32 Works

Differential speciation rates, colonization time, and niche conservatism affect community assembly across adjacent biogeographical regions

Ronildo Benício, Diogo Provete, Mariana Lyra, Jani Heino, Célio Haddad, Denise De C. Rossa-Feres & Fernando Da Silva
Aim: To test the importance of evolutionary and biogeographic processes in shaping the assembly of local frog communities in two adjacent regions (hereafter, coastal and inland regions) with different historical signatures. We asked two main questions: i) why does the coastal region harbor more frog species than the inland region? and ii) how do these processes affect the relationship between the spatial variation of taxonomic, phylogenetic, and functional diversities within and across these regions? Location:...

Tuberculosis in prison inmates in Southern Brazil: investigating the epidemiological and operational indicators

Caroline Busatto, Julia Mespaque, Pauline Schwarzbold, Camilo Darsie de Souza, Carla Adriane Jarczewski, Rodrigo Dalke Meucci, Jason Andrews, Julio Croda, Pedro Eduardo Almeida da Silva, Ivy Bastos Ramis & Lia Gonçalves Possuelo
ABSTRACT Background: Tuberculosis is a worldwide public health problem and is more prevalent in specific populations, such as prisoners. The aim of this study was to analyze the epidemiological and operational indicators of tuberculosis in prisoners in a southern region of Brazil. Methods: This was a descriptive, observational study, utilizing secondary data from the Notifiable Diseases Information System on tuberculosis cases diagnosed in prisoners in the state of Rio Grande do Sul, southern Brazil, from...

Strategic diagnosis of a property specialized in breeding, rearing and finishing beef cattle in the southern region of Piauí

Rosemeire Pereira da Silva, Artur Henrique Sousa Fernandes, Priscila Teixeira de Souza Carneiro, Antonio Leandro Chaves Gurgel & Viviany Lúcia Fernandes dos Santos
ABSTRACT. This study aimed to perform a strategic diagnosis on a property specialized in breeding, rearing and finishing beef cattle in the southern region of Piauí. It was conducted at Agropecuária Alvorada, located in the countryside, municipality of Bom Jesus, PI, Brazil. The farm develops the full cycle of beef cattle production, which is divided into breeding, rearing and finishing. A SWOT analysis (which stands for Strengths, Weaknesses, Opportunities and Threats) was carried out, consisting...

Chitosan combined with technical cashew nut shell liquid improves in vitro ruminal parameters and gas production kinetics

Elis Regina de Queiroz Vieira, Rafael Henrique de Tonissi e Buschinelli de Goes, Tatiana Garcia Diaz, Milene Puntel Osmari, Leonardo de Oliveira Seno, Luís Carlos Vinhas Ítavo, Jefferson Rodrigues Gandra, Douglas Gabriel Anschau, Raquel Tenório de Oliveira, Nayara Gonçalves da Silva & Amanna Gonzaga Jacaúna
ABSTRACT The objective was to evaluate the inclusion of chitosan (CHI) and technical cashew nut shell liquid (CNSLt) as natural feed additives in cattle diets on nutrient digestibility, ruminal fermentation, and in vitro gas production kinetics. We conducted a completely randomized design with 5×4 factorial arrangement, with 20, 35, 50, 65, and 100% Tifton 85 hay and four additives, monensin (200 mg/kg DM), CNSLt (500 mg/kg DM), CHI (500 mg/kg DM), and CNSLt+CHI (500 mg/kg...

A scoping study of pulmonary paracoccidioidomycosis: severity classification based on radiographic and tomographic evaluation

Sergio Marrone Ribeiro, Thiago Franchi Nunes, Ricardo de Souza Cavalcante, Anamaria Mello Miranda Paniago, Beatriz Aparecida Soares Pereira & Rinaldo Poncio Mendes
Abstract The lungs have great importance in patients with paracoccidioidomycosis since they are the portal of entry for the infecting fungi, the site of quiescent foci, and one of the most frequently affected organs. Although they have been the subject of many studies with different approaches, the severity classification of the pulmonary involvement, using imaging procedures, has not been carried out yet. This study aimed to classify the active and the residual pulmonary damage using...

Ecological and evolutionary drivers of geographic variation in songs of a Neotropical suboscine bird: The Drab-breasted Bamboo Tyrant (Hemitriccus diops, Rhynchocyclidae)

Adriana Carolina Acero-Murcia, Fábio Raposo Do Amaral, Fábio Barros, Tiago Ribeiro, Cristina Miyaki & Marcos Maldonado-Coelho
Understanding the evolutionary and ecological mechanisms that shape the spatial divergence of signals involved in reproductive isolation is a central goal in studies of speciation. For birds with innate songs, such as the suboscine passerine birds, the integration and comparison of both genetic and ecological factors in explaining song variation at the microevolutionary scale is rare. Here we evaluated the evolutionary and ecological processes underlying the variation in the songs of the Atlantic Forest endemic...

Data from: Can matrix structure affect animal navigation between fragments? A dispersal experiment using release platforms

Vitor Sanches, Jorge Menezes, Jayme Prevedello, Almeida-Gomes Maurício & Luiz Gustavo Oliveira-Santos
The persistence of species in fragmented landscapes relies on landscape connectivity and individuals’ ability in dispersing among habitat patches. Accordingly, matrix structure can affect the orientation of dispersing individuals across the landscape. In this study, we measured the impact of matrix structure on the dispersal performance of the white-eared opossum (Didelphis albiventris). We released individuals in three types of matrix: bare field, corn crops and soybean crops, with distances of 30, 50 and 100 m...

Data from: Unwrapping broken tails: Biological and environmental correlates of predation pressure in limbless reptiles

Mario R. Moura, Henrique C. Costa, Arthur D. Abegg, Esmeralda Alaminos, Teddy Angarita-Sierra, Weverton S. Azevedo, Hugo Cabral, Priscila Carvalho, Sonia Cechin, Nathalie Citeli, Ângelo C. M. Dourado, André F. V. Duarte, Frederico G. R. França, Eliza M. X Freire, Paulo C. A. Garcia, Rafael Mol, Ricardo Montero, Antônio Moraes-Da-Silva, Daniel C. Passos, Paulo Passos, Renata Perez, Juan M. Pleguezuelos, Pedro Prado, Ana Lúcia C. Prudente, Raul F. D. Sales … & Jhonny J. M. Guedes
Studying species interactions in nature often requires elaborate logistics and intense fieldwork. The difficulties in such task might hinder our ability to answer questions on how biotic interactions change with the environment. Fortunately, a workaround to this problem lies within scientific collections. For some animals, the inspection of preserved specimens can reveal the scars of past antagonistic encounters, such as predation attempts. A common defensive behaviour that leaves scars on animals is autotomy, the loss...

Data from: A comprehensive analysis of autocorrelation and bias in home range estimation

Michael J. Noonan, Marlee A. Tucker, Christen H. Fleming, Tom S. Akre, Susan C. Alberts, Abdullahi H. Ali, Jeanne Altmann, Pamela C. Antunes, Jerrold L. Belant, Dean Beyer, Niels Blaum, Katrin Böhning-Gaese, , Rogerio De Paula Cunha, Jasja Dekker, Jonathan Drescher-Lehman, Nina Farwig, Claudia Fichtel, Christina Fischer, Adam T. Ford, Jacob R. Goheen, René Janssen, Florian Jeltsch, Matthew Kauffman, Peter M. Kappeler … & Justin M. Calabrese
Home range estimation is routine practice in ecological research. While advances in animal tracking technology have increased our capacity to collect data to support home range analysis, these same advances have also resulted in increasingly autocorrelated data. Consequently, the question of which home range estimator to use on modern, highly autocorrelated tracking data remains open. This question is particularly relevant given that most estimators assume independently sampled data. Here, we provide a comprehensive evaluation of...

Support for the habitat amount hypothesis from a global synthesis of species density studies

James Watling, Víctor Arroyo-Rodríguez, Marion Pfeifer, Lander Baeten, Cristina Banks-Leite, Laura Cisneros, Rebecca Fang, Caroli Hamel-Leigue, Thibault Lachat, Inara Leal, Luc Lens, Hugh Possingham, Dinarzarde Raheem, Danilo Ribeiro, Eleanor Slade, Nicolas Urbina-Cardona, Eric Wood & Lenore Fahrig
Decades of research suggest that species richness depends on spatial characteristics of habitat patches, especially their size and isolation. In contrast, the habitat amount hypothesis predicts that: 1) species richness in plots of fixed size (species density) is more strongly and positively related to the amount of habitat around the plot than to patch size or isolation; 2) habitat amount better predicts species density than patch size and isolation combined, 3) there is no effect...

The influence of biogeographical and evolutionary histories on morphological trait-matching and resource specialization in mutualistic hummingbird-plant networks

Bo Dalsgaard, Pietro Maruyama, Jesper Sonne, Katrine Hansen, Thais Zanata, Stefan Abrahamczyk, Ruben Alarcon, Andréa Araujo, Francielle Araújo, Silvana Buzato, Edgar Chávez-González, Aline Coelho, Pete Cotton, Román Díaz-Valenzuela, Maria Dufke, Paula Enríquez, Manoel Martins Dias Filho, Erich Fischer, Glauco Kohler, Carlos Lara, Flor Maria Las-Casas, Liliana Rosero Lasprilla, Adriana Machado, Caio Machado, Maria Maglianesi … & Ana M. Martín González
Functional traits can determine pairwise species interactions, such as those between plants and pollinators. However, the effects of biogeography and evolutionary history on trait-matching and trait-mediated resource specialization remain poorly understood. We compiled a database of 93 mutualistic hummingbird-plant networks (including 181 hummingbird and 1,256 plant species), complemented by morphological measures of hummingbird bill and floral corolla length. We divided the hummingbirds into their principal clades and used knowledge on hummingbird biogeography to divide the...

Assessing the importance of reproductive modes for the evaluation of altitudinal distribution patterns in tropical frogs

Carla Siqueira, Davor Vrcibradic, Mauricio Almeida-Gomes & Carlos Frederico Rocha
Altitudinal patterns in species richness vary among taxa and are shaped by the intrinsic traits of different organisms and their response to environmental variables. We evaluated the relationship between anuran richness and elevation along local and regional altitudinal gradients within the Brazilian Atlantic Forest based on data from fieldwork (local dataset; 100-1,900 m a.s.l.) and on compiled secondary information (regional dataset; 0-2,300 m a.s.l.). We also tested whether frog distribution patterns were consistent with the...

Late peripheral facial paralysis after COVID-19: a rapid systematic review and two case reports

Thalitta Mendes Cavalcante, Vanessa Terezinha Gubert, Carolina de Deus Lima, Larissa Anjos Luciano, Mariana Garcia Croda, James Venturini, Antonio Luiz Dal Bello Gasparoto, Wellyngton Matheus Souza Santiago, Ana Rita Coimbra Motta-Castro, Fernanda Paes Reis, Ana Paula da Costa Marques, Aline Pedroso Lorenz, Wellington Santos Fava, Marina Castilhos Souza Umaki Zardin, Cláudia Elizabeth Volpe Chaves, Gabriel Pereira Braga, Anamaria Mello Miranda Paniago & Sandra Maria do Valle Leone de Oliveira
Abstract Peripheral facial paralysis (PFP) has been shown to be a neurological manifestation of COVID-19. The current study presents two cases of PFP after COVID-19, along with a rapid review of known cases in the literature. Both case reports were conducted following CARE guidelines. We also performed a systematic review of PFP cases temporally related to COVID-19 using PubMed, Embase, and Cochrane Library databases on August 30, 2021, using a rapid review methodology. The two...

Tuberculosis in prison inmates in Southern Brazil: investigating the epidemiological and operational indicators

Caroline Busatto, Julia Mespaque, Pauline Schwarzbold, Camilo Darsie de Souza, Carla Adriane Jarczewski, Rodrigo Dalke Meucci, Jason Andrews, Julio Croda, Pedro Eduardo Almeida da Silva, Ivy Bastos Ramis & Lia Gonçalves Possuelo
ABSTRACT Background: Tuberculosis is a worldwide public health problem and is more prevalent in specific populations, such as prisoners. The aim of this study was to analyze the epidemiological and operational indicators of tuberculosis in prisoners in a southern region of Brazil. Methods: This was a descriptive, observational study, utilizing secondary data from the Notifiable Diseases Information System on tuberculosis cases diagnosed in prisoners in the state of Rio Grande do Sul, southern Brazil, from...

A scoping study of pulmonary paracoccidioidomycosis: severity classification based on radiographic and tomographic evaluation

Sergio Marrone Ribeiro, Thiago Franchi Nunes, Ricardo de Souza Cavalcante, Anamaria Mello Miranda Paniago, Beatriz Aparecida Soares Pereira & Rinaldo Poncio Mendes
Abstract The lungs have great importance in patients with paracoccidioidomycosis since they are the portal of entry for the infecting fungi, the site of quiescent foci, and one of the most frequently affected organs. Although they have been the subject of many studies with different approaches, the severity classification of the pulmonary involvement, using imaging procedures, has not been carried out yet. This study aimed to classify the active and the residual pulmonary damage using...

Data from: Chewing on the trees: constraints and adaptation in the evolution of the primate mandible

Carlo Meloro, Nilton Carlos Cáceres, Francesco Carotenuto, Jonas Sponchiado, Geruza Leal Melo, Federico Passaro & Pasquale Raia
Chewing on different food types is a demanding biological function. The classic assumption in studying the shape of feeding apparatuses is that animals are what they eat, meaning that adaptation to different food items accounts for most of their interspecific variation. Yet, a growing body of evidence points against this concept. We use the primate mandible as a model structure to investigate the complex interplay between shape, size, diet and phylogeny. We find a weak...

River dams and the stability of bird communities: A hierarchical Bayesian analysis in a tropical hydroelectric power plant

Tarcísio Abreu, Sandro Berg, Iubatã Faria, Leonardo Gomes, Jader Marinho-Filho & Guarino Colli
The effects of anthropogenic disturbance upon the stability of wildlife communities depend on the heterogeneity and connectivity of habitat remnants on multiple scales. The number of hydroelectric dams in biodiversity hotspots (Africa, South America and Asia) is growing rapidly. To establish their environmental impact, it is essential to understand the dynamics of wildlife communities before and following the establishment of dams. We evaluated the impacts of the filling of the Serra do Facão hydroelectric reservoir...

Data from: Architectural constraints, male fertility variation and biased floral morph ratios in tristylous populations

Nicolay L. Da Cunha & Spencer C. H. Barrett
Tristyly is a genetic polymorphism in which populations are comprised of three floral morphs (mating types) differing reciprocally in sex-organ height. Intermorph (disassortative) mating governed by a trimorphic incompatibility system should result in 1:1:1 morph ratio at equilibrium, but both deterministic and stochastic processes can cause skewed morph ratios in tristylous populations. Here, we investigate mechanisms causing morph-ratio bias in Pontederia parviflora, an emergent aquatic native to tropical America. We compared reproductive traits among morphs...

Abundance data of anuran species in forest fragments

M Almeida-Gomes, NJ Gotelli, CFD Rocha, MV Vieira & JA Prevedello
Understanding the effects of random versus niche-based processes on biodiversity patterns is a central theme in ecology, and an important tool for predicting effects of habitat loss and fragmentation on biodiversity. We investigated the predictive power of random processes to explain species richness and species dissimilarity of amphibian assemblages in a fragmented tropical landscape of the Atlantic Forest of South America. We analyzed a large database of amphibian abundance and occupancy, sampled in 21 forest...

Effect of supplementation of ewes in the final third of gestation on the development of their lambs

Nathália Rafaela Fidelis Campos, Gelson dos Santos Difante, Antonio Leandro Chaves Gurgel, Carolina Marques Costa, Denise Baptaglin Montagner, João Virgínio Emerenciano Neto, Luís Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Roldão Teixeira de Carvalho Netto, Emmanuel Lievio de Lima Véras & Ana Beatriz Graciano da Costa
ABSTRACT This study examined the effect of different supplementation strategies for ewes in the last third of gestation, kept on a deferred Brachiaria brizantha cv. Marandu pasture, on their performance and the growth curve of their lambs. A total of 54 ewes, of no defined breed, with an average weight of 41.10±3.10 kg, were used in a completely randomized design, divided into three groups (18 ewes per treatment). In total, 61 lambs were born, 28...

Giant Reed (Arundo donax L.) Fiber Extraction and Characterization for Its Use in Polymer Composites

Luis Suárez, Mateusz Barczewski, Paulina Kosmela, María D. Marrero & Zaida Ortega
This work describes an extraction method for giant reed fibers from stems and leaves based on chemical soaking and crushing through a rolling mill. Obtained fibers, together with the shredded plant (stems + leaves), are characterized in terms of chemical composition, thermal stability, morphology, and crystallinity. Mechanical properties of fibers have also been assessed (single fiber tensile tests). The results show that the proposed method allows obtaining fibers with higher cellulose content (near 70%), good...

Data from: Moving in the Anthropocene: global reductions in terrestrial mammalian movements

Marlee A. Tucker, Katrin Böhning-Gaese, William F. Fagan, John M. Fryxell, Bram Van Moorter, Susan C. Alberts, Abdullahi H. Ali, Andrew M. Allen, Nina Attias, Tal Avgar, Hattie Bartlam-Brooks, Buuveibaatar Bayarbaatar, Jerrold L. Belant, Alessandra Bertassoni, Dean Beyer, Laura Bidner, Floris M. Van Beest, Stephen Blake, Niels Blaum, Chloe Bracis, Danielle Brown, P. J. Nico De Bruyn, Francesca Cagnacci, Justin M. Calabrese, Constança Camilo-Alves … & Thomas Mueller
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of the anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database of 803 individuals across 57 species, we found that movements of mammals in areas with a comparatively high human footprint were on average one-half to one-third the extent of their movements in areas with a low human footprint. We attribute this reduction to behavioral...

Data from: Climate effects on fish body size-trophic position relationship depend on ecosystem type

Danyhelton D.F. Dantas, Adriano Caliman, Rafael D. Guariento, Ronaldo Angelini, Luciana S. Carneiro, Sergio M.Q. Lima, Pablo A. Martinez & José L. Attayde
The energetic demand of consumers increases with body size and temperature. This implies that energetic constraints may limit the trophic position of larger consumers, which is expected to be lower in tropical than in temperate regions to compensate for energy limitation. Using a global dataset of 3,635 marine and freshwater ray-finned fish species, we addressed if and how climate affects the fish body size-trophic position relationship in both freshwater and marine ecosystems, while controlling for...

Allometric escape from acoustic constraints in frog calls is rare

Joao Filipe Tonini, Diogo Provete, Natan Maciel, Alessandro Morais, Sandra Goutte, Felipe Toledo & R. Alexander Pyron
Allometric constraint is a product of natural selection, particularly with respect to body size and traits constrained by physical properties thereof, such as metabolism, longevity, and vocal frequency. Parameters describing allometric relationships are conserved across most lineages, indicating that physical constraints dictate scaling patterns in deep time, despite substantial genetic and ecological divergence among organisms. Acoustic allometry (sound frequency ~ body size) is conserved across frogs, in defiance of massive variation in both body size...

Ecological mechanisms explaining interactions within plant-hummingbird networks: morphological matching increases towards lower latitudes

Jesper Sonne, Jeferson Vizentin-Bugoni, Pietro K. Maruyama, Andréa C. Araújo, Edgar Chávez-González, Aline G. Coelho, Peter A. Cotton, Oscar H. Marín-Gómez, Carlos Lara, Liliana R. Lasprilla, Caio G. Machado, Maria A. Maglianesi, Tiago S. Malucelli, Ana M. Martín-González, Genilda M. Oliveira, Paulo E. Oliveira, Raul Ortiz-Pulido, Márcia A. Rocca, Licléia C. Rodrigues, Ivan Sazima, Benno I. Simmons, Boris Tinoco, Isabela G. Varassin, Marcelo F. Vasconcelos, Bob O’Hara … & Bo Dalsgaard
Interactions between species are influenced by different ecological mechanisms, such as morphological matching, phenological overlap, and species abundances. How these mechanisms explain interaction frequencies across environmental gradients remains poorly understood. Consequently, we also know little about the mechanisms that drive the geographical patterns in network structure, such as complementary specialization and modularity. Here, we use data on morphologies, phenologies and abundances to explain interaction frequencies between hummingbirds and plants at a large geographic scale. For...

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Affiliations

  • Federal University of Mato Grosso do Sul
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  • São Paulo State University
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  • Federal University of Rio de Janeiro
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  • Field Museum of Natural History
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