Claudia Alejandra Medina

Instituto de Investigación de Recursos Biológicos Alexander von Humboldt · Ciencias Básicas de la Biodiversidad

RESUMEN Actualmente el territorio colombiano presenta más de 300 especies de escarabajos estercoleros (Coleoptera: Scarabaeidae: Scarabaeinae), sin embargo, no se conoce el estado actual de las especies endémicas o con rango restringido y tampoco las áreas con mayor endemismo en el país. En este estudio se realizó un detallado análisis utilizando r...

Se presenta el listado actualizado de las especies de escarabajos coprófagos Scarabaeinae de la región andina de Colombia. Incluye los resultados de los Archivos de Autoridad Taxonómica (AAT) y registros de especies nuevas provenientes de la revisión de la colección del Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)...

Dung beetles exhibit a wide range of trophic preferences, including soft and hard resources. The study of mouthparts associated with these resources is extensive, and mouthparts of these insects have generally been described as membranous, hairy, and poorly adapted to cutting hard food. In this study, we compare the mouthparts (epipharynx, labium,...

Recent declines of insect populations at high rates have resulted in the need to develop a quick method to determine their diversity and to process massive data for the identification of species of highly diverse groups. A short sequence of DNA from COI is widely used for insect identification by comparing it against sequences of known species. Rep...

Global warming is a great threat to biodiversity with negative impacts spanning the entire biological hierarchy. One of the main species’ traits determining survival at higher temperature is the thermal point at which an animal loses its ability to escape from deadly conditions (critical thermal maximum—CTmax). Variation in CTmax across species is...

A partir do Instituto Humboldt, estão sendo realizadas pesquisas que relacionam a diversidade e a atividade funcional dos escaravelhos biorrecicladores (Scarabaeinae) e os benefícios para a pecuária, com o objetivo de desenhar uma proposta de oferta tecnológica em pecuária sustentável. O piloto de pesquisa foi realizado na fazenda Chuguaca; Fazenda...

Recent declines of insect populations at high rates have resulted in the need to develop a quick method to determine their diversity and to process massive data for the identification of species of highly diverse groups. A short sequence of DNA from COI is widely used for insect identification by comparing it against sequences of known species. Rep...

Los patrones de diversidad en gradientes altitudinales han sido ampliamente estudiados a nivel de la riqueza de especies, determinados por factores ambientales que funcionan como filtros para las especies. Sin embargo, son pocos los estudios que evalúan la variación de la riqueza y composición en los gradientes de los Andes nororientales de Colombi...

Crónica que describe las visitas a las fincas ganaderas en las montañas de Colombia. Don José son los múltiples ganaderos que he conocido y de quienes he aprendido de este oficio popular de la ganadería. Se describe como es el muestreo de diversidad de escarabajos coprófagos en fincas ganaderas

Rapid development of remote sensing and LiDAR technology has refined estimates of tree architecture and extrapolation of biomass across large spatial scales. Yet, current biomass maps show significant discrepancies and mismatch to independent ground data. A potential obstacle to accurate biomass estimation is the loss of information on wood density...

Datos recopilados a partir de un censo rápido a meliponicultores.

La ganadería Chuguaca está compuesta por un grupo de fincas con cría de ganado normando para producción de leche en la zona andina central de Colombia. Esta ganadería está inmersa en una zona importante de conservación, restauración de suelos, y presencia de bosques andinos. La ganadería Chuguaca propende por mantener una producción eficiente con p...

Propuesta de una Oferta tecnológica en ganadería sostenible de alta montaña en Colombia, usando escarabajos coprófagos bio-recicladores y microorganismos del suelo Palabras Claves: Diversidad; Scarabaeinae, Estiércol bovino; Suelo; Gases de efecto invernadero En América Latina la actividad ganadera se está transformando. En Colombia, diversas estra...

No study with a socio-ecological perspective has been carried out at the basinlevel. From a river-basin perspective, it is possible to understand the ecological complexity of a region in relation to the drivers ofspecific changes to the zones that comprise the river basin. The benefits that biodiversity offers to communities inhabiting the Claro ri...

Meeting rising demand for oil palm whilst minimizing the loss of tropical biodiversity and associated ecosystem functions is a core conservation challenge. One potential solution is focusing the expansion of high-yielding crops on presently low-yielding farmlands alongside protecting nearby tropical forests that can enhance provision of ecosystem f...

Una evaluación ecológica rápida del ensamble de moscas necrófagas (Diptera, Calyptratae) se llevó a cabo en cuatro coberturas del paisaje antropizado del municipio de Viotá, Cundinamarca, Colombia. Noventa y siete individuos distribuidos en tres familias y ocho especies fueron recolectados en tan solo dos horas de muestreo. Los valores más altos de...

We present the dataset of passive acoustic sampling events deposited in the Colección de Sonidos Ambientales Mauricio Álvarez-Rebolledo at the Humboldt Institute (IAvH-CSA) during the years 2018–2019. The acoustic sampling events were generated from different projects, including Colombia Bio, Santander Bio, Boyacá Bio, Lisama, Riqueza Natural, and...

We present a review of Scatimus Erichson (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini: Scatimina) in Colombia, with the description of S. strenua new species from the Central Andes (Antioquia Department). Records of S. strandi Balthasar from southwestern Colombia (Caquetá and Nariño Departments) are validated. The distributions of S. ovatus H...

La nueva forma de hacer ganadería en Colombia, involucra el aumento de bosques alrededor de las pasturas, el uso de sistemas silvopastoriles, la conservación del suelo, la diversidad de escarabajos, así como reducción del uso de maquinaria y de insumos químicos. Esto asegurará una producción más eficiente de carne y leche, promoviendo la sostenibil...

Global warming is having impacts across the Tree of Life. Understanding species’ physiological sensitivity to temperature change and how they relate to local temperature variation in their habitats is crucial to determining vulnerability to global warming. We ask how species’ vulnerability varies across habitats and elevations, and how climatically...

A necrophagous flies ensemble (Diptera, Calyptratae) was rapidly assessed in four coverages of an anthropogenic landscape in the east range of the Colombian Andes. Ninety-seven individuals belonging to eight species were collected in only two hours of sampling. The highest diversity values and the occurrence of asynanthropic flies in the forest und...

Investigamos la fauna de escarabajos estercoleros asociados a los sistemas de ganadería sostenible en diferentes regiones biogeográficas de Colombia, con el propósito de determinar la fauna local de estercoleros asociada al paisaje ganadero. Se incluye un conjunto de datos con los registros de escarabajos estercoleros de la subfamilia Scarabaeinae,...

Efecto de prácticas agroecológicas sobre características del suelo en un sistema de lechería especializada del trópico alto colombiano Resumen Los sistemas de producción ganadera convencionales se basan en el uso de monocultivos, agroquímicos y desparasitantes (ivermectinas), que afectan el suelo limitando su potencial productivo. Las prácticas agr...

We present a public database at SIB Colombia, the product of several studies about the diversity and complementarity of a butterfly community (Lepidoptera: Papilionoidea) in the El Romeral reserve, a protected area located southwest of the Aburrá Valley on the Central Cordillera in the department of Antioquia, Colombia. We report 69 species, 40 gen...

Natural regeneration of abandoned farmland provides an important opportunity to contribute to global reforestation targets, including the Bonn Challenge. Of particular importance are the montane tropics, where a long history of farming, frequently on marginal soils, has rendered many ecosystems highly degraded and hotspots of extinction risk. Ants...

La Orinoquia colombiana se ubica al noroccidente del país, es considerada una importante región para el desarrollo agroindustrial a gran escala, pero con un profundo desconocimiento de su entomofauna. En este trabajo se presentan los resultados del análisis de completitud del inventario de los escarabajos de la subfamilia Scarabaeinae, grupo amplia...

Realidad Aumentada se refiere a lo grande que son los insectos, a lo grande, voluminoso y valioso que representa una colección entomológica, a lo enorme e importante que es la colección de Insectos del Instituto Alexander Von Humboldt

The carrion feeding-flies assemblage (Diptera, Calliphoridae, and Muscidae) was assessed in four coverages of a synanthropic landscape in the east range of the Colombian Andes. One hundred nineteen individuals belonging to eight species were collected in only three and a half hours sampling. A brief discussion about the flies and their environment...

Las colecciones biológicas en Colombia salvaguardan más de 30 millones de especímenes, de los cuales más de 25 millones son animales no vertebrados y cerca de un 12%están catalogados. Digitalizar la información asociada a los especímenes es un reto importante para sacar al público los miles de ejemplares almacenados. en el marco de las Expediciones...

Se realizó la caracterización del ensamblaje de escarabajos coprófagos en la cuenca alta y media del río Bita, en el marco de la alianza interinstitucional por el “Río Bita, protegido”. Los escarabajos fueron recolectados con trampas de caída, en 4 localidades del departamento del Vichada, entre enero y junio de 2016. El conjunto de datos contiene...

The dung beetle assemblage of the upper and middle basin of the Bita River was characterized in the interinstitutional framework alliance of “Río Bita, protegido (protected Bita River)”. The beetles were collected with pitfall traps in 4 locations in the department of Vichada, Colombia between January and June 2016. The dataset contains 1904 record...

A new species of Coelosis is described from the Macuira Mountains, Guajira Peninsula, northern Colombia. A character comparison between this new and other previously known Colombian species in the genus is presented. A key for the identification and distributional map for Colombian species of Coelosis is provided, as well as a key for the genera in...

The dung beetle assemblage of the subfamily Scarabaeinae were characterized, using the richness, abundance and conservation status from four localities in the Bita River drainage, department of Vichada, during both the dry and rainy seasons. Sampling was carried out using baited traps, mainly with human dung but also using dung of native animals, r...

Biological collections are sources of knowledge, particularly critical to understand life when they house specimens from megadiverse countries. However, the scientific value of biological collections is usually unknown because the lack of an explicit link between knowledge and specimens. Here we compiled 628 papers from 152 journals that used colle...

Durante la semana del 15 al 20 de diciembre del año 2015, el equipo de Colecciones Biológicas del Instituto Alexander von Humboldt (IAvH), realizó una caracterización rápida en tres Reservas Naturales de la Sociedad Civil: Cochahuaira, Buena Vista y Furatena, que en total suman un área de conservación de aproximadamente 15 ha. Las reservas están lo...

Se presenta el diagnóstico del estado de organización y conservación de la colección de escarabajos coprófagos (Scarabaeidae: Scarabaeinae) del Museo Entomológico Francisco Luis Gallego, de acuerdo con los diferentes niveles de curaduría del Índice de Salud de Colecciones (ISC). Se evaluaron 2405 especímenes con el fin de obtener información sobre...

El Instituto Humboldt, con la mision de realizar investigación que contribuya al conocimiento de la biodiversidad del país, promueve ejercicios de caracterización de los ecosistemas con prioritaridad para la conservación. El bosque seco tropical es considerado uno de los ecosistemas con mayores niveles de fragmentación y exclusividad biológica. En...

The catalog of type specimens of freshwater fishes deposited in the Colección de Peces Dulceacuícolas del Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH-P) is presented. This list includes 483 specimens in 65 lots representing 11 holotypes and 472 paratypes of 48 nominal species. Corrections, additions, and updating...

Given the dramatic loss of tropical forests and accelerating climate change, secondary forest regeneration is increasingly recognised as being an important method for reversing losses in biodiversity and carbon stocks. The recolonisation of biodiversity within secondary forests depends in part upon the recovery of forest structure, including the ra...

Tropical land-use change is a key driver of global declines in biodiversity and a major source of anthropogenic carbon emissions, yet there is a substantial shortfall in the funding available to tackle these issues. We urgently need mechanisms that can simultaneously tackle both biodiversity and carbon losses, with carbon-based payments for ecosyst...

A pesar del creciente número de investigaciones sobre el bosque seco colombiano y de algunos esfuerzos por compilar registros de sus especies, aún no es posible establecer mapas reales de distribución de su diversidad. Por tal razón, es necesario realizar muestreos sistemáticos de diferentes grupos biológicos y consolidar datos a escala nacional pa...

La expansión de la frontera agropecuaria genera fragmentación de paisajes, disminución de hábitats y pérdida de diversidad. En estos paisajes, los remanentes de vegetación ribereña son elementos que ayudan a mantener la biodiversidad. En este estudio se evaluó la hipótesis de que un remanente ribereño puede mantener una diversidad de escarabajos co...

The expansion of tropical agriculture is a major driver of the extinction crisis. A key question is whether biodiversity losses can be minimized by restricting future expansion to low‐productivity farmland and retaining forest fragments, especially in rapidly changing Neotropical landscapes. We investigated these methods in the context of avian phy...

The conversion of natural habitats to farmland is a major driver of the global extinction crisis [1, 2]. Two strategies are promoted to mitigate the impacts of agricultural expansion on biodiversity: land sharing integrates wildlife-friendly habitats within farmland landscapes, and land sparing intensifies farming to allow the offset of natural res...

The genus Mycetarotes is a fungus-growing ant (Formicidae: Myrmicinae: Attini) mostly recorded south of the Amazon: in southeastern Brazil, Paraguay, and northern Argentina. Here we report the first record of this genus in Colombia: M. parallelus (Emery, 1906). We collected the specimen using pitfall taps in oil palm plantations. The discovery of t...

The state of knowledge of the genus Ontherus Erichson 1847 in Colombia is reviewed and updated since the revision of the genus by Génier (1996), and the species list for Colombia of Medina et al. (2001). Two new distributional records for Colombia are confirmed; Ontherus politus Génier 1996 and Ontherus gilli Génier 1996. An updated species list of...

Collections of frozen tissue samples stand as keystone sources of molecular information to construct biodiversity knowledge, and are particularly challenged if they focus on megadiverse countries. In 1998 the Humboldt Institute (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt) began a tissue collection of Colombian biodiver...

ABSTRACT Collections of frozen tissue samples stand as keystone sources of molecular information to construct biodiversity knowledge, and are particularly challenged if they focus on megadiverse countries. In 1998 the Humboldt Institute (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt) began a tissue collection of Colombian...

Collections of frozen tissue samples stand as keystone sources of molecular information to construct biodiversity knowledge, and are particularly challenged if they focus on megadiverse countries. In 1998 the Humboldt Institute (Instituto de Investigación de Recursos Biológicos Alexander von Humboldt) began a tissue collection of Colombian biodiver...

Species persistence in human-altered landscapes can depend on factors operating at multiple spatial scales. To understand anthropogenic impacts on biodiversity, it is useful to examine relationships between species traits and their responses to land-use change. A key knowledge gap concerns whether these relationships vary depending on the scale of...

Oil palm agriculture is rapidly expanding in the Neotropics, at the expense of a range of natural and seminatural habitats. A key question is how this expansion should be managed to reduce negative impacts on biodiversity. Focusing on the Llanos of Colombia, a mixed grassland–forest system identified as a priority zone for future oil palm developme...

The inventory of dung beetles in Colombia has a relatively long sampling history, represented in local checklist and occasional survey records. However, there is no diagnosis on the completeness and environmental representativeness of Scarabaeinae samplings both at regional and national levels. A study like this is essential to address questions re...

The inventory of dung beetles in Colombia has a relatively long sampling history, represented in local checklist and occasional survey records. However, there is no diagnosis on the completeness and environmental representativeness of Scarabaeinae samplings both at regional and national levels. A study like this is essential to address questions re...

Two strategies are often promoted to mitigate the effects of agricultural expansion on biodiversity: one integrates wildlife‐friendly habitats within farmland (land sharing), and the other intensifies farming to allow the offset of natural reserves (land sparing). Their relative merits for biodiversity protection have been subject to much debate, b...

Climate change and biodiversity loss can be addressed simultaneously by well-planned conservation policies, but this requires information on the alignment of co-benefits under different management actions. One option is to allow forests to naturally regenerate on marginal agricultural land: a key question is whether this approach will deliver envir...

With the rapidly expanding ecological footprint of agriculture, the design of farmed landscapes will play an increasingly important role for both carbon storage and biodiversity protection. Carbon and biodiversity can be enhanced by integrating natural habitats into agricultural lands, but a key question is whether benefits are maximized by includi...

Descriptions of three new species of Cryptocanthon from Colombia are presented: Cryptocanthon andradei, Cryptocanthon buriticaorum and Cryptocanthon pulidoae. Illustrations of male habitus, external morphological characters, male genital including sclerites of the internal sac, and distribution maps for each species are provided. A key to the ident...

The external and internal male genitalia of 327 species of 11 tribes of the subfamily Scarabaeinae, including species of Deltochilini, Scarabaeini, Gymnopleurini, Ateuchini, and Coprini, among others, were examined. Descriptions of the variations in the genital segment, the aedeagus, the internal sac, and its sclerites and raspules are presented. A...

The external and internal male genitalia of 327 species of 11 tribes of the subfamily Scarabaeinae, including species of Deltochilini, Scarabaeini, Gymnopleurini, Ateuchini, and Coprini, among others, were examined. Descriptions of the variations in the genital segment, the aedeagus, the internal sac, and its sclerites and raspules are presented. A...

En esta guia de campo editada por Cenicafé se presenta el primer estudio de especies de escarabajos coprófagos unificado para la Ecorregión del Eje Cafetero en Colombia, con especial énfasis en la biología, taxonomía y ecología de las 44 especies más comunes y mejor conocidas de la región. La información compilada y analizada para la realización de...

A new genus of cynipid oak gallwasp, Zapatella Pujade-Villar & Melika, gen. n. (Hymenoptera: Cynipidae: Cynipini), with two new species, Zapatella grahami Pujade-Villar & Melika, sp. n. and Zapatella nievesaldreyi Melika & Pujade-Villar, sp. n., is described from the Neotropics. Zapatella grahami,known only from the sexual generation,induces galls...