6 Works

Assisted colonization of a regionally native predator impacts benthic invertebrates in fishless mountain lakes

Allison L. K. Banting, Mark K. Taylor, Rolf D. Vinebrooke, Chris M. Carli, Mark S. Poesch & Rolf D. Vinebrooke
The intentional introduction of native cold-water trout into high-elevation fishless lakes has been considered a tool to build resilience to climate change (i.e. assisted colonization); however, ecological impacts on recipient communities are understudied. The purpose of this study was to inform native cold-water trout recovery managers by assessing potential consequences of translocating a regionally native trout (westslope cutthroat trout; Oncorhynchus clarkii) into fishless mountain lakes. This study compared littoral benthic invertebrate richness, diversity, community structure,...

Microsatellite data for Bull Trout

Steven Vamosi & Emma Carroll
Freshwater ecosystems are negatively impacted by a variety of anthropogenic stressors, with concomitant elevated rates of population decline for freshwater aquatic vertebrates. Because reductions in population size and extent can negatively impact genetic diversity and gene flow, which are vital for sustained local adaptation, it is important to measure these characteristics in threatened species that may yet be rescued from extinction. Across its native range, Bull Trout (Salvelinus confluentus) extent and abundance are in decline...

Testing the precision and sensitivity of density estimates obtained with a camera-trap method revealed limitations and opportunities

Martin-Hugues St-Laurent, Pascal Pettigrew & Daniel Sigouin
The use of camera traps in ecology helps affordably address questions about the distribution and density of cryptic and mobile species. The Random encounter model (REM) is a camera-trap method that has been developed to estimate population densities using unmarked individuals. However, few studies have evaluated its reliability in the field, especially considering that this method relies on parameters obtained from collared animals (i.e. average speed, in km/h), which can be difficult to acquire at...

Metabolic depression in sea urchin barrens associated with food deprivation

Nathan Spindel, Lynn Lee & Daniel Okamoto
The proliferation of sea urchins can decimate macroalgal forests in coastal ecosystems, leading to persistent barren seascapes. While kelp forests are among the most productive ecosystems on the planet, productivity in these urchin barrens is dramatically reduced. Moreover, urchins inhabiting these food-depauperate barrens face starvation and many survive in these barrens for years or decades. Urchins in barrens can persist by eating food subsidies from drift algae, pelagic salps, tubeworms, as well as encrusting and...

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...

RADseq data for Atlantic Halibut in the Northwest Atlantic

Tony Kess, Anthony Einfeldt, Brendan Wringe, Sarah Lehnert, Kara Layton, Meghan McBride, Dominique Robert, Jonathan Fisher, Arnault Le Bris, Cornelia Den Heyer, Nancy Shackell, Daniel Ruzzante, Paul Bentzen & Ian Bradbury
Characterizing the nature of genetic differentiation among individuals and populations and its distribution across the genome is increasingly important to inform both conservation and management of exploited species. Atlantic Halibut (Hippoglossus hippoglossus) is an ecologically and commercially important fish species, yet knowledge of population structure and genomic diversity in this species remains lacking. Here, we use restriction-site associated DNA sequencing and a chromosome-level genome assembly to identify over 86,000 single nucleotide polymorphisms mapped to 24...

Registration Year

  • 2021
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  • Parks Canada
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  • Université du Québec à Rimouski
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  • Alberta Hospital Edmonton
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