75 Works

Data from: Global origins of invasive brown rats (Rattus norvegicus) in the Haida Gwaii archipelago

Bryson Sjodin, Emily Puckett, Robyn Irvine, Jason Munshi-South & Michael Russello
Brown rats (Rattus norvegicus) have commensally spread from northern China and Mongolia to become among the most invasive species on the planet. Understanding the proximate source(s) of invasion can inform biosecurity plans and eradication strategies for preventing or mitigating impacts to native biodiversity. The Haida Gwaii archipelago, located off the coast of British Columbia, Canada, is a significant nesting site for 1.5 million seabirds across 12 species, half of which are now threatened by brown...

Supplementary material: How should functional relationships be evaluated using phylogenetic comparative methods? A case study using metabolic rate and body temperature

Josef Uyeda, Nic Bone, Sean McHugh, Jonathan Rolland & Matthew Pennell
Phylogenetic comparative methods are often used to test functional relationships between traits. However, million-year macroevolutionary observational datasets cannot definitively prove causal links between traits --- correlation does not equal causation and experimental manipulation over such timescales is impossible. While this caveat is widely understood, it is far less appreciated that different phylogenetic approaches make different causal assumptions about the functional relationships of traits. In order to make meaningful inferences, it is critical that our statistical...

Genome-wide shifts in climate-related variation underpin responses to selective breeding in a widespread conifer

Ian MacLachlan, Tegan McDonald, Brandon Lind, Loren Rieseberg, Samuel Yeaman & Sally Aitken
Locally adapted temperate tree populations exhibit genetic trade-offs among climate-related traits that can be exacerbated by selective breeding, and are challenging to manage under climate change. To inform climatically adaptive forest management, we investigated the genetic architecture and impacts of selective breeding on four climate-related traits in 105 natural and 20 selectively bred lodgepole pine populations from western Canada. Growth, cold injury and growth initiation and growth cessation phenotypes were tested for associations with 18,600...

Integrating high-speed videos in capture-mark-recapture studies of insects

Rassim Khelifa
Capture-mark-recapture (CMR) studies have been used extensively in ecology and evolution. While it is feasible to apply CMR in some animals, it is considerably more challenging in small fast-moving species such as insects. In these groups, low recapture rates can bias estimates of demographic parameters, thereby, handicapping effective analysis and management of wild populations. Here we use high-speed videos (HSV) to capture two large dragonfly species, Anax junius and Rhionaeschna multicolor, that rarely land and,...

Human-induced reduction in mammalian movements impacts seed dispersal in the tropics

Marlee Tucker, Michela Busana, Mark Huijbregts & Adam Ford
Seed dispersal is a key process affecting the structure, composition and spatial dynamics of plant populations. Numerous plant species in the tropics rely upon animals to disperse their seeds. Humans have altered mammalian movements, which will likely affect seed dispersal distances (SDD). Altered SDD may have a range of consequences for plant communities including reduced seedling recruitment and plant biomass, seed trait homogenization, altered gene flow and a reduced capacity to respond to environmental changes....

Data from: Evidence for ephemeral ring species formation during the diversification history of Western Fence Lizards (Sceloporus occidentalis)

Nassima Bouzid, James Archie, Roger Anderson, Jared Grummer & Adam Leaché
Divergence is often ephemeral, and populations that diverge in response to regional topographic and climatic factors may not remain reproductively isolated when they come into secondary contact. We investigated the geographic structure and evolutionary history of population divergence within Sceloporus occidentalis (Western Fence Lizards), a habitat generalist with a broad distribution that spans the major biogeographic regions of Western North America. We used double digest RAD sequencing to infer population structure, phylogeny, and demography. Population...

Zostera marina microsatellite and environmental data

Erin Foster, Jane Watson, Matthew Lemay, Tim Tinker, James Estes, Rebecca Piercey, Lauren Henson, Carol Ritland, Allyson Miscampbell, Linda Nichol, Margot Hessing-Lewis, Anne Salomon & Chris Darimont
Microsatellite data for Zostera marina, sea otter occupancy information, and environmental data from the west coast of British Columbia, Canada.

Enabling conditions for an equitable and sustainable blue economy

Andrés M. Cisneros-Montemayor, Marcia Moreno-Baez, Gabriel Reygondeau, William W.L. Cheung, Katherine M. Crosman, Pedro C. Gonzalez-Espinosa, Vicky W.Y. Lam, Muhammed A. Oyinlola, Gerald G. Singh, Wilf Swartz, Yoshitaka Ota & Chong-Wei Zheng
The future of the global ocean economy is currently envisioned as an advancement towards a ‘Blue Economy’—socially equitable, environmentally sustainable, and economically viable ocean industries. However, there are current tensions between development discourses from perspectives of natural capital versus social equity and environmental justice. Here we show there are stark differences in Blue Economy outlooks when social conditions and governance capacity beyond resource availability are considered, and highlight limits to establishing multiple overlapping industries. The...

Methodological approach to generate reflection and reflective notes

Mario Brondani
The objective of this data note is twofold: 1) to illustrate the methodological approach used to generate guided reflections at undergraduate level aided by a patient-based vignette portraying an individual with a history of substance use and mental health disorders; 2) to provide a summary of the raw data set in the form brief educational reflections submitted anonymously by undergraduate dental and dental hygiene students. These reflections were used in our recent publication titled ‘The...

Morphologic and metabolic data of Philaenus spumarius froghoppers

Elisabeth Bergman, Emma Green & Philip Matthews
The xylem sap of vascular plants is an unlikely source of nutrition, being both nutrient poor and held under tensions (negative pressures) that can exceed 1 MPa. But some insects feed on xylem sap exclusively, extracting copious quantities using a muscular cibarial pump. However, neither the strength of the insect’s suction, nor the direct energetic cost of xylem ingestion, have ever been quantified. Philaenus spumarius froghoppers were used to address these gaps in our knowledge....

Participatory Mapping Reveals Sociocultural Drivers of Forest Fires in Protected Areas of the Post-Conflict Colombian Amazon

Charles Tebbutt, Tahia Devisscher, Laura Obando-Cabrera, Gustavo Adolfo Gutiérrez García, María Meza Elizalde, Dolors Armenteras & Imma Oliveras
1. Wildfires have increased in protected areas (PAs) of the Colombian Amazon following the 2016 peace agreement between the Government and the Revolutionary Armed Forced of Colombia (FARC – Spanish acronym). Recent study efforts to understand this issue suffer from data scarcity and limited consultation of local stakeholder perspectives on factors affecting wildfires. 2. This study uses a social-ecological systems framework to investigate local perceptions of factors driving and / or preventing wildfires in the...

Projected climate risk of aquatic food system benefits

Michelle Tigchelaar, William Cheung, Essam Mohammed, Michael Phillips, Hanna Payne, Elizabeth Selig, Colette Wabnitz, Muhammed Oyinlola, Thomas Frölicher, Jessica Gephart, Christopher Golden, Edward Allison, Abigail Bennett, Ling Cao, Jessica Fanzo, Benjamin Halpern, Fiorenza Micheli, Rosamond Naylor, Rashid Sumaila, Alessandro Tagliabue & Max Troell
Aquatic foods from marine and freshwater systems are critical to the nutrition, health, livelihoods, economies and culture of billions of people worldwide – but climate-related hazards may compromise their ability to provide these benefits. This analysis estimates national-level aquatic food system climate risk using a fuzzy logic modeling approach that connects climate hazards impacting marine and freshwater capture fisheries and aquaculture to their contributions to sustainable food system outcomes, and vulnerability to losing those contributions....

Changes in arthropod community but not plant quality benefit a specialist herbivore on plants under reduced water availability

Po-An Lin, Chia-Ming Liu, Jia-Ang Ou, Cheng-Han Sun, Wen-Po Chuang, Chuan-Kai Ho, Natsuko Kinoshita & Gary Felton
Plants growing under reduced water availability can affect insect herbivores differently, in some instances benefitting them. However, the forces mediating these positive impacts remain mostly unclear. To identify how water availability impacts plant quality and multitrophic interactions, we conducted manipulative field studies with two populations of the specialist herbivore Pieris rapae, and its host plant, Rorippa indica. We found that P. rapae larvae experienced higher survival on R. indica growing under low water availability compared...

Ongoing production of low-fitness hybrids limits range overlap between divergent cryptic species

Else Mikkelsen & Darren Irwin
Contact zones between recently-diverged taxa provide opportunities to examine the causes of reproductive isolation and the processes that determine whether two species can coexist over a broad region. The Pacific Wren (Troglodytes pacificus) and Winter Wren (Troglodytes hiemalis) are two morphologically similar songbirds that started diverging about 4 million years ago, older than most sister species pairs of temperate songbirds. The ranges of these species come into narrow contact in western Canada, where the two...

Exchange Rate Pass-Through, Currency of Invoicing and Market Share

Michael B. Devereux, Wei Dong & Ben Tomlin
This paper investigates the impact of market structure on the joint determination of exchange rate pass-through and currency of invoicing in international trade. A novel feature of the study is the focus on market share of firms on both sides of the market—that is, exporting firms and importing firms. A model of monopolistic competition with heterogeneous firms has the following set of predictions: a) exchange rate pass-through should be non-monotonic and U-shaped in the market...

Progressive neurochemical abnormalities in cognitive and motor subgroups of ALS: a prospective multicentre study

Daniel Ta, Abdullah Ishaque, Ojas Srivastava, Chris Hanstock, Peter Seres, Dean Eurich, Collin Luk, Hannah Briemberg, Richard Frayne, Angela Genge, Simon Graham, Lawrence Korngut, Lorne Zinman & Sanjay Kalra
Objective: To evaluate progressive cerebral degeneration in amyotrophic lateral sclerosis (ALS) by assessing alterations in N-acetylaspartate (NAA) ratios in the motor and prefrontal cortex within clinical subgroups of ALS. Methods: Seventy-six ALS patients and 59 healthy controls were enrolled a prospective, longitudinal, multicenter study in the Canadian ALS Neuroimaging Consortium (CALSNIC). Participants underwent serial clinical evaluations and MRS at baseline, 4 and 8 months using a harmonized protocol across 5 centers. NAA ratios were quantified...

Data for: Nectar-dwelling microbes of common tansy are attractive to its mosquito pollinator, Culex pipiens

Daniel Peach, C. Carroll, S. Meraj, S. Gomes, E. Galloway, A. Balcita, H. Coatsworth, N. Young, Y. Uriel, R. Gries, C. Lowenberger, M. Moore & G. Gries
There is widespread interkingdom signalling between insects and microbes. For example, microbes found in floral nectar may modify its nutritional composition and produce odorants that alter the floral odor bouquet which may attract insect pollinators. Mosquitoes consume nectar and can pollinate flowers. We identified microbes isolated from nectar of common tansy, Tanacetum vulgare , identified the microbial odorants, and tested their effect on attracting the common house mosquito, Culex pipiens . Results We collected 19...

Adherence to wearing facemasks during the COVID-19 pandemic

Steven Taylor & Gordon Asmundson
This study reports a comprehensive empirical investigation of the nature and correlates of anti-mask attitudes during the COVID-19 pandemic. Accumulating evidence underscores the importance of facemasks, as worn by the general public, in limiting the spread of infection. Accordingly, mask wearing has become increasingly mandatory in public places such as stores and on public transit. Although the public has been generally adherent to mask wearing, a small but vocal group of individuals refuse to wear...

Dark Extinction: Bird dataset

Quentin Cronk
The extinction of species before they are discovered and named (dark extinction) is widely inferred as a significant part of species loss in the early modern period (1500-1800). The discovery of oceanic islands and other pristine habitats by European navigators and the consequent introduction of rodents and herbivores started a process of anthropogenic extinction. Much ecosystem change happened before systematic scientific recording, so has led to dark extinction. Methods are available to robustly estimate dark...

Adaptation across geographic ranges is consistent with strong selection in marginal climates and legacies of range expansion

Megan Bontrager, Takuji Usui, Julie Lee-Yaw, Daniel Anstett, Haley Branch, Anna Hargreaves, Christopher Muir & Amy Angert
Every species experiences limits to its geographic distribution. Some evolutionary models predict that populations at range edges are less well-adapted to their local environments due to drift, expansion load, or swamping gene flow from the range interior. Alternatively, populations near range edges might be uniquely adapted to marginal environments. In this study, we use a database of transplant studies that quantify performance at broad geographic scales to test how local adaptation, site quality, and population...

Clinician-researcher’s perspectives on clinical research during the COVID-19 pandemic

Sarah Silverberg, Lisa Puchalski-Ritchie, Nina Gobat, Alistair Nichol & Srinavas Murthy
Objectives: The outcome of well-performed clinical research is essential for evidence-based patient management during pandemics. However, conducting clinical research amidst a pandemic requires researchers to balance clinical and research demands. We seek to understand the values, experiences, and beliefs of physicians working at the onset of the COVID-19 pandemic in order to inform clinical research planning. We aim to understand whether pandemic settings affect physician comfort with research practices, and how physician experiences shape their...

Aquatic biodiversity enhances multiple nutritional benefits to humans

Joey R. Bernhardt & Mary I. O'Connor
Humanity depends on biodiversity for health, well-being and a stable environment. As biodiversity change accelerates, we are still discovering the full range of consequences for human health and well-being. Here, we test the hypothesis -- derived from biodiversity - ecosystem functioning theory -- that species richness and ecological functional diversity allow seafood diets to fulfill multiple nutritional requirements, a condition necessary for human health. We analyzed a newly synthesized dataset of 7245 observations of nutrient...

How latex film formation and adhesion at the nanoscale correlate to performance of pressure sensitive adhesives with cellulose nanocrystals

Elina Niinivaara, Alexandra Ouzas, Carole Fraschini, Richard M. Berry, Marc A. Dubé & Emily D. Cranston
Emulsion polymerized latex-based pressure sensitive adhesives (PSAs) are more environmentally benign because they are synthesized in water but often underperform compared to their solution polymerized counterparts. Studies have shown a simultaneous improvement in the tack, and peel and shear strength of various acrylic PSAs upon the addition of cellulose nanocrystals (CNCs). This work uses atomic force microscopy (AFM) to examine the role of CNCs in (i) the coalescence of hydrophobic 2‐ethyl hexyl acrylate/n‐butyl acrylate/methyl methacrylate...

Predators override rainfall effects on tropical food webs

Fabiola Ospina, Diane Srivastava, Angélica González, Jed Sparks & Emilio Realpe
Predators alter ecological communities by inducing changes in prey abundance and phenotypes, including elemental and isotopic composition. Climatic factors are known to often moderate predator effects on prey abundance, but few studies consider the combined effects of climate and predators on prey phenotype. We examined how altered precipitation moderates the effects of predators on the abundance and the chemical composition of prey, as well as the indirect effects on the basal resource: leaf litter coated...

Data and code for: Infected juvenile salmon can experience increased predation during freshwater migration

Nathan Furey, Arthur Bass, Kristi Miller, Shaorong Li, Andrew Lotto, Stephen Healy, S Matthew Drenner & Scott Hinch
This submission constitutes the data and code for the manuscript titled "Infected juvenile salmon can experience increased predation during freshwater migration" submitted by Furey et al. It includes R code for conducting analyses, a custom-built R package (authored by Bass) for conducting analyses, data files, R objects for predicting fish lengths, and sample metadata on juvenile sockeye salmon smolts that were sampled. Please see the file "DryadData_titles_and_captions_RSOS_Furey_et_al" for list of file names included.

Registration Year

  • 2021
    75

Resource Types

  • Dataset
    71
  • Text
    3
  • Journal Article
    1

Affiliations

  • University of British Columbia
    75
  • Fisheries and Oceans Canada
    6
  • University of Toronto
    5
  • University of Washington
    4
  • University of California, Santa Barbara
    4
  • University of Alberta
    3
  • University of Minnesota
    3
  • Dalhousie University
    3
  • McGill University
    3
  • Simon Fraser University
    3