Roberto J. Guerrero

Roberto J. Guerrero
University of Magdalena

PhD

About

39
Publications
28,677
Reads
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261
Citations
Citations since 2016
26 Research Items
188 Citations
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
2016201720182019202020212022010203040
Additional affiliations
January 2012 - December 2016
University of Magdalena
Position
  • Researcher
September 2009 - June 2018
Central University of Venezuela
Position
  • PhD
August 2009 - present
University of Magdalena
Position
  • Professor (Assistant)
Description
  • I teach Evolution and Zoology II (Biology of Ecdysozoa and Deutorostomies)

Publications

Publications (39)
Article
Full-text available
Tapinoma litorale Wheeler (Hymenoptera: Formicidae) is a small, inconspicuous New World ant that nests in plant cavities, particularly in epiphytes and hollow grass stems and twigs. Recently, T. litorale was included on a list of e􏰀otic ant species established in North America, introduced through human commerce. We compiled and mapped >240 site rec...
Article
Full-text available
A new species of ant (Formicidae: Dolichoderinae) in Miocene Mexican amber is diagnosed and described. Schismiscapus exstinctum gen. et sp. nov. is recognised by having the base of scape flattened and notched; mesosoma long, narrow, and sinuous; hypostomal bridge forming a U-shaped notch without any denticule; anteromedial mesosternum convex; compo...
Article
Full-text available
Pheidole is one of the most diverse groups of ants in the World, with more than 630 species known from the Neotropical Region. As part of studies on the ant fauna of Colombia, a contribution to the taxonomy of these ants is presented here. The worker subcastes of Pheidole praeusta Roger are redescribed, this being the first record of a trimorphic s...
Article
Full-text available
Ants, an ecologically successful and numerically dominant group of animals, play key ecological roles as soil engineers, predators, nutrient recyclers, and regulators of plant growth and reproduction in most terrestrial ecosystems. Further, ants are widely used as bioindicators of the ecological impact of land use. We gathered information of ant sp...
Article
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Se presenta una base de datos de acceso público a través del Sistema de Información de Biodiversidad en Colombia (SIB), de las hormigas asociadas a fragmentos de bosque seco y ambientes urbanos de Santa Marta, Colombia. Los métodos de captura incluyeron la instalación de trampas de caída, cebos de proteína y carbohidratos, extracción por el método...
Article
Full-text available
The taxonomic boundaries of many Neotropical ant species of the genus Tapinoma are still unclear. Tap-inoma atriceps and T. atriceps breviscapum are two morphologically similar taxa which occur sympatrically in the southern Atlantic Forest of Brazil. Some characters such as the scape length and head shape suggest that these taxa may be different sp...
Article
Full-text available
With a long history of more than 100 million years and about 14,000 described living species, ants are one of the most important and well-known groups of insects in the world. Ants are key elements in the structure and dynamics of terrestrial systems, especially in the tropics, as well as models in studies of evolution, ecology, and monitoring of d...
Article
Some species of the ant genus Forelius can be misclassified as the genus Tapinoma due to the convergent reduction of the petiolar scale. I review the taxonomic status of Tapinoma antarcticum Forel 1904 and Tapinoma heyeri Forel 1902. Morphological evidence supports the transfer of these names to the ant genus Forelius. Proposed taxonomic changes ar...
Article
Full-text available
Ants are a conspicuous biotic component within the tropical dry forest, due to their great diversity both at the species and functional level. Of all the ants, those of the genus Pheidole (Formicidae: Myrmicinae) stand out, which have been categorized as a hyperdiverse group due to the high number of species. The latter has made this group a taxono...
Article
Full-text available
Even though Colombia has high levels of ant species richness in the Neotropical region, this richness continues to increase. New records of the ant subfamilies Amblyoponinae, Dolichoderinae, Dorylinae, Myrmicinae, and Ponerinae are presented. Two species of Fulakora, two species of Azteca, one species of Cylindromyrmex, 25 species of Myrmicinae bel...
Book
Full-text available
Las hormigas son uno de los grupos de insectos más comunes en los ecosistemas terrestres del planeta, importantes agentes de la dinámica y estructura de bosques, agrosistemas e incluso ambientes antrópicos. En el mundo Colombia ocupa un lugar destacado en diversidad, con 11 subfamilias, 105 géneros y unas 1200 especies descritas. El propósito del...
Chapter
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The ants are a natural, monophyletic group, supported by based on genes. It is not yet clear the position of ants within Aculeata, especially since Vespoidea in the broad sense was fragmented; recent studies using phylogenomics put ants and apoids as sister groups. Ants are known from the Cretaceous, but its expansion seems to be more evident since...
Chapter
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Eleven subfamilies and forty-three ant genera collected in Colombia are provided with the aim of presenting the diversity of the ants of the country.
Chapter
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Ants are the most conspicuous social insects. Each colony typically comprises a fertile female (queen) and a variable number of infertile females (workers) working in building and maintaining the nest and care for the queen and young. The presence of males is limited, until the departure of virgin females to seek new nests. Although this simple ima...
Chapter
Full-text available
Ants as a diverse and dominant biological group have received substantial attention from different fields of biology. This situation has led to the refinement of the methods of collection, preservation and maintenance of the material collected during a study. In this chapter, we discuss in detail each of the methodologies used to collect ants, whic...
Chapter
Full-text available
Ponerinae comprises ants usually hunters and inhabiting the soil and litter of forests. In the current sense, the subfamily is monophyletic, defined in part by the fused toruli and frontal lobes configuration. The composition, phylogenetic relationships, distribution and biological aspects of the two tribes and 15 genera of the subfamily in Colombi...
Chapter
Full-text available
The species delimitation in ants under the traditional morphology and the modern use of combination of tools such as nuclear and mitochondrial genes, morphometry, cuticular hydrocarbons and niche modeling is revised. Although some groups of ants reasonably can be separated by morphology and / or morphometrics, in some diverse genera only the combin...
Chapter
Full-text available
Las hormigas son uno de los grupos de insectos más comunes en los ecosistemas terrestres del mundo. Son muy importantes en casi todos los aspectos de la biología y la vida humana. Por su biomasa, su impacto en la estructura y en la dinámica de los bosques, sus múltiples aspectos en la biología de comportamiento, sus variadas fuentes de alimentación...
Chapter
Full-text available
Dolichoderine ants are one of the groups that generally are collected in studies referred to ant assembly from almost any place in Colombia. These ants, with usually arboreal habits, have a wide geographical distribution, with a bigger number of species in the tropical and subtropical belt. In the Neotropical region, the 30% of the dolichoderine ge...
Article
The spider subfamily Schismatothelinae from Colombia is revised. One new species of Euthycaelus Simon 1889 and three new species of Schismatothele Karsch 1879 are named, as well as new geographical records provided. E. guane sp. nov. from Santander, S. hacaritama sp. nov. from Norte de Santander, S. olsoni sp. nov. from Norte de Santander and Táchi...
Article
Full-text available
The species of the genus Tapinoma are reviewed for the first time in Colombia. The species T. litorale, T. melanocephalum and T. ramulorum are recognized, as well one fourth undescribed species. A taxonomic key based on the workers, images and distribution maps are provided.
Article
Full-text available
Colombia is a country with a high diversity of ants; however, several new taxa are still being reported for the country. Forty seven new records for the country are registered here, all in the subfamily Myrmicinae: one new species record for the genera Adelomyrmex, Allomerus, Kempfidris, Megalomyrmex, Octostruma and Tranopelta; two for Rogeria; f...
Preprint
Full-text available
The ants of the genus Protalaridris are revised based upon their morphology. Seven species are recognized; the type species (P. armata Brown, 1980) and six species described as new: P. aculeata Lattke & Alpert, sp. n., P. arhuaca Guerrero, Lattke & Alpert, sp. n., P. bordoni Lattke, sp. n., P. leponcei Delsinne & Lattke, sp. n., P. loxanensis Lattk...
Article
This paper revises the taxonomy of Tapinoma melanocephalum (Fabricius, 1793) as follows: T. melanocephalum = Tapinoma luffae (Kuriam, 1955) syn. nov., = Tapinoma melanocephalum coronatum Forel, 1908 syn. nov., = Tapinoma melanocephalum malesianum Forel, 1913 syn. nov. A neotype of Tapinoma melanocephalum (Fabricius, 1793) is designed here. Lectotyp...
Article
The species of Linepithema Mayr in Colombia are reviewed from collection material. The genus Linepithema comprises 20 species, of which the following are reported in Colombia: L. angulatum (Emery), L. dispertitum (Forel), L. gallardoi (Brèthes), L. humile (Mayr), L. iniquum (Mayr), L. neotropicum Wild, L. piliferum (Mayr), L. tsachila Wild, and a n...
Article
Full-text available
The aim of this paper is to actualize the taxonomy of Dorymyrmex, by addressing problems at both the genus and the species levels. We also explore the taxonomy and distribution of Dorymyrmex in Colombia. We list, diagnose, and key nine species in the country, including three new species: Dorymyrmex amazonicus n. sp. Cuezzo & Guerrero, Dorymyrmex xe...
Article
Full-text available
The dolichoderine ant genus Gracilidris and its sole species, G. pombero, are recorded for the first time for Colombia from populations from the foothills of the Colombian Amazon basin. Comments and hypotheses about the biogeography of the genus are discussed.
Article
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Myrmecophytes offer plant-ants a nesting place in exchange for protection from their enemies, particularly defoliators. These obligate ant-plant mutualisms are common model systems for studying factors that allow horizontally transmitted mutualisms to persist since parasites of ant-myrmecophyte mutualisms exploit the rewards provided by host plants...
Article
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The composition and altitudinal distribution of ants along the northwestern slope of the Sierra Nevada de Santa Marta is described. A total of 40 genera and 136 species were collected; Myrmicinae was the richest subfamily at the generic and specific levels at all altitudes. Total ant richness and epigaeic ant richness decreases with altitude while...
Article
Full-text available
The composition and altitudinal distribution of ants along the northwestern slope of the Sierra Nevada de Santa Marta is described. A total of 40 genera and 136 species were collected; Myrmicinae was the richest subfamily at the generic and specific levels at all altitudes. Total ant richness and epigaeic ant richness decreases with altitude while...
Article
Full-text available
We describe five new species in the aurita group of the genus Azteca: Azteca andreae sp. n. (French Guiana), Azteca diabolica sp. n. (Panama), Azteca laurae sp. n. (Brazil), Azteca linamariae sp. n. (Brazil and Colombia) and Azteca snellingi sp. n. (Panama). Four of these new species are based on gynes, while the last is based only on the worker ca...
Article
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The genus Myrcidris and its only described species, M. epicharis are registered for the first time from Colombia. The possible distribution throughout the Amazon watershed of the genus Myrcidris and its obligate relation with antplant Myrcia are discussed.
Article
Forelius damiani sp. nov. is described from the dry forest of the Sierra Nevada de Santa Marta, Colombia, and additional collections from Costa Rica and Texas (USA). This new species is separated from the other rounded spiracles Forelius by the number of erect pronotal hairs, size and coloration. Comments and hypotheses about the biogeography of th...
Article
Full-text available
A synopsis of dolichoderine ants of the genus Teehnomyrmex Mayr (Hymenoptera: Formicidae) in the New World is offered including notes, keys, pictures of all known species, and the description of T gorgona sp. n. from SW Colombia. This is the first record of the genus from continental South America. Currently Technomyrmex comprises six species (two...
Article
Full-text available
A synopsis of dolichoderine ants of the genus Technomyrmex Mayr (Hymenoptera: Formicidae) in the New World is offered including notes, keys, pictures of all known species, and the description of T. gorgona sp. n. from SW Colombia. This is the first record of the genus from continental South America. Currently Technomyrmex comprises six species (two...
Article
Full-text available
Se registran por primera vez cuatro especies de hormigas poneromorfas para el Caribe Colombiano, Platythyrea pilosula, Platythyrea prizo, Acanthoponera mucronata y Heteroponera angulata, esta última nuevo registro para Colombia. Además, se presenta una clave para las especies de Heteroponerinae y otra para las especies del género Platythyrea (Poner...
Article
Four species of poneromorpha ants are registered for the first time for the Colombian Caribbean, Platythyrea pilosula, Platythyrea prizo, Acanthoponera mucronata, and Heteroponera angulata. The latter is a new record for Colombia. Keys to the Colombian Heteroponerinae species as well as keys to the Colombian species of the Platythyrea (Ponerinae) a...

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