, 1870, Piercolias, Staudinger, 1894, Hypsochila U...
Diet composition is a fundamental aspect of a species’ life history and provides it possible to distinguish the conditions of its habitat. This study describes the diet composition of individuals of the Dotted Tree Frog (Boana punctate) at two sites
of the Eastern Andes, in Miravalles-Meta, Colombia. Stomach flushing was performed on 161 specimens....
A new genus of Neotropical Satyrinae butterflies, Viloriodes Pyrcz & Espeland gen. n. is described in the Pedaliodes Butler complex comprising 11–13 genera and more than 400 species. Support for the new genus is provided by a phylogenetic analysis based on target enrichment (TE) data including 618 nuclear loci with a total of 248,940 nucleotides, a...
The Huancabamba Deflection in the Andes of northern Peru and southern Ecuador is a pivotal area for Neotropical biogeography, where exceptional biodiversity coincides with high rates of endemism. These characteristics are well illustrated within the montane butterfly genus Manerebia Staudinger (Nymphalidae, Satyrinae). Here, six new, apparently end...
The tribe Junoniini is a predominantly Paleotropical group of the cosmopolitan butterfly subfamily Nymphalinae (Nymphalidae), with highest diversity in the Afrotropical region. Its systematics and relationships are not entirely resolved. Question marks remain concerning the validity of some genera; and the apparently close relationship between the...
Two new species of the genus Manerebia Staudinger, 1897 (Nymphalidae, Satyrinae) are described from paramo habitat on the eastern slopes of the Colombian Eastern Cordillera in the area of Pisba and La Colorada: Manerebia bernito n. sp. and Manerebia clarita n. sp. Both are morphologically most similar to Manerebia levana and Manerebia pervaga, and...
A new species of Protopedaliodes Viloria & Pyrcz, a satyrine butterfly genus endemic to the highest part of the Guyana Shield, P. arekuna Pyrcz & Stachowicz n. sp., is described from the summit area, ca. 2400 m, of Tramen Tepui, an isolated mountain situated on the Venezuela–Guyana border. It is a remarkable finding as it is probably a narrow endem...
Faunal structure, species relationships and distribution patterns of Pronophilina butterflies, a Neotropical montane section of the Satyrinae (Nymphalidae), of 5 isolated north Andean massifs —Cordillera de Mérida, Sierra El Tamá, Sierra Nevada de Santa Marta, Cordillera de la Costa and Sierra de Perijá— are analyzed from the island biogeography pe...
Resumen: Son pocos los estudios aracnológicos sobre los bosques de galería de Colombia, un hábitat que en los últimos años se ha visto afectado por actividades como la ganadería, agricultura extensiva y urbanización, causantes de la pérdida de biodiversidad en el país. Por tal motivo, el objetivo de este estudio es contribuir al estudio de la diver...
La variación estacional puede afectar tanto a la estructura del hábitat como a la disponibilidad de recursos, lo que puede generar diferentes respuestas de las especies animales como las mariposas. Por tal razón, se planteó evaluar el efecto de la variación temporal en el ensamblaje de mariposas en la cuenca de la Calaboza, Casanare, Colombia, te-n...
Los humedales en los últimos años han presentado un deterioro debido a los diferentes procesos antrópicos que se han generado por eventos urbanísticos, como es el caso de los humedales presentes en el municipio de Soacha, Cundinamarca, los cuales se están viendo afectados por el desarrollo de las grandes ciudades, al establecerse diversos asentamie...
A systematic review of the Neotropical butterfly genus Orophila Staudinger, 1886 based on morphological characters and geographical distribution is presented. Four species are recognized: O. campaspe (Hewitson, 1869) stat. rest., O. cardases (Hewitson, 1869), O. cecidas (Hewitson, 1869) stat. rest. and O. diotima (Hewitson, 1852). Other changes pro...
A study of butterflies diversity of in a landscape of tropical dry forest in the Mesa de los Santos (Santander),
taking 36 days of sampling data was conducted between the months of IX-XI-2014, at the time of highest rainfall. The specimens were collected with entomological net and six Van Someren-Rydon baited traps, at three altitudinal bands (280-...
Las mariposas diurnas son reconocidas principalmente por su función ecológica como polinizadoras; son consideradas bioindicadores, puesto que permiten la evaluación de las transformaciones en los ecosistemas naturales producidos por los diferentes factores antrópicos. No obstante, se desconoce la riqueza de especies de mariposas diurnas de muchas z...
En este estudio se reporta la asociación ectosimbionte entre platelmintos del género Temnocephala y protozooarios epibiontes del género Epystilis en chinches acuáticos gigantes de la especie Lethocerus delpontei. Los chinches fueron colectados en el municipio de La Mesa, Cundinamarca, Colombia, en Mayo del 2013, por medio de colectas manuales en di...
This research found that diversity and structure of Lepidoptera communities varies according to the habitats both in the piedmont plains and flood savanna of the Orinoco in Colombia. Sampled sites in the piedmont zone have greater similarity both in species richness and representativeness of some taxonomic groups, and there is also the presence of...
A sampling of the tribe Pronophilini (Nymphalidae, Satyrinae) was carried out along an altitudinal gradient between 2600 and 3200 m in a forest reserve in Bogota, characterized by a strong habitat anthropogenization on one of the slopes. The goal was to evaluate the effect of fragmentation and altitude on the patterns of Pronophilini diversity, dis...
Projects
Projects (2)
Se busca conocer los patrones Biogeográficos y de Diversidad de las mariposas de montaña y de Piedemonte en el Neotrópico, con énfasis en Colombia.
The Neotropical region is the most biologically diverse area on earth for most organisms and numerous studies have identified the world’s longest mountain range, the Andes, as a major centre of biodiversity and source for adjacent areas. The goal is to study the taxonomy, biology, ecology, biogeography, evolution, systematics and conservation of the butterflies of the neotropical region (all families of Rhopalocera). Anyone can participate and contribute their work on butterflies. Let's make this project an easy and quick reference source to share work and knowledge about the butterflies of the neotropical region.
