667 Works

Amborella pangenome and supplementary tables v3

Ricky Hu , , , , , , , , &

Reversible diffusion-weighted imaging lesions in acute ischemic stroke: a systematic review

Nandakumar Nagaraja, John Forder, Steven Warach & Jośe Merino
Supplemental data: NNagaraja_12292019_DWI_Reversal_In_AIS_Review_Supplemental_File Supplemental Figure e-1: DWI reversal in acute ischemic stroke Supplemental Table e-1: Search Strategy Supplemental Table e-2: Variables extracted for the review Supplemental Table e-3: Imaging protocols for included studies Supplemental Table e-4: DWIR definitions used in the selected studies Supplemental Table e-5: Imaging characteristics of patients Supplemental Table e-6: QUADAS-2 tool for quality assessment of diagnostic accuracy studies by evaluating risk of bias and applicability concerns.

Dependent or Independent: Exploring the Culture of Local Coffee Shops in China

Hui Zi & Huan Chen

An Interview with Dr. Trish Hatch: An Advocate for School Counseling Policy

Jan L. Gay

Large-Scale electron microscopy database for human type 1 diabetes

Pascal de Boer & Nicole M. Pirozzi
Autoimmune β-cell destruction leads to type 1 diabetes, but the pathophysiological mechanisms remain unclear. To help address this void, we created an open-access online repository composed of large-scale electron microscopy images (‘nanotomy’) of human pancreas tissue obtained from the Network for Pancreatic Organ donors with Diabetes (nPOD; www.nanotomy.org). Nanotomy allows analyses of complete donor islets with up to macromolecular resolution. Our first results of mining the database support recent findings that suggest that type 1...

Data from: Important airborne lidar metrics of canopy structure for estimating snow interception

Micah Russell, Jan Eitel, Timothy Link & Carlos A. Silva

Data from: A social-ecological database to advance research on infrastructure development impacts in the Brazilian Amazon

Joanna M. Tucker Lima, Denis Valle, Evandro M. Moretto, Sergio M. P. Pulice, Nadia L. Zuca, Daniel R. Roquetti, Liviam E. C. Beduschi, Amanda S. Praia, Claudia P. F. Okamoto, Vinicius L. S. Carvalhaes, Evandro A. Branco, Bruna Barbezani, Emily Labandera, Kelsie Timpe & David Kaplan
Recognized as one of the world's most vital natural and cultural resources, the Amazon faces a wide variety of threats from natural resource and infrastructure development. Within this context, rigorous scientific study of the region's complex social-ecological system is critical to inform and direct decision-making toward more sustainable environmental and social outcomes. Given the Amazon's tightly linked social and ecological components and the scope of potential development impacts, effective study of this system requires an...

Data from: A survey of digitized data from U.S. fish collections in the iDigBio data aggregator

Randal A. Singer, Kevin J. Love & Lawrence M. Page
Recent changes in institutional cyberinfrastructure and collections data storage methods have dramatically improved accessibility of specimen-based data through the use of digital databases and data aggregators. This analysis of digitized fish collections in the U.S. demonstrates how information from data aggregators, in this case iDigBio, can be extracted and analyzed. Data from U.S. institutional fish collections in iDigBio were explored through a strictly programmatic approach using the ridigbio package and fishfindR web application. iDigBio facilitates...

Data from: How habitat-modifying organisms structure the food web of two coastal ecosystems

Els M. Van Der Zee, Christine Angelini, Laura L. Govers, Marjolijn J. A. Christianen, Andrew H. Altieri, Karin J. Van Der Reijden, Brian R. Silliman, Johan Van De Koppel, Matthijs Van Der Geest, Jan A. Van Gils, Henk W. Van Der Veer, Theunis Piersma, Peter C. De Ruiter, Han Olff & Tjisse Van Der Heide
The diversity and structure of ecosystems has been found to depend both on trophic interactions in food webs and on other species interactions such as habitat modification and mutualism that form non-trophic interaction networks. However, quantification of the dependencies between these two main interaction networks has remained elusive. In this study, we assessed how habitat-modifying organisms affect basic food web properties by conducting in-depth empirical investigations of two ecosystems: North American temperate fringing marshes and...

Data from: Tropical bird species have less variable body sizes

Quentin D. Read, Benjamin Baiser, John M. Grady, Phoebe L. Zarnetske, Sydne Record & Jonathan Belmaker
Ecologists have often predicted that species’ niche breadths should decline toward the equator. Dan Janzen arrived at this prediction based on climatic constraints, while Robert MacArthur argued that a latitudinal gradient in resource specialization drives the pattern. This idea has some support when it comes to thermal niches, but has rarely been explored for other niche dimensions. Body size is linked to niche dimensions related to diet, competition, and environmental tolerance in vertebrates. We identified...

Data from: Molecular phylogenetics and the evolution of fruit and leaf morphology of Dichaea (Orchidaceae: Zygopetalinae)

Kurt M. Neubig, Norris H. Williams, W. Mark Whitten & Franco Pupulin
BACKGROUND AND AIMS: The orchid genus Dichaea, with over 100 species found throughout the neotropics, is easily recognized by distichous leaves on long stems without pseudobulbs and flowers with infrastigmatic ligules. The genus has previously been divided into four sections based primarily on presence of ovary bristles and a foliar abscission layer. The aim of this work is to use DNA sequence data to estimate phylogenetic relationships within Dichaea and map the distribution of major...

Data from: The influence of host plant extrafloral nectaries on multitrophic interactions: an experimental investigation

Suzanne Koptur, Ian M. Jones & Jorge E. Peña
A field experiment was conducted with outplantings of the native perennial shrub Senna mexicana var. chapmanii in a semi-natural area adjacent to native pine rockland habitat in southern Florida. The presence of ants and the availability of extrafloral nectar were manipulated in a stratified random design. Insect communities were monitored and recorded over a period of six months with a view to addressing three main questions. Do ants provide biotic defense against key herbivores on...

Data from: Temperature explains broad patterns of Ross River virus transmission

Marta Shocket, Sadie Ryan, Erin Mordecai, Marta Strecker Shocket, Erin A Mordecai & Sadie J Ryan
Thermal biology predicts that vector-borne disease transmission peaks at intermediate temperatures and declines at high and low temperatures. However, thermal optima and limits remain unknown for most vector-borne pathogens. We built a mechanistic model for the thermal response of Ross River virus, an important mosquito-borne pathogen in Australia, Pacific Islands, and potentially at risk of emerging worldwide. Transmission peaks at moderate temperatures (26.4{degree sign}C) and declines to zero at thermal limits (17.0{degree sign}C and 31.5{degree...

Data from: Climatic variation modulates the indirect effects of large herbivores on small-mammal habitat use

Ryan A. Long, Alois Wambua, Jacob R. Goheen, Todd M. Palmer & Robert M. Pringle
Large mammalian herbivores (LMH) strongly shape the composition and architecture of plant communities. A growing literature shows that negative direct effects of LMH on vegetation frequently propagate to suppress the abundance of smaller consumers. Indirect effects of LMH on the behaviour of these consumers, however, have received comparatively little attention despite their potential ecological significance. We sought to understand (i) how LMH indirectly shape small-mammal habitat use by altering the density and distribution of understorey...

Data from: Greenhouse biogeography: the relationship of geographic range to invasion and extinction in the Cretaceous Western Interior Seaway

Corinne E. Myers, , Bruce S. Lieberman & Richard A. MacKenzie
Significant warming of Earth's climate in the near term seems increasingly likely. If significant enough, this climatic regime could, in the long term, come to resemble previous greenhouse intervals in earth history. Consequently, analysis of the fossil record during periods of extreme warmth may provide important lessons for species biology, including biogeography, in a much warmer world. To explore this issue, we analyzed the biogeographic response of 63 molluscan species to the long-term global warmth...

Data from: Fire, fragmentation, and windstorms: a recipe for tropical forest degradation

Divino V. Silvério, Paulo M. Brando, Mercedes M.C. Bustamante, Francis E. Putz, Daniel Magnabosco Marra, Shaun R. Levick & Susan E. Trumbore
1. Widespread degradation of tropical forests is caused by a variety of disturbances that interact in ways that are not well understood. 2. To explore potential synergies between edge effects, fire and windstorm damage as causes of Amazonian forest degradation, we quantified vegetation responses to a 30-minute high-intensity windstorm that in 2012, swept through a large-scale fire experiment that borders an agricultural field. Our pre- and post-windstorm measurements include tree mortality rates and modes of...

Data from: Foraging impacts of Asian megafauna on tropical rainforest structure and biodiversity

John Terborgh, Lisa C. Davenport, Lisa Ong & Ahimsa Campos-Arceiz
Megaherbivores are known to influence the structure, composition, and diversity of vegetation. In Central Africa, forest elephants act as ecological filters by breaking tree saplings and stripping them of foliage. Much less is known about impacts of megafauna on Southeast Asian rain forests. Here, we ask whether herbivory by Asian megafauna has impacts analogous to those of African forest elephants. To answer this, we studied forest (1) structure, (2) composition, (3) diversity, and (4) tree...

Data from: A molecular phylogeny of Eumorpha (Lepidoptera: Sphingidae) and the evolution of anti-predator larval eyespots

Francesca V. Ponce, Jesse W. Breinholt, Thomas Hossie, Jesse R. Barber, Daniel H. Janzen, Winnie Hallwachs & Akito Y. Kawahara
Many insects possess conspicuous external circular ring markings that resemble the eye of a vertebrate. These ‘eyespots’ typically function to startle or otherwise deter predators, but few studies have examined how eyespots have evolved. We study the evolution of the posterior larval eyespot in the charismatic New World hawkmoth genus Eumorpha. While Eumorpha has a range of posterior larval eyespot shapes and sizes, little is known of how this trait has evolved because phylogenetic relationships...

Data from: Microsatellite mutation rate in Atlantic sturgeon (Acipenser oxyrinchus)

Hanna Panagiotopoulou, James D. Austin, Katarzyna Zalewska, Magdalena Gonciarz, Kinga Czarnogórska, Jan Gawor, Piotr Weglenski & Danijela Popovic
Understanding mutation rates can greatly extend the utility of population and conservation genetic analyses. Herein we present an estimate of genome-wide microsatellite mutation rate in Atlantic sturgeon (Acipenser oxyrinchus) based on parent-offspring transmission patterns. We screened 307 individuals for parentage and mutation-rate analysis applying 43 variable markers. Out of 13,228 allele transfers, 11 mutations were detected, producing a mutation rate of 8.3x10-4 per locus per generation (95%CI: 1.48x10-3, 4.15x10-4). Single-step mutations predominated and there were...

Rare species biodiversity, socio-demographics and local and landscape characteristics in Northern California community urban gardens

Theresa Ong, Brenda Lin, Azucena Lucatero, Hamutahl Cohen, Peter Bichier, Monika Egerer, Alana Danieu, Shalene Jha & Stacy Philpott
Cities are sometimes characterized as homogenous with species assemblages composed of abundant, generalist species having similar ecological functions. Under this assumption, rare species, or species observed infrequently, would have especially high conservation value in cities for their potential to increase functional diversity. Management to increase the number of rare species in cities could be an important conservation strategy in a rapidly urbanizing world. However, most studies of species rarity define rarity in relatively pristine environments...

Moorea Biocode

Neil Davies
The core goal of the Moorea Biocode Project (MBP) is to genetically barcode every non-microbial species on Moorea. We will thus create a professionally produced, verifiable (vouchered) All Taxa Biotic Inventory (ATBI) of Moorea (Output 1), together with the informatics services needed for ATBI and biocode-enabled research in Model Ecosystems (Outcome 2). We will also design a long-term plan (business model) to ensure the financial self-sustainability of biocode services, and carry out proof of concept...

Altered Gut Microbiome Profile in Patients with Pulmonary Arterial Hypertension

Seungbum Kim
Pulmonary arterial hypertension (PAH) is considered a disease of the pulmonary vasculature. Limited progress has been made in preventing or arresting progression of PAH despite extensive efforts. Our previous studies indicated that PAH could be considered a systemic disease since its pathology involves interplay of multiple organs. This, coupled with increasing implication of the gut and its microbiome in chronic diseases, led us to hypothesize that PAH patients exhibit a distinct gut microbiome that contributes...

Comparative phylogenetics of Papilio butterfly wing shape and size demonstrates independent hindwing and forewing evolution

Hannah Owens, Delano Lewis, Fabien Condamine, Akito Kawahara & Robert Guralnick
The complex forces that shape butterfly wings have long been a subject of experimental and comparative research. Butterflies use their wings for flight, camouflage, mate recognition, warning and mimicry. However, general patterns and correlations among wing shape and size evolution are still poorly understood. We collected geometric morphometric measurements from over 1400 digitized museum specimens of Papilio swallowtails and combined them with phylogenetic data to test two hypotheses: 1) forewing shape and size evolve independently...

Changes in tree community structures in defaunated forests are not driven only by dispersal limitation

Kirstie Hazelwood, C. E. Timothy Paine, Fernando H. Cornejo-Valverde, Elizabeth G. Pringle, Harald Beck & John Terborgh
1. Bushmeat hunting has reduced population sizes of large frugivorous vertebrates throughout the tropics, thereby reducing the dispersal of seeds. This is believed to affect tree population dynamics, and therefore community composition, because the seed dispersal of large-seeded trees depends upon large-bodied vertebrates. 2. We report on a long-running study of the effect of defaunation on a tropical tree community. In three censuses over 11 years, we compared sapling recruitment between a hunted and a...

Functional trait table for mixed-species flocking birds in the Western Andes of Colombia

Harrison Jones & Scott Robinson
These data represent functional traits relevant to the foraging ecology and habitat preferences of mixed-species flock joining bird species from the Western Andes of Colombia. We collected these data based on published data for the species from the Handbook of the Birds Alive online database (del Hoyo et al. 2020), supplemented with additional natural history references were available, with the objective of calculating the functional richness contained in mixed-species flock compositions sampled across a patch...

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