34 Works

Data from: A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny

, Anne Bruneau, Nasim Azani, Marielle Babineau, Edeline Gagnon, Carole Sinou, Royce Steeves, Erin Zimmerman, C. Donovan Bailey, Lynsey Kovar, Madhugiri Nageswara-Rao, Hannah Banks, RuthP. Clark, Manuel De La Estrella, Peter Gasson, GeoffreyC. Kite, BenteB. Klitgaard, GwilymP. Lewis, Danilo Neves, Gerhard Prenner, María De Lourdes Rico-Arce, ArianeR. Barbosa, Maria Cristina López-Roberts, Luciano Paganucci De Queiroz, PétalaG. Ribeiro … & Tingshuang Yi
The classification of the legume family proposed here addresses the long-known non-monophyly of the traditionally recognised subfamily Caesalpinioideae, by recognising six robustly supported monophyletic subfamilies. This new classification uses as its framework the most comprehensive phylogenetic analyses of legumes to date, based on plastid matK gene sequences, and including near-complete sampling of genera (698 of the currently recognised 765 genera) and ca. 20% (3696) of known species. The matK gene region has been the most...

Urban forest fragments as a living laboratory for teaching botany: an example from Federal University of Rio Grande do Norte, Brazil

Leonardo Versieux & Alice Calvente
"Plant blindness" is affecting humans’ relationships with plants, which has negative consequences for both science and conservation. It is,therefore,important to find new ways to promote societal interest in botany and plants. One possibilityis encouraging the use of informal settings to promote curiosity and provide education to students. Forest fragments can be regarded as open air labs for teaching botany, especially on university campuses. We aimed to formally document the angiosperm diversity in the Mata dos...

Dataset for: Rio de Janeiro and other paleodrainages evidenced by the genetic structure of an Atlantic Forest catfish

Sergio Maia Queiroz Lima & Waldir Berbel-Filho
Aim: The disjunct distributions of freshwater organisms along coastal drainages are usually explained by paleodrainages formed during sea-level retreats that connected currently isolated basins, or by river capture from tectonic adjustments between adjoining watersheds. We evaluate the relative importance of these events on the genetic variation of freshwater fishes inhabiting the Serra do Mar in eastern Brazil, a region with steep mountains and pronounced bays. Location: Coastal river drainages in southeastern Brazil. Taxon: Catfishes of...

Restoration priorities for Caatinga dry forests: landscape resilience, connectivity and biodiversity value

Marina Antongiovanni, Eduardo Venticinque, Leandro Tambosi, Matsumoto Marcelo, Jean Paul Metzger & Carlos Roberto Fonseca
1. Restoration actions can halt biodiversity loss and rescue its services. However, in order to be effective, priority areas for restoration should be chosen based on objective large-scale restoration planning. Here, a multi-criteria graph theory (GT) framework is proposed to indicate priority areas for active restoration, based on landscape resilience, landscape connectivity, and biodiversity conservation value, focusing on threatened endemic plant species. 2. We applied this GT framework to 10,406 catchment basins of the Brazilian...

Data from: Unwrapping broken tails: Biological and environmental correlates of predation pressure in limbless reptiles

Mario R. Moura, Henrique C. Costa, Arthur D. Abegg, Esmeralda Alaminos, Teddy Angarita-Sierra, Weverton S. Azevedo, Hugo Cabral, Priscila Carvalho, Sonia Cechin, Nathalie Citeli, Ângelo C. M. Dourado, André F. V. Duarte, Frederico G. R. França, Eliza M. X Freire, Paulo C. A. Garcia, Rafael Mol, Ricardo Montero, Antônio Moraes-Da-Silva, Daniel C. Passos, Paulo Passos, Renata Perez, Juan M. Pleguezuelos, Pedro Prado, Ana Lúcia C. Prudente, Raul F. D. Sales … & Jhonny J. M. Guedes
Studying species interactions in nature often requires elaborate logistics and intense fieldwork. The difficulties in such task might hinder our ability to answer questions on how biotic interactions change with the environment. Fortunately, a workaround to this problem lies within scientific collections. For some animals, the inspection of preserved specimens can reveal the scars of past antagonistic encounters, such as predation attempts. A common defensive behaviour that leaves scars on animals is autotomy, the loss...

Social representations of motherhood for women deprived of liberty in the female prison system

Anderson Brito de Medeiros, Glauber Weder dos Santos Silva, Thaís Rosental Gabriel Lopes, Jovanka Bittencourt Leite de Carvalho, Jaime Alonso Caravaca-Morera & Francisco Arnoldo Nunes de Miranda
Abstract This paper aimed to analyze the social representations of motherhood of pregnant women, breastfeeding women, and those who experienced pregnancy in deprivation of liberty in the prison system. This qualitative study was conducted with 42 women and is grounded on the assumptions of the Theoretical Paradigm of Social Representations. Most participants were young women aged 18-39 (90.5%; n=38) and single (50.0%; n=21); 61.9% (n=26) reported two or more pregnancies and 47.6% (n=20) reported one...

Data from: Wing patterning gene redefines the mimetic history of Heliconius butterflies

Heather M. Hines, Brian A. Counterman, Riccardo Papa, Priscila Albuquerque De Moura, Marcio Z. Cardoso, Mauricio Linares, James Mallet, Robert D. Reed, Chris D. Jiggins, Marcus R. Kronforst & W. Owen McMillan
The mimetic butterflies Heliconius erato and H. melpomene have undergone parallel radiations to form a near-identical patchwork of over 20 different wing pattern races across the Neotropics. Previous molecular phylogenetic work on these radiations has suggested that similar but geographically disjunct color patterns arose multiple times independently in each species. The neutral markers used in these studies, however, can move freely across color pattern boundaries and therefore might not represent the history of the adaptive...

Data from: Speciation with gene flow in whiptail lizards from a Neotropical xeric biome

Eliana F. Oliveira, Marcelo Gehara, Vinícius A. São Pedro, Xin Chen, Edward A. Myers, Frank T. Burbrink, Daniel O. Mesquita, Adrian A. Garda, Guarino R. Colli, Miguel T. Rodrigues, Federico J. Arias, Hussam Zaher, Rodrigo M. L. Santos & Gabriel C. Costa
Two main hypotheses have been proposed to explain the diversification of the Caatinga biota. The riverine barrier hypothesis (RBH) claims that the São Francisco River (SFR) is a major biogeographic barrier to gene flow. The Pleistocene climatic fluctuation hypothesis (PCH) states that gene flow, geographic genetic structure, and demographic signatures on endemic Caatinga taxa were influenced by Quaternary climate fluctuation cycles. Herein we analyze genetic diversity and structure, phylogeographic history, and diversification of a widespread...

Data from: Sequestration and biosynthesis of cyanogenic glucosides in passion vine butterflies and consequences for the diversification of their host plants

Érika C. Pinheiro De Castro, Mika Zagrobelny, Juan Pablo Zurano, Márcio Zikan Cardoso, René Feyereisen & Søren Bak
The colorful heliconiine butterflies are distasteful to predators due to their content of defense compounds called cyanogenic glucosides (CNglcs), which they biosynthesize from aliphatic amino acids. Heliconiine larvae feed exclusively on Passiflora plants where ~30 kinds of CNglcs have been reported. Among them, some CNglcs derived from cyclopentenyl glycine can be sequestered by some Heliconius species. In order to understand the evolution of biosynthesis and sequestration of CNglcs in these butterflies and its consequences for...

Underlying microevolutionary processes parallel macroevolutionary patterns in ancient Neotropical Mountains - Ecological Niche Modeling and Corridors files

Marcos Vinicius Dantas-Queiroz, Tami Da Costa Cacossi, Bárbara Simões Santos Leal, Cleber Juliano Neves Chaves, Thais Vasconcelos, Leonardo De Melo Versieux & Clarisse Palma-Silva
Aim Ancient climatic fluctuations are invoked as the main driving force that generates the astonishing biodiversity in ancient mountains. As a result, endemism and spatial turnover are usually high and few species are widespread among entire mountain ranges, precluding the understanding of origins of macroevolutionary patterns. Here, we used a species endemic to, but widespread in, one of the most species-rich ancient mountains on the globe to test how environmental changes acted on them and...

Idiopathic intracranial hypertension: an illustrated guide for the trainee radiologist

Luísa Becker Savastano, Juliana Ávila Duarte, Thiago Bezerra, José Thiago de Souza Castro, Mariana Dalaqua & Fabiano Reis
Abstract Idiopathic intracranial hypertension is characterized by increased intracranial pressure, headache, and visual perturbations. Although the pathophysiology of idiopathic intracranial hypertension is obscure, several mechanisms have been proposed, such as increased cerebral blood volume, excessive cerebrospinal fluid volume (due to high production or impaired resorption), and inflammatory mechanisms as a likely cause of or contributor to impaired cerebrospinal fluid circulation. It predominantly affects women of reproductive age who are overweight or obese. The most common...

Data from: Interactive effects of predation risk and conspecific density on the nutrient stoichiometry of prey

Rafael D. Guariento, Luciana S. Carneiro, Jaqueilto S. Jorge, Angélica N. Borges, Francisco A. Esteves, Adriano Caliman & Jaqueiuto S. Jorge
The mere presence of predators (i.e., predation risk) can alter consumer physiology by restricting food intake and inducing stress, which can ultimately affect prey-mediated ecosystem processes such as nutrient cycling. However, many environmental factors, including conspecific density, can mediate the perception of risk by prey. Prey conspecific density has been defined as a fundamental feature that modulates perceived risk. In this study, we tested the effects of predation risk on prey nutrient stoichiometry (body and...

Data from: Global mammal betadiversity show parallel assemblage structure in similar but isolated environments

Caterina Penone, Ben G. Weinstein, Catherine H. Graham, Thomas M. Brooks, Carlo Rondinini, S. Blair Hedges, Ana D. Davidson & Gabriel C. Costa
The taxonomic, phylogenetic and trait dimensions of betadiversity each provide unique insight into the importance of historical isolation and environmental conditions in shaping global diversity. These three dimensions should, in general, be positively correlated. However, if similar environmental conditions filter species with similar trait values, then assemblages located in similar environmental conditions, but separated by large dispersal barriers, may show high taxonomic, high phylogenetic, but low trait betadiversity. Conversely, we expect lower phylogenetic diversity but...

Evolutionary history of Neotropical savannas geographically concentrates species, phylogenetic and functional diversity of lizards

Jessica Fenker, Fabricius M. C. B. Domingos, Leonardo G. Tedeschi, Dan F. Rosauer, Fernanda P. Werneck, Guarino R. Colli, Roger M. D. Ledo, Emanuel M. Fonseca, Adrian A. Garda, Derek Tucker, , Maria F. Breitman, Flavia Soares, Lilian G. Giugliano & Craig Moritz
Supporting information (scripts) to compute diversity and endemism indices copied and available by Dan Rosauer (https ://github.com/DanRosauer/phylospatial). Aim: Understanding where and why species diversity is geographically concentrated remains a challenge in biogeography and macroevolution. This is true for the Cerrado, the most biodiverse tropical savanna in the world, which has experienced profound biodiversity loss. Previous studies have focused on a single metric (species composition), neglecting the fact that ‘species’ within the biome are often composed...

Data from: Anatomy of the vegetative organs, inflorescence axis and pedicel in the Neoregelia bahiana complex (Bromeliaceae): taxonomic and ecological importance

Kleber Resende Silva, Leonardo M. Versieux & Aline Oriani
Delimitation of Bromeliaceae into genera or species is often problematic, as observed for the Neoregelia bahiana complex, distributed throughout the rocky fields of Espinhaço Range, Brazil. Considering that the anatomical characterisation of different organs is potentially important for taxonomic and ecological interpretation of this complex, we analysed roots, stems (stolon), leaves, inflorescence axes (peduncle), and pedicels in individuals from different populations. In all the studied individuals, the roots are composed of velamen, a heterogeneous cortex,...

Idiosyncratic responses to drivers of genetic differentiation in the complex landscapes of Isthmian Central America

Adrián García-Rodríguez, Carlos Guarnizo, Andrew Crawford, Adrian Garda & Gabriel Costa
Isthmian Central America (ICA) is one of the most biodiverse regions in the world, hosting an exceptionally high number of species per unit area. ICA was formed < 25 million years ago and, consequently, its biotic assemblage is relatively young and derived from both colonization and in situ diversification. Despite intensive taxonomic work on the local fauna, the potential forces driving genetic divergences and ultimately speciation in ICA remain poorly studied. Here, we used a...

Idiopathic intracranial hypertension: an illustrated guide for the trainee radiologist

Luísa Becker Savastano, Juliana Ávila Duarte, Thiago Bezerra, José Thiago de Souza Castro, Mariana Dalaqua & Fabiano Reis
Abstract Idiopathic intracranial hypertension is characterized by increased intracranial pressure, headache, and visual perturbations. Although the pathophysiology of idiopathic intracranial hypertension is obscure, several mechanisms have been proposed, such as increased cerebral blood volume, excessive cerebrospinal fluid volume (due to high production or impaired resorption), and inflammatory mechanisms as a likely cause of or contributor to impaired cerebrospinal fluid circulation. It predominantly affects women of reproductive age who are overweight or obese. The most common...

Social representations of motherhood for women deprived of liberty in the female prison system

Anderson Brito de Medeiros, Glauber Weder dos Santos Silva, Thaís Rosental Gabriel Lopes, Jovanka Bittencourt Leite de Carvalho, Jaime Alonso Caravaca-Morera & Francisco Arnoldo Nunes de Miranda
Abstract This paper aimed to analyze the social representations of motherhood of pregnant women, breastfeeding women, and those who experienced pregnancy in deprivation of liberty in the prison system. This qualitative study was conducted with 42 women and is grounded on the assumptions of the Theoretical Paradigm of Social Representations. Most participants were young women aged 18-39 (90.5%; n=38) and single (50.0%; n=21); 61.9% (n=26) reported two or more pregnancies and 47.6% (n=20) reported one...

Data from: Spatial variation in climate mediates gene flow across an island archipelago

Michael Latter Logan, M. C. Duryea, Orsolya R. Molnar, Benji J. Kessler & Ryan Calsbeek
High levels of gene flow among partially isolated populations can overwhelm selection and limit local adaptation. This process, known as “gene swamping,” can homogenize genetic diversity among populations and reduce the capacity of a species to withstand rapid environmental change. We studied brown anole lizards (Anolis sagrei) distributed across seven islands in The Bahamas. We used microsatellite markers to estimate gene flow among islands and then examined the correlation between thermal performance and island temperature....

Data from: Weak whole-plant trait coordination in a seasonally dry South American stressful environment

José L. A. Silva, Alexandre F. Souza, Adriano Caliman, Eduardo L. Voigt & Juliana E. Lichston
A core question involving both plant physiology and community ecology is whether traits from different organs are coordinated across species, beyond pairwise trait correlations. The strength of within-community trait coordination has been hypothesized to increase along gradients of environmental harshness, due to the cost of adopting ecological strategies out of the viable niche space supported by the abiotic conditions. We evaluated the strength of trait relationship and coordination in a stressful environment using 21 leaf...

Data from: On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus

Robson Scheffer-Teixeira, Adriano B. L. Tort & Adriano BL Tort
Phase-amplitude coupling between theta and multiple gamma sub-bands is a hallmark of hippocampal activity and believed to take part in information routing. More recently, theta and gamma oscillations were also reported to exhibit phase-phase coupling, or n:m phase-locking, suggesting an important mechanism of neuronal coding that has long received theoretical support. However, by analyzing simulated and actual LFPs, here we question the existence of theta-gamma phase-phase coupling in the rat hippocampus. We show that the...

More than meets the eye: syntopic and morphologically similar mangrove killifish species show different mating systems and patterns of genetic structure along the Brazilian coast

Waldir Berbel-Filho, Andrey Tatarenkov, Helder Espírito-Santo, Mateus Lira, Carlos De Leaniz, Sergio Lima & Sofia Consuegra
Different mating systems can strongly affect the extent of genetic diversity and population structure among species. Given the increased effects of genetic drift on reduced population size, theory predicts that species undergoing self-fertilization should have greater population structure than outcrossed species, however demographic dynamics may affect this scenario. The mangrove killifish clade is composed of the two only known examples of self-fertilising species among vertebrates (Kryptolebias marmoratus and K. hermaphroditus). A third species in this...

Data from: Large-scale patterns of benthic marine communities in the Brazilian Province

Anaide Wrublevski Aued, Franz Smith, Juan Pablo Quimbayo, Davi V. Cândido, Guilherme O. Longo, Carlos E. L. Ferreira, Jon D. Witman, Sergio R. Floeter & Bárbara Segal
As marine ecosystems are influenced by global and regional processes, standardized information on community structure has become crucial for assessing broad-scale responses to natural and anthropogenic disturbances. Extensive biogeographic provinces, such as the Brazilian Province in the southwest Atlantic, present numerous theoretical and methodological challenges for understanding community patterns on a macroecological scale. In particular, the Brazilian Province is composed of a complex system of heterogeneous reefs and a few offshore islands, with contrasting histories...

Global gradients in intraspecific variation in vegetative and floral traits are partially associated with climate and species richness

Jonas Kuppler, Cécile H. Albert, Gregory M. Ames, W. Scott Armbruster, Gerhard Boenisch, Florian C. Boucher, Diane R. Campbell, Liedson T. Carneiro, Eduardo Chacón-Madrigal, Brian J. Enquist, Carlos R. Fonseca, José M. Gómez, Antoine Guisan, Pedro Higuchi, Dirk N. Karger, Jens Kattge, Michael Kleyer, Nathan J. B. Kraft, Anne-Amélie C. Larue-Kontić, Amparo Lázaro, Martin Lechleitner, Deirdre Loughnan, Vanessa Minden, Ülo Niinemets, Gerhard E. Overbeck … & Robert R. Junker
Aim Intraspecific trait variation (ITV) within natural plant communities can be large, influencing local ecological processes and dynamics. Here, we shed light on how ITV in vegetative and floral traits responds to large-scale abiotic and biotic gradients (i.e. climate and species richness). Specifically, we tested if associations of ITV with temperature, precipitation and species richness were consistent with any of from four hypotheses relating to stress-tolerance and competition. Furthermore, we estimated the degree of correlation...

Islands in a green ocean: spatially structured endemism in Amazonian white-sand vegetation

Flavio Costa, Mario Terra-Araújo, Charles Zartman, Cintia Cornelius, Fernanda Carvalho, Michael Hopkins, Pedro Viana, Eduardo Prata & Alberto Vicentini
Here, we examine the influence of the spatial distribution of open White-Sand Campina (WSC) in the Amazon on the species richness and beta-diversity of their vascular plants. It is well known that beta-diversity tends to increase with geographical distance, but the influence of habitat insularity on floristic composition and endemism is still unclear. We surveyed WSC in Central and Southwestern Amazon, generating lists of species occurrences by rapid-inventory techniques to evaluate the influence of island...

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