A5081732166- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Animal and Plant Science Education
- Venomous Animal Envenomation and Studies
- Plant and soil sciences
- Rabies epidemiology and control
- Wildlife Ecology and Conservation
- Turtle Biology and Conservation
- Scarabaeidae Beetle Taxonomy and Biogeography
- Ecology and Vegetation Dynamics Studies
- Ion channel regulation and function
- Marine Invertebrate Physiology and Ecology
- Bat Biology and Ecology Studies
- Animal Behavior and Reproduction
- Wildlife-Road Interactions and Conservation
- Public Health and Environmental Issues
- Educational methodologies and cognitive development
- Lepidoptera: Biology and Taxonomy
- Environmental and Cultural Studies in Latin America and Beyond
- Environmental and Biological Research in Conflict Zones
- Insect and Arachnid Ecology and Behavior
- Systemic Lupus Erythematosus Research
- Phytochemistry and Bioactive Compounds
- Freshwater macroinvertebrate diversity and ecology
- Water Resource Management and Quality
Universidad del Valle
2013-2024
University of Atlántico
2020
Pontificia Universidad Javeriana
2020
Hospital Del Mar
2016-2017
Fundación para la Educación y el Desarrollo Social
2007
Instituto Oceanográfico de la Armada del Ecuador
2003
Assessing Biodiversity Declines Understanding human impact on biodiversity depends sound quantitative projection. Pereira et al. (p. 1496 , published online 26 October) review scenarios that have been developed for four main areas of concern: species extinctions, abundances and community structure, habitat loss degradation, shifts in the distribution biomes. are projected whole 21st century all scenarios, but with a wide range variation. Hoffmann 1503 draw results five decades' worth data...
ABSTRACT We surveyed the population status of Neotropical toad genus Atelopus , and document recent catastrophic declines that are more severe than previously reported for any amphibian genus. Of 113 species have been described or candidates description, data indicate in 42 species, sizes reduced by at least half only ten stable populations. The remaining taxa is unknown. At 30 missing from all known localities 8 yr feared extinct. Most these were last seen between 1984 1996. All restricted...
Abstract Aim Small geographic ranges make species especially prone to extinction from anthropogenic disturbances or natural stochastic events. We assemble and analyse a comprehensive dataset of all the world's lizard identify with smallest ranges—those known only their type localities. compare them wide‐ranging infer whether specific regions biological traits predispose have small ranges. Location Global. Methods extensively surveyed museum collections, primary literature our own field...
Abstract Aim Viviparity has evolved more times in squamates than any other vertebrate group; therefore, offer an excellent model system which to study the patterns, drivers and implications of reproductive mode evolution. Based on current species distributions, we examined three selective forces hypothesized drive evolution squamate viviparity (cold climate, variable climate hypoxic conditions) tested whether is associated with larger body size. Location Global. Time period Present day....
With the objective of comparing incidence adverse events opioids codeine, hydrocodone, and tramadol in relief cancer pain, we conducted a randomized controlled trial which patients with were randomly assigned according to computer-generated schedule receive one three opioids. Of 177 who participated, 62 received 59 56 tramadol. The pain experienced by participants originated most frequently from stomach, breast, or prostate gland was classified as either somatic (33%), visceral (52%), mixed...
This study determines the composition of amphibian ensembles along a vegetation gradient in coastal Pacific rainforests Colombia. Eight environmental and structural variables were measured to characterize species' habitats determine which was most important structuring patterns. After total 432 man-hours sampling effort, 513 individuals from 32 species found. Although richness similar among cover types, abundance different each case. In addition, strong relationship found between changes...
Abstract Aim Although most reptiles are oviparous, viviparity is a common mode of reproduction in squamates and has evolved multiple times different lineages. We test two prevailing hypotheses regarding the biogeography reptile reproductive modes to evaluate selective forces driving evolution snakes. The cold climate hypothesis posits that selected for climates, whereas climatic predictability predicts advantageous seasonal climates. Location Global. Methods collated detailed distribution...
Abstract Aim Understanding the mechanisms determining species richness is a primary goal of biogeography. Richness patterns sub‐groups within taxon are usually assumed to be driven by similar processes. However, if distinct ecological strategies respond differently same processes, inferences made for an entire may misleading. We deconstruct global lizard assemblage into functional groups and examine congruence among between them. further – relationship elucidate way diversity contributes...
In this study we describe for the first time aspects of reproductive ecology and behavior a population Hyalinobatrachium aureoguttatum located in Colombian Pacific lowlands. Males vocalize attend clutches from underside leaves overhanging streams. showed high fidelity to their territory; each male repeatedly uses same leaf perching, calling, mating, clutch attendance. There were no significant differences environmental variables registered microhabitats where males with or without clutches,...
The Andes of South America hosts perhaps the highest amphibian species diversity in world, and a sizable component that is comprised direct-developing frogs genus Pristimantis (Anura: Craugastoridae). In order to better understand initial stages formation these frogs, this study quantified local-scale spatial genetic structuring three Pristimantis. DNA sequences two mitochondrial gene fragments (16S COI) were obtained from P. brevifrons, palmeri jubatus at different locations Cordillera...
Abstract Global amphibian declines have been attributed to several factors including the chytrid fungal pathogen, Batrachochytrium dendrobatidis ( Bd ), that infects hosts’ skin and causes death by inhibiting immune response impairing osmoregulatory function. Here, we integrate extensive new field data with previously published locality records of in Colombia, a megadiverse environmentally heterogeneous country northwestern South America, determine relative importance environmental variables...
Based on literature and field data, a list of the herpetofaunal in Departament Valle del Cauca, Colombia was elaborated. Currently, known information about amphibian richness is composed 162 species; most them frogs toads (148 anuran species vs 4 salamanders 10 Caecilians). The reptiles are represented by 130 species, from which 68 snakes, 53 lizards, 7 turtles only two crocodilians. Most Cauca concentrated Pacific region Western Andes. available indicates that threatened status herpetofauna...
-Three species of Colostethus were found at 1800 m in the cloud forest Pacific slopes Cordillera Occidental Colombia, including C. abditaurantius, fraterdanieli, and a new species. Sonagrams are given for all three Chromatic sexual dimorphism abditaurantius is described. Range extensions derived from material Colecci6n de Anfibios y Reptiles Universidad del Valle lehmanni, which placed southern Colombia. The ramosi group named clade delimited by synapomorphy black, apparently glandular...
Abstract Background In southwestern Colombia there is a notable variety of snakes that belong to the Viperidae family (vipers). The particular clinical manifestation related species poorly reported. Methods Based on prospective study about envenomation caused by vipers from 2011 2019 at Fundación Valle del Lili Hospital, Cali, in southwest Colombia, we selected cases admitted patients which responsible were fully identified. They cataloged syndrome according prevalent signs (edema-inducing,...
Although the red-tailed coral snake (Micrurus mipartitus) is widely distributed in Colombia and its venom highly neurotoxic life threatening, envenomation by this species rare. Therefore, report may shed some light on clinical presentation of M. mipartitus bites.Herein, we describe two cases patients bitten snakes, illustrating victims, outcomes treatment provided.Envenomation caused provokes predicable neurotoxicity, should be based respiratory support use specific antivenom.