Adriana Jerez

Universidad Nacional de Colombia. · Departamento de Biología

-Gymnophthalmoidea es un clado compuesto por las familias Alopoglossidae, Teiidae y Gymnophthalmidae. La distribución geográfica de tierras bajas a altoandinas, la existencia de especies pequeñas y muy grandes y la evolución de formas con alargamiento corporal y reducción de extremidades hacen de este grupo un modelo único para explorar el desarrol...

Anolis lizards have evolved morphologies in response to different selective factors related to microhabitat use. Morphological diversity exhibits evolutionary patterns that reveal similarities and unique regional traits among the mainland and island environments and among Greater Antilles and Lesser Antilles islands. In the Greater Antilles and mai...

Las variaciones ontogenéticas en el cráneo ofrecen información del crecimiento y la ecología trófica en Crocodilia. Por lo tanto, analizamos las variaciones ontogenéticas de la forma y elementos óseos del cráneo en C. c. fuscus. Encontramos un efecto alométrico y cambios en la forma, ya que varía de un cráneo longirostrino en las crías a uno brevir...

As most neotropical pipids, the four species of Pipa present in Colombia are poorly understood despite their particular biology. The tegument of these New-World pipids presents particular structures which variations have been hardly analyzed. Therefore, we aim to describe the morphological variations of the dermal flap, barbels, fingertips, and the...

Nota divulgativa sobre Anolis onca en la Guajira https://anoliscolombia.wixsite.com/website/notas

Studies on the biology of Caiman crocodilus have drawn attention to its biology with emphasis on systematic, taxonomy and ecology. However, anatomical aspects, such as skull characteristics, have not been studied in detail throughout its geographic range. In this study the skull characteristics for C. crocodilus subspecies, C. c. fuscus, C. c. chia...

Nota divulgativa sobre el uso del microhábitat en dos especies de Anolis y el estilo locomotor. https://anoliscolombia.wixsite.com/website/notas

Estados de desarrollo en Anadia bogotensis: aportes a la comprensión de la evolución del plan corporal en Gymnophthalmoidea (Squamata) ABSTRACT Embryonic development in Anadia bogotensis and body plan evolution in Gymnophthal-moidea (Squamata). Gymnophthalmoidea lizards inhabit in Central and South America from lowlands to highland Andes. This cl...

Anolis lizards have been a model of study in ecomorphology in the Caribbean islands because species with the same type of microhabitat share similar morphological features. But despite their great diversity, little is known about continental species. We analyzed the relationship between the anatomical characteristics of the appendicular skeleton an...

We studied the postnatal development of the skull of Noctilio leporinus, examining the relationship between ectocranial elements, including shape changes and sutures closure and fusion. Most shape changes and structure development were observed at subadults and adults; zygomatic arch, sagittal crest, occipital process and mandibular processes devel...

Material no académico con pautas para la observación de fauna. También contiene al final, afiches con la fauna representativa del Guaviare (anfibios, reptiles y mamíferos).

Catálogo sobre la herpetofauna de San José del Guaviare en venta en la Editorial UN, Universidad Nacional de Colombia, Sede Bogotá. https://www.uneditorial.com/bw-anfibios-y-reptiles-del-municipio-de-san-jose-del-guaviare-guaviare-colombia-guia-de-campo-del-instituto-de-ciencias-naturales-n-24-veterinaria-y-zootecnia.html

Afiches con la herpetofauna más representativa del municipio de San José del Guaviare, Colombia

The hindlimbs allow bats to attach to the mother from birth, and roost during independent life. Despite the great morphological diversity in Chiroptera, the hindlimbs morphology and its postnatal development have been poorly studied. Postnatal development of hindlimbs in Noctilio leporinus is described, further comparing the morphology of adults wi...

Estimamos el patrón y tasa de crecimiento de individuos de Anadia bogotensis bajo condiciones de cautiverio y climáticas similares a las que experimentan los individuos en poblaciones silvestres. Obtuvimos huevos de nidos comunales de esta especie provenientes de una localidad del municipio de La Calera, Cundinamarca, los cuales fueron incubados en...

Nesting in tropical highlands is challenging due to the fluctuations of temperature, including extreme cold, and humidity. For most reptiles in the highland tropical region the thermal and hydrological profiles of nests have not been described, and it is therefore uncertain how future climate change may affect this ontogenetic stage. We monitored 1...

The hindlimbs in bats are functionally adapted to serve as a hook to attach to the mother from birth, and to roost during independent life. Although bats exhibit different terrestrial locomotion capabilities involving hindlimbs, hindlimb morphology and postnatal development have been poorly studied. We describe in detail the postnatal development a...

Amphibians are one of the most threatened groups of vertebrates whose populations are declining due to many reasons including, among others, the presence of chemicals associated with human intervention and in particular, with agriculture. These chemicals are deposited where amphibian larvae develop provoking morphological abnormalities in different...

En el mes de Junio de 2016 se llevó a cabo el taller de educación en turismo para la naturaleza en el Municipio de San José del Guaviare, con el apoyo del Sistema de Investigación y Extensión de la Universidad Nacional de Colombia, sede Bogotá.

The systematics of the Americans skinks of the genus Mabuya have been extensively studied, with new arrangements based on molecular analysis. However, the skeletal morphology, their development and ontogenetic variation have been poorly studied in this genus. We described the embryonic skull development of three species of Mabuya and compare it wit...

En el marco del Plan Operativo Anual (2015) del Programa de Ciencias de la Biodiversidad del Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, se llevó a cabo la actualización de la evaluación del riesgo de extinción y la elaboración del Libro rojo de reptiles de Colombia (2015). Esta iniciativa se llevó a cabo con el aval d...

Cranial suture closures, major changes in skull shape, and the relation between the ectocraneal skull elements are examined through a qualitative study for the common vampire bat Desmodus rotundus. Most sutures remain long open, followed by abrupt changes in its morphology and development, acquiring more complex interdigitated shapes and fusing bon...

To analyze the features of the body plan of Mabuya sp., the structural characteristics of its skeleton are described and compared with other African scincids and are discussed in the context of the evolution of scincids in America and the evolution of body forms in Squamata. The taxon Mabuya sp. exhibits cranial traits that are different from Afric...

The study of cranial design and development in Gymnophthalmidae is important to understand the ontogenetic processes behind the morphological diversity of the group and to examine the possible effects of microhabitat use and other ecological parameters, as well as phylogenetic constraints, on skull anatomy. Complete morphological descriptions of em...

Jerez, A., Mangione, S. and Abdala, V. 2010. Occurrence and distribution of sesamoid bones in squamates: a comparative approach.—Acta Zoologica (Stockholm) 91: 295–305 Sesamoids are defined as skeletal elements that develop within a continuous band of regular dense connective tissue (tendon or ligament) adjacent to an articulation or joint. In this...

Topological and histological analyses of Mabuya mabouya embryos at different developmental stages showed an extraembryonic membrane sequence as follows: a bilaminar omphalopleure and progressive mesodermal expansion around the whole yolk sac at gastrula stages; mesodermal split and formation of an exocoelom in the entire embryonic chamber at neurul...

Con el objetivo de determinar la composición de especies de anuros en un bosquede niebla en la Estación experimental y demostrativa “El Rasgón” (Piedecuesta,Santander, Colombia) se utilizaron dos estrategias de muestreo (encuentro visualazaroso y monitoreo en transectos). Se registraron 14 especies (5 géneros y 4 familias)confirmándose la mayor div...

In: Congreso Mundial de Páramos. Estrategias para la Conservación y Sostenibilidad de sus bienes y Servicios Ambientales. Paipa, Boyacá, Colombia. 2002. Trabajo completo en eventos. Los Andes colombianos permiten que el país sea el más rico a escala mundial en cuanto a la fauna de anfibios se refiere. Con el fin de delimitar áreas de endemismo par...

Ampliación de distriución

Analysis of placentation in the final stages of development in Mabuya mabouya shows that the placenta is formed by the apposition of the chorioallantois to the uterine mucosa implicating the entire embryonic chamber, because the allantoic vesicle invades all the exocoelom. The chorioallantoic placenta presents the features proper of a type IV allan...