13 Works

Data from: Saprotrophic and ectomycorrhizal fungal sporocarp stoichiometry (C : N : P) across temperate rainforests as evidence of shared nutrient constraints among symbionts

J. Marty Kranabetter, Rachael Harman-Denhoed & Barbara J. Hawkins
Summary: Quantifying nutritional dynamics of free-living saprotrophs and symbiotic ectomycorrhizal fungi (EMF) in the field is challenging, but the stoichiometry of fruiting bodies (sporocarps) may be an effective methodology for this purpose. Carbon (C), nitrogen (N), and phosphorus (P) concentrations of soils, foliage and 146 sporocarp collections were analyzed from 14 Pseudotsuga menziesii var. menziesii stands across a podzolization gradient on Vancouver Island (Canada). N and P concentrations were considerably higher in saprotrophic fungi. Fungal...

Data from: Stoichiometric traits of stickleback: effects of genetic background, rearing environment, and ontogeny

Miguel Costa Leal, Rebecca J. Best, Dan Durston, Rana W. El-Sabaawi & Blake Matthews
Phenotypes can both evolve in response to, and affect, ecosystem change, but few examples of diverging ecosystem-effect traits have been investigated. Bony armor traits of fish are good candidates for this because they evolve rapidly in some freshwa- ter fish populations, and bone is phosphorus rich and likely to affect nutrient recycling in aquatic ecosystems. Here, we explore how ontogeny, rearing environment, and bone allocation among body parts affect the stoichiometric phenotype (i.e., stoichio- metric...

Data from: Salmonid species diversity predicts salmon consumption by terrestrial wildlife

Christina N. Service, Andrew W. Bateman, Megan S. Adams, Kyle A. Artelle, Thomas E. Reimchen, Paul C. Paquet & Chris T. Darimont
1. Resource waves - spatial variation in resource phenology that extends feeding opportunities for mobile consumers - can affect the behaviour and productivity of recipient populations. Interspecific diversity among Pacific salmon species (Oncorhynchus spp.) creates staggered spawning events across space and time, thereby prolonging availability to terrestrial wildlife. 2. We aim to understand how such variation might influence consumption by terrestrial predators compared with resource abundance and intra- and inter- specific competition. 3. Using stable...

Data from: Population genomic analyses reveal a highly differentiated and endangered genetic cluster of northern goshawks (Accipiter gentilis laingi) in Haida Gwaii

Armando Geraldes, Kenneth K. Askelson, Ellen Nikelski, Frank I. Doyle, William L. Harrower, Kevin Winker & Darren E. Irwin
Accurate knowledge of geographic ranges and genetic relationships among populations is important when managing a species or population of conservation concern. Along the western coast of Canada, a subspecies of the northern goshawk (Accipiter gentilis laingi) is legally designated as Threatened. The range and distinctness of this form, in comparison to the broadly distributed North American subspecies (Accipiter gentilis atricapillus), is unclear. Given this morphological uncertainty, we analyzed genomic relationships in thousands of single nucleotide...

Data from: Towards the validation of endogenous steroid testing in wildlife hair

Lee Koren, Heather Bryan, Devorah Matas, Simon Tinman, Asa Fahlman, Douglas Whiteside, Judit Smits & Katherine Wynne-Edwards
1. Hair is emerging as a popular tool to examine steroid hormone levels in wild mammals. The reliability of this approach, however, depends on an understanding of steroid hormone incorporation into hair as well as appropriate validations. 2. We reviewed studies that have examined steroid hormones in wildlife hair with the goal of summarizing the analytical, physiological, and biological evidence that this approach is meaningful. Accordingly, we differentiated among validations aimed at evaluating the reliability...

Data from: A novel approach to wildlife transcriptomics provides evidence of disease-mediated differential expression and changes to the microbiome of amphibian populations

Lewis J. Campbell, Stewart A. Hammond, Stephen J. Price, Manmohan D. Sharma, Trenton W.J. Garner, Inanc Birol, Caren C. Helbing, Lena Wilfert, Amber G.F. Griffiths & Trenton W. J. Garner
Ranaviruses are responsible for a lethal, emerging infectious disease in amphibians and threaten their populations throughout the world. Despite this, little is known about how amphibian populations respond to ranaviral infection. In the United Kingdom, ranaviruses impact the common frog (Rana temporaria). Extensive public engagement in the study of ranaviruses in the UK has led to the formation of a unique system of field sites containing frog populations of known ranaviral disease history. Within this...

Data from: Adaptation in temporally variable environments: stickleback armor in periodically breaching bar-built estuaries

Antoine Paccard, Ben A. Wasserman, Dieta Hanson, Louis Astorg, Dan Durston, Sara Kurland, Travis M. Apgar, Rana W. El-Sabaawi, Eric P. Palkovacs, Andrew P. Hendry, Rowan D.H. Barrett & Rowan D. H. Barrett
The evolutionary consequences of temporal variation in selection remain hotly debated. We explored these consequences by studying threespine stickleback in a set of bar-built estuaries along the central California coast. In most years, heavy rains induce water flow strong enough to break through isolating sand bars, connecting streams to the ocean. New sand bars typically re-form within a few weeks or months, thereby re-isolating populations within the estuaries. These breaching events cause severe and often...

Data from: Individual variation, population-specific behaviours, and stochastic processes shape marine migration phenologies

Cameron Freshwater, Marc Trudel, Terry D. Beacham, Stéphane Gauthier, Stewart C. Johnson, Chrys-Ellen Neville & Francis Juanes
1. The phenology of long distance migrations can influence individual fitness, moderate population dynamics, and regulate the availability of ecosystem services to other trophic levels. Phenology varies within and among populations, and can be influenced by conditions individuals experience both prior to departure and encounter en route. 2. Assessing how intrinsic and extrinsic factors (e.g. individual physical condition vs. environmental conditions) interact to influence variation in migratory phenologies across ecological scales is often limited due...

Data from: Understory succession after burial by tephra from Mount St. Helens

Dylan G. Fischer, Joseph A. Antos, Abir Biswas & Donald B. Zobel
1. Successional change following disturbance is a fundamental ecological process that remains central to understanding patterns in plant ecology. Although succession has been studied for well over a century, understanding of the patterns and processes of change is still inadequate, partly because of the dearth of long-term studies. 2. Here, we use, as a model system, a volcanic disturbance that is widespread and of global relevance. We examine succession in old-growth conifer forest understories following...

Data from: Drivers of temporal beta diversity of a benthic community in a seasonally hypoxic ocean fjord

Jackson W.F. Chu, Curtis Curkan, Verena Tunnicliffe & Jackson W. F. Chu
Global expansion of oxygen deficient (hypoxia) waters will have detrimental effects on marine life in the Northeast Pacific Ocean (NEP) where some of the largest proportional losses in aerobic habitat are predicted to occur. However, few studies have accounted for the high environmental variability in this region while including natural community-assembly dynamics. Here, we present results from a 14-month deployment of a benthic camera platform tethered to the VENUS cabled observatory in the seasonally hypoxic...

Data from: Estimating density for species conservation: comparing camera trap spatial count models to genetic spatial capture-recapture models

Joanna M. Burgar, Frances E. C. Stewart, John P. Volpe, Jason T. Fisher, A. Cole Burton & Frances E.C. Stewart
Density estimation is integral to the effective conservation and management of wildlife. Camera traps in conjunction with spatial capture-recapture (SCR) models have been used to accurately and precisely estimate densities of “marked” wildlife populations comprising identifiable individuals. The emergence of spatial count (SC) models holds promise for cost-effective density estimation of “unmarked” wildlife populations when individuals are not identifiable. We evaluated model agreement, precision, and survey costs, between i) a fully marked approach using SCR...

Data from: Decay patterns of invasive plants and plastic trash in urban streams

Kimberly T. M. Kennedy & Rana W. El-Sabaawi
Urban streams are impacted by invasion of exotic riparian plants and the accumulation of plastic trash, which alter in-stream litter subsidies, and cause changes that cascade up the aquatic food web. The impacts of these factors on urban streams is poorly understood. We compared decay rates and invertebrate colonizers of 5 litter pack types in 4 urban streams in Victoria, British Columbia, Canada: Native Red alder (Alnus rubra) and Sitka willow (Salix sitchensis), invasive English...

Data from: Genetics and genomics of an unusual selfish sex ratio distortion in an insect

Phineas T. Hamilton, Christina N. Hodson, Caitlin I. Curtis & Steve J. Perlman
Diverse selfish genetic elements have evolved the ability to manipulate reproduction to increase their transmission, and this can result in highly distorted sex ratios. Indeed, one of the major explanations for why sex determination systems are so dynamic is because they are shaped by ongoing coevolutionary arms races between sex ratio distorting elements and the rest of the genome. Here, we use genetic crosses and genome analysis to describe an unusual sex ratio distortion with...

Registration Year

  • 2018
    13

Resource Types

  • Dataset
    13

Affiliations

  • University of Victoria
    13
  • University of British Columbia
    2
  • Raincoast Conservation Foundation
    2
  • University of Vic
    1
  • Swiss Federal Institute of Aquatic Science and Technology
    1
  • Oregon State University
    1
  • University of Alberta
    1
  • University of Edinburgh
    1
  • McGill University
    1
  • Simon Fraser University
    1