33 Works

Tree functional traits as predictors of microburst-associated treefalls in tropical wet forests

Alana Rader, Amy Cotrell, Anna Kudla, Tiffany Lum, David Henderson & Harshad Karandikar
On 19 May 2018 a microburst caused 600 isolated forest gaps in a Costa Rican tropical forest. We surveyed fallen and standing trees within gaps to determine if certain variables are associated with treefalls. Our results highlight considerations for future research to understand the impacts of microbursts in tropical forests. Our results show that at the scale and locality of our study, treefall vulnerability to microbursts and characteristics of fall events are independent of the...

Mutation of CFAP57, a protein required for the asymmetric targeting of a subset of inner dynein arms in Chlamydomonas, causes primary ciliary dyskinesia

Susan Dutcher, Ximena Bustamante-Marin, Amjad Horani, Mihaela Stoyanova, Wu-Lin Charng, Mathieu Bottier, Patrick Sears, Wei-Ning Yin, Leigh Anne Daniels, Hailey Bowen, Donald Conrad, Michael Knowles, Lawrence Ostrowski & Maimoona Zariwala
Primary ciliary dyskinesia (PCD) is characterized by chronic airway disease, reduced fertility, and randomization of the left/right body axis. It is caused by defects of motile cilia and sperm flagella. We screened a cohort of affected individuals that lack an obvious axonemal defect for pathogenic variants using whole exome capture, next generation sequencing, and bioinformatic analysis assuming an autosomal recessive trait. We identified one subject with an apparently homozygous nonsense variant [(c.1762C>T), p.(Arg588*)] in the...

Changes in human health parameters associated with an immersive exhibit experience at a zoological institution

Audrey Coolman, Amy Niedbalski, David Powell, Corinne Kozlowski, Ashley Franklin & Sharon Deem
Zoological institutions often use immersive, naturalistic exhibits to create an inclusive atmosphere that is inviting for visitors while providing for the welfare of animals in their collections. In this study, we investigated physiological changes in salivary cortisol and blood pressure, as well as psychological changes among visitors before and after a walk through the River’s Edge, an immersive, naturalistic exhibit at the Saint Louis Zoo. Study participants had a significant reduction in salivary cortisol and...

Data on assessing the effects of genetic divergence and morphology on Anolis lizard mating

Emmanuel D'Agostino, Colin Donihue, Jonathan Losos & Anthony Geneva
The brown anole (Anolis sagrei) is a widespread neotropical lizard found on many islands in the West Indies as well as the coast of Central America. Across their range, brown anole populations show extensive ecomorphological trait variation and substantial genetic divergence. It is unclear, however, whether this genetic and morphological divergence results in reproductive isolation between populations. We investigated variation in mating behavior across populations by analyzing four hours of video of each of 234...

Data from: Experimental study of species invasion – early population dynamics and role of disturbance in invasion success

David Reznick, Sebastiano De Bona, Andres Lopez-Sepulcre, Mauricio Torres, Ronald Bassar, Paul Bentzen & Joseph Travis
Much of our understanding of natural invasions is retrospective, based on data acquired after invaders become established. As a consequence, we know little about the characteristics of the early population growth and habitat use of the invaders during establishment. Here we report on experimental introductions of guppies into natural streams in which we conducted monthly censuses of each population. Two of the four introductions were in streams with thinned canopies, which mimics a common form...

Bayesian inference of ancestral host-parasite interactions under a phylogenetic model of host repertoire evolution

Mariana P. Braga, Michael J. Landis, Sören Nylin, Niklas Janz & Fredrik Ronquist
Intimate ecological interactions, such as those between parasites and their hosts, may persist over long time spans, coupling the evolutionary histories of the lineages involved. Most methods that reconstruct the coevolutionary history of such interactions make the simplifying assumption that parasites have a single host. Many methods also focus on congruence between host and parasite phylogenies, using cospeciation as the null model. However, there is an increasing body of evidence suggesting that the host ranges...

Phylogenetic signal and evolutionary correlates of urban tolerance in a widespread neotropical lizard clade

Kristin Winchell, Klaus P. Schliep, D. Luke Mahler & Liam J. Revell
Urbanization is intensifying worldwide, and while some species tolerate and even exploit urban environments, many others are excluded entirely from this new habitat. Understanding the factors that underlie tolerance of urbanization is thus of rapidly growing importance. Here we examine urban tolerance across a diverse group of lizards: Caribbean members of the neotropical genus Anolis. Our analyses reveal that urban tolerance has strong phylogenetic signal, suggesting that closely related species tend to respond similarly to...

Biotic and abiotic drivers of plant-pollinator community assembly across wildfire gradients

Joseph LaManna, Laura Burkle, R. Belote & Jonathan Myers
1. Understanding how abiotic disturbance and biotic interactions determine pollinator and flowering-plant diversity is critically important given global climate change and widespread pollinator declines. To predict responses of pollinators and flowering-plant communities to changes in wildfire disturbance, a mechanistic understanding of how these two trophic levels respond to wildfire severity is needed. 2. We compared site-to-site variation in community composition (β-diversity), species richness, and abundances of pollinators and flowering plants among landscapes with no recent...

Genetic drift does not sufficiently explain patterns of electric signal variation among populations of the mormyrid electric fish Paramormyrops kingsleyae

Jason Gallant, Sophie Picq, Joshua H Sperling, Catherine Cheng & Bruce Carlson
Communication signals serve crucial survival and reproductive functions. In Gabon, the widely distributed mormyrid fish Paramormyrops kingsleyae emits an electric organ discharge (EOD) signal with a dual role in communication and electrolocation that exhibits remarkable variation: populations of P. kingsleyae have either biphasic or triphasic EODs, a feature which characterizes interspecific signal diversity among the Paramormyrops genus. We quantified variation in EODs of 327 P. kingsleyae from 9 populations and compared it to genetic variation...

Phylogeographic and phenotypic outcomes of brown anole colonization across the Caribbean provide insight into the beginning stages of an adaptive radiation

Jason J. Kolbe, Richard E. Glor, Marta López‐Darias, C. Verónica Gómez Pourroy, Alexis S. Harrison, Kevin De Queiroz, Liam J. Revell, Jonathan B. Losos & Robert Graham Reynolds
Some of the most important insights into the ecological and evolutionary processes of diversification and speciation have come from studies of island adaptive radiations, yet relatively little research has examined how these radiations initiate. We suggest that Anolis sagrei is a candidate for understanding the origins of the Caribbean Anolis adaptive radiation and how a colonizing anole species begins to undergo allopatric diversification, phenotypic divergence and, potentially, speciation. We undertook a genomic and morphological analysis...

A new method to reconstruct quantitative food webs and nutrient flows from isotope tracer addition experiments

Andres Lopez-Sepulcre, Matthieu Bruneaux, Sarah Michelle Collins, Rana El-Sabaawi, Alexander S Flecker & Steven A Thomas
Understanding how nutrients flow through food webs is central in ecosystem ecology. Tracer addition experiments are powerful tools to reconstruct nutrient flows by adding an isotopically enriched element into an ecosystem, and tracking its fate through time. Historically, the design and analysis of tracer studies have varied widely, ranging from descriptive studies to modeling approaches of varying complexity. Increasingly, isotope tracer data is being used being used to compare ecosystems and analyze experimental manipulations. Currently,...

Survey of Truth and Reconciliation in South Africa 2000-2001

James Gibson

Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions

Dilys M. Vela Díaz, Cecilia Blundo, Leslie Cayola, Alfredo F. Fuentes, Lucio R. Malizia & Jonathan A. Myers
Aim: Ecological niches shape species commonness and rarity, yet the relative importance of different niche mechanisms within and across ecosystems remains unresolved. We tested the influence of niche breadth (range of environmental conditions where species occur) and niche position (marginality of a species’ environmental distribution relative to the mean environmental conditions of a region) on tree-species abundance and occupancy across three biogeographic regions. Location: Argentinian Andes; Bolivian Amazon; Missouri Ozarks. Time period: 2002–2010. Major taxa...

Scripts for analyzing Paspalum vaginatum GBS data

David Goad
Seashore paspalum (Paspalum vaginatum Swartz) is a halophytic turfgrass and emerging genomic model system for the study of salt tolerance in cereals and other grasses. Despite recent interest and an increase in available tools, little is known about the diversity present in wild populations of P. vaginatum and its close relative P. distichum. Variation in ploidy, clonal propagation, hybridization, and subgenome composition appear to occur in the wild and may interact to influence geographic patterns...

Filtered SNPs for wild Paspalum vaginatum and Paspalum distichum

David Goad
Filtered SNP calls in .ped format from "Hybridization, polyploidy and clonality influence geographic patterns of diversity and salt tolerance in the model halophyte seashore paspalum (Paspalum vaginatum)". We used GBS to genotype 218 P. vaginatum and P. distichum accessions collected from the US Gulf and Atlantic coasts plus available USDA germplasm. We confirm that P. vaginatum and P. distichum are genetically distinct and that the coarse-textured ecotype of P. vaginatum is composed of hybrids between...

Data From: TERRA-REF, An open reference data set from high resolution genomics, phenomics, and imaging sensors

David LeBauer, Burnette Maxwell, Jeffrey Demieville, Noah Fahlgren, Andrew French, Roman Garnett, Zhenbin Hu, Kimberly Huynh, Rob Kooper, Zongyang Li, Maitiniyazi Maimaitijiang, Jerome Mao, Todd Mockler, Geoffrey Morris, Maria Newcomb, Michael Ottman, Philip Ozersky, Sidike Paheding, Duke Pauli, Robert Pless, Wei Qin, Kristina Riemer, Gareth Rohde, William Rooney, Vasit Sagan … & Charles Zender
The ARPA-E funded TERRA-REF project is generating open-access reference datasets for the study of plant sensing, genomics, and phenomics. Sensor data were generated by a field scanner sensing platform that captures color, thermal, hyperspectral, and active flourescence imagery as well as three dimensional structure and associated environmental measurements. This dataset is provided alongside data collected using traditional field methods in order to support calibration and validation of algorithms used to extract plot level phenotypes from...

Data from: Recent biological invasion shapes species recognition and aggressive behavior in a native species: a behavioral experiment using robots in the field

Claire Dufour, David Clark, Jonathan Losos & Anthony Herrel
Invasive species are a worldwide threat to biodiversity. Yet, our understanding of biological invasions remains incomplete, partly due to the difficulty of tracking and studying behavioral interactions in recently created species interactions. We tested whether the interactions between the recently introduced invasive lizard Anolis cristatellus and the native Anolis oculatus in Dominica have led to changes in species recognition and aggressive behavior of the native species. The use of realistic robots allowed us to test...

Data set from Argentinian plots from: 'Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions '. Global Ecology and Biogeography 2020. https://doi.org/10.1111/geb.13139

Dilys M Vela Diaz, Cecilia Blundo, Leslie Cayola, Alfredo F. Fuentes, Lucio R Malizia & Jonathan Myers
Data package for 'Untangling the importance of niche breadth and niche position as drivers of tree species abundance and occupancy across biogeographic regions '. Global Ecology and Biogeography 2020. ABSTRACT Despite decades of interest in how ecological niches shape species commonness and rarity at local and regional scales, the relative importance of different niche mechanisms within and across ecosystems remains unresolved. We tested the relative importance of niche breadth (range of environmental conditions where species...

Data from: Abundance, origin and phylogeny of plants do not predict community-level patterns of pathogen diversity and infection

Robin Schmidt, Harald Auge, Holger Deising, Isabell Hensen, Scott Mangan, Martin Schädler, Claudia Stein & Tiffany Knight
Pathogens have the potential to shape plant community structure, and thus it is important to understand the factors that determine pathogen diversity and infection in communities. The abundance, origin and evolutionary relationships of plant hosts are all known to influence pathogen patterns, and are typically studied separately. We present an observational study that examined the influence of all three factors and their interactions on the diversity of and infection of several broad taxonomic groups of...

Data from: Joint phylogenetic estimation of geographic movements and biome shifts during the global diversification of Viburnum

Michael Landis, Deren Eaton, Wendy Clement, Brian Park, Elizabeth Spriggs, Patrick Sweeney, Erika Edwards & Michael Donoghue
Phylogeny, molecular sequences, fossils, biogeography, and biome occupancy are all lines of evidence that reflect the singular evolutionary history of a clade, but they are most often studied separately, by first inferring a fossil-dated molecular phylogeny, then mapping on ancestral ranges and biomes inferred from extant species. Here we jointly model the evolution of biogeographic ranges, biome affinities, and molecular sequences, incorporating fossils to estimate a dated phylogeny for all of the 163 extant species...

Data from: Feeding specialisation and longer generation time are associated with relatively larger brains in bees

Ferran Sayol, Miguel Á. Collado, Joan Garcia-Porta, Marc A. Seid, Jason Gibbs, Ainhoa Agorreta, Diego San Mauro, Ivo Raemakers, Daniel Sol & Ignasi Bartomeus
Despite their miniature brains, insects exhibit substantial variation in brain size. Although the functional significance of this variation is increasingly recognized, research on whether differences in insect brain sizes are mainly the result of constraints or selective pressures has hardly been performed. Here, we address this gap by combining prospective and retrospective phylogenetic-based analyses of brain size for a major insect group, bees (superfamily Apoidea). Using a brain dataset of 93 species from North America...

How does viscosity contrast influence phase mixing and strain localization?

Andrew Cross, Philip Skemer, Hélène Couvy & Elizabeth Olree
Ultramylonites with well-mixed mineral phases are thought to be an essential feature of Earth-like plate tectonics, because coupled phase mixing and grain boundary pinning enable rocks to deform by grain-size-sensitive, self-softening creep mechanisms over long geologic timescales. In isoviscous two-phase composites (and in the absence of chemical exchange or reaction), bulk “geometric” phase mixing occurs via the sequential formation and disaggregation of compositional layering. However, the effects of viscosity contrast on the mechanism(s) and timescale(s)...

Variation in the strength of allometry drives rates of evolution in primate brain shape - Supplementary Material

Gabriele Sansalone, Kari Allen, Justin Ledogar, Sarah Heinz Ledogar, D. Rex Mitchell, Antonio Profico, Silvia Castiglione, Marina Melchionna, Carmela Serio, Alessandro Mondanaro, Pasquale Raia & Stephen Wroe
Large brains are a defining feature of primates, as is a clear allometric trend between body mass and brain size. However, important questions on the macroevolution of brain shape in primates remain unanswered. Here we address two: (i), does the relationship between the brain size and its shape follow allometric trends and (ii), is this relationship consistent over evolutionary time? We employ three-dimensional geometric morphometrics and phylogenetic comparative methods to answer these questions, based on...

Facultative chemosynthesis in a deep-sea anemone from hydrothermal vents in the Pescadero Basin, Gulf of California

Shana Goffredi, Cambrie Motooka, David Fike, Luciana Gusmão, Ekin Tilic, Greg Rouse & Estefanía Rodríguez
Background Numerous deep-sea invertebrates have formed symbiotic associations with internal chemosynthetic bacteria in order to harness inorganic energy sources typically unavailable to most animals. Despite success in nearly all marine habitats and their well-known associations with photosynthetic symbionts, Cnidaria remain without a clear dependence on hydrothermal vents and chemosynthetic bacterial symbionts specifically. Results A new chemosynthetic symbiosis between the sea anemone Ostiactis pearseae (Daly & Gusmão, 2007) and intracellular bacteria was discovered at ~3700 m...

Data from: Cold nights, city lights: artificial light at night reduces photoperiodically induced diapause in urban and rural populations of Aedes albopictus

Katie Westby & Kim Medley
As the planet becomes increasingly urbanized, it is imperative that we understand the ecological and evolutionary consequences of urbanization on species. One common attribute of urbanization that differs from rural areas is the prevalence of artificial light at night (ALAN). For many species, light is one of the most important and reliable environmental cues, largely governing the timing of daily and seasonal activity patterns. Recently, it has been shown that ALAN can alter behavioral, phenological,...

Registration Year

  • 2020
    33

Resource Types

  • Dataset
    33

Affiliations

  • Washington University in St. Louis
    33
  • Duke University
    3
  • University of North Carolina
    2
  • National University of Jujuy
    2
  • Yale University
    2
  • Washington University in St. Louis School of Medicine
    2
  • Marquette University
    2
  • University of Massachusetts Boston
    2
  • Cornell University
    2
  • Donald Danforth Plant Science Center
    1