10 Works

The metabolic hormone adiponectin affects the correlation between nutritional status and pneumococcal vaccine response in vulnerable indigenous children

Kris E. Siegers, Antonius E. Van Herwaarden, Jacobus H. De Waard, Berenice Del Nogal, Peter W.M. Hermans, Doorlène Van Tienoven, Guy A.M. Berbers, Marien I. De Jonge & Lilly M. Verhagen
Background: Almost 200 million children worldwide are either undernourished or overweight. Only a few studies have addressed the effect of variation in nutritional status on vaccine response. We previously demonstrated an association between stunting and an increased post-vaccination 13-valent pneumococcal conjugate vaccine (PCV13) response. In this prospective study, we assessed to what extent metabolic hormones may be a modifier in the association between nutritional status and PCV13 response. Methods: Venezuelan children aged 6 weeks to...

Data from: Extensive hybridization between two Andean warbler species with shallow divergence in mtDNA

Laura Céspedes-Arias, Andrés Cuervo, Elisa Bonaccorso, Marialejandra Castro-Farias, Alejandro Mendoza-Santacruz, Jorge Pérez-Emán, Christopher Witt & Daniel Cadena
Studying processes acting on differentiated populations upon secondary contact, such as hybridization, is important to comprehensively understand how species are formed and maintained over time. However, avian speciation studies in the tropical Andes have largely focused on the role of topographic and ecological barriers promoting divergence in allopatry, seldom examining hybridization and introgression. We describe a hybrid zone involving 2 closely related Andean warblers (Parulidae), the Golden-fronted Redstart (Myioborus ornatus) and the Spectacled Redstart (Myioborus...

Data from: Climate mediates the effects of disturbance on ant assemblage structure

Heloise Gibb, Nathan J. Sanders, Robert R. Dunn, Simon Watson, Manoli Photakis, Silvia Abril, Alan N. Andersen, Elena Angulo, Inge Armbrecht, Xavier Arnan, Fabricio B. Baccaro, Tom R. Bishop, Raphael Boulay, Cristina Castracani, Israel Del Toro, Thibaut Delsinne, Mireia Diaz, David A. Donoso, Martha L. Enríquez, Tom M. Fayle, Donald H. Feener, Matthew C. Fitzpatrick, Crisanto Gómez, Donato A. Grasso, Sarah Groc … & C. Gomez
Many studies have focused on the impacts of climate change on biological assemblages, yet little is known about how climate interacts with other major anthropogenic influences on biodiversity, such as habitat disturbance. Using a unique global database of 1128 local ant assemblages, we examined whether climate mediates the effects of habitat disturbance on assemblage structure at a global scale. Species richness and evenness were associated positively with temperature, and negatively with disturbance. However, the interaction...

Explaining illness with evil: Pathogen prevalence fosters moral vitalism

Brock Bastian, Christin-Melanie Vauclair, Steve Loughnan, Paul Bain, Ashwini Ashokkumar, Maja Becker, Michal Bilewicz, Emma Collier-Baker, Carla Crespo, Paul W. Eastwick, Ronald Fischer, Malte Friese, Ángel Gómez, Valeschka M. Guerra, Jose Luis Castellanos Guevara, Katja Hanke, Nic Hooper, Li-Li Huang, Shi Junqi, Minoru Karasawa, Peter Kuppens, Siri Leknes, Müjde Peker, Cesar Pelay, Afoditi Pina … & William B. Swann
Pathogens represent a significant threat to human health leading to the emergence of strategies designed to help manage their negative impact. We examined how spiritual beliefs developed to explain and predict the devastating effects of pathogens and spread of infectious disease. Analysis of existing data in Studies 1 and 2 suggests that moral vitalism (beliefs about spiritual forces of evil) is higher in geographical regions characterized by historical higher levels of pathogens. Furthermore, drawing on...

Surface indicators are correlated with soil multifunctionality in global drylands

David Eldridge, Manuel Delgado-Baquerizo, José Luis Quero, Victoria Ochoa, Beatriz Gonzalo, Pablo García-Palacios, Cristina Escolar, Miguel Garcia-Gomez, Laura Beinticinco, Matthew Bowker, Donaldo Bran, Ignacio Castro, Alex Cea, Mchich Derak, Carlos Ivan Espinosa, Adriana Fronertino, Juan Gaitán, Gabriel Gatica, Susana Gómez-González, Wahida Ghiloufi, Julio Gutierrez, Elizabeth Gusmán-M., Rosa Hernandez, Frederic Hughes, Walter Muiño … & Fernando Maestre
1. Multiple ecosystem functions need to be considered simultaneously to manage and protect the many ecosystem services that are essential to people and their environments. Despite this, cost effective, tangible, relatively simple, and globally-relevant methodologies to monitor in situ soil multifunctionality, i.e. the provision of multiple ecosystem functions by soils, have not been tested at the global scale. 2. We combined correlation analysis and structural equation modelling to explore whether we could find easily measured,...

Rhizophora zonation, salinity, and nutrients in the western Atlantic

Ivania Ceron-Souza, María Beatriz Barreto, Eduardo Barreto-Pittol, Angie Silva, Gonzalo N. Feliner & Ernesto Medina
Rhizophora is the dominant genus of mangrove forests on the Atlantic coast of northern South America. What determines the zonation frequently observed in sympatric populations of the two neotropical species R. mangle, R. racemosa, and their hybrids, R. × harrisonii, is an open question. The most widely held hypothesis is that differences in salinity tolerance among the taxonomic groups explains the observed zonation. To address this question, we analyzed the elemental composition of soils and...

Data from: Patterns of selection on Plasmodium falciparum erythrocyte binding antigens after the colonisation of the New World

Erhan Yalcindag, Virginie Rougeron, Eric Elguero, Céline Arnathau, Patrick Durand, Sylvain Brisse, Laure Diancourt, Agnes Aubouy, Pierre Becquart, Umberto D'Alessandro, Didier Fontenille, Dionicia Gamboa, Amanda Maestre, Didier Ménard, Lise Musset, Oscar Noya, Vincent Veron, Albina Wide, Bernard Carme, Eric Legrand, Christine Chevillon, Francisco J. Ayala, François Renaud & Franck Prugnolle
Pathogens, which have recently colonized a new host species or new populations of the same host, are interesting models for understanding how populations may evolve in response to novel environments. During its colonization of South America from Africa Plasmodium falciparum, the main agent of malaria, has been exposed to new conditions in distinctive new human populations (Amerindian and populations of mixed origins), that likely exerted new selective pressures on the parasite's genome. Among the genes...

Data from: Diversification across the New World within the ‘blue’ cardinalids (Aves: Cardinalidae)

, Jaime Chaves, Brian Tilston Smith, Matthew J. Miller, Kevin Winker, Jorge L. Pérez-Emán, John Klicka & Robert W. Bryson
Aim: To examine the history of diversification of ‘blue’ cardinalids (Cardinalidae) across North and South America. Location: North America (including Middle America) and South America. Methods: We collected 163 individuals of the 14 species of blue cardinalids and generated multilocus sequence data (3193 base pairs from one mitochondrial and three nuclear genes) to infer phylogeographical structure and reconstruct time-calibrated species trees. We then estimated the ancestral range at each divergence event and tested for temporal...

Genetic data and niche differences suggest that disjunct populations of Diglossa brunneiventris are not sister lineages

Juan Luis Parra, Ana Maria Gutiérrez-Zuluaga, Catalina González-Quevedo, Jessica A. Oswald, Ryan S. Terrill & Jorge L. Pérez-Emán
Disjunct distributions within a species are of great interest in systematics and biogeography. This separation can function as a barrier to gene flow when the distance among populations exceeds the dispersal capacity of individuals, and depending on the duration of the barrier, it may eventually lead to speciation. Here we describe patterns of geographic differentiation of two disjunct populations of Diglossa brunneiventris separated by approximately 1000 km along the Andes. Diglossa brunneiventris vuilleumieri is isolated...

Data from: Nasopharyngeal microbiome profiles in rural Venezuelan children are associated with respiratory and gastrointestinal infections

Lilly M. Verhagen, Ismar A. Rivera-Olivero, Melanie Clerc, Mei Ling N. Chu, Jody Van Engelsdorp Gastelaars, Maartje I. Kristensen, Guy A. M. Berbers, Peter W. M. Hermans, Marien I. De Jonge, Jacobus H. De Waard & Debby Bogaert
Background: Recent research suggests that the microbiota affects susceptibility to both respiratory tract infections (RTIs) and gastrointestinal infections (GIIs). In order to optimize global treatment options, it is important to characterize microbiota profiles across different niches and geographic/socioeconomic areas where RTI and GII prevalences are high. Methods: We performed 16S sequencing of nasopharyngeal swabs from 209 Venezuelan Amerindian children aged 6 weeks–59 months who were participating in a 13-valent pneumococcal conjugate vaccine (PCV13) study. Using...

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