148 Works

Data and scripts from: Total evidence phylogenetic analysis reveals polyphyly of Anostomoides and uncovers an unexpectedly ancient genus of anostomid fishes

Brian Sidlauskas, Fernando Assega, Bruno Melo, Claudio Oliveira & José Birindelli
The nearly 150 species of Anostomidae comprise one of the most diverse and taxonomically dynamic families of Neotropical freshwater fishes. A recent revision of the enigmatic and poorly diagnosed genus Anostomoides demonstrated that it contains two valid species, each with complicated taxonomic histories; however, that study did not address their phylogenetic placement. Herein, we provide the integrated molecular and morphological data and scripts used to demonstrate their distant evolutionary relationship, and thus the polyphyly of...

A atribuição do incentivo à prática de atividade física para um envelhecimento ativo proporcionado pelo acesso às redes sociais

Elisangela Gisele do Carmo, Pollyanna Natalia Micali & José Luiz Riani Costa
Olhares sobre o envelhecimento. Estudos interdisciplinares, 51-57. Volume I

Qualidade de mudas de eucalipto utilizando substratos alternativos e suplementação mineral

Paulo Renato Matos Lopes
Buscando atender o consumo crescente de produtos florestais, o eucalipto apresenta-se como uma espécie de grande interesse econômico pelo seu ciclo de corte relativamente curto de alta produtividade. Neste sentido, a produção de mudas de qualidade é imprescindível para atingir uma maior produtividade. Assim, a composição e o custo do substrato para o desenvolvimento vegetal desde as sementes são de extrema importância para o setor produtivo. Portanto, o objetivo desta pesquisa será avaliar a qualidade...

Data from: Functional extinction of birds drives rapid evolutionary changes in seed size.

Mauro Galetti, Roger Guevara, Marina C. Côrtes, Fadini Rodrigo, Sandro Von Matter, Abraão B. Leite, Fábio Labecca, Thiago Ribeiro, Carolina S. Carvalho, Rosane G. Collevatti, Mathias M. Pires, , Pedro H. Brancalion, Milton C. Ribeiro & Pedro Jordano
Local extinctions have cascading effects on ecosystem functions, yet little is known about the potential for the rapid evolutionary change of species in human-modified scenarios. We show that the functional extinction of large-gape seed dispersers in the Brazilian Atlantic forest is associated with the consistent reduction of seed size of a keystone palm species. Among 22 palm populations, areas deprived of large avian frugivores for several decades present smaller seeds than non-defaunated forests, with negative...

Data from: Systematics of spiny-backed treefrogs (Hylidae: Osteocephalus): an Amazonian puzzle

Karl-Heinz Jungfer, Julián Faivovich, José M. Padial, Santiago Castroviejo-Fisher, Mariana M. Lyra, Bianca Von Muller Berneck, Patricia P. Iglesias, Philippe J. R. Kok, Ross T. Macculloch, Miguel Trefaut Rodrigues, Vanessa K. Verdade, Claudia P. Torres Gastello, Juan Carlos Chaparro, Paula H. Valdujo, Steffen Reichle, Jiří Moravec, Václav Gvoždík, Giussepe Gagliardi-Urrutia, Raffael Ernst, Ignacio De La Riva, Donald Bruce Means, Albertina P. Lima, J. Celsa Señaris, Ward C. Wheeler & Célio F. B. Haddad
Spiny-backed tree frogs of the genus Osteocephalus are conspicuous components of the tropical wet forests of the Amazon and the Guiana Shield. Here, we revise the phylogenetic relationships of Osteocephalus and its sister group Tepuihyla, using up to 6134 bp of DNA sequences of nine mitochondrial and one nuclear gene for 338 specimens from eight countries and 218 localities, representing 89% of the 28 currently recognized nominal species. Our phylogenetic analyses reveal (i) the paraphyly...

Data from: Systematic and historical biogeography of the Bryconidae (Ostariophysi: Characiformes) suggesting a new rearrangement of its genera and an old origin of Mesoamerican ichthyofauna

Kelly T. Abe, Tatiane C. Mariguela, Gleisy S. Avelino, Fausto Foresti & Claudio Oliveira
Recent molecular hypotheses suggest that some traditional suprageneric taxa of Characiformes require revision, as they may not constitute monophyletic groups. This is the case for the Bryconidae. Various studies have proposed that this family (considered a subfamily by some authors) may be composed of different genera. However, until now, no phylogenetic study of all putative genera has been conducted. In the present study, we analyzed 27 species (46 specimens) of all currently recognized genera of...

Data from: Geographical variation in mutualistic networks: similarity, turnover and partner fidelity

Kristian Trøjelsgaard, Pedro Jordano, Daniel W. Carstensen, Jens M. Olesen & K. Trojelsgaard
Although species and their interactions in unison represent biodiversity and all the ecological and evolutionary processes associated with life, biotic interactions have, contrary to species, rarely been integrated into the concepts of spatial β-diversity. Here, we examine β-diversity of ecological networks by using pollination networks sampled across the Canary Islands. We show that adjacent and distant communities are more and less similar, respectively, in their composition of plants, pollinators and interactions than expected from random...

Reproductive systems and low outbreeding barriers between Jacaranda cuspidifolia and J. mimosifolia (Jacarandeae, Bignoniaceae)

Nelson Bittencourt
The genus Jacaranda shows notable karyotype stability and a prevailing self-sterile breeding system with evidence of late-acting self-incompatibility in several species. However, some studies have indicated self-compatibility in J. mimosifolia, a species cultivated worldwide in tropical and subtropical areas. Jacaranda cuspidifolia is a close related species with natural distribution broadly overlapping to that of J. mimosifolia, and manual heterospecific pollination studies have indicated that these species are interfertile, but there is no report on the...

Heterospecific shorebird flocks increase safety and reduce intraspecific competition

Cesar Cestari, Cristina Gonçalves & Celine Melo
Shorebirds join cohesive flocks for safety. The joining of individuals of several species in large heterospecific flocks can optimise individual vigilance and foraging. However, a large number of conspecific individuals in flocks may deplete food resources and increase intraspecific competition. In the present study, we argue that Nearctic-Neotropical migratory shorebird species join large heterospecific flocks in a balanced number as a way of controlling intraspecific competition. We recorded monospecific and heterospecific flocks in urban beaches...

Not a melting pot: plant species aggregate in their non-native range

Gisela C. Stotz, James F. Cahill, Jonathan A. Bennett, Cameron N. Carlyle, Edward W. Bork, Diana Askarizadeh, Sandor Bartha, Carl Beierkuhnlein, Bazartseren Boldgiv, Leslie Brown, Marcelo Cabido, Giandiego Campetella, Stefano Chelli, Ofer Cohen, Sandra Díaz, Lucas Enrico, David Ensing, Batdelger Erdenetsetseg, Alessandra Fidelis, Heath W. Garris, Hugh A.L. Henry, Anke Jentsch, Mohammad Hassan Jouri, Kadri Koorem, Peter Manning … & Lauchlan H. Fraser
Aim: Plant species continue to be moved outside of their native range by human activities. Here, we aim at determining whether, once introduced, plants assimilate into native communities, or whether they aggregate, thus forming mosaics of native- and alien-rich communities. Alien species may aggregate in their non-native range due to shared habitat preferences, such as their tendency to establish in high-biomass, species-poor areas. Location: 22 herbaceous grasslands in 14 countries, mainly in the temperate zone....

Data from: Relationship among medical student resilience, educational environment and quality of life

Patricia Tempski, Itamar S. Santos, Fernanda B. Mayer, Sylvia C. Enns, Bruno Perotta, Helena B. M. S. Paro, Silmar Gannam, Munique Peleias, Vera Lucia Garcia, Sergio Baldassin, Katia B. Guimaraes, Nilson R. Silva, Emirene M. T. Navarro Da Cruz, Luis F. Tofoli, Paulo S. P. Silveira & Milton A. Martins
Context: Resilience is a capacity to face and overcome adversities, with personal transformation and growth. In medical education, it is critical to understand the determinants of a positive, developmental reaction in the face of stressful, emotionally demanding situations. We studied the association among resilience, quality of life (QoL) and educational environment perceptions in medical students. Methods: We evaluated data from a random sample of 1,350 medical students from 22 Brazilian medical schools. Information from participants...

Data from: Differences in larval nutritional requirements and female oviposition preference reflect the order of fruit colonization of Zaprionus indianus and Drosophila simulans

Cristiane Matavelli, Maria João A. Carvalho, Nelson E. Martins & Christen K. Mirth
Species coexist using the same nutritional resource by partitioning it either in space or time, but few studies explore how species-specific nutritional requirements allow partitioning. Zaprionus indianus and Drosophila simulans co-exist in figs by invading the fruit at different stages; Z. indianus colonizes ripe figs, whereas D. simulans oviposits in decaying fruit. Larvae feed on yeast growing on the fruit, which serves as their primary protein source. Because yeast populations increase as fruit decays, we...

Data from: Unravelling seed dispersal through fragmented landscapes: frugivore species operate unevenly as mobile links

Juan P. González-Varo, Carolina Carvalho, Juan M. Arroyo, Pedro Jordano & Carolina S. Carvalho
Seed dispersal constitutes a pivotal process in an increasingly fragmented world, promoting population connectivity, colonization and range shifts in plants. Unveiling how multiple frugivore species disperse seeds through fragmented landscapes, operating as mobile links, has remained elusive owing to methodological constraints for monitoring seed dispersal events. We combine for the first time DNA barcoding and DNA microsatellites to identify, respectively, the frugivore species and the source trees of animal-dispersed seeds in forest and matrix of...

Data from: New insights on water buffalo genomic diversity and post-domestication migration routes from medium density SNP chip data

Licia Colli, Marco Milanesi, Elia Vajana, Daniela Iamartino, Lorenzo Bomba, Francesco Puglisi, Marcello Del Corvo, Ezequiel Luis Nicolazzi, Sahar Saad El-Din Ahmed, Jesus Rommel V. Herrera, Libertado Cruz, Shuju Zhang, Aixin Liang, Gouhua Hua, Ligou Yang, Xingjie Hao, Fuyuan Zuo, Song-Jia Lai, Shuilian Wang, Ruyu Liu, Yundeng Gong, Mahdi Mokhber, Yongjiang Mao, Feng Guan, Augustin Vlaic … & Liguo Yang
The domestic water buffalo is native to the Asian continent but through historical migrations and recent importations, nowadays has a worldwide distribution. The two types of water buffalo, i.e., river and swamp, display distinct morphological and behavioral traits, different karyotypes and also have different purposes and geographical distributions. River buffaloes from Pakistan, Iran, Turkey, Egypt, Romania, Bulgaria, Italy, Mozambique, Brazil and Colombia, and swamp buffaloes from China, Thailand, Philippines, Indonesia and Brazil were genotyped with...

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: Seasonal flooding, topography, and organic debris interact to influence the emergence and distribution of seedlings in a tropical grassland

Francielli Bao, Tracy Elsey-Quirk, Marco Antonio De Assis, Rafael Arruda & Arnildo Pott
In seasonally flooded wetlands, natural disturbances such as flooding and associated organic debris deposition followed by a drawdown period provide various opportunities for plant species regeneration, which can promote plant community diversity across space and time. Specifically, regeneration may be influenced by the direct effect of flooding on seed dispersal and seedling emergence as well as the indirect effect of organic debris on seed trapping and germination. Our objective was to examine the influence of...

Data from: Identification and validation of single nucleotide polymorphisms as tools to detect hybridization and population structure in freshwater stingrays

Vanessa Paes Cruz, Manuel Vera, Belén Gomes Pardo, John Taggart, Paulino Martinez, Claudio Oliveira & Fausto Foresti
Single nucleotide polymorphism (SNP) markers were identified and validated for two stingrays species, Potamotrygon motoro and Potamotrygon falkneri, using double digest restriction-site associated DNA (ddRAD) reads using 454-Roche technology. A total of 226 774 reads (65.5 Mb) were obtained (mean read length 289 ± 183 bp) detecting a total of 5399 contigs (mean contig length: 396 ± 91 bp). Mining this data set, a panel of 143 in silico SNPs was selected. Eighty-two of these...

Data from: Evolution and conservation of Characidium sex chromosomes

Ricardo Utsunomia, Priscilla C. Scacchetti, Miguel Hermida, Raquel Fernández-Cebrián, Xoana Taboada, Carlos Fernandez, Michaël Bekaert, Natalia J. Mendes, Diego Robledo, Judith E. Mank, John B. Taggart, Claudio Oliveira, Fausto Foresti & Paulino Martínez
Fish species exhibit substantial variation in the degree of genetic differentiation between sex chromosome pairs, and therefore offer the opportunity to study the full range of sex chromosome evolution. We used restriction-site associated DNA sequencing (RAD-seq) to study the sex chromosomes of Characidium gomesi, a species with conspicuous heteromorphic ZW/ZZ sex chromosomes. We screened 9863 single-nucleotide polymorphisms (SNPs), corresponding to ~1 marker/100 kb distributed across the genome for sex-linked variation. With this data set, we...

Data from: The opsin genes of Amazonian cichlids

Daniel Escobar-Camacho, Erica Ramos, Cesar Martins & Karen L. Carleton
Vision is a critical sense for organismal survival with visual sensitivities strongly shaped by the environment. Some freshwater fishes with a Gondwanan origin are distributed in both South American rivers including the Amazon, as well as African rivers and lakes. These different habitats likely required adaptations to murky and clear environments. In this study, we compare the molecular basis of Amazonian and African cichlid fishes’ visual systems. We used next generation sequencing of genomes and...

Data from: The role of the endemic and critically endangered Colorful Puffleg Eriocnemis mirabilis in plant-hummingbird networks of the Colombian Andes

Mónica B. Ramírez-Burbano, F. Gary Stiles, Catalina González, Felipe W. Amorim, Bo Dalsgaard, Pietro K. Maruyama. & Pietro K. Maruyama
Ecological network approaches may contribute to conservation practices by quantifying within-community importance of species. In mutualistic plant-pollinator systems, such networks reflect potential pollination of the plants and a considerable portion of the energy consumption by the pollinators, two key components for each party. Here, we used two different sampling approaches to describe mutualistic plant-hummingbird networks from a cloud forest in the Colombian Western Andes, home to the Colorful Puffleg Eriocnemis mirabilis, an endemic and critically...

Data from: Land cover and forest connectivity alter the interactions among host, pathogen and skin microbiome

C. Guilherme Becker, Ana V. Longo, Célio F.B. Haddad, Kelly R. Zamudio & C. F. B. Haddad
Deforestation has detrimental consequences on biodiversity, affecting species interactions at multiple scales. The associations among vertebrates, pathogens and their commensal/symbiotic microbial communities (i.e. microbiomes) have important downstream effects for biodiversity conservation, yet we know little about how deforestation contributes to changes in host microbial diversity and pathogen abundance. Here, we tested the effects of landcover, forest connectivity and infection by the chytrid fungus Batrachochytrium dendrobatidis (Bd) on amphibian skin bacterial diversity along deforestation gradients in...

Data from: Geographical and intrapopulation variation in the diet of a threatened marine predator, Pontoporia blainvillei (Cetacea)

Barbara Henning, Benilton De Sá Carvalho, Mathias Mistretta Pires, Manuela Bassoi, Juliana Marigo, Carolina Bertozzi & Márcio S. Araújo.
Diet variation can occur in geographically structured populations due to variation in prey availability. Within locations, diet may vary due to effects of season, sex, age, and individual. Nevertheless, these sources of variation are seldom considered together in dietary studies. Major efforts are underway to investigate population and ecological traits of marine organisms to set guidelines for conservation and management. Examining diet variation is a major concern when developing conservation guidelines for threatened species, especially...

Data from: Distribution and functionality of copy number variation across European cattle populations

Maulik Upadhyay, Vinicius H. Da Silva, Hendrik-Jan Megens, Marleen H. P. W. Visker, Paolo Ajmone-Marsan, Valentin A. Bâlteanu, Susana Dunner, Jose Fernando Garcia, Catarina Ginja, Juha Kantanen, Martien A.M. Groenen, Richard P.M.A. Crooijmans, Vinicus H. Da Silva, Martien A. M. Groenen & Richard P. M. A. Crooijmans
Copy number variation (CNV), which is characterized by large-scale losses or gains of DNA fragments, contributes significantly to genetic and phenotypic variation. Assessing CNV across different European cattle populations might reveal genetic changes responsible for phenotypic differences, which have accumulated throughout the domestication history of cattle as consequences of evolutionary forces that act upon them. To explore pattern of CNVs across European cattle, we genotyped 149 individuals, that represent different European regions, using the Illumina...

Data from: Landscape Corridors (LSCorridors): a new software package for modeling ecological corridors based on landscape patterns and species requirements

John Wesley Ribeiro, Juliana Silveira Dos Santos, Pavel Dodonov, Felipe Martello, Bernardo Brandão Niebuhr & Milton Cezar Ribeiro
1.Maintaining connectivity is one of the main challenges for biodiversity conservation worldwide. Ecological corridors are important to maintain landscape connectivity, but their efficiency depends on landscape patterns and species responses at different spatial extents and landscape contexts. 2.We developed a new ecologically oriented free software package, LandScape Corridors (LSCorridors), to improve ecological corridor design by considering biodiversity responses to landscape attributes at a variety of spatial extents. LSCorridors considers stochastic variation, species perception and landscape...

Data from: Partitioning multiple facets of beta diversity in a tropical stream macroalgal metacommunity

Ciro Branco, Pitágoras Bispo, Cleto Peres, Aurélio Tonetto, Rogério Krupek, Michael Barfield & Robert Holt
Aim: We evaluated different dimensions of beta diversity (taxonomic, phylogenetic, and functional), and its components (spatial turnover and nestedness), of a stream macroalgal metacommunity, as well as the effect of local environmental variables, types of biome, and spatial factors on these dimensions and components. Location: Ten natural areas of southern Brazil, covering the main biomes represented in the region. Methods: We analyzed a data set collected in 105 stream segments using a dissimilarity partitioning approach...

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