65 Works

To hop or not to hop? the answer is in the bird trees

Pauline Provini & Elizabeth Höfling
Birds can use different types of gaits to move on the ground: they either walk, hop, or run. Although velocity can easily explain a preference for running, it remains unclear what drives a bird species to favour hopping over walking. As many hopping birds are relatively small and arboreal, we wanted to test the link between size, arboreality and hopping ability. First, we carried out ancestral character state reconstructions of size range, hopping ability and...

Using a coalescent approach to assess gene flow and effective population size of Acrocomia aculeata (Jacq.) Lodd. Ex Mart. in the Brazilian Atlantic Forest

Renan Marcelo Portela, Evandro Vagner Tambarussi, João Ricardo Bachega Feijó Rosa, Ananda Virginia De Aguiar, Fabiana Schmidt Bandeira Peres & Flávio Bertin Gandara
Acrocomia aculeata is a tropical palm tree native to Central and South America that has significant economic, social, and environmental potential. However, land encroachment due to the expansion of agribusiness, and other factors such as urban sprawl, have resulted in the fragmentation and destruction of its habitat, leading to the loss of genes and genotypes in A. aculeata populations. In this context, the objective of this study was to characterize the genetic variability of A....

Diversification history of clown tree frogs in Neotropical rainforests (Anura, Hylidae, Dendropsophus leucophyllatus group)

Renata Pirani, Pedro Peloso, Joyce Prado, Érico Polo, Lacey Knowles, Santiago Ron, Miguel Rodrigues, Marcelo Sturaro & Fernanda Werneck
General consensus emphasizes that no single biological process can explain the patterns of species’ distributions and diversification in the Neotropics. Instead, the interplay of several processes across space and time must be taken into account. Here we investigated the phylogenetic relationships and biogeographic history of tree frogs in the Dendropsophus leucophyllatus species group (Amphibia: Hylidae), which is distributed across Amazonia and the Atlantic rainforests. Using Next Generation Sequencing (NGS) and double digest restriction-site associated DNA...

Investigating morphological complexes using informational dissonance and bayes factors: A case study in corbiculate bees

Diego Porto, Eduardo Almeida & Matthew Pennell
It is widely recognized that different regions of a genome often have different evolutionary histories and that ignoring this variation when estimating phylogenies can be misleading. However, the extent to which this is also true for morphological data is still largely unknown. Discordance among morphological traits might plausibly arise due to either variable convergent selection pressures or else phenomena such as hemiplasy. Here we investigate patterns of discordance among 282 morphological characters, which we scored...

Data from: Copulatory function and development shape modular architecture of genitalia differently in males and females

Bruno C. Genevcius, Monique N. Simon, Tamara Moraes & Cristiano F. Schwertner
Genitalia are multitasking structures whose development is mediated by numerous regulatory pathways. This multi-factorial nature provides an avenue for multiple sources of selection. As a result, genitalia tend to evolve as modular systems comprising semi-independent subsets of structures, yet the processes that give rise to those patterns are still poorly understood. Here, we ask what are the relative roles of development and function in shaping modular patterns of genitalia within populations and across species of...

Coronavirus prevalence in Brazilian Amazon and Sao Paulo city

Tassila Salomon, Oliver Pybus, Rafael França, Marcia Castro, Ester Cerdeira Sabino, Christopher Dye, Michael Busch, Moritz U. G. Kraemer, Charles Whittaker, Andreza Santos, Nuno Faria, Rafael Pereira, Lewis Buss, , Claudia Abrahim, Maria Carvalho, Allyson Costa, Manoel Barral-Netto, Crispim Myuki, Brian Custer, Cesar De Almeida-Neto, Suzete Ferreira, Nelson Fraiji, Susie Gurzenda, Leonardo Kamaura … & Maria Belotti
SARS-CoV-2 spread rapidly in the Brazilian Amazon. Mortality was elevated, despite the young population, with the health services and cemeteries overwhelmed. The attack rate in this region is an estimate of the final epidemic size in an unmitigated epidemic. Here we show that by June, one month after the epidemic peak in Manaus, capital of the Amazonas state, 44% of the population had detectable IgG antibodies. This equates to a cumulative incidence of 52% after...

Total Ortholog Median Matrix (TOMM): an alternative unsupervised approach for phylogenomics based on evolutionary distance between protein coding genes

Sandra R. Maruyama, Luana A. Rogerio, Patrícia Domingues Freitas, Marta Maria Teixeira & José Marcos Ribeiro
The increasing number of available genomic data allowed the development of phylogenomic analytical tools. Current methods compile information from single gene phylogenies, whether based on topologies or multiple sequence alignments. Generally, phylogenomic analyses elect gene families or genomic regions to construct phylogenomic trees. Here, we presented an alternative approach for Phylogenomics, named TOMM (Total Ortholog Median Matrix), to construct a representative phylogram composed by amino acid distance measures of all pairwise ortholog protein sequence pairs...

Estudo intercultural sobre a interação mãe-filho(a) em jogo livre aos 9 meses em diades brasileiras e portuguesas

Cristina Rodrigues, Camila Ribeiro, Dionísia Lamônica, Pedro Lopes dos Santos & Marina Fuertes
Ainsworth, Bell e Stayton (1974) definem a sensibilidade maternal como capacidade de perceber e interpretar adequadamente os comportamentos e comunicações do bebé respondendo pronta e adequadamente às necessidades. Van den Boom (1997) num estudo meta-analítico apresenta a mutualidade/reciprocidade como fatores importantes na sensibilidade das mães, ganhando assim um sentido diádico, no qual a qualidade da interação resulta do produto da sensibilidade do adulto com a cooperação infantil. Embora a qualidade da interação mãe-filho(a) tenha sido...

Data from: Cytogenetics, geographic distribution, conservation and new species of Macrotorus (Mollinedioideae, Monimiaceae) from the Brazilian Atlantic rainforest

Elton John De Lirio, Paulo Ricardo De Oliveira Costa, Ariane Luna Peixoto, Paulo Takeo Sano & Ana Paula Moraes
A new species of Macrotorus (Monimiaceae) from the Brazilian Atlantic rainforest is here described and illustrated: M. genuflexus. This species, restricted to the Poço das Antas Biological Reserve (situated in the central region of Rio de Janeiro state, Brazil), is the second in the genus Macrotorus. The new species description is based on morphological and cytogenetic (karyotype and genome size - GS) comparative analyses. We also report a new record of Macrotorus utriculatus for the...

O net-ativismo indígena na Amazônia, em contextos pandêmicos

Thiago Franco, Massimo Di Felice & Eliete Pereira

Traits data from trees exposed to a 50% reduction in canopy throughfall for 14 years in Caxiuanã, Brazil, September to October 2016

L. Rowland, R.S. Oliveira, P.R.L. Bittencourt, A.L. Giles, I. Coughlin, P. De Britto Costa, T. Domingues, L.V. Ferreira, S.S. Vasconcelos, J.A.S. Junior, A.A.R. Oliveira, A.C.L. Da Costa, P. Meir & M. Mencuccini
Data comprise tree trait data collected during September and October 2016 (the peak dry season), in the Caxiuanã National Forest Reserve, eastern Amazon, Brazil. 17 traits (including plot type, tree species name, diameter at breast height, tree light score, carboxylation capacity, electron transport capacity, leaf respiration in the dark, stomatal conductance, stem CO2 efflux, leaf mass per area, leaf nitrogen and phosphorus content, branch wood density, leaf water potential, xylem pressure, lumen conductance, percentage loss...

A blueprint for securing Brazil's marine biodiversity and supporting the achievement of global conservation goals

Rafael A. Magris, Micheli D. P. Costa, Carlos E. L. Ferreira, Ciro C. Vilar, Jean-Christophe Joyeux, Joel C. Creed, Margareth S. Copertino, Paulo Horta, Paulo Y. G. Sumida, Ronaldo Francini-Filho & Sergio R. Floeter
Aim: As a step towards providing support for an ecological approach to strengthening marine protected areas (MPAs) and meeting international commitments, this study combines cumulative impact assessment and conservation planning approach to undertake a large-scale spatial prioritisation. Location: Exclusive Economic Zone (EEZ) of Brazil, Southwest Atlantic Ocean Methods: We developed a prioritisation approach to protecting different habitat types, threatened species ranges, and ecological connectivity, while also mitigating the impacts of multiple threats on biodiversity. When...

Genomic data from the Brazilian sibilator frog reveals contrasting Pleistocene dynamics and regionalism in two South American dry biomes

Maria Tereza Thomé, Bryan Carstens, Miguel Rodrigues, João Alexandrino & Célio Haddad
Aim: Knowledge about the Neotropical dry formations, particularly the Caatinga, remains rudimentary compared to other biotas in the region. Here we address several biogeographical hypotheses by combining intense geographic and genomic sampling obtained for the Brazilian sibilator frog. We specifically test predictions related to the putative roles of past climate shifts (Pleistocene and Holocene) and local geographic barriers (past and current courses of the São Francisco river, SFR) in causing population differentiation in this species....

Accelerated landing in a stingless bee and its unexpected benefits for traffic congestion

Pierre Tichit, Isabel Alves-Dos-Santos, Marie Dacke & Emily Baird
To land, flying animals must simultaneously reduce speed and control their path to the target. While the control of approach speed has been studied in many different animals, little is known about the effect of target size on landing, particularly for small targets that require precise trajectory control. To begin to explore this, we recorded the stingless bee Scaptotrigona depilis landing on their natural hive entrance – a narrow wax tube built by the bees...

Historical review of terminology applied to cambial variants in Nyctaginaceae

Israel L. Cunha Neto
Premise of research. The alternative patterns of secondary growth (vascular cambial variants) in stems of Nyctaginaceae are outstanding and has been widely investigated since late 19th century. However, there are controversial interpretations in the literature regarding the existence of one or two types of cambial variants (successive cambia vs. interxylary phloem). Thus, this study aims to explore the morphological diversity of stems in Nyctaginaceae, to unravel the real nature of the cambial variant present in...

Pythons in the Eocene of Europe reveal a much older divergence of the group in sympatry with boas

Hussam Zaher & Krister Smith
Extant large constrictors, pythons and boas, have a wholly allopatric distribution that has been interpreted largely in terms of vicariance in Gondwana. Here we describe a stem pythonid based on complete skeletons from the early-middle Eocene of Messel, Germany. The new species is close in age to the divergence of Pythonidae from North American Loxocemus and corroborates a Laurasian origin and dispersal of pythons. Remarkably, it existed in sympatry with the stem boid Eoconstrictor. These...

Factors associated with attitudes toward HIV cure research among transgender women and travestis: a cross-sectional survey in São Paulo, Brazil

Robert Wozniak, Cerqueira Natalia, Dantas Maria, Bianca Mahafe, Daniel Barros, Edmilson Alves De Medeiros, Ana Soares De Oliveira, Thiago Sabino, Albert Roggenbuck, Vivian Avelino-Silva, Carrie Johnston, Jez Marston, Sebastian Bidegain, Manya Magnus, Esper Kallas, Douglas Nixon & Camila Donini
Objective: Characterizing the perceptions of groups most affected by HIV is fundamental in establishing guidelines for biomedical advancement. Although Brazil has successfully fought HIV/AIDS through several measures, transgender women still have a likelihood of HIV infection 55 times higher than the general population. This study aimed to better understand the perception and awareness of HIV cure research among the trans-identifying population in São Paulo, Brazil, and to determine factors that motivate or discourage participation in...

The combined role of dispersal and niche evolution in the diversification of Neotropical lizards

Fernanda P. Werneck, Yumi Sheu, Juan P. Zurano, Marco A. Ribeiro-Junior, Teresa C. Ávila-Pires, Miguel T. Rodrigues & Guarino R. Colli
Ecological requirements and environmental conditions can influence diversification across temporal and spatial scales. Understanding the role of ecological niche evolution under phylogenetic contexts provides insights on speciation mechanisms and possible responses to future climatic change. Large-scale phyloclimatic studies on the megadiverse Neotropics, where biomes with contrasting vegetation types occur in narrow contact, are rare. We integrate ecological and biogeographic data with phylogenetic comparative methods, to investigate the relative roles of biogeographic events and niche divergence...

Sequences of Pitcairnia flammea

Clarisse Silva-Palma, Mateus Ribeiro Mota, Fabio Pinheiro, Barbara Simões Dos Santos Leal, Carla Haisler Sardelli & Tânia Wendt Wendt
Geographic isolation and reduced population sizes can lead to local extinction, low efficacy of selection, and decreased speciation. However, population differentiation is an essential step of biological diversification. In allopatric speciation, geographically isolated populations differentiate and persist until the evolution of reproductive isolation and ecological divergence complete the speciation process. Pitcairnia flammea allow us to study the evolutionary consequences of habitat fragmentation on naturally disjoint rock outcrop species from the Brazilian Atlantic Rainforest (BAF). Our...

Climate seasonality drives ant-plant-herbivore interactions via plant phenology in an extrafloral nectary-bearing plant community

Eduardo Calixto, Letícia Novaes, Danilo Santos, Denise Lange, Xoaquín Moreira & Kleber Del-Claro
Interactions between ants and plants bearing extrafloral nectaries (EFNs) are among the most common mutualisms in Neotropical regions. Plants secrete extrafloral nectar, a carbohydrate-rich food that attracts ants, which in return protect plants against herbivores. This ant-plant mutualism is subjected to temporal variation, in which abiotic factors can drive the establishment and frequency of such mutualistic interaction. However, studies investigating how abiotic factors (e.g., climate) directly and indirectly influence ant-plant-herbivore interactions are incipient. In this...

Data from: Genomic evidence of prevalent hybridization throughout the evolutionary history of the fig-wasp pollination mutualism

Gang Wang, Xingtan Zhang, Edward Herre, Charles Cannon, Doyle McKey, Carlos Machado, Wen-Bin Yu, Michael Arnold, Rodrigo Pereira, Ray Ming, Yi-Fei Liu, Yibin Wang, Dongna Ma & Jin Chen
Ficus (figs) and their agaonid wasp pollinators present an ecologically important mutualism that also provides a rich comparative system for studying functional co-diversification throughout its coevolutionary history (~75 million years). We obtained entire nuclear, mitochondrial, and chloroplast genomes for 15 species representing all major clades of Ficus. Multiple analyses of these genomic data suggest that hybridization events have occurred throughout Ficus evolutionary history. Furthermore, cophylogenetic reconciliation analyses detect significant incongruence among all nuclear, chloroplast, and...

Optimal Defense Theory in an ant‐plant mutualism: extrafloral nectar as an induced defense is maximized in the most valuable plant structures

Eduardo Calixto, Denise Lange, Judith Bronstein, Helena Torezan-Silingardi & Kleber Del-Claro
Optimal Defense Theory (ODT) predicts that to maximize the benefits of defense against herbivores while minimizing its costs, plants will invest in defenses to structures according to their value and to the likelihood that they will be attacked. Constitutive defenses are expected in structures of high value, whereas induced defenses are expected in structures of low value. Regarding the biotic defense mediated by extrafloral nectaries (EFNs) and based on ODT, we predicted that under control...

Data from: Dunnock social status correlates with sperm speed, but fast sperm does not always equal high fitness

Carlos E. Lara, Helen R. Taylor, Benedikt Holtmann, Eduardo S. A. Santos, Sheri L. Johnson, Neil J. Gemmell & Shinichi Nakagawa
Sperm competition theory predicts that males should modulate sperm investment according to their social status. Sperm speed, one proxy of sperm quality, also influences the outcome of sperm competition because fast sperm cells may fertilize eggs before slow sperm cells. We evaluated whether the social status of males predicted their sperm speed in a wild population of dunnocks (Prunella modularis). In addition to the traditional analysis of the average speed of sperm cells per sample,...

Data from: Fruit traits of pioneer trees structure seed dispersal across distances on tropical deforested landscapes: implications for restoration

Paulo H. S. A. Camargo, Marco A. Pizo, Pedro H. S. Brancalion & Tomás A. Carlo
Pioneer trees with fleshy fruits are typically planted in restoration projects to attract frugivores as a mean to increase dispersal and accelerate forest regeneration. However, differences in fruit traits of pioneer trees can potentially influence dispersal and their restoration outcomes. Here we investigated the effects of bird and plant traits, and distance to forest fragments, on the seed rain using a tree-planting experiment replicated in 12 deforested sites in Brazil. Factors were fruit traits of...

Accelerated landings in stingless bees are triggered by visual threshold cues

Pierre Tichit, Emily Baird, Marie Dacke & Isabel Alves-Dos-Santos
Most flying animals rely primarily on visual cues to coordinate and control their trajectory when landing. Studies of visually-guided landing typically involve animals that decrease their speed before touchdown. Here, we investigate the control strategy of the stingless bee Scaptotrigona depilis, which instead accelerates when landing on its narrow hive entrance. By presenting artificial targets that resemble the entrance at different locations on the hive, we show that these accelerated landings are triggered by visual...

Registration Year

  • 2020

Resource Types

  • Dataset
  • Data Paper
  • Text


  • University of Sao Paulo
  • Universidade de São Paulo
  • Museu Paraense Emílio Goeldi
  • Federal University of Sao Paulo
  • Federal University of Technology – Paraná
  • Sao Paulo State University
  • University of Michigan–Ann Arbor
  • Federal University of São Carlos
  • Australian National University
  • Universidade Federal do ABC