A5087232932- Spider Taxonomy and Behavior Studies
- Lepidoptera: Biology and Taxonomy
- Species Distribution and Climate Change
- Invertebrate Taxonomy and Ecology
- Amphibian and Reptile Biology
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Genetic diversity and population structure
- Coleoptera Taxonomy and Distribution
- Animal Behavior and Reproduction
- Conservation, Biodiversity, and Resource Management
- Venomous Animal Envenomation and Studies
- Hymenoptera taxonomy and phylogeny
- Study of Mite Species
- Parasite Biology and Host Interactions
- Insect and Arachnid Ecology and Behavior
- Computational Physics and Python Applications
- Economic and Environmental Valuation
- Environmental Impact and Sustainability
- Primate Behavior and Ecology
- Evolutionary Game Theory and Cooperation
- Genomics and Phylogenetic Studies
- Fossil Insects in Amber
- Peatlands and Wetlands Ecology
- Silk-based biomaterials and applications
University of Atlántico
2025
Universidad del Valle
2010-2024
Universidade de São Paulo
2012-2019
Instituto Butantan
2014
A taxonomic revision and phylogenetic analysis of the spider genus Glenognatha Simon, 1887 is presented. This based on a data set including 24 species plus eight outgroups representing three related tetragnathine genera one metaine as root. These taxa were scored for 78 morphological characters. Parsimony was used optimality criterion sensitivity performed using different character weighting concavities. Seven unambiguous synapomorphies support monophyly Glenognatha. Some internal clades...
Abstract The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems ( https://www.nhm.ac.uk/our-science/our-work/biodiversity/predicts.html )—has collated from published studies a large, reasonably representative database comparable samples biodiversity multiple sites that differ in the nature or intensity human impacts relating to land use. We have used this evidence base develop global and regional statistical models how local responds these measures....
Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction alien species. Existing global databases species' threat status or population time series are dominated by charismatic The collation datasets with broad taxonomic biogeographic extents, that support computation a range biodiversity indicators, is necessary enable better understanding historical declines project - avert future declines. We...
We examined the type series of Josa chazaliae (Simon, 1897) from Sierra Nevada de Santa Marta, Colombia, composed three females two different species. Herein, we propose a lectotype for chazaliae, redescribe female, and describe male this species first time. A new species, samaria sp. nov., is proposed based on female paralectotype chazaliae. Three additional all both sexes are described: nadineae berlandi olimpica nov. All studied in work occur highest coastal mountain system world....
Abstract Aim Understanding the impact of land use change within assemblages is fundamental to mitigation policies at local and regional scale. Here, we aim quantify how site‐level terrestrial are responding in Colombia a mega‐diverse country project future biodiversity under different scenarios associated with climate policies. Location (northern South America). Methods We collated original data from 17 publications (285 sites) that examined human affects Colombia. From each site estimated...
The genus Galapa Huber, 2000 includes tiny spiders (body length <1.5 mm) restricted to semi-arid habitats. It has long been thought be endemic the Galapagos Islands until G. spiniphila 2020 was described from Venezuelan Paraguaná Peninsula. Here, we support this generic assignment with molecular (CO1) data and describe two new species Colombia (G. gabito Huber sp. n.) Costa Rica murphyi n.), showing that is actually widely distributed. Distribution modelling identifies several high...
Understanding the variation of diversity patterns requires analysis at multiple spatial scales. In this study we estimated components (alpha, beta and gamma) spider community El Vínculo Natural Regional Park, using additive partitioning (species richness, Shannon's index Simpson's index) for first time on taxon in Colombia. We collected specimens following a nested sampling design that consisted two At local scale, quantified 238 units, regional scale five vegetation types. Total observed...
A dataset of 3,250,404 measurements, collated from 26,114 sampling locations in 94 countries and representing 47,044 species. The data were 480 existing spatial comparisons local-scale biodiversity exposed to different intensities types anthropogenic pressures, terrestrial sites around the world. database was assembled as part PREDICTS project - Projecting Responses Ecological Diversity In Changing Terrestrial Systems; [www.predicts.org.uk](http://www.predicts.org.uk).\r\n\r\nThe taxonomic...
Abstract We present a total evidence phylogenetic analysis of the Neotropical orb-weaving spider genus Wagneriana and discuss impacts methodological choices. analysed 167 phenotypic characters nine loci scored for 115 outgroups, including 46 newly sequenced species. compared analyses molecular-only to evaluate impact evidence, we performed using programs POY, TNT, RAxML, GARLI, IQ-TREE MrBayes effects multiple sequence alignment optimality criteria. In all analyses, carimagua uropygialis...
The Brazilian spider fauna comprises thousands of described species, mostly known by only one or two records, and there are large sampling gaps. the state Roraima is enigmatic in Brazil remains largely unknown. Herein, we present a list species recently collected during an expedition Roraima. Species-level identifications were possible for 229 adult individuals 54 species. Five newly recorded from Brazil, 30 presented first time Most these new records represented widespread representing huge...
Female genital morphology of secondarily haplogyne spiders has been poorly studied, hampering the analysis its possible phylogenetic significance. We conduct a comparative morphological study 12 species spider genus Glenognatha Simon, 1887 using scanning electron microscopy. Representatives closely related genera Pachygnatha Sundevall, 1823 and Dyschiriognatha 1893 were also examined. The female genitalia Glenognatha, Dyschiriognatha, examined are composed spiracle-shape gonopore, membranous...
Abstract Convergent evolution has been shown to be a prominent feature of anuran evolutionary history. Studying the morphological pathways involved in convergent character allows us test whether deterministic or contingent forces drive characters. Here, we have assessed associated with arboreal habits species six families anurans (Hylidae, Eleutherodactylidae, Strabomantidae, Centrolenidae, Bufonidae and Hemiphractidae) through comparative analysis 19 phenotypic characters related climbing...
Abstract Ancestral character-state reconstruction is a powerful method in phylogenetics that can be applied to elucidate the evolutionary history of secondary sexual characters. Here, we surveyed variation and reconstructed ancestral states characters (i.e. dichromatism, vocal slits nuptial pads) for most species-rich genus anurans (Pristimantis) using maximum parsimony, maximum-likelihood Bayesian methods. This study demonstrates at least five independent transformation series account...
Herein we describe Ocrepeira klamt sp. n. (Araneae: Araneidae), a new orb-weaving spider species from Colombian páramo, which was formerly inaccessible for scientific studies due to decades long armed conflicts. Both, phenotypic and molecular data are used confirm genus affiliation, the is placed into phylogenetic context with other araneid spiders. Morphological characteristics ecological notes of reported together sequence barcoding region cytochrome c oxidase subunit I (COI) provide...
The Tityus forcipula species group has had an intricate taxonomic history, changing its diagnostic characters and composition on several occasions. One of the alleged reasons for this uncertainty is use superficial (i.e. raw similarity instead putative synapomorphies) delimitation. Here, we conducted a thorough phenotypic survey across group, as currently delimited, including that been suggested elsewhere synapomorphies delimiting lineages within Tityus. In doing so also redescribe describe...
Aim Understanding the impact of land use change within assemblages is fundamental to mitigation policies at local and regional scale. Here, we aim quantify how site-level terrestrial are responding in Colombia a mega-diverse country project future biodiversity under different scenarios associated with climate policies.