Cesar RojanoFundación Cunaguaro · Coordinador de proyectos de conservación y biodiversidad.
Cesar Rojano
DVM, MSc
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46
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Publications (46)
El fototrampeo es una herramienta útil para el estudio de especies crípticas como los Vermilin- gua. Sin embargo, su uso en este grupo de mamí- feros requiere de adaptaciones en los métodos de campo para utilizar las cámaras trampa en zonas donde usualmente no son instaladas, como el caso de los pastizales, potreros e incluso el dosel. En este capí...
Los sistemas de telemetría permiten generar información crucial sobre la ecología de las especies, incluyendo sus comportamientos, patrones de actividad, área de vida, uso de hábitat, entre otros. A partir de esta información es posible diseñar estrategias de conservación, e incluso es una herramienta de uso frecuente para la delimitación de áreas...
Los Vermilingua son un grupo fascinante de mamíferos que habitan en Centro y Suramérica. En Colombia están presentes cinco especies, distribuidas entre todas las regiones geográficas del país. En el presente capítulo se describe cada una de ellas, su historia natural, su distribución potencial y las amenazas que enfrentan.
Understanding species distribution to target biodiversity conservation actions in countries with high biodiversity, scarce data availability and low study sites accessibility is very challenging. These issues limit management and conservation actions even on charismatic and potentially conflictive species like large carnivores. We developed a geogr...
The absence of public protected areas in Casanare Colombia has led to strengthen conservation processes by private reserves (RNSC), where working together with local communities is the basis of biodiversity management. This study aimed to evaluate the richness and abundance of terrestrial mammals through a community-based monitoring program. During...
The Pastaza greater long-nosed armadillo (Dasypus pastasae) is a recently revalidated species and therefore poorly studied from South America. The natural history of this species is virtually unknown in the wild. Here, we describe ecological aspects of D. pastasaeincluding activity patterns, behavioral notes, endoparasite records, and diet informat...
The aim of this study was to describe histologically and histochemically the pancreas of three adult Hydrochoerus isthmius, attacked by feral dog in Buenavista, Córdoba, Colombia. A complete necropsy was performed and pancreatic fragments were collected and stored in 10% buffered formalin and Bouin liquid. Then, they were dehydrated, diaphanized an...
Las carreteras generan impactos negativos sobre la biodiversidad, dentro de los cuales los atropellamientos configuran una de las causas directas más relevantes. El objetivo de este estudio fue establecer la distribución temporal y evaluar los patrones espaciales relacionados con el atropellamiento de vertebrados silvestres en las rutas Yopal-Quebr...
Se determinó la presencia de parásitos gastrointestinales en el tracto gastrointestinal
de 100 hicoteas de la especie Trachemys callirostris ingresadas al Centro de Atención y
Valoración de Fauna Silvestre (CAV), Córdoba, Colombia, durante los años 2009 y 2010,
como producto de decomisos del tráfico ilegal de animales silvestres. Los tractos
gastro...
Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across...
Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across...
El presente estudio se realizó con 20 animales en cautiverio y retrospectivamente se analizaron 120 historias clínicas las cuales contenían la valoración inicial del animal y reportes de pruebas paraclínicas. Los animales fueron restringidos químicamente usando ketamina (12 mg/kg) + midazolam (0.2 mg/kg) y xilacina (0.1 mg/kg) en combinación en una...
Durante los días 5 y 9 de abril de 2018, entre las 17h00 y 18h00 aproximadamente, se realizaron avistamientos de un individuo macho aislado con signos compatibles con acariasis severa en la misma localidad (9°31ʼ47,215ˮN-75°21ʼ06,185ˮW; 165,7 msnm; Figura 1). Durante la primera observación, el individuo se encontró dentro de una oquedad formada ent...
The aim of this study was to provide information about the ecology and threats of the northern tamandua (Tamandua mexicana) in the Caribbean region of Colombia. Linear transects were performed to estimate the population density. Similarly, the frequency of road collisions was determined by monitoring a total of 1,356 km of the Vía Parque Nacional N...
The northern tamandua (Tamandua mexicana) in the Colombian Caribbean: contributions on its ecology and threats Abstract The aim of this study was to provide information about the ecology and threats of the northern tamandua (Tamandua mexicana) in the Caribbean region of Colombia. Linear transects were performed to estimate the population density. S...
Se determinaron los endoparásitos de 11 osos hormigueros gigantes (Myrmecophaga tridactyla) y dos osos meleros (Tamandua tetradactyla) presentes en zonas ganaderas del municipio de Pore, Casanare, Colombia. Serecolectaronmuestras desangrey heces dehormiguerosgigantesanestesiados encampo, mientras que las muestras de heces de osos meleros fueron rec...
69 samples from Trachemys callirostris were collected in situ and ex situ, to determine their hematological parameters, to compare these values (considering sex, age, and condition), and to establish the morphology of their cells. Blood was collected from the jugular vein of the animals. Hematocrit, hemoglobin concentration, total counts of erythro...
Revista CES Medicina Veterinaria y Zootecnia / Volumen 9 / Número 1 / enero – junio de 2014/ ISSN 1900-9607 Álvarez Otero G et al. Histopatología de órganos y lesiones en hicoteas Trachemys callirostris callirostris Histopathology of organs and lesions in capive Colombian slider turtles (Trachemys callirostris callirostris) from Cordoba, Colombia ¤...
69 samples from Trachemys callirostris were collected in situ and ex situ, to determine their hematological parameters, to compare these values (considering sex, age, and condition), and to establish the morphology of their cells. Blood was collected from the jugular vein of the animals. Hematocrit, hemoglobin concentration, total counts of erythro...
A postmortem evaluation of 41 T. callirostris kept in captivity during the year 2009 was conducted at CAV-CVS Wildlife Care Center. The evaluation was performed in animals confiscated as a result of illegal trafficking. Histopathological examination of main organs and lesions was conducted in all animals. External clinical examination was also cond...
Los osos hormigueros (Pilosa: Vermilingua) son de los mamíferos más antiguos que habitan en Suramérica. En Colombia se encuentran presentes las cuatro especies descritas para este grupo: el oso palmero (Myrmecophaga tridactyla), la tamandúa del norte (Tamandua mexicana), la tamandúa del sur (Tamandua tetradactyla) y el hormiguero de seda (Cyclopes...
The aim of this study was to identify the use and perceptions that the communities of Pedraza, Magdalena, Colombia give to Myrmecophaga tridactyla, Tamandua mexicana, Choloepus hoffmanni, Bradypus variegatus and Dasypus novemcinctus, with the purpose of gathering information to establish adequate awareness strategies. Semi-structured random surveys...
