254 Works

Sheltered Income: Estimating Income Under-Reporting in Canada, 1998 and 2004

Geoffrey Dunbar & Chunling Fu
We use data from the Survey of Financial Security and the Survey of Household Spending to estimate the incidence and extent of income under-reporting in Canada in 1998 and 2004. We estimate that the proportion of households under-reporting income is roughly 35 to 50 per cent in both years. Our estimates also suggest that the amount of under-reported income rose by roughly 40 per cent between 1998 and 2004 and remained stable as a proportion...

Hakai Institute Nutrients (Dosser et al., 2021)

Hayley Dosser, Hayley Dosser, Jennifer Jackson, Wiley Evans, Chris Mackenzie, Brian Hunt, Stephanie Waterman & Charles Hannah
This repository contains the Hakai Institute nutrient dataset for measurements of nitrate+nitrite, silicate, and phosphate concentration used in the publication: Dosser, H. V., Waterman, S., Jackson, J. M., Hannah, C. G., Evans, W., Hunt, B. P. V. (2021). Stark physical and biogeochemical differences and implications for ecosystem stressors in the Northeast Pacific coastal ocean. Journal of Geophysical Research: Oceans, 126, e2020JC017033. https://doi.org/10.1029/2020JC017033. Dissolved nutrient profiles for Nitrate + Nitrite, Phosphate and Silicate collected at Hakai...

Predetermined Prices and the Persistent Effects of Money on Output

Michael B. Devereux & James Yetman
This paper illustrates a model of predetermined pricing, where firms set a fixed schedule of nominal prices at the time of price readjustment, based on the work of Fischer (1977). This type of price-setting specification cannot produce any excess persistence in a fixed-duration model of staggered prices, but we show that with a probabilistic model of price adjustment, as in Calvo (1983), a predetermined pricing specification can produce excess persistence. Moreover, in response to a...

Queen-worker conflict can drive the evolution of social polymorphism and split sex ratios in facultatively eusocial life-cycles

Andres Quiñones, Gil Henriques & Ido Pen
Hamilton’s idea that haplodiploidy favors the evolution of altruism – the haplodiploidy hypothesis -- relies on the relatedness asymmetry between the sexes, caused by the sex-specific ploidies. Theoretical work on the consequences of relatedness asymmetries has significantly improved our understanding of sex-allocation and intra-colony conflicts, but the importance of haplodiploidy for the evolution of altruism came to be seen as minor. However, recently it was shown that haplodiploidy can strongly favor the evolution of eusociality,...

Signatures of mito-nuclear climate adaptation in a warbler species complex

Silu Wang, Madelyn Ore, Else Mikkelsen, Julie Lee-Yaw, Sievert Rohwer & Darren Irwin
Mitochondrial (mtDNA) and nuclear (nDNA) genes interact to govern metabolic pathways of mitochondria. When differentiated populations interbreed at secondary contact, incompatibilities between mtDNA of one population and nDNA of the other could result in low fitness of hybrids. Hermit Warblers (S. occidentalis) and Townsend’s Warblers (Setophaga townsendi) exhibit distinct mtDNA haplotypes and a few nDNA regions of high differentiation, whereas coastal S. townsendi displays a mix of these genetic patterns consistent with ancient hybridization of...

Data: Avian cultural services peak in tropical wet forests

Alejandra Echeverri, Daniel Karp, Luke Frishkoff, Jaya Krishnan, Robin Naidoo, Jiaying Zhao, Jim Zook & Kai Chan
The current biodiversity crisis involves major shifts in biological communities at local and regional scales. The consequences for Earth’s life-support systems are increasingly well-studied, but knowledge of how community shifts affect cultural services associated with wildlife lags behind. We integrated bird census data (three years across 150 point-count locations) with questionnaire surveys (>400 people) to evaluate changes in culturally important species across climate and land-use gradients in Costa Rica. For farmers, urbanites, and birdwatchers alike,...

Among-individual diet variation within a lake trout ecotype: Lack of stability of niche use

Louise Chavarie
In a polymorphic species, predictable differences in resource use are expected among ecotypes, and homogeneity in resource use is expected within an ecotype. Yet, using a broad resource spectrum has been identified as a strategy for fishes living in unproductive northern environments, where food is patchily distributed and ephemeral. We investigated whether specialization of trophic resources by individuals occurred within the generalist piscivore ecotype of lake trout from Great Bear Lake, Canada, reflective of a...

Analysis Data for \"Identifying and characterizing pesticide use on 9,000 fields of organic agriculture\"

Ashley Larsen, Sofie McComb, Claire Powers & Sofie McComb
We identify the location of ~9,000 organic fields from 2013 — 2019 using field-level crop and pesticide use data, along with state certification data, for Kern County, CA, one of the US’ most valuable crop producing counties. We parse apart how being organic relative to conventional affects decisions to spray pesticides and, if spraying, how much to spray. We show the expected probability of spraying any pesticides is reduced by about 30 percentage points for...

Adapting a propane turkey fryer to manipulate temperature in aquatic environments - Thermal manipulation datasets

Cassandra Konecny, Graham Brownlee & Christopher Harley
There is a growing need to better understand the potential impacts of altered thermal regimes on biodiversity and ecosystem function as mean temperatures, and the likelihood of extreme temperatures, continue to increase. One valuable approach to identify mechanisms and pathways of thermally-driven change at the community level is through the manipulation of temperature in the field. However, where methods exist, they are often costly or unable to produce ecologically relevant changes in temperature. Here, we...

Faster evolution of a premating reproductive barrier is not associated with faster speciation rates in New World passerine birds

Benjamin Freeman, Jonathan Rolland, Graham Montgomery & Dolph Schluter
Why are speciation rates so variable across the tree of life? One hypothesis is that this variation is explained by how rapidly reproductive barriers evolve. We tested this hypothesis by conducting a comparative study of the evolution of bird song, a premating barrier to reproduction. Speciation in birds is typically initiated when geographically isolated (allopatric) populations evolve reproductive barriers. We measured the strength of song as a premating barrier between closely related allopatric populations by...

GARD 1.5 range shapefiles used in: Global diversity patterns are explained by diversification rates at ancient, not shallow, timescales

Uri Roll, Shai Meiri, Maxwell Farrell, Jonathan Davies, John Gittleman, John Wiens & Patrick Stephens
Explaining global species richness patterns is a “Holy Grail” of ecology and evolution. These richness patterns are often attributed to spatial variation in diversification rates (speciation minus extinction). Surprisingly, prominent studies of birds, fish, and angiosperms reported higher diversification rates at higher latitudes (mismatched with richness). Yet these studies only examined diversification rates at relatively recent timescales. Here, we quantify global richness patterns among lizard and snake species (10,213; 94%) and explore their underlying causes....

Data from: Estimating encounter location distributions from animal tracking data

Michael Noonan, Ricardo Martinez-Garcia, Grace H. Davis, Margaret C. Crofoot, Roland Kays, Ben T. Hirsch, Damien Caillaud, Eric Payne, Andrew Sih, David L. Sinn, Orr Spiegel, William F. Fagan, Christen H. Fleming & Justin M. Calabrese
1. Ecologists have long been interested in linking individual behavior with higher-level processes. For motile species, this 'upscaling' is governed by how well any given movement strategy maximizes encounters with positive factors, and minimizes encounters with negative factors. Despite the importance of encounter events for a broad range of ecological processes, encounter theory has not kept pace with developments in animal tracking or movement modeling. Furthermore, existing work has focused primarily on the relationship between...

Haploid, diploid, and pooled exome capture recapitulate features of biology and paralogy in two non-model tree species

Brandon Lind, Mengmeng Lu, Dragana Obreht Vidakovic, Pooja Singh, Tom Booker, Sally Aikten & Sam Yeaman
Despite their suitability for studying evolution, many conifer species have large and repetitive giga-genomes (16-31Gbp) that create hurdles to producing high coverage SNP datasets that capture diversity from across the entirety of the genome. Due in part to multiple ancient whole genome duplication events, gene family expansion and subsequent evolution within Pinaceae, false diversity from the misalignment of paralog copies creates further challenges in accurately and reproducibly inferring evolutionary history from sequence data. Here, we...

Quasiparticle interference observation of the topologically non-trivial drumhead surface state in ZrSiTe

Sarah Burke & Brandon Stuart
Raw data and analysis code used in the publication "Quasiparticle interference observation of the topologically non-trivial drumhead surface state in ZrSiTe"

Tools, Strategies and Approaches to Anti-racism in Patient/Public Partnership in Research: a Scoping Review

Linda Li, Heather Worthington, Samira Chandani, Annette McKinnon, Hilary Edelstein & Becky Skidmore
Support for patient/public involvement in health research has built considerable momentum over the last two decades, with funding agencies recommending patient/public-researcher partnership as a means to improve quality and relevance of research. Underpinning patient engagement in health research is the motto of “Nothing about us, without us”. Canada is culturally diverse, but patients who are actively involved in research are often from similar backgrounds, including race and ethnicity. Consequently, research ideas and products sometimes fall...

Factors Influencing Blockchain-Based Supply Chain System

Although lots of research have found out that blockchain-based supply chain system can benefit companies' performance, the adoption does not lead to success at all. As a huge step of digital transformation in many corporations, adopting disruptive technology in the existing systems can always lead to failure. In this study, the impacts of technological, organizational, environmental, and individual context on the blockchain-based supply chain system adoption have been tested. Besides, the moderating effects of team...


, Jeffrey LeDue, Glaynel Alejo, Ashutosh Bhudia & Timothy Murphy
Information about the JupyterHub deployed on Alder, the Djavad Mowafaghian Centre for Brain Health (DMCBH) HPC.

Methods for Preregistration

Erica Wojcik & Janet Werker

Sleep Architecture Measured by Polysomnography in Patients with Traumatic Brain Injury: A Scoping Review

Stephanie U, Scout McWilliams, Jacqueline Purtzki, Calvin Kuo & Osman Ipsiroglu
Sleep disturbances are commonly exhibited following traumatic brain injury (TBI) and are associated with cognitive, behavioural, and/or health-related quality of life impairments. Sleep architecture, the basic organization of sleep, is affected by TBI. Polysomnography (PSG) measures multiple sleep-related neurophysiological parameters and is considered to be the gold standard assessment tool. We are conducting a scoping review of PSG findings in order to understand the dimension of sleep disturbances faced by individuals with TBI.

A systematic review of pain management options in juvenile idiopathic arthritis

Karine April, Hannah Sachs, Timothy Kwok, Adam Huber, Ciaran Duffy, Jacinthe Bisaillon, Haley Carroll, Aditi Sivakumar, Marco Ragusa, Sabrina Cavallo, Laurie Proulx, Esi Morgan, Marg Bisch, Drayton Mulindabigwi, Janice Cohen, Tania Hindi, Isabelle Gaboury, Linda Li, Andrea Boyd, Deema Couchman, Elizabeth Stringer, France Legare, Paul Fortin, Peter Tugwell & Jennifer Stinson

IDHC 2021

Mathew Vis-Dunbar, Diane Oorebeek, Charlotte Jones & Warren Brock
Posters for the 2021 Interdisciplinary Health Conference

Indigenous linguistic vitality and health: A scoping review protocol

Louise Harding, Karleen Delaurier-Lyle, Ursula Ellis, Julia Schillo & Mark Turin
Objective: The objective of this scoping review is to document and assess the extent and scope of literature on the relationships between Indigenous linguistic vitality/revitalization and health in Indigenous populations in anglophone, settler-colonial societies. Introduction: Indigenous communities have long known about the importance of their languages for wellbeing, but this topic has only recently received attention in research and policy. As an emerging, heterogeneous and interdisciplinary field of work that has not yet been comprehensively...

Thrive: Living with others and desire for solitude

Yoonseok Choi & Christiane Hoppmann
As the COVID-19 pandemic has restricted social interactions, living with others has been suggested as a protective factor against social isolation and loneliness (Sisson et al., 2020). However, living with others is not without problems. People living together can experience conflicts, and staying together in times of conflict could increase relationship-related stress (Birditt et al., 2019). For parents, caregiving burden has increased as mandatory home-schooling has been implemented (Prime et al., 2020). Even if there...

Beliefs and Coping with COVID-19

Mary Moussa Rogers, Corey Cook, Jon Grahe, John Edlund, Martha Zlokovich, Megan Irgens, Kelly Cuccolo, Rita Obeid, Tenzin Yangchen, Annette Addo-Yobo, Kalu Ogba, Danielle DeNigris, Hojjatollah Farahani, Parviz Azadfallah, Christina Shane-Simpson, Kyle Danielson, Lisa Rosen, Donna Demanarig, Christopher Koch, Tifani Fletcher, Tara Stoppa, Eliz Volkan, Christina Greenup, Brian Keum, Zornitsa Kalibatseva … & Sinead Younge
The purpose of this research is to investigate how psychological factors (e.g., perceived risk, knowledge, beliefs) and personal need for structure relate to psychological, behavioral, and health outcomes in response to the COVID-19 pandemic.

ENSANUT Ecuador 2018 - Open Data

J. Delgado-Ron
La Encuesta Nacional de Salud y Nutrición del Ecuador – ENSANUT 2018 es una operación estadística por muestreo probabilístico que consta en el Programa Nacional Estadístico con periodicidad quinquenal y cuyo objetivo principal es generar indicadores sobre los principales problemas y la situación de salud de la población ecuatoriana con el fin de evaluar y generar las políticas públicas en temas de salud y nutrición. Titular: Gobierno de la República del Ecuador.

Registration Year

  • 2021

Resource Types

  • Text
  • Dataset
  • Journal Article
  • Book


  • University of British Columbia
  • Fisheries and Oceans Canada
  • Simon Fraser University
  • University of Toronto
  • University of Washington
  • University of Minnesota
  • Stanford University
  • The Nature Conservancy
  • University of Alberta
  • Dalhousie University