Wetlands Knowledge Search Results
Resource
Authors
Nick Salafsky
Robyn Irvine
Judy Boshoven
Jaclyn Lucas
Kent Prior
Jean-François Bisaillon
Becky Graham
Paul Harper
André Laurin
Amanda Lavers
Lalenia Neufeld
Richard Margoluis
Resource Date:
October
2021
There is currently a great deal of work being undertaken to collect, analyze, and synthesize available evidence about the effectiveness of conservation strategies. But substantial challenges still...
Resource
Authors
Kristin Denryter
Rachel Cook
John Cook
Katherine Parker
Resource Date:
January
2022
We quantified rates of intake of digestible protein and digestible energy by tame caribou foraging in temporary enclosures in the predominant plant communities of northeastern British Columbia, Canada, during summer–autumn and compared intake rates to daily requirements for protein and energy during lactation. Our results,coupled with recent measurements of body fat of wild caribou innortheastern British Columbia, refute the hypothesis that thenutritional environment available to caribou during summer innortheastern British Columbia is adequate to fully support nutri-tional demands of lactating caribou, which has implications toproductivity of caribou populations, recovery, and conservation.
Resource
Authors
Steve Wilson
John Wilmshurst
Helicopter- and snowcat-supported backcountry skiing is a unique industry that is widespread throughout southern mountain caribou habitat in British Columbia (BC). We analyzed records of helicopter...
Resource
Authors
Christine Robichaud
Kyle Knopff
We conclude that a number of actions to offset impacts of development and achieve no net loss or net positive impact for caribou are theoretically feasible (i.e., if implemented they should work), including habitat restoration and manipulations of the large mammal predator-prey system. However, implementation challenges are substantial and include a lack of mechanisms for setting aside some resources for long periods of time, public opposition to predator control, and uncertainty associated with loss-gain calculations.
Resource
Authors
Justina Ray
Deborah Cichowski
Martin-Hugues St-Laurent
Chris Johnson
Stephen Petersen
Ian Thompson
Based on declines, future developments and current recovery effects, we offer the following recommendations: 1) where recovery actions are necessary, commit to simultaneously reducing human intrusion into caribou ranges, re-storing habitat over the long term, and conducting short-term predator control, 2) carefully consider COSEWIC’s new DU structure for management and recovery actions, especially regarding translocations, 3) carry out regular surveys to monitor the condition of Northern Mountain caribou subpopulations and immediately implement preventative measures where necessary, and 4) undertake a proactive, planned approach coordinated across jurisdictions to conserve landscape processes important to caribou conservation
Resource
Authors
Richard Huang
Quinn Webber
Michel Laforge
Alec Robitaille
Maegwin Bonar
Juliana Balluffi-Fry
Sana Zabihi-Seissan
Eric Vander Wal
Resource Date:
February
2021
The interplay of predator encounters and antipredator responses is an integral part of understanding predator–prey interactions and spatial co-occurrence and avoidance can elucidate these interactions...
Resource
Authors
Rodney Boertje
Craig Gardner
Martha Ellis
Torsten Bentzen
Jeffrey Gross
Resource Date:
January
2017
A 2017 academic paper on the Fortymile herd focusing on wolf predation and the impact of overgrazing on herd size. The paper counters earlier opinions that wolf control (lethal and non-lethal) had a...
Resource
Authors
Greniqueca Mitchell
Paul Wilson
Micheline Manseau
Bridgett Redquest
Brent Patterson
Linda Rutledge
Woodland caribou ( Rangifer tarandus caribou) are threatened in Canada because of the drastic decline in population size caused primarily by human-induced landscape changes that decrease habitat and...
Resource
Authors
John Boulanger
Jan Adamczewski
Tracy Davison
We analyzed 20 data sets from post-calving surveys in the NWT and NU carried out between 2000 and 2015 using the Rivest estimator. We provide a set of working recommendations to optimize field sampling to ensure reliable estimates of herd size using post-calving methods.
Resource
Authors
Melanie Dickie
Geoff Sherman
Glenn Sutherland
Robert McNay
Michael Cody
Resource Date:
September
2022
In the paper 'Evaluating the impact of caribou habitat restoration on predator and prey movement', the authors evaluated movement responses of wolves, black bears, caribou, and moose on seismic lines...
Resource
Chronic wasting disease (CWD) is a fatal neurodegenerative prion disease of cervid species including deer, elk, moose and reindeer. The disease has shown both geographic and species expansion since...
Resource
Authors
Deborah Jenkins
Nicola Lecomte
James Schaefer
Steffen Olsen
Didier Swingedouw
Steeve Côté
Loıc Pellissier
Glenn Yannic
Global warming threatens to reduce population connectivity for terrestrial wildlife through significant and rapid changes to sea ice. Using genetic fingerprinting, we contrasted extant connectivity in...
Resource
Authors
Orphé Bichet
Angélique Dupuch
Christian Hébert
Hélène Le Borgne
Daniel Fortin
Resource Date:
February
2016
With the intensification of human activities, preserving animal populations is a contemporary challenge of critical importance. In this context, the umbrella species concept is appealing because...
Resource
Authors
Steve Wilson
Wendy Crosina
Elston Dzus
Dave Hervieux
Philip McLoughlin
Laura Trout
Thomas Nudds
Resource Date:
November
2022
Delineating relevant local populations of widely distributed species is a common challenge in conservation ecology. Caribou and reindeer ( Rangifer tarandus) are in general decline throughout their...
Resource
Authors
Quinn Webber
Jack Hendrix
Alec Robitaille
Eric Vanderwal
During fieldwork on 30 May 2017, we observed an unmarked adult male caribou swim between two smaller islands, a distance of 470 m, which took approximately 9 minutes. Given that swimming is...
Resource
Authors
Jessica Theoret
Maria Cavedon
Troy Hegel
Dave Hervieux
Helen Schwantje
Robin Steenweg
Megan Watters
Marco Musiani
We aimed at assessing seasonal movement behaviours, including migratory, resident, dispersing, and nomadic, for caribou belonging to the Barren-ground and Woodland subspecies and ecotypes. Our unexpected findings of marked seasonal movement plasticity in caribou indicate that this phenomenon should be better studied to understand the resilience of this endangered species to habitat and climatic changes. Our results that a substantial proportion of individuals engaged in seasonal migration in all studied ecotypes indicate that caribou conservation plans should account for critical habitat in both summer and winter ranges.
Resource
Authors
Madeleine McGreer
Erin Mallon
Lucas Vander Vennen
Philip Wiebe
James Baker
Glen Brown
Tal Avgar
Jevon Hagens
Andrew Kittle
Anna Mosser
Garrett Street
Doug Reid
Arthur Rodgers
Jennifer Shuter
Ian Thompson
Merritt Turetsky
Steven Newmaster
Brent Patterson
John Fryxell
Resource Date:
December
2015
The relationship between selection at coarse and fine spatiotemporal spatial scales is still poorly understood. Some authors claim that, to accommodate different needs at different scales, individuals...
Resource
Authors
Steven Wilson
Glenn Sutherland
Nicholas Larter
Allicia Kelly
Ashley McLaren
James Hodson
Troy Hegel
Robin Steenweg
Dave Hervieux
Thomas Nudds
Understanding spatial distributions of organisms and the consequences for conservation policy and management decisions remain important challenges. We describe a method for grouping caribou into plausible candidate Local Population Units that may better approximate geographic closure than the existing LPUs.
Resource
Authors
Fabien St-Pierre
Pierre Drapeau
Martin-Hughes St-Laurent
Resource Date:
February
2022
By showing which forest roads are more used by caribou predators (wolves and bears) and its apparent competitor (moose), our study highlights the importance of considering both road-scale characteristics and the landscape context in which roads are built to prioritize the most detrimental roads to caribou conservation and guide efficient restoration efforts of its habitat.
Resource
Authors
Owen Slater
Amber Backwell
Rachel Cook
John Cook
Long-distance transport of caribou ( Rangifer tarandus) can result in morbidities and mortalities. This case report describes the use of a long-acting tranquilizer, zuclopenthixol acetate (ZA) and...