44 Works

Data from: Geographic mosaic of plant evolution: extrafloral nectary variation mediated by ant and herbivore assemblages

Anselmo Nogueira, Pedro J. Rey, Julio M. Alcántara, Rodrigo M. Feitosa & Lúcia G. Lohmann
Herbivory is an ecological process that is known to generate different patterns of selection on defensive plant traits across populations. Studies on this topic could greatly benefit from the general framework of the Geographic Mosaic Theory of Coevolution (GMT). Here, we hypothesize that herbivory represents a strong pressure for extrafloral nectary (EFN) bearing plants, with differences in herbivore and ant visitor assemblages leading to different evolutionary pressures among localities and ultimately to differences in EFN...

Data from: What controls variation in carbon use efficiency among Amazonian tropical forests?

Christopher E. Doughty, Gregory R. Goldsmith, Nicolas Raab, Cecile A. J. Girardin, Filio Farfan-Amezquita, Walter Huaraca Huasco, Javier E. Silva-Espejo, Alejandro Araujo-Murakami, Antonio C. L. Da Costa, Wanderley Rocha, David Galbraith, Patrick Meir, Dan B. Metcalfe, Yadvinder Malhi & Walter Huaraca-Huasco
Why do some forests produce biomass more efficiently than others? Variations in Carbon Use Efficiency (CUE: total Net Primary Production (NPP)/ Gross Primary Production (GPP)) may be due to changes in wood residence time (Biomass/NPPwood), temperature, or soil nutrient status. We tested these hypotheses in 14, one ha plots across Amazonian and Andean forests where we measured most key components of net primary production (NPP: wood, fine roots, and leaves) and autotrophic respiration (Ra; wood,...

A target enrichment probe set for resolving the flagellate land plant tree of life

Jesse W. Breinholt, Sarah B. Carey, George P. Tiley, E. Christine Davis, Lorena Endara, Stuart F. McDaniel, Leandro Neves, Emily B. Sessa, Matt Von Konrat, Susan Fawcett, Stefanie M. Ickert-Bond, Paulo H. Labiak, Juan Larraín, Marcus Lehnert, Lily R. Lewis, Nathalie S. Nagalingum, Nikisha Patel, Stefan A. Rensing, Weston Testo, Alejandra Vasco, Juan Carlos Villarreal, Evelyn Webb Williams, J. Gordon Burleigh, Sahut Chantanaorrapint, Leandro G. Neves … & Stefanie M. Ickert‐Bond
Premise of the Study: New sequencing technologies enable the possibility of generating large-scale molecular datasets for constructing the plant tree of life. We describe a new probe set for target enrichment sequencing to generate nuclear sequence data to build phylogenetic trees with any flagellate land plants, including hornworts, liverworts, mosses, lycophytes, ferns, and all gymnosperms. Methods and Results: We leveraged existing transcriptome and genome sequence data to design a set of 56,989 probes for target...

Head and mandible shapes are highly integrated yet represent two distinct modules within and among worker sub-castes of the ant genus Pheidole

Alexandre Casadei Ferreira, Nicholas R. Friedman, Evan Economo, Marcio Pie & Rodrigo Feitosa
Ants use their mandibles for a wide variety of tasks related to substrate manipulation, brood transport, food processing, and colony defence. Due to constraints involved in colony upkeep, ants evolved a remarkable diversity of mandibular forms, often related to specific roles such as specialized hunting and seed milling. Considering these varied functional demands, we focused on understanding how the mandible and head shape vary within and between Pheidole sub-castes. Using x-ray microtomography and 3D geometric...

Estratégias promocionais e atendimento ao consumidor nas redes sociais digitais: o caso do Ponto Frio no Twitter

Edna Miola & Francisco Marques

A pandemia de fake news no Facebook durante a covid-19

Erivelto Amarante

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...

Estimular em casa a vontade de aprender: uma experiência

Valdir Rosa, Selma Santos Rosa, Eliana Santana Lisboa & Jéfer Benedett Dörr
A educação inicia no seio familiar e visa à socialização, aprendizagem e incorporação de valores éticos e morais. Essa relação, atualmente, tem sofrido influência das tecnologias digitais. Frente a esse contexto, realizamos um estudo de caso, de natureza descritiva e exploratória, com abordagem qualitativa, que objetivou identificar se os hábitos e costumes vivenciados no seio familiar têm contribuído para que a criança tire partido do potencial educativo dessas ferramentas e desenvolva o Pensamento Computacional. Participaram...

Landmark Classification for Navigation In Indoor Environments

Marcio Schmidt, Luciene Delazari, Amanda Antunes, Caroline Marchis & Rhaissa Sarot

Off-Route Virtual Landmarks to Help Pedestrian Indoor Navigation

Marcio Schmidt, Luciene Delazari, Elias Naim & Vinícius Martins

Data from: Evidence for a thoracic crop in the workers of some Neotropical Pheidole species (Formicidae: Myrmicinae)

Alexandre Casadei Ferreira, Georg Fischer & Evan Economo
The ability of ant colonies to transport, store, and distribute food resources through trophallaxis is a key advantage of social life. Nonetheless, how the structure of the digestive system has adapted across the ant phylogeny to facilitate these abilities is still not well understood. The crop and proventriculus, structures in the ant foregut (stomodeum), have received most attention for their roles in trophallaxis. However, potential roles of the esophagus have not been as well studied....

A “Dirty” Footprint: Soil macrofauna biodiversity and fertility in Amazonian Dark Earths and adjacent soils

Wilian C. Demetrio, Ana C. Conrado, Agno N. S. Acioli, Alexandre C. Ferreira, Marie L. C. Bartz, Samuel W. James, Elodie Silva, Lilianne S. Maia, Gilvan C. Martins, Rodrigo S. Macedo, David W. G. Stanton, Patrick Lavelle, Elena Velasquez, Anne Zangerlé, Rafaella Barbosa, Sandra C. Tapia‐Coral, Aleksander W. Muniz, Alessandra Santos, Talita Ferreira, Rodrigo F. Segalla, Thibaud Decaëns, Herlon S. Nadolny, Clara P. Peña‐Venegas, Cláudia M. B. F. Maia, Amarildo Pasini … & George G. Brown
Amazonian rainforests once thought to hold an innate pristine wilderness, are increasingly known to have been densely inhabited by populations showing a diverse and complex cultural background prior to European arrival. To what extent these societies impacted their landscape is unclear. Amazonian Dark Earths (ADEs) are fertile soils found throughout the Amazon Basin, created by pre-Columbian societies as a result of more sedentary habits. Much is known of the chemistry of these soils, yet their...

Data from: Shock and stabilisation following long-term drought in tropical forest from 15 years of litterfall dynamics

Lucy Rowland, Antonio C. L. Da Costa, Alex A. R. Oliveira, Samuel S. Almeida, Leandro V. Ferreira, Yadvinder Malhi, Dan B. Metcalfe, Maurizio Mencuccini, John Grace & Patrick Meir
Litterfall dynamics in tropical forests are a good indicator of overall tropical forest function, indicative of carbon invested in both photosynthesising tissues and reproductive organs such as flowers and fruits. These dynamics are sensitive to changes in climate, such as drought, but little is known about the long-term responses of tropical forest litterfall dynamics to extended drought stress. We present a 15-year dataset of litterfall (leaf, flower and fruit, and twigs) from the world's only...

Phylogeny and character evolution of the neotropical fern genus Cyclodium (Dryopteridaceae)

Amabily Bohn, Alan R. Smith, Fernando B. Matos, Robbin C. Moran & Paulo H. Labiak
Cyclodium is a neotropical fern genus with 13 species, most of them distributed in the Amazonian lowlands, particularly in the Guianan region and along the border with the Andes. It belongs to the polybotryoid clade of Dryopteridaceae, being unique within this clade by a combination of characters related to rhizome growth, leaf dimorphism, anastomosing venation, and peltate indusia. Here we present a molecular phylogenetic hypothesis for Cyclodium resulting from Bayesian and Maximum Likelihood analyses, using...

Mullerian mimicry and the colouration patterns of sympatric coral snakes

Renan Bosque, Chaz Hyseni, Maria Luiza Gonçalves Santos, Eduardo Rangel, Camila Juliana Da Silva Dias, Jacob Hearin, , Fabricius Maia, Guarino Colli & Brice Noonan
This dataset cointains data used for the study of Müllerian mimicry in coral snakes. Coral snakes in the genus Micrurus are venomous, aposematic organisms that signal danger to predators through vivid colouration. Previous studies found that they serve as models to several harmless species of Batesian mimics. However, the extent to which Micrurus species engage in Müllerian mimicry remains poorly understood. We integrate detailed morphological and geographical distribution data to investigate if coral snakes are...

Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin

Emília Zoppas De Albuquerque, Lívia Pires Do Prado, Joudellys Andrade-Silva, Emely Laira Silva De Siqueira, Kelly Liane Da Silva Sampaio, Diego Alves, Carlos Roberto F. Brandão, Paloma L. Andrade, Rodrigo Machado Feitosa, Elmo Borges De Azevedo Koch, Jacques Hubert Charles Delabie, Itanna Fernandes, Fabrício Beggiato Baccaro, Jorge Luiz Pereira Souza, Rony Peterson Almeida & Rogério R. Silva
The state of Pará in northern Brazil is located entirely within the Amazon Basin and harbors a great diversity of landscape and vegetation types that support high levels of biodiversity. Here, we provide a comprehensive inventory of ant species and their distribution in Pará. This regional list is based on an extensive review of species records from published and unpublished sources covering a period of 134 years (1886–2020) and includes the five most representative ant...

Two new species of Miconia s.lat. (Melastomataceae) from Espírito Santo, Brazil

Renato Goldenberg, Lucas F. Bacci, Thuane Bochorny & Marcelo Reginato
We here describe two new species endemic to the state of Espírito Santo, Brazil, that belong to different clades within Miconia s.lat. Miconia quartzicola is presumably part of the Leandra s.str. clade, as indicated by its terminal inflorescences and petals with an acute apex. It has been collected only once in the municipality of Vargem Alta in disturbed vegetation on loose quartzitic substrate (‘morros de sal’). Miconia spiritusanctensis belongs to Miconia sect. Cremanium, as indicated...

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...

Data from: Life-history traits of Tubastraea coccinea: reproduction, development, and larval competence

Bruna Luz, Maikon Di Domenico, Alvaro Migotto & Marcelo Kitahara
The sun coral Tubastraea coccinea Lesson, 1829 (Dendrophylliidae) is a widely distributed shallow-water scleractinian that has extended its range to non-native habitats in recent decades. With its rapid spread, this coral is now one of the main invasive species in Brazil. Its high invasive capability is related to opportunistic characteristics, including several reproductive strategies that have allowed it to disperse rapidly and widely. To better understand the reproductive biology of T. coccinea and aid in...

Data from: A multilayer network in an herbaceous tropical community reveals multiple roles of floral visitors

Geiza Lima, Ana Virgínia Leite, Camila Souza, Cibele Castro & Elisangela Bezerra
Flower visitation does not necessarily mean pollination. In this sense, floral visitors can either act as mutualists (pollinators) or antagonists (floral robbers/thieves), indicating that these interactions are part of a continuum and that a visitor species can present multiple behaviours. We included both mutualistic and antagonistic interactions between plants and floral visitors in a multilayer network to explore the consequences (at the community level) of the dual roles played by flower visitors. The multilayer network...

Strandings of marine mammals, sea turtles and seabirds along the Paraná coast, Brazil, from 2015 to 2018.

Camila Domit, Liana Rosa, Fernanda Possatto, Felipe Torres, Marcillo Altoe, Alencar Cabral & André Silva Barreto
To assess the potential impacts on seabirds, turtles and marine mammals from oil and gas production from the oceanic Pre-Salt province at Brazil’s Santos Basin, the Brazilian environmental agency (IBAMA) required PETROBRAS, the main oil company in the basin, to implement the “Programa de Monitoramento de Praias da Bacia de Santos” (Santos Basin Beach Monitoring Program - PMP-BS). Since 2015 PMP-BS has been operating along the states of Santa Catarina, Paraná, São Paulo and Rio...

Data from: Anthropogenic disturbance of tropical forests threatens pollination services to açaí palm in the Amazon river delta

Alistair John Campbell, Luísa Gigante Carvalheiro, Marcia Motta Maués, Rodolfo Jaffé, Tereza Cristina Giannini, Madson Antonio Benjamin Freitas, Beatriz Woiski Texeira Coelho & Cristiano Menezes
The açaí palm Euterpe oleracea Mart. in the Amazon river delta has seen rapid expansion to meet increased demand for its fruit. This has been achieved by transforming lowland forest habitats (floodplains) into simplified agroforests and intensive plantation in upland areas. As açaí palm makes an important contribution to the economy and food security of local communities, identifying management approaches that support biodiversity and ecosystem processes that underpin fruit production on açaí farms is essential....

Data from: Functional richness shows spatial scale dependency in Pheidole ant assemblages from Neotropical savannas

Karen Neves, Mario Moura, Jonas Maravalhas, Renata Pacheco, Marcio Pie, Ted Schultz & Heraldo Vasconcelos
There is a growing recognition that spatial scale is important for understanding ecological processes shaping community membership, but empirical evidence on this topic is still scarce. Ecological processes such as environmental filtering can decrease functional differences among species and promote functional clustering of species assemblages, whereas interspecific competition can do the opposite. These different ecological processes are expected to take place at different spatial scales, with competition being more likely at finer scales and environmental...

Data from: Recommendations for assessing earthworm populations in Brazilian ecosystems

Herlon Nadolny, Alessandra Santos, Wilian Demetrio, Talita Ferreira, Lilianne Dos Santos Maia, Ana Caroline Conrado, Marie Bartz, Marilice Garrastazu, Elodie Da Silva, Dilmar Baretta, Amarildo Pasini, Fabiane Vezzani, José Paulo Sousa, Luis Cunha, Jerome Mathieu, Patrick Lavelle, Jörg Römbke & George Brown
Earthworms are often related to fertile soils and frequently used as environmental quality indicators. However, to optimize their use as bioindicators, their populations must be evaluated together with environmental and anthropogenic variables regulating earthworm communities. In this review we identify the earthworm, soil chemical, physical, environmental and management-related variables evaluated in 124 published studies that quantified earthworm abundance (>7300 samples) in 765 sites with different types of climate, soils, land use and management systems in...

UCE Phylogenomics resolves major relationships among Ectaheteromorph ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A new classification for the subfamilies and the description of a new genus

G P Camacho, W Franco, M G Branstetter, M R Pie, J T Longino, T R Schultz & R M Feitosa
Uncovering the evolutionary history of the subfamilies Ectatomminae and Heteroponerinae, or ectaheteromorphs, is key to understanding a major branch of the ant tree of life. Despite their diversity and ecological importance, phylogenetic relationships in the group have not been well explored. One particularly suitable tool for resolving phylogeny is the use of ultraconserved elements (UCEs), which have been shown to be ideal markers at a variety of evolutionary time scales. In the present study, we...

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