Gabriel R Navas SUniversidad de Cartagena · Biology Program
Gabriel R Navas S
Dr.Sci. M.Sc. Mar.Biol.
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115
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Introduction
I am a Colombian Biologist with M.Sc. and Ph.D. in Biological Sciences. Currently, I am a full-time Lecturer at Universidad de Cartagena (gnavass@unicartagena.edu.co) and Director of the COLCIENCIAS group Hidrobiologia. During my scientific career, I have been the Principal researcher and co-researcher of more than 20 scientific research projects, mainly in biology, biodiversity, and ecology.
Additional affiliations
January 2011 - present
January 2011 - present
June 2010 - September 2015
Education
January 2002 - January 2011
December 1997 - December 1999
January 1989 - December 1993
Publications
Publications (115)
Climatic seasons have been shown to determine the temporal fluctuations in species communities of different ecosystems. Here, we assessed the diversity of spider assemblages in dry, transition and rainy seasons in the “Guillermo Piñeres” Botanical Garden (GPBG), Turbaco, Colombia. We collected spider assemblages between June 2018 and April 2019 thr...
Based on the available literature and a review of collections of organisms, a checklist of 69 myriapod species was made for the Colombian Caribbean region; two symphyls, 15 Chilopods, and 52 Diplopods. In total, 20 families (one from Symphyla, five from Chilopoda, and 14 from Diplopoda), from 11 orders (one from Symphyla, three from Chilopoda, and...
The mesophotic coral reefs are part of the conservation object of the Corales de Profundidad Natural National Park (PNNCPR). A fundamental step for managing a protected area is the characterization of its specific richness, and benthic foraminifera is one of the essential taxonomic groups in reef environments. To our knowledge there are not publish...
The mesophotic coral reefs are part of the conservation object of the Corales de Profundidad Natural National Park (PNNCPR). A fundamental step for managing a protected area is the characterization of its specific richness, and benthic foraminifera is one of the essential taxonomic groups in reef environments. To our knowledge there are not publish...
Cartagena es una de las ciudades más pobladas del Caribe colombiano, por lo que requiere una gran demanda de bienes y servicios para suplir las necesidades básicas de sus cuidadanos y visitantes. Esto amenaza sus hábitats naturales y biodiversidad asociada si no se toman urgentemente medidas como: restaurar y enriquecer la vegetación urbana y las z...
Las ciudades presentan una biodiversidad asociada que subsiste en medio de las fuertes presiones antropogénicas que impone la urbanización. Cartagena de Indias es un Distrito del norte de Colombia que contiene un mosaico de ecosistemas costeros: arrecifes, litorales, humedales, manglares y bosques secos. La presencia de estos distintos ambientes ha...
El objetivo de esta investigación fue realizar la caracterización y análisis de la composición florística y estructura de la vegetación riparia en once canales de la zona urbana de Cartagena de Indias. Se establecieron diez parcelas de 100 m2 al borde de cada uno de los canales donde se encontraba la mayor cobertura vegetal. Se censaron todos los i...
Entre septiembre de 2017 y febrero de 2018 se realizaron muestreos de mariposas diurnas en siete zonas urbanas de la ciudad de Cartagena de Indias, usando redes entomológicas y trampas tipo Van Someren-Rydon. Se encontraron 1.210 individuos pertenecientes a 66 especies, 45 géneros y seis familias. Los valores más altos de abundancia se observaron e...
Las ciudades son escenarios donde habitan una gran cantidad de organismos. Diversos estudios señalan que la biodiversidad de las ciudades disminuye con la expansión urbana, debido al continuo crecimiento de la población humana y por ende el aumento de la infraestructura que generalmente se traduce en pérdida de hábitats naturales. Cartagena de Indi...
El crecimiento urbanístico en Colombia ha sido un proceso acelerado y poco planificado; no obstante, algunos de los principales centros urbanos del país aún mantienen una alta riqueza de especies de aves asociada a los parches de vegetación nativa existentes en las zonas verdes y parques urbanos. El objetivo de este estudio fue caracterizar la riqu...
Colombia está ubicado en el sexto lugar de los países más ricos del mundo en mamíferos silvestres, contando con 528 especies. Su región Caribe cuenta con gran variedad de hábitats potenciales para este grupo, albergando 188 especies correspondientes al 36% de las registradas en el país, muchas de ellas endémicas. En este estudio se realizó la carac...
In this study, we report the results of a taxonomic survey of terrestrial isopods from Isla Grande, a ca 2 km2 island located in the north of Cartagena de Indias, Colombia. We found a total of 17 species belonging to nine families and 10 genera. Eight of these species have been reported only from the Caribbean region, nine are recorded for the firs...
A new species, Phaea sondenegro Botero, Ahumada-C., and Navas, new species, is described from Colombia (Bolívar department), and the lectotype of Phaea flavovittata Bates, 1881 is illustrated for the first time. Additionally, the known geographical distribution of eleven species of Cerambycidae (Cerambycinae and Lamiinae) is expanded in Colombia.
Mesophotic coral ecosystems (MCEs) shelter unique communities. Coral zooxanthellae in these environments feature a low photosynthesis rate; therefore zooplankton becomes MCEs’ primary food source. These MCEs have not been studied enough due to the high cost of current assessment technologies, so these endeavours remain a challenge. The purpose of t...
Mesophotic coral ecosystems (MCE) are located between 30 and 150 m deep and shelter unique communities. However, they have been poorly studied due to the high cost of the available sampling technologies. Zooplankton are key organisms for the maintenance of the coral colonies as their primary food source because the zooxanthellae in these habitats h...
Rachycentron canadum is an economically important fish in aquaculture due to its resistance to environmental variations, the feasibility of culture in confinement, high growth rates, and good acceptance by consumers. The profitability of their cage culture is negatively affected by the difficulty of implementing monosex cultures due to the apparent...
Medium and large mammals are among the groups of species most frequently used by local communities, and at the same time, they play a fundamental role in ecosystems. In the Caribbean region of Colombia, some efforts have been made to document these uses, but there are still important gaps in the information necessary for their conservation. In this...
Mesophotic coral ecosystems (MCEs) host unique communities that have not been sufficiently studied due to the high cost of available technologies. These reefs can be found between 30 and 150 m deep, where the amount of incident light is < 10 % of that reaching the surface. The zooxanthellae associated with these reefs have a reduced photosynthetic...
The monotypic genus Barinas González-Sponga, 1987 is studied and rediagnosed, and a complementary description of the type species, Barinas flava González-Sponga, 1987, is provided. A new species, Barinas piragua sp. nov., is described from the Caribbean region of Colombia, representing the first record of the genus for the country. A brief discussi...
We assessed the spatial distribution, relative abundance, and size distribution in classes of Crocodylus acutus and Caiman crocodilus fuscus in Puerto Badel and Correa municipalities, Bolívar department, using monthly spotlight surveys on four sampling routes between November 2015 and March 2016. We covered 14 marshes and ten streams, amounting to...
Th e genus Ischioscia Verhoeff , 1928 is one of the most diverse genera in the Philosciidae Kinahan, 1857. To date, the genus comprises 26 species distributed in tropical and subtropical areas of the Neotropical region. In this work three new species from Serranía de Perijá, Andean Cordillera, Colombian Caribbean, are described: Ischioscia herrerai...
The genus Ischioscia Verhoeff, 1928 is one of the most diverse genera in the Philosciidae Kinahan, 1857.
To date, the genus comprises 26 species distributed in tropical and subtropical areas of the Neotropical
region. In this work three new species from Serranía de Perijá, Andean Cordillera, Colombian Caribbean,
are described: Ischioscia herrerai L...
In this document we extend the geographical distribution for three common species of diurnal butterflies from the Colombian Caribbean region (Aides dysoni, Calpodes ethlius, and Anteos clorinde). The specimens were captured with an insect net in samplings conducted in the Arjona jurisdiction (Bolivar Deparment) in 2015, between 8:00 and 16:00 hours...
We provide a preliminary list of the diurnal butterflies of El Carmen de Bolívar based on specimens captured between 2015 and 2017 using entomological nets during active searches. Six of the Colombian families of diurnal butterflies were registered. In this study, we provide the distribution of each species throughout the Colombian Caribbean and we...
Dry Tropical Forests (DTF) in Colombia are in drastic decline due to the expansion of areas used for agricultural and livestock exploitation that have led to the fragmentation of this ecosystem. Given their status as bioindicators, dung beetles (Coleoptera: Scarabaeinae) are considered an excellent group to evaluate the effects of anthropogenic dis...
To date, 17 species of terrestrial isopods are recorded from the Colombian Caribbean. During recent surveys in the Botanical Garden of Cartagena “Guillermo Piñeres”, Turbaco, Bolívar, Colombia, six species were recognized, belonging to the families Philosciidae, Scleropactidae, Platyarthridae and Armadillidae, of which three are new to the science,...
To date, 17 species of terrestrial isopods are recorded from the Colombian Caribbean. During recent surveys in the Botanical Garden of Cartagena “Guillermo Piñeres”, Turbaco, Bolívar, Colombia,
six species were recognized, belonging to the families
Philosciidae, Scleropactidae, Platyarthridae and Armadillidae, of which three are new to the science,...
A new species of Pulmoniscus Leistikow, 2001 from Department of Bolívar, Colombia, is described. It constitutes the first record of the genus for the country and for the continental portion of the Neotropics. Pulmoniscus turbanaensis n. sp. is distinguished by the male pereopod 7 ischium with concave sternal margin and the shape of the male pleopod...
The genus Androdeloscia includes 24 Neotropical species distributed in Central and South
America. This study describes the new species Androdeloscia colombiana sp. nov. from El
Chorro, Soplaviento, and from the Botanical Garden Guillermo Piñeres, Turbaco, Bolívar,
Colombia. This is the first record of the genus in Colombia.
Presentation of first six months of the Newton Fund Institutional links project.
Resumen Se registra la presencia de Tylos niveus para Colombia y de Porcellionides pruinosus para la región Caribe colombiana. Los especímenes fueron recolectados en la Isla de Barú, Cartagena, departamento de Bolívar, Colombia. Se incluyen ilustraciones de los caracteres diagnósticos para ambas especies, y comentarios sobre su hábitat, morfología...
En el departamento de Bolívar solo se ha descrito la especie Cynorta calcarapicalis Roewer, 1912 (Cosmetidae), siendo el único reporte durante más de un siglo. Posterior a 1912 no se ha realizado ninguna otra investigación, lo que demuestra la falta de exploraciones y especialistas en el país. Con el fin de contribuir al Inventario Nacional de Biod...
En el departamento de Bolívar solo se ha descrito la especie Cynorta calcarapicalis Roewer, 1912 (Cosmetidae), siendo el único reporte durante más de un siglo. Posterior a 1912 no se ha realizado ninguna otra investigación, lo que demuestra la falta de exploraciones y especialistas en el país. Con el fin de contribuir al Inventario Nacional de Biod...
Galatheidae and Chirostylidae are two of the most diverse and abundant families of decapod crustaceans, besides penaeid shrimps. These families contain 869 species around the world and live from shallow waters (less common), marine bottoms on continental slopes (more common), to hydrothermal vents and abyssal plains at 5000 m depth. Eleven genera a...
Between 1998 and 1999 the expedition INVEMAR-MACROFAUNA 1 investigated the upper continental slope of the Caribbean off Colombia at depths ranging from 200 to 500 m. The collection of echinoids comprised 714 individuals belonging to 7 orders, 10 families, 14 genera and 15 species. Stylocidaris lineata, Trigonocidaris albida, Echinocyamus grandiporu...
Three species ol stomatopods colSected tor INVEMAR-MACROFAUNA cruises Squilla carbaea Manning. 1969. S. mtormodi* Bigelow. 1893 y Eurysqutlia holthutslManning. 1969 are listed Tho last two species are tlrst records tor tho Colombian Caribbean Sea. E. holthuisi Manning, 1969. known only Irom type material trom Panamá, was 1he most abundant with nmo...
Echinoderms collected by CIOHINVEMAR- SMITHSONIAN expedition from Cartagena to Golfo de Urabá, Colombian Caribbean. 22 Echinoderm species collected in 21 statjons using a semiballoon trawling net from Cartagena to Golfo de Urabá, between 30 and 380 m depth by the 1995 CIOHINVEMAR- SMITHSONIAN expedition are listed, diagnosed and iIIustrated. The sp...
A taxonomic checklist of larval stages of fish species recorded in the Colombian Caribbean is presented, as a product of an extensive literature review of studies on the topic. Eighty five family records included in 21 orders, with a total of 129 species were found. In terms of composition, the order Perciformes has shown the highest number of fami...
Fifteen species of scorpaenids grouped in four genera (Neomerinthe, Pontinus, Scorpaena and Scorpaenodes) are known from the Colombian continental Caribbean. Caribbean scorpaenids may be separated in two ecological groups, those preferably inhabiting soft bottoms (Scorpaena calcarata is the most frequent species in Colombia), and those found in ree...
The genus Munida is one of the most diverse within the superfamily Galatheoidea. This genus also represents one of the richest and most abundant decapod crustaceans from the continental shelves and upper slopes of the Caribbean and Pacific coasts of Colombia. A morphological study of species of this genus showed taxonomic difficulties mainly due to...
Con el fin de contribuir al Inventario Nacional de Biodiversidad, y en particular al de lepidópteros diurnos presentes en Bolívar, se plantó una parcela de 100 m2 con Zinnia elegans (Asteraceae: Heliantheae). Las plantas fueron renovándose en la medida en que iban madurando y muriendo con el fin de que se mantuviera constante la oferta floral duran...
Los lepidópteros son uno de los grupos de insectos más estudiados en todo el mundo‚ pero en el Caribe colombiano no se han presentado estudios científicos rigurosos de su ecología‚ dinámica y riqueza. El propósito de esta investigación es determinar la dinámica de un ensamblaje de lepidópteros diurnos asociados a Zinnia elegans (Asteraceae: Heliant...
The isopod Ligia baudiniana is reported for the first time from the Caribbean coast of Colombia. Specimens of this species were collected on a rocky, intertidal substrate on the beaches of Marbella, Cartagena de Indias. A diagnosis is included along with illustrations of main taxonomic characters.
First record of Ligia baudiniana H. Milne Edwards, 1840 (Crustacea: Isopoda: Oniscidea) in the Colombian Caribbean. The isopod Ligia baudiniana is reported for the first time from the Caribbean coast of Colombia. Specimens of this species were collected on a rocky, intertidal substrate on the beaches of Marbella, Cartagena de Indias. A diagnosis is...
The first record of M. robusta in Colombia is presented. The specimens were collected by demersal trawling at 500 m depth in front of the departments of La Guajira and Bolívar using a semi-ballon net. Collected specimens were washed onboard with seawater and preserved in 95 % ethanol. The characteristics of the water column were measured with a mul...
The first record of M. robusta in Colombia is presented. The specimens were collected by demersal trawling at 500 m depth in front of the departments of La Guajira and Bolívar using a semi-ballon net. Collected specimens were washed onboard with seawater and preserved in 95 % ethanol. The characteristics of the water column were measured with a mul...
Resumen Se registra la especie Munidopsis cubensis para el mar Caribe sur, Colombia, a partir de un espécimen recolectado con red de arrastre en noviembre de 2009, costa afuera de Punta Canoa (Bolívar), a 776 m de profundidad. Se presentan los caracteres diagnósticos de la especie y se añade información sobre su distribución y ámbitos batimétrico y...
Munidopsis cubensis is reported for the first time for the Southern Caribbean Sea, Colombia. The specimen was collected in November 2009, using a trawl, offshore of Punta Canoa (Bolívar) at a depth of 776 m. We present the species diagnostic characters, as well as its distribution and bathymetric and geographic information. This record increases to...
The genus Munida is one of the most diverse within the superfamily Galatheoidea. This genus also represents one of the richest and most abundant decapod crustaceans from the continental shelves and upper slopes of the Caribbean and Pacific coasts of Colombia. A morphological study of species of this genus showed taxonomic difficulties mainly due to...
A taxonomic checklist of larval stages of fish species recorded in the Colombian Caribbean is presented, as a product of an extensive literature review of studies on the topic. Eighty five family records included in 21 orders, with a total of 129 species were found. In terms of composition, the order Perciformes has shown the highest number of fami...
RESUMEN
Objetivo. Determinar la distribución y afinidades biogeográficas de los galateoideos de aguas colombianas con base en la literatura y muestras recolectadas durante expediciones realizadas entre 1999 y 2002. Materiales y métodos. Se recolectaron ejemplares en 100 estaciones entre 20 y 550 m de profundidad en el Caribe y Pacífico colombiano....
Objective. Determine the distribution and biogeographic affinity of the galateoid species found in Colombian waters. The study is based upon bibliographic data and samples collected during expeditions between 1999 and 2002. Materials and methods. Samples of galateoids were collected from 100 locations, from depths ranging between 20 and 550 m, alon...
We conducted a literature review of available information on the species of marine (Bacillariophyta)
diatoms reported for coastal and ocean Colombian Caribbean Sea. We present a checklist of 337 taxa
for 312 species, 19 varieties and seven forms, grouped into 54 families and 106 genera. The taxonomic
classification was based on the system proposed...
Studies conducted between 1998 and 2009 on the megafauna of the continental shelf and upper slope of the Colombian Caribbean Region and northern area of Pacific coast of Colombia shows the high species richness, abundance and ecological importance of Galatheid families (Munididae and Munidopsidae). Species of this family form assemblages that in sh...
RESUMEN Se presenta un listado de especies de dinoflagelados marinos registrados en la zona costera y oceánica del mar Caribe colombiano. Este listado se basa en la revisión de información disponible de estudios sobre la comunidad fitoplanctónica. Se registran un total de 186 taxones correspondientes a 169 especies con 27 variedades y seis formas....
A check list of the marine species of dinoflagellates reported from coastal and oceanic Colombian Caribbean Sea is presented. The list is based on the revision of bibliographical information available from studies developed on phytoplanktonic community. It reports a total of 186 taxa corresponding to 169 species with 27 varieties and six forms. The...
Twenty one abundant and frequent marine fish species of Santa Marta and Tayrona National Natural Park (Colombian Caribbean) were identified as ornamentals with marked value. Species were ranked positively following various criteria, such as if they have been reared in other countries or if they are included in genera or families which have reared,...
Preliminary evaluation of marine fish species of potential value as ornamentals in Santa Marta and Tayrona National Natural Park, Colombian Caribbean. Twenty one abundant and frequent marine fish species of Santa Marta and Tayrona National Natural Park (Colombian Caribbean) were identified as ornamental with marked value. Species. were ranked posit...
In the Colombian Caribbean there are few studies on zooplankton that have explored their specific composition and the existing information is largely restricted to grey literature. Studies in other areas of the Caribbean show a high species richness of copepods, recording approximately 500 species. This paper presents a taxonomic list of 217 specie...
Con el fin de realizar una caracterización espacial de la comunidad fitoplanctónica marina se recolectaron muestras en 13 estaciones oceánicas frente a la costa Caribe colombiana, durante los meses de mayo y junio de 2008. Se realizaron arrastres verticales desde el inicio de la termoclina hasta la superficie con red cónica, con ojo de malla de 20...
A taxonomic study of hydroids of the Aglaopheniidae family collected on soft bottoms of Colombian Caribbean Sea between 20 and 500 m depth in March 2001 was made. Two genera and six species were found, highlighting Aglaophenia elongata, A. lophocarpa and A. tridentata as new records for Colombian waters. Additionally, the bathymetric distribution f...
RESUMEN Se realizó un estudio taxonómico de los hidrozoos de la familia Aglaopheniidae colectados sobre fondos blandos del Caribe colombiano entre 20 y 500 m de profundidad en marzo de 2001 por la expedición INVEMAR MACROFAUNA II. Fueron encontrados dos géneros y seis especies destacándose Aglaophenia elongata, A. lophocarpa y A. tridentata como nu...
In the Colombian Caribbean there are few studies on zooplankton that have explored their specific composition and the existing information is largely restricted to grey literature. Studies in other areas of the Caribbean show a high species richness of copepods, recording approximately 500 species. This paper presents a taxonomic list of 217 specie...
ABSTRACT
Check-list of diatoms (Bacillariophyta) reported from the Colombian Caribbean Sea
We conducted a literature review of available information on the species of marine (Bacillariophyta)
diatoms reported for coastal and ocean Colombian Caribbean Sea We present a checklist of 337 taxa
for 312 species, 19 varieties and seven forms, grouped into...
Los primera parte del libro que presentamos incluye una descripción detallada de la geomorfología, climatología y oceanografía del Mar Caribe colombiano, ampliando la información correspondiente a procesos naturales marinos y atmosféricos, que son fundamentales para el establecimiento de las comunidades biológicas. Posteriormente se presentan los c...
A partir de datos de abundancia de organismos recolectados en arrastres de fondo de 20
min de duración, en 96 estaciones distribuidas a lo largo del mar Caribe colombiano entre 20 y 920
m de profundidad, se elaboraron mapas de distribución de los diferentes taxa mayores, así como
de algunos índices ecológicos. Sectores como la parte central de la G...
An unusually large number of macrofaunal samples
(96) were taken from the Colombian Caribbean Sea by
means of 20 minute bottom trawling, between 20 and
920 m deep. This data set was employed for mayor taxa
distribution mapping as well as for ecological indexes
distribution analysis. Research has revealed remarkably
high levels of biodiversity on Ce...
This chapter presents an overview of the climatological and oceanographic context of the Colombian Caribbean, supplemented with information collected during oceanographic expeditions ANH I (May-June 2008) and ANH II (October-December 2009). During these expeditions it was determined the temperature, salinity, dissolved oxygen and density at 32 stat...
This chapter presents an overview of the climatological and oceanographic context of the Colombian Caribbean, supplemented with information collected during oceanographic expeditions ANH I (May-June
2008) and ANH II (October-December 2009). During these expeditions it was determined the temperature,
salinity, dissolved oxygen and density at 32 stat...
El sistema de información sobre biodiversidad marina de Colombia (SIBM) en el Ocean Biogeographic Information System (OBIS): 2006-2008.
La Red Interamericana de Información sobre Biodiverstdad (IABIN) promueve la cooperación entre gobiernos y organizaciones de las Américas para la búsqueda y uso de información sobre biodiversidad útil en procesos de toma decisiones sobre conservación y manejo de los recursos. En el marco de dicha iniciativa, se llevó a cabo entre marzo y octubre de...