A5067369252- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Avian ecology and behavior
- Fish biology, ecology, and behavior
- Wildlife-Road Interactions and Conservation
- Plant and animal studies
- Genetic diversity and population structure
- Wildlife Ecology and Conservation
- Evolution and Paleontology Studies
- Genomics and Phylogenetic Studies
- Animal Behavior and Reproduction
- Lepidoptera: Biology and Taxonomy
- Animal Vocal Communication and Behavior
- Paleontology and Evolutionary Biology
- Bird parasitology and diseases
- Plant Diversity and Evolution
- Indigenous Health and Education
- Wildlife Conservation and Criminology Analyses
- Invertebrate Taxonomy and Ecology
- Economic and Environmental Valuation
- Forest ecology and management
- Botany and Geology in Latin America and Caribbean
- Galician and Iberian cultural studies
- Environmental and biological studies
- Scarabaeidae Beetle Taxonomy and Biogeography
Universidade Federal de Pernambuco
2014-2024
Universidade Federal de Roraima
2011-2020
Harvard University
2018-2020
Houston Museum of Natural Science
2007-2018
Louisiana State University
2007-2018
Polydoro Ernani de São Thiago University Hospital
2006-2014
National Institute of Amazonian Research
2001-2011
Louisiana State University Agricultural Center
2010
Since 2005, the Brazilian Ornithological Records Committee (CBRO) has published updated checklists of birds almost every year. Herein, we present a completely new and annotated version our checklist. For first time, list all bird subspecies known from Brazil that are currently accepted by at least one key ornithological reference work. The inclusion should be seen as synthesis, not taxonomic endorsement. As such, include in checklist 1919 avian species, 910 which treated polytypic works...
Abstract Most knowledge on biodiversity derives from the study of charismatic macro-organisms, such as birds and trees. However, diversity micro-organisms constitutes majority all life forms Earth. Here, we ask if patterns richness inferred for macro-organisms are similar micro-organisms. For this, barcoded samples soil, litter insects four localities a west-to-east transect across Amazonia. We quantified Operational Taxonomic Units (OTUs) in those using three molecular markers. then...
The Amazon River and its major tributaries delimit the distributions of hundreds terrestrial taxa. It remains unclear whether river-bounded taxon replacements reflect historical role rivers in generating species diversity as vicariant forces, or are result their secondary barriers, maintaining current levels by inhibiting gene flow population introgression. We use a community-wide comparative phylogeographic phylogenetic approach to address roles that Rio Negro Branco play avian speciation...
Suture zones represent natural forums in which to examine the role of geography and ecology speciation process. Here, we conduct a comparative analysis designed investigate location avian phylogeographic breaks contact Guiana Shield, northern Amazonia. We use distributional genetic data from 78 pairs taxa address whether are associated with contemporary landscape features. Using spatially explicit statistical models, found that not randomly distributed throughout landscape. In general,...
Scientists have long been trying to understand why the Neotropical region holds highest diversity of birds on Earth. Recently, there has increased interest in morphological variation between and within species, how climate, topography, anthropogenic pressures may explain affect phenotypic variation. Because data are not always available for many species at local or regional scale, we limited our understanding intra- interspecies spatial Here, present ATLANTIC BIRD TRAITS, a set that includes...
We investigated the effects of landscape features and forest structure on avian community at Reserva Florestal Adolpho Ducke near Manaus, in Brazilian Amazon. sampled 72 50 × m plots systematically distributed reserve, covering an area 6,400 ha. The avifauna was using mist nets acoustic surveys plots. found no significant relationships between components number bird species individuals sampled. Results Principal Coordinate Analyses, however, showed that composition changes along a...
Understanding the factors that govern variation in genetic structure across species is key to study of speciation and population genetics. Genetic has been linked several aspects life history, such as foraging strategy, habitat association, migration distance, dispersal ability, all which might influence gene flow. Comparative studies data from with differing histories provide opportunities tease apart role shaping flow structure. Here, we examine sets bird specialized on a series Amazonian...
ABSTRACT Aim We analysed presence/absence data for understorey bird species in rain forest fragments sampled from 1979 through 2001. Here we consider extinctions between 1992, when most had been isolated at least 8 years, and Our objectives were to determine whether high extinction rates documented soon after isolation continued up 20 years isolation, examine fragment size landscape effects on extinction. Location Biological Dynamics of Forest Fragments Project, near Manaus, Brazil. Methods...
South America holds 30% of the world's avifauna, with Atlantic Forest representing one richest regions Neotropics. Here we have compiled a data set on Brazilian bird occurrence (150,423) and abundance samples (N = 832 species; 33,119 individuals) using multiple methods, including qualitative surveys, mist nets, point counts, line transects). We used four main sources data: museum collections, on-line databases, literature sources, unpublished reports. The comprises 4,122 localities from 1815...
Amazonian rivers represent known barriers for avian dispersal, reducing gene flow and enhancing differentiation. Despite the importance of in evolutionary process, we have made only minor advances understanding limitations imposed by on flying birds. To fill that gap, conducted dispersal-challenge experiments over water, assessing capabilities 84 tropical bird species 22 different families. We mist-netted released 484 birds from a stationary boat Rio Branco, northern Amazonia, at increasing...
Abstract Despite the importance of rivers in Amazonian biogeography, avian distribution patterns river‐created habitats ( i.e ., floodplain forests) have been sparsely addressed. Here, we explore geographic variation forest avifaunas, specifically regarding one most striking aspects Amazon: diversity river “colors” types, based on color water). We sampled avifauna at 30 sites, located 17 different (nine black‐ and eight whitewater), Rio Negro basin, northwestern Brazil. Our sampling...
Abstract Aim Although ‘river color’ or water type is an important determinant of Amazonian floodplain biodiversity, the relevance mixing distinct types at river confluences to distribution terrestrial fauna has been largely overlooked. We investigated how influx a sediment‐rich whitewater tributary affects forest avifauna along world's largest blackwater river. Location Northwestern Brazilian Amazon. Taxon Birds. Methods sampled and retrieved estimates sediment concentration in (the main...
Aim To develop a methodology for defining the boundaries of Guianan area endemism using complementary approaches that include GIS tools, multivariate statistics and analyses physical barriers in distribution patterns an entire endemic avifauna. As case study, I used lowland terra firme forest birds. Location Guiana Shield, northern South America. Methods identified endemics ornithological literature, subsequently gathering distributional data these taxa mainly museum...
Site-based avian inventories are ubiquitous in Neotropical ornithology but prone to error if feldworkers not familiar with the regional species pool, particularly species-rich regions such as Amazon basin. Here, we review recent lists from Brazilian both primary ornithological literature and protected area management plans assess level of putative errors terms bird recorded site-based that biogeographically unlikely sampled region. We found be frequent across all inventory types. Failure...
Although vicariant processes are expected to leave similar genomic signatures among codistributed taxa, ecological traits such as habitat and stratum can influence genetic divergence within species. Here, we combined landscape history specialization understand the historical factors responsible for current levels of in three species birds specialized seasonally flooded habitats muddy rivers which widespread Amazon basin but have isolated populations Rio Branco. Populations white-bellied...
While many published maps of avian species richness indicate northern Amazonia to be somewhat species-poor, recent surveys reveal that this area actually possesses one the most species-rich avifaunas in Neotropical lowlands. Our at least 520 bird occur Viruá National Park (VNP) and adjacent areas, which is located Brazilian state Roraima (northern Amazonia). Here, we present results our ornithological efforts since 2001, based on audio-visual mist-netting surveys, vouchered by tape digital...
The taxonomy of Hauxwell's Thrush (Turdus hauxwelli) with respect to its relationship the Cocoa fumigatus) has been complicated. A confounding factor morphological variation reported within T. hauxwelli and apparent geographic overlap two taxa. Recent evidence shows that some these factors may be explained by existence a cryptic, syntopic species, very similar in plumage hauxwelli. new species differs minor characters, soft-part colors, (especially) voice. On basis vocal molecular data, we...
Summary The Rio Branco is a river with unique biogeographic and ecological features, threatened by the Brazilian Government’s plan to build major hydroelectric dam associated hydroway along its course. crosses one of Amazonia’s largest rainfall gradients geomorphological boundary savanna/forest ecotone, marked Bem Querer rapids. Above rapids, upper runs through Boa Vista sedimentary formation crystalline rocks Guiana Shield, margins are flanked gallery forests. Downriver, it low-lying basin,...
South American dry forests have a complex and poorly understood biogeographic history. Based on the fragmented distribution of many Neotropical forest species, it has been suggested that this biome was more widely distributed contiguous under drier climate conditions in Pleistocene. To test scenario, known as Pleistocene Arc Hypothesis, we studied phylogeography Rufous-fronted Thornbird (Phacellodomus rufifrons), widespread bird with disjunct closely matching itself. We sequenced mtDNA used...
We examined phylogeographic patterns and cryptic diversity within the royal flycatcher, Onychorhynchus coronatus (Aves: Onychorhynchidae), a widespread Neotropical lowland forest tyrant flycatcher. A phylogeny of six recognized subspecies was constructed from mtDNA sequence data NADH dehydrogenase subunit two gene, using Bayesian Inference Maximum Likelihood methods. Phylogenetic analyses revealed high levels intraspecific divergence O. , supporting existence at least independent lineages....
The island of Santa Catarina lies in the Atlantic Forest Domain southern Brazil, one most threatened ecosys tems on planet. It holds a wide variety habitats, ranging from sand dune ‘restingas’ to mature rain forest. We report, for first time, survey bird species and their conservation status different habitats present island. recorded 269 54 families (25 were seabirds). More than 50% (140) total number residents or probable residents, 20% (58) visitors relatively high (61, 23%) had...