A5074851320- Amphibian and Reptile Biology
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Wildlife-Road Interactions and Conservation
- Plant and animal studies
- Fish biology, ecology, and behavior
- Ecology and Vegetation Dynamics Studies
- Animal and Plant Science Education
- Animal Behavior and Reproduction
- Turtle Biology and Conservation
- Insect and Arachnid Ecology and Behavior
- Business and Management Studies
- Conservation, Biodiversity, and Resource Management
- Yersinia bacterium, plague, ectoparasites research
- Aviation Industry Analysis and Trends
- Evolution and Paleontology Studies
- Rabies epidemiology and control
- Genetic diversity and population structure
- Research Data Management Practices
- Scientific Computing and Data Management
- Risk and Safety Analysis
- Lepidoptera: Biology and Taxonomy
- Parasite Biology and Host Interactions
- Venomous Animal Envenomation and Studies
- Genomics and Phylogenetic Studies
Vale Technological Institute
2023-2025
Universidade Federal do Oeste do Pará
2017-2024
Vale (Brazil)
2024
Universidade Federal de Juiz de Fora
2006-2023
National Institute of Amazonian Research
2011-2018
Macquarie University
2017-2018
Politecnica Salesiana University
2011
Hospital Clínico Universitario de Valencia
1999
Abstract Biogeographical history and current ecological interactions have usually been addressed separately to explain the spatial distribution of patterns biodiversity. In this study, we evaluated integrated effects biogeographical environmental factors in structuring diurnal amphibian anuran assemblages upper Madeira River, southwestern Amazonia. We used a sampling design involving 98 standardized units, distributed across seven locations covering both banks river's course state Rondônia,...
Rising habitat loss is one of the main drivers global amphibian decline. Nevertheless, knowledge diversity needed for effective protection still highly inadequate in remote tropical regions, greater part Amazonia. In this study we integrated molecular, morphological and bioacoustic evidence to evaluate species richness treefrogs genus Scinax over a 1000 km transect across rainforest Purus-Madeira interfluve, along east bank upper Madeira river, Brazilian Analysis revealed that 82% regional...
Biodiversity data, particularly species occurrence and abundance, are indispensable for testing empirical hypothesis in natural sciences. However, datasets built research programmes do not often meet FAIR (findable, accessible, interoperable reusable) principles, which raises questions about data quality, accuracy availability. The 21 st century has markedly been a new era science analytics every effort to aggregate, standardise, filter share biodiversity from multiple sources have become...
Abstract Understanding changes in species composition due to human‐induced habitat modification and environmental filtering is essential for formulating effective conservation strategies. Species turnover resulting from reduced‐impact logging (RIL) expected the short term, generally with adapted open areas replacing those dependent on old‐growth forest. However, little known about how RIL activities influence assemblages after perturbation ceased. We sampled lizards across an edaphic...
Tropical rainforests often appear relatively homogeneous on satellite images, but responses to landscape characteristics may be found finer scales if habitat are considered as continuous variables. In this study, we used 30 uniformly distributed plots and 16 beside streams evaluate the effects of distance from stream, litter depth, altitude, slope, tree density abundance Amazonian Lancehead Pitviper (Bothrops atrox). We estimated densities probabilities detection snakes in riparian upland...
Studies leading to decision-making for environmental licensing often fail provide accurate estimates of diversity. Measures snake diversity are regularly obtained assess development impacts in the rainforests Amazon Basin, but this taxonomic group may be subject poor detection probabilities. Recently, Brazilian government tried standardize sampling designs by implementation a system (RAPELD) quantify biological using spatially-standardized units. Consistency design allows probabilities...
Knowledge of genetic structure, geographic distance and environmental heterogeneity can be used to identify features natural history traits that influence dispersal gene flow. Foraging mode is a trait might predict capacity in snakes, because actively foragers typically have greater movement rates than ambush predators. Here, we test the hypothesis 2 foraging snakes higher levels flow We evaluated these 4 co-distributed species Brazilian Amazon. Snakes were sampled along an 880 km transect...
We present a checklist for reptiles and amphibians of the Reserva Extrativista do Rio Gregório, at upper Juruá River basin, in southwest Brazilian Amazonia. Using time-constrained searches, pitfall traps, vocalization, accidental sightings, we recorded 84 species: 46 38 reptiles. Although analyses suggest still higher diversity, considering short sampling time, relatively high species richness was documented, which reveals relevance this region conservation. Species did not differ between...
A new tree frog species of the genus Scinax from interfluve between Purus and Madeira rivers, Brazilian Amazonia, is described illustrated. The diagnosed by medium body size, snout truncate in dorsal view, ulnar tarsal tubercles absent, nuptial pads poorly developed, skin on dorsum shagreen, light brown with dark spots markings, white groin black spots, anterior posterior surfaces thighs black, iris bright orange. advertisement call consists a single short note, 16−18 pulses dominant...
The genus Scinax is one of the most specious genera treefrogs family Hylidae. Despite high number potential new species revealed in recent studies, rate descriptions for Amazonia has been low last decade. A cause this may be existence morphologically cryptic species. Describing not only impact taxonomy and systematics a group organisms but also benefit other fields biology. Ecological studies conducted megadiverse regions, such as Amazonia, often meet challenging questions concerning...
The Brazilian mountain ranges from the Guiana Shield highlands are largely unexplored, with an understudied herpetofauna. Here amphibian and reptile species diversity of remote Serra da Mocidade range, located in extreme northern Brazil, is reported upon, biogeographical affinities taxonomic highlights discussed. A 22-days expedition to this range was undertaken during which specimens were sampled at four distinct altitudinal levels (600, 960, 1,060 1,365 m above sea level) using six...
Investigating the role of historical and ecological factors structuring assemblages is relevant to understand mechanisms processes affecting biodiversity across heterogeneous habitats. Considering that community assembly often involves scale-dependent processes, different spatial scales may reveal distinct assemblages. In this study we use arboreal leaf-litter lizard abundance data from 83 plots investigate assemblage structure at two in southwestern Brazilian Amazonia. At a regional scale,...
Mechanisms generating and maintaining biodiversity at regional scales may be evaluated by quantifying β-diversity along environmental gradients. Differences in assemblages result biotic complementarities redundancies among sites, which quantified through multi-dimensional approaches incorporating taxonomic (TBD), functional (FBD) phylogenetic (PBD). Here we test the hypothesis that snake TBD, FBD PBD are influenced gradients, independently of geographic distance. The gradients tested...
Abstract Aim Disentangling historical and ecological effects on different components of species diversity is key to understanding the assembly maintenance communities over space time. Historical factors may be stronger predictors community composition at regional scales, while more important local scales. Here, we evaluate multiple biodiversity dimensions investigate riverine barrier aridity structure lizard assemblages. Location Semi‐arid region northeastern Brazil. Taxon Lacertilia...
Biodiversity data, particularly species occurrence and abundance, are indispensable for testing empirical hypothesis in natural sciences. However, datasets built research programs do not often meet FAIR (findable, accessible, interoperable, reusable) principles, which raises questions about data quality, accuracy, availability. The 21st century has markedly been a new era science analytics, every effort to aggregate, standardize, filter, share biodiversity from multiple sources have become...
Pesticides have been described as a major cause of bee mortality, and thus are predictors population decline decrease in pollination services. Standardized tests with Apis mellifera already common, there is need to create adequate parameters for the native solitary eusocial species stingless bees. In this study, we evaluated lethal dosages (LD50 LD90), time (LT), sub-lethal effects (SLE) two pesticides used soybean crops, abamectin, acetamiprid, Scaptotrigona aff. xanthotricha. All were...
Abstract Aim Distinguishing ecological and evolutionary processes that structure assemblages can provide a comprehensive vision of the variation in species turnover heterogeneous regions. However, causes spatial organism assemblies most Amazon still require further studies. In view this, our objective was to determine relative roles interactions, categorical continuous environmental filters isolation by distance taxonomic functional composition lizard assemblages. Location Amazonian...
Cross-habitat spillover may be the outcome of a process habitat loss or degradation where receiving serves as refuge for organisms. Once surface habitats are lost degraded, animals can find underground in caves. This paper is focused on testing whether taxonomic order richness inside caves positively affected by native vegetation cover surrounding caves; predicts cave community composition; and there pattern clusters delimited similarity effects animal communities. We gathered comprehensive...
We describe a new small species of Scinax from the rain forests on interfluve between Purus and Madeira Rivers, Brazilian Amazonia. The is diagnosed by snout–vent length 20.2−22.5 mm in males; yellowish-bronze dorsum showing spots along body limbs; red stripe horizontally extended medial portion iris; posterior surface thigh brown, both live preserved specimens. advertisement call consists two types: type A represents series multipulsed notes (note duration 0.097−0.115 sec, dominant...
Abstract Biological assemblages are often predictable from knowledge of natural environmental heterogeneity and change in response to anthropogenic disturbances, such as deforestation, so understanding ecological mechanisms processes mediating is essential direct conservation actions. We sampled frogs along an edaphic vegetation‐structure gradient the Brazilian Amazon test hypothesis that species composition functional trait characteristics across landscapes due filtering. Our study area...
Turtles are one of the most threatened groups vertebrates, with about 60% species classified at some level extinction risk. Compounding this crisis cryptic and complexes that evaluated under a single epithet but harbor multiple species, each which needs to be independently. The Phrynops geoffroanus group is classic example. Described first in 1812, it currently thought species. To test hypothesis, we collected mitochondrial nuclear genomic data, morphometric distribution associated biome...
The classic Wallace’s riverine barrier hypothesis (RBH) has been widely invoked to explain species distribution and evolutionary divergence throughout Amazonia. Dispersal gene flow limited by the inability cross a river restricts geographic an interfluvial zone, which causes different assemblage compositions between opposite banks. In this study, we sampled frogs Squamata reptiles along Jari River, tributary of lower Amazon test RBH at level. We used non-metric multidimensional scaling based...