17 Works

Increased typhoon activity in the Pacific deep tropics driven by Little Ice Age circulation changes

James Bramante, Murray Ford, Paul Kench, Andrew D. Ashton, Michael Toomey, Richard M. Sullivan, Kristopher B. Karnauskas, Caroline C. Ummenhofer & Jeffrey P. Donnelly
The instrumental record reveals that tropical cyclone activity is sensitive to oceanic and atmospheric variability on inter-annual and decadal scales. However, our understanding of climate’s influence on tropical cyclone behavior is restricted by the short historical record and sparse prehistorical reconstructions, particularly in the western North Pacific where coastal communities suffer loss of life and livelihood from typhoons annually. Here we reconstruct three millennia of deep tropical North Pacific cyclogenesis and compare with other records...

Genetic variation at the species and population levels in the Rocky Mountain ridged mussel (Gonidea angulata) – Supplementary Material

James Walton, Karen E. Mock, Steven Brownlee, Jon H. Mageroy, Greg Wilson & Ian Walker
Freshwater mussels in western North America are threatened by water diversions, climate change, loss of required host fish, and other factors, and have experienced marked decline in the past several decades. All four of the primary lineages (potentially species) of freshwater mussels in the western U.S. and Canada are widespread and have somewhat generalist host fish requirements. Of these lineages, perhaps the most poorly understood and of greatest conservation concern is Gonidea angulata (Rocky Mountain...

Data from: Crop production in the USA is frequently limited by a lack of pollinators

James Reilly, Derek Artz, David Biddinger, Kyle Bobiwash, Natalie Boyle, Claire Brittain, Julia Brokaw, Josh Campbell, Jaret Daniels, Elizabeth Elle, Jamie Ellis, Shelby Fleischer, Jason Gibbs, Robert Gillespie, Knute Gundersen, Larry Gut, George Hoffman, Neelendra Joshi, Ola Lundin, Keith Mason, Carley McGrady, Steve Peterson, Theresa Pitts-Singer, Sujaya Rao, Nikki Rothwell … & Rachael Winfree
Most of the world’s crops depend on pollinators, so declines in both managed and wild bees raise concerns about food security. However, the degree to which insect pollination is actually limiting current crop production is poorly understood, as is the role of wild species (as opposed to managed honey bees) in pollinating crops, particularly in intensive production areas. We established a nation-wide study to assess the extent of pollinator limitation in seven crops at 131...

Is Donald Trump a Trendsetter for Canadians? The Effect of Trump and National Identity on Support for Immigration

Steven Nuss & Mark Pickup
Data includes demographic variables, as well as an imbedded experiment to see whether Trump can influence Canadians’ support for immigrants and if priming Canadian national identity using normative associations about immigration and multiculturalism reinforces or weakens support for immigrants. Data also includes variables to see if Canadians view Trump as trendsetter, and their current attitudes on desired levels of immigration. Full codebook is located in the appendix of Nuss (2020) "Is Donald Trump a Trendsetter...

Ultrasound-derived changes in thickness of human ankle plantar flexor muscles during walking and running are not homogeneous along the muscle mid-belly region

Emma Hodson-Tole & Adrian Lai
Skeletal muscle thickness is a valuable indicator of several aspects of a muscle’s functional capabilities. We used computational analysis of ultrasound images, recorded from 10 humans walking and running at a range of speeds (0.7 – 5.0 m s-1), to quantify interactions in thickness change between three ankle plantar flexor muscles (soleus, medial and lateral gastrocnemius) and quantify thickness changes at multiple muscle sites within each image. Statistical analysis of thickness change as a function...

Barn Swallow (Hirundo rustica) fledglings use crop habitat more frequently in relation to its availability than pasture and other habitat types

Chloe Boynton
Populations of birds that forage on aerial insects have been declining across North America for several decades, but the main causes of and reasons for geographical variation in these declines remains unclear. We examined the habitat use and survival of post-fledging Barn Swallows (Hirundo rustica), near Vancouver, BC, Canada using VHF radio telemetry. We predicted that fledgling Barn Swallows hatched in higher quality natal habitat (pasture) would fledge at higher quality, stay closest to the...

Custom MALDI-TOF Mass Spectrometric Database for identification of environmental Burkholderia and related genera

Roger Linington
Success of microbial natural products discovery programs is dependent on quick and concise discrimination between isolates from diverse environments. However, laboratory isolation and identification of priority genera using current 16S rRNA PCR-based methods is both challenging and time-consuming. In clinical settings, MALDI-TOF MS is used to rapidly identify unknown bacterial pathogens, yet this has not been widely adapted for isolation of environmental bacteria. To expedite isolation of Gram-negative proteobacterial order Burkholderiales, we have created a...

rhinoceros auklet microsatellite data

Theresa Burg, Marie Prill, Katharine Studholme, Alice Domalik, Strahan Tucker, Catherine Jardine, Mark Maftei, Kenneth Wright, Jesse Beck, Russell Bradley, Ryan Carle, Thomas Good, Scott Hatch, Peter Hodum, Motohiro Ito, Scott Pearson, Nora Rojek, Leslie Slater, Yutaka Watanuki, Alexis Will, Aidan Bindoff, Glenn Crossin, Mark Drever & Mark Hipfner
We tested the hypothesis that segregation in wintering areas promotes population differentiation in a sentinel North Pacific seabird, the rhinoceros auklet (Cerorhinca monocerata). We collected tissue samples for genetic analyses on five breeding colonies in the western Pacific Ocean (Japan) and 13 in the eastern Pacific Ocean (California to Alaska), and deployed light-level geologgers on 12 eastern Pacific colonies to delineate wintering areas. Loggers were deployed previously on one colony in Japan. There was strong...

Glacial History and Landform Genesis in the Lac de Gras Area, Northwest Territories

Anna Haiblen
The Quaternary geology of the Lac de Gras area was studied by 1:20 000 surficial geology mapping of 770 km2 and investigating the genesis of enigmatic landforms. Three distinct flow directions of the Laurentide Ice Sheet are recorded: flow to the southwest, then west, and finally to the west northwest. Digital mapping with high-resolution orthoimagery and a 30 cm lidar DEM provides insight into the deglacial history. ‘Subglacial meltwater corridors’ are prominent in the area....

Habitats and fish communities at mesophotic depths in the Mexican Pacific

Jordan A. Hollarsmith, Georgina Ramirez-Ortiz, Tallulah Winquist, Manuel Velasco-Lozano, Katherine DuBois, Hector Bonilla, Kyle Neumann & Ted Grosholz
Aim: Mesophotic ecosystems, found at the limit of light penetration in the ocean, are rich in biodiversity and harbor unique ecological communities. However, they remain among the least studied habitat zones on earth due to high costs and technological limitations. Here, we characterize mesophotic communities in two marine reserves across a range of habitat types, depths, and temperatures using submersible technologies, with the goal of understanding the processes that structure these communities across biogeographic regions....

Data from: Modification of reproductive schedule in response to pathogen exposure in a wild insect: support for the terminal investment hypothesis

Jenny Cory, Kari Zurowski, Alida Janmaat & Todd Kabaluk
Trade-offs in the time and energy allocated to different functions, such as reproductive activities, can be driven by alterations in condition which reduce resources, often in response to extrinsic factors such as pathogens or parasites. When individuals are challenged by a pathogen they may either reduce reproduction as a cost of increasing defence mechanisms, or alternatively, modify reproductive activities so as to increase fecundity thereby minimizing the fitness costs of earlier death, a behaviour consistent...

Data from: Convergent evolution of niche structure in Northeast Pacific kelp forests

Samuel Starko, Kyle Demes, Christopher Neufeld & Patrick Martone
Much of the morphological and ecological diversity present on earth is believed to have arisen through the process of adaptive radiation. Yet, this is seemingly at odds with substantial evidence that niches tend to be similar among closely related species (i.e., niche conservatism). Identifying the relative importance of these opposing processes in driving niche evolution under different circumstances is therefore essential to our understanding of the interaction between ecological and evolutionary phenomena. In this study,...

Data from: Riparian habitat restoration increases the availability and occupancy of Yellow-breasted Chat territories but brood parasitism is the primary influence on reproductive performance

Timothy Robert Forrester, David J. Green, René McKibbin, A. Michael Bezener & Christine A. Bishop
Implementation and evaluation of conservation efforts requires an understanding of the habitat selection and reproductive success of endangered populations. As populations recover, established territory holders may force new arrivals into lower-quality habitat, which can reduce reproductive success, especially in disturbed landscapes where suitable habitat is scarce. The endangered Western Yellow-breasted Chat (Icteria virens auricollis) population in the fragmented riparian zone of the Okanagan Valley, British Columbia, Canada, has rapidly increased in response to habitat restoration....

Earlier and slower or later and faster: Spring migration pace linked to departure time in a Neotropical migrant songbird

Ana M. González-Prieto, Nicholas J. Bayly & Keith A. Hobson
1. Migratory birds travel vast distances and the timing of migratory flights can affect survival and the ability to reproduce. For Neotropical migrant songbirds, early spring departure from wintering sites, early arrival to the breeding grounds and higher reproductive success have been related to the use of suitable habitats and environmental conditions during the non-breeding season. However, how migratory strategies are shaped by winter habitat choice is largely unknown due to the general inability to...

Portfolio simplification arising from a century of change in population diversity and artificial production

Michael Price
1. Population and life-history diversity can buffer species from environmental variability and contribute to long-term stability through differing responses to varying conditions akin to the stabilizing effect of asset diversity on financial portfolios. While it is well known that many salmon populations have declined in abundance over the last century, we understand less about how different dimensions of diversity may have shifted. Specifically, how has diminished wild abundance and increased artificial production (i.e., enhancement) changed...

Multimodal and multifunctional signaling? – web reduction courtship behavior in a North American population of the false black widow spider

Andreas Fischer, Jamie-Lynne Varney, Gerhard Gries, Adam Blake, Stephen Takács & Xiang Goh
Males of widow spiders courting on the web of females engage in web reduction behavior which entails excising a section of the web, bundling it up, and wrapping it with their silk. Males of the false black widow spider, Steatoda grossa , in European populations also produce stridulatory courtship sound which has not yet been studied in their invaded North American range. Working with a North American population of S. grossa , we tested the...

Spectral data and R modeling code from: Polarized light sensitivity in Pieris rapae is dependent on both color and intensity

Adam Blake, Gina S. Hahn, Hayley Grey, Shelby A. Kwok, Deby McIntosh & Gerhard Gries
This dataset provides supplementary spectral data and the R code underlying the spectral sensitivy moding of female Pieris rapae photoreceptors used in the manuscript "Polarized light sensitivity in Pieris rapae is dependent on both color and intensity".

Registration Year

  • 2020
    17

Resource Types

  • Dataset
    17

Affiliations

  • Simon Fraser University
    17
  • University of British Columbia
    2
  • University of California, Davis
    2
  • University of Montana
    1
  • SELVA
    1
  • Utah State University
    1
  • En'owkin Centre
    1
  • Oregon State University
    1
  • Government of British Columbia
    1
  • Texas A&M University – Central Texas
    1