159 Works

Doc-Online n. 26. Imagens e sons documentais

Manuela Penafria & Marcius Freire

Framing Interaction Anchorage in Mediatized Groups

Fernando Cavalcante & Michael Hanke

Remote Sensing Applications for Abating Aircraft–Bird Strike Risks in Southeast Brazil

Natalia S. Novoselova, Alexey A. Novoselov, Arthur Macarrão, Guilherme Gallo-Ortiz & Wesley Rodrigues Silva
The rising number of aircraft collisions with birds requires the development of appropriate mitigation measures to control their populations in the vicinity of airports. The black vulture (Coragyps atratus; vultures) is considered one of the most dangerous species for aviation in Brazil. To better understand the spatial distribution patterns of flying vultures and the risks they may pose to aviation, we studied natural and anthropogenic superficial factors and then numerically estimated and mapped the risk...

Uma etnografia de dentro para fora: ensaios sobre o cinema indígena

Luiz Daminello

Data from: Unravelling the role of allochthonous aquatic resources to food web structure in a tropical riparian forest

Fátima Carolina Recalde Ruiz, Thaís Cifuentes Postali & Gustavo Q. Romero
1. The role of matter and energy flow across ecosystem boundaries for subsidized consumer populations is well known. However, little is known on the effects of allochthonous subsidies on food web structure and trophic niche dimensions of consumers in the tropics. 2. We excluded allochthonous aquatic insects from tropical streams using greenhouse-type exclosures to test the influence of aquatic allochthonous subsidies on the trophic structure and niche dimensions of terrestrial predators using stable isotope methods....

Data from: High specialization and limited structural change in plant‐herbivore networks along a successional chronosequence in tropical montane forest

Conor M. Redmond, John Auga, Bradley Gewa, Simon T. Segar, Scott E. Miller, Kenneth Molem, George D. Weiblen, Phillip T. Butterill, Gibson Maiyah, Amelia S.C. Hood, Martin Volf, Leonardo R. Jorge, Yves Basset, Vojtech Novotny, Philip T. Butterill & Amelia S. C. Hood
Secondary succession is well‐understood, to the point of being predictable for plant communities, but the successional changes in plant‐herbivore interactions remains poorly explored. This is particularly true for tropical forests, despite the increasing importance of early successional stages in tropical landscapes. Deriving expectations from successional theory, we examine properties of plant‐herbivore interaction networks while accounting for host phylogenetic structure along a succession chronosequence in montane rainforest in Papua New Guinea. We present one of the...

Data from: Evaluation of the psychometric properties of the Brazilian version of the Oral Health Literacy Assessment in Spanish and development of a shortened form of the instrument

Fernanda Maria Rovai Bado, Flávio Rebustini, Lisa Jamieson, Karine Laura Cortellazzi & Fábio Luiz Mialhe
Objective: The objective of this study was to investigate the psychometric properties of the Oral Health Literacy Assessment in Spanish (OHLA-S) for the Brazilian-Portuguese language using robust analysis and with the results disclose possibilities to develop a shorter and more valid instrument. Methods: OHLA-S is an oral health literacy instrument comprising a word recognition section and a comprehension section. It consists of 24 dental words. It was translated into the Brazilian-Portuguese language (OHLA-B) and its...

Data from: Mating system and effective population size of the overexploited Neotropical tree (Myroxylon peruiferum L.f.) and their impact on seedling production

Ellida De Aguiar Silvestre, Kaiser Dias Schwarcz, Carolina Grando, Jaqueline Bueno De Campos, Patricia Sanae Sujii, Evandro Vagner Tambarussi, Camila Menezes Trindade Macrini, José Baldin Pinheiro, Pedro Henrique Santin Brancalion & Maria Imaculada Zucchi
The reproductive system of a tree species has substantial impact on genetic diversity and structure within and among natural populations. Such information, should be considered when planning tree planting for forest restoration. Here, we describe the mating system and genetic diversity of an overexploited Neotropical tree, Myroxylon peruiferum L.f. (Fabaceae) sampled from a forest remnant (10 seed trees and 200 seeds) and assess whether the effective population size of nursery-grown seedlings (148 seedlings) is sufficient...

Data from: Metapopulation dynamics of the mistletoe and its host in savanna areas with different fire occurrence

Grazielle Sales Teodoro, Eduardo Van Den Berg & Rafael Arruda
Mistletoes are aerial hemiparasitic plants which occupy patches of favorable habitat (host trees) surrounded by unfavorable habitat and may be possibly modeled as a metapopulation. A metapopulation is defined as a subdivided population that persists due to the balance between colonization and extinction in discrete habitat patches. Our aim was to evaluate the dynamics of the mistletoe Psittacanthus robustus and its host Vochysia thyrsoidea in three Brazilian savanna areas using a metapopulation approach. We also...

Data from: Functional traits and environmental conditions predict community isotopic niches and energy pathways across spatial scales

Olivier Dézerald, Diane S. Srivastava, Régis Céréghino, Jean-François Carrias, Bruno Corbara, Vinicius F. Farjalla, Céline Leroy, Nicholas A. C. Marino, Gustavo C. O. Piccoli, Barbara A. Richardson, Michael J. Richardson, Gustavo Q. Romero & Angélica L. González
1. Despite ongoing research in food web ecology and functional biogeography, the links between food-web structure, functional traits and environmental conditions across spatial scales remain poorly understood. Trophic niches, defined as the amount of energy and elemental space occupied by species and food webs, may help bridge this divide. 2. Here, we ask how the functional traits of species, the environmental conditions of habitats and the spatial scale of analysis jointly determine the characteristics of...

Data from: Comparative analysis of adaptive and neutral markers of Drosophila mediopunctata populations dispersed among forest fragments

Marcos R. D. Batista, Rafael E. S. Penha, Silvia H. Sofia & Louis B. Klaczko
Comparison of adaptive and neutral genetic markers is a valuable approach to characterize the evolutionary consequences of populations living in environments threatened by anthropogenic disturbances, such as forest fragmentation. Shifts in allele frequencies, low genetic variability, and a small effective population size can be considered clear signs of forest fragmentation effects (due to genetic drift) over natural populations, while adaptive responses correlate with environmental variables. Brazilian Atlantic Forest had its landscape drastically reduced and fragmented....

Data from: Temporal variation in the abundance and richness of foliage-dwelling ants mediated by extrafloral nectar

Ceres Belchior, Sebastián F. Sendoya & Kleber Del-Claro
Plants bearing extrafloral nectaries (EFNs) are common in the Brazilian cerrado savanna, where climatic conditions having marked seasonality influence arboreal ant fauna organization. These ant-plant interactions have rarely been studied at community level. Here, we tested whether: 1) EFN-bearing plants are more visited by ants than EFN-lacking plants; 2) ant visitation is higher in the rainy season than in dry season; 3) plants producing young leaves are more visited than those lacking young leaves in...

Data from: Partitioning the net effect of host diversity on an emerging amphibian pathogen

C. Guilherme Becker, David Rodriguez, Luís Felipe Toledo, Ana V. Longo, Carolina Lambertini, Décio T. Corrêa, Domingos S. Leite, Célio F. B. Haddad, Kelly R. Zamudio & D. T. Correa
The ‘dilution effect’ (DE) hypothesis predicts that diverse host communities will show reduced disease. The underlying causes of pathogen dilution are complex, because they involve non-additive (driven by host interactions and differential habitat use) and additive (controlled by host species composition) mechanisms. Here, we used measures of complementarity and selection traditionally employed in the field of biodiversity–ecosystem function (BEF) to quantify the net effect of host diversity on disease dynamics of the amphibian-killing fungus Batrachochytrium...

Data from: Evolutionary history as a driver of ecological networks: a case study of plant-hummingbird interactions

Rômulo S. Vitória, Jeferson Vizentin-Bugoni & Leandro D.S. Duarte
Multiple factors drive species interactions in ecological networks, such as morphological barriers, spatio-temporal distribution, abundances and evolutionary histories of species. Novel methods are making it possible to evaluate the relative importance of each of these drivers. However, the lack of appropriate methods has prevented evaluating the extent to which interaction networks are shaped by species’ evolutionary histories. This study includes the evolutionary histories of species among the potential drivers of interactions, allowing the comparative analysis...

Acaulescence promotes speciation and shapes the distribution patterns of palms in Neotropical seasonally dry habitats

Cibele Cássia-Silva, Rafael Silva Oliveira, Lílian P. Sales, Cíntia G. Freitas, Lucas Jardim, Thaíse Emilio, Christine D. Bacon & Rosane G. Collevatti
Rainforests have been a source of lineages to open and seasonally dry habitats throughout Angiosperm evolution, especially in the Neotropics. However, the underlying mechanisms that allow such shifts remain poorly understood at large spatial scales. Here, we test whether acaulescence (an underground stem or a very short stem concealed in the ground) has affected the colonization and speciation in Neotropical seasonally dry habitats by cocosoid palms (Cocoseae). Acaulescent species maintain their growth underground, which increases...

Phytogeographic origin determines Tropical Montane Cloud Forest hydraulic trait composition

Fernanda De Vasconcellos Barros, Fernanda Barros, Paulo Bittencourt, Cleiton Eller, Caroline Signori-Müller, Leonardo Meireles & Rafael Oliveira
Tropical montane cloud forests (TMCF) have unique climatic conditions, which allow the coexistence of plant lineages with different phytogeographic origins from tropical versus temperate climates. Future climate projections suggest TMCFs will be subjected to increasing drought stress due to fog uplift and higher temperatures, possibly leading to tree mortality and local extinctions, and consequently changes in forest composition and functioning. Characterising community functional composition, trade-offs among traits and the drivers of community assembly is of...

Estratégias de aprendizagem autorregulada envolvidas na preparação de repertório avançado de violão – um estudo de caso à luz da Teoria Social Cognitiva

Camilla Silva
Recent studies regarding advanced music performance has turning themselves to cognitive processes involved in daily music practice. This activity doesn't concern just the time spent practicing, but it's efficacy and the musician's ability in controlling personal, environmental and behavioral influences. This PhD work aims to investigate the metacognitive processes applied on the advanced guitar performance. Based on the Social-Cognitive Theory and the Self-regulation construct, this research will work on bibliographical research, descriptive-correlational, focus group and...

Genomic, transcriptomic and metagenomic in populations of native stingless bees aiming the search for detoxification genes

Patricia Azevedo
O declínio drástico das abelhas, sejam elas nativas ou exóticas, é uma ameaça iminente aos serviços ecossistêmicos de polinização e, consequentemente, à segurança alimentar mundial e à preservação e conservação dos recursos naturais. Vários fatores têm sido associados a esse declínio, dentre eles o uso de inseticidas merece destaque, visto que o Brasil é o maior consumidor mundial de agrotóxicos. Assim, o presente estudo propõe montar um genoma e transcriptoma da abelha nativa sem ferrão...

Full-wave black-box transmission tower modeling in ATP-software for electromagnetic transient analysis of power systems

Anderson Ricardo Justo De Araújo
BEPE (FAPESP grant 2021/11106-0)-with Prof. Dr. Behzad Kordi from University of Manitoba (UofM), Winnipeg, Canada. The objective of the research internship is to model transmission towers (conventional and tall structures) and to predict the occurrence of backflashovers (BFs) when lightning strikes hit overhead power lines. This model consists of a tower structure, including the tower-footing grounding system buried into a realistic model of soil. Then, the tower structure model is represented by an electric circuit...

Historical biogeography of Vochysiaceae reveals an unexpected perspective of plant evolution in the Neotropics

Deise Josely Pereira Goncalves, Gustavo H. Shimizu, Edgardo M. Ortiz, Robert K. Jansen & Beryl B. Simpson
PREMISE OF THE STUDY: Despite the fast pace of exploration of the patterns and processes influencing Neotropical plant hyperdiversity, taxa explored are mostly from large groups that are widely distributed, morphologically diverse or economically important. Vochysiaceae is an example of an undersampled taxon, providing an excellent system for investigating Neotropical biogeography. We present a phylogenomic-based hypothesis of species relationships in Vochysiaceae to investigate its evolutionary history through space and time. METHODS: We inferred a phylogeny...

Análise dos efeitos da sinvastatina na via do mevalonato, na integridade da parede celular e no metaboloma bacteriano: evidências do mecanismo de ação antimicrobiano

Iago Sousa
A sinvastatina é um fármaco utilizado para a redução dos níveis de colesterol e que já demonstrou in vitro ação antimicrobiana contra algumas espécies de microrganismos, incluindo Staphylococcus aureus. Seu mecanismo de ação como agente hipolipemiante se dá pela inibição da enzima HMGCoA-redutase I, na via da produção de mevalonato em células eucarióticas. A via do mevalonato também está presente em algumas bactérias, estando relacionada com a síntese de peptidoglicano de parede celular, podendo ser...

Obtainment active carbon from solid waste and its multiple uses in the control of emerging pollutants

Robson Da Silva Rocha
The study of H2O2 electrochemical generation must address aspects of the synthesis of electrodic materials, understanding of the composition/crystallographic structures and activity of these materials for different environmental applications, not being able to stick to only one application. In this sense, this project intends to study these two aspects, firstly, the obtainment of active carbon from solid waste, being the object of study the pyrolysis and carbon activation for different applications. Next, the best materials...

Lost and found: frogs in a biodiversity hotspot rediscovered with environmental DNA

Carla Martins Lopes, Délio Baêta, Alice Valentini, Mariana Lúcio Lyra, Ariadne Fares Sabbag, João Luiz Gasparini, Tony Dejean, Célio Fernando Baptista Haddad & Kelly Raquel Zamudio
Declines and extinctions are increasing globally and challenging conservationists to keep pace with biodiversity monitoring. Organisms leave DNA traces in the environment and this free DNA in soil, water, and air is referred to as environmental DNA (eDNA). The analysis of eDNA is a highly sensitive method with the potential to rapidly assess local diversity and the status of threatened species. We searched for DNA traces of 30 target amphibian species of conservation concern, at...

Data from: Evolution of dispersal, habit, and pollination in Africa pushed Apocynaceae diversification after the Eocene-Oligocene climate transition

Nicolai M. Nürk, Cássia Bitencourt, Alessandro Rapini, Mark Fishbein, André O. Simões, David J. Middleton, Ulrich Meve, Mary E. Endress & Sigrid Liede-Schumann
Apocynaceae (the dogbane and milkweed family) is one of the ten largest flowering plant families, with approximately 5,350 species and diverse morphology and ecology, ranging from large trees and lianas that are emblematic of tropical rainforests, to herbs in temperate grasslands, to succulents in dry, open landscapes, and to vines in a wide variety of habitats. Despite a specialized and conservative basic floral architecture, Apocynaceae are hyperdiverse in flower size, corolla shape, and especially derived...

LT-Brazil: A database of leaf traits across biomes and vegetation types in Brazil

Eduardo Mariano, Taciana Gomes, Silvia Lins, Adibe Abdalla-Filho, Amin Soltangheisi, Maria Araújo, Rodrigo Almeida, Fernanda Augusto, Luiza Canisares, Siglea Chaves, Cristiane Costa, Thaís Diniz-Reis, Leonardo Galera, Melissa Martinez, Maristela Morais, Elen Perez, Lucas Reis, Carla Simon, Silvia Mardegan, Tomas Domingues, Raquel Miatto, Rafael Oliveira, Carla Reis, Gabriela Nardoto, Jens Kattge … & Luiz Martinelli
Motivation: Leaf traits represent an important component of plant functional strategies, and those related to carbon fixation and nutrient acquisition form the leaf economics spectrum. However, observations of functional leaf traits are underrepresented in tropical regions in comparison with those in temperate areas. Brazil, a country with continental scale and vast biodiversity is a timely example, where many biomes are impacted by human activities and climate change. However, leaf traits relevant to understand vegetation responses...

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  • State University of Campinas
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