11 Works

Elements of fish metacommunity structure in Neotropical freshwater streams

Thiago Bernardi Vieira, Leandro Schlemmer Brasil, Liriann Chrisley Nascimento Da Silva, Francisco Leonardo Tejerina Garro, Pedro De Podestà Uchôa De Aquino, Paulo Santos Pompeu & Paulo De Marco
The identification of the mechanisms underlying co-occurrence patterns of species is a way to identify which processes (niche, neutral or both) structure metacommunities. In this paper, our goals are to identify patterns of co-occurrence in neotropical stream fish and determine which processes structure the metacommunity and the gradients that underlie this structure. Our results pointed out that the metacommunity formed by the total pool of species is structured by a nested pattern (Hyperdispersed Species Loss)...

Data from: Current climate, but also long-term climate changes and human impacts, determine the geographic distribution of European mammal diversity

Ana Margarida Coelho Dos Santos, Marcus Cianciaruso, A. Marcia Barbosa, Luis Mauricio Bini, José Alexandre Diniz-Filho, Frederico Augusto Faleiro, Sidney Gouveia, Rafael Loyola, Nagore Medina, Thiago Rangel, Geiziane Tessarolo & Joaquín Hortal
Aim. Historical climate variations, current climate and human impacts are known to influence current species richness, but their effects on phylogenetic and trait diversity have been seldom studied. We investigated the relationship of these three factors with the independent variations of species, phylogenetic and trait diversity of European mammals. Considering the position of the 0ºC isotherm in the Last Glacial Maximum as a tipping point, we tested the following hypotheses: northern European assemblages host less...

Risk factors for mild depression in older women with overactive bladder syndrome: a cross sectional study

Raquel Jacomo, Aline Alves, Marianne Silva, Liana Matheus, Patricia Garcia, Dayanne Lorena & João De Sousa
Background: Studies demonstrate an association between severe depression and overactive bladder syndrome (OAB). However, mild depression is constantly overlooked. The aim of this study was to evaluate the clinical and sociodemographic factors associated with mild depression in women with OAB. Methods: Cross-sectional study involving 241 women over 60 years old in Brasilia, Brazil. All patients were subjected to an interview followed by questionnaires and physical examination. The clinical and sociodemographic variables analyzed were age, body...

Negative effect of turbidity on prey capture for both visual and non-visual aquatic predators

Jean Ortega, Bruno Figueiredo, Weferson Da Graça, Angelo Agostinho & Luis Bini
1. Turbidity plays an important role in aquatic predator-prey interactions. Increases in turbidity are expected to reduce prey capture rates, especially for visually oriented predators. However, there is also evidence indicating that turbidity may have little or no effect on predation rates. 2. Here, we conducted a systematic review and meta-analysis of the relationship between turbidity and capture rate. We explored possible sources of heterogeneity in the effect sizes (capture strategy, predator’s body size, relative...

Where are the bats? An environmental complementarity analysis in a megadiverse country

Ludmilla Aguiar, Maria João Ramos Pereira, Marlon Zortea, Ricardo Machado, Ludmilla M. S. Aguiar, Maria João R. Pereira, Marlon Zortéa & Ricardo B. Machado
Aim: Field surveys are necessary to overcome Wallacean shortfalls. The task is even more important when human pressure on tropical – megadiverse – ecosystems is considered. However, due to financial constraints, spatial and temporal prioritization is required. Here we used the concept of environmental complementarity to identify non-surveyed regions for bats that are environmentally different from other already surveyed regions. We highlighted regions in Brazil where field inventories could be conducted to locate new occurrences...

Data from - A new tale of lost tails: correlates of tail breakage in the worm lizard Amphisbaena vermicularis

Mario R. Moura, Jhonny J. M. Guedes & Henrique C. Costa
Predator-prey interactions are important evolutionary drivers of defensive behaviours, but they are usually difficult to record. This lack of data on natural history and ecological interactions of species can be overcome through museum specimens, at least for some reptiles. When facing aggressive interactions, reptile species may exhibit the defensive behaviour of autotomy by losing the tail, which is also known as ‘urotomy’. The inspection of preserved specimens for scars of tail breakage can reveal possible...

Leaf litter quality drives the feeding by invertebrate shredders in tropical streams

Guilherme Sena, José Francisco Gonçalves Júnior, Renato Martins, Neusa Hamada & Renan Rezende Rezende
Amazon and Cerrado forested streams show natural fluctuations in leaf-litter quantity along the time and space, suggesting a change on litter quality input. These natural fluctuations of leaf-litter have repercussion on the organic matter cycling and consequentlyeffects on leaf decomposition in forested streams. The effects of the quantity of leaf litter with contrasting traits on consumption by larvae of shredder insects from biomes with different organic matter dynamics have still been an understudied question. The...

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...

Data from: Deconstructing species richness–environment relationships in Neotropical lianas

Leila Meyer, W. Daniel Kissling, Lucia G. Lohmann, Joaquín Hortal & José A. F. Diniz-Filho
Abstract Aim: Studying species richness patterns by considering all species as equivalent units may prevent a deeper understanding of the origin and maintenance of biodiversity. Here, we deconstructed the species richness of Neotropical lianas by specific attributes of species to study richness–environment relationships. Location: Neotropics Taxon: Tribe Bignonieae (Bignoniaceae), the largest clade of Neotropical lianas Methods: We used five morphological, one geographical and two evolutionary attributes of species, each with 2–7 attribute states. We compared...

The effect of species composition dissimilarity on plant-herbivore network structure is not consistent over time

Lucas Pereira Martins, Anderson Matos Medina, Thomas Lewinsohn & Mário Almeida-Neto
The structural organization of several antagonistic networks has been demonstrated to be largely conserved through time and space even when species beta-diversity is high. This might occur either because species are replaced by others that fulfill similar network roles, or because interaction probabilities are given by species relative abundances rather than by their functional traits. Alternatively, if species-specific traits are important drivers of realized interactions, any change in species composition should promote a certain degree...

New set of microsatellite markers for the great-billed seed-finch (Sporophila maximiliani – Passeriformes: Thraupidae): tools for inspection and conservation

Amanda De Melo, Evanguedes Kalapothakis, Sandra Ludwig, Luiz Alfredo Baptista, Mariana Lara, Leo Silva & Mariana Telles
The Thraupidae family is one of the most wanted by bird breeders in Brazil due to its diverse, colorful and melodious singers as representatives. The Great-billed Seed-finch, Sporophila maximiliani, is the only representative of the genus Sporophila considered critically endangered in Brazil. Due to the demands of environmental agencies and of conservation programs, there is a need to increase the number of molecular markers available for the genus and specially for S.maximiliani. Therefore, this work...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Universidade Federal de Goiás
  • University of Brasília
  • Universidade Federal de Minas Gerais
  • Museo Nacional de Ciencias Naturales
  • New York University Abu Dhabi
  • Federal University of Paraíba
  • George Washington University
  • Federal University of Lavras
  • Autonomous University of Madrid
  • National Institute of Amazonian Research