Article
Biodiversity Conservation
Olga A. Loginova, Sofya B. Rozenfeld, Taras P. Sipko, Ivan A. Mizin, Danila V. Panchenko, Kasim A. Laishev, Mikhail G. Bondar, Leonid A. Kolpashchikov, Aleksandr R. Gruzdev, Pavel S. Kulemeev, Dennis I. Litovka, Mariia N. Semerikova, Viktor N. Mamontov, Evgeniy G. Mamaev, Sergei E. Spiridonov
Summary: In this study, fecal samples from wild and semiwild reindeer, muskoxen, and snow sheep in the Russian Arctic were collected and analyzed. New helminth species were identified, and the role of these wild Arctic ruminants as vectors for rotifers was investigated.
Article
Virology
Carlos Sacristan, Knut Madslien, Irene Sacristan, Siv Klevar, Carlos G. das Neves
Summary: Recent research has found that hepatitis E virus (HEV) is circulating in wild ungulates in Norway, with particularly high seropositivity observed in wild reindeer and moose. This suggests that these animals may be potential reservoirs of HEV.
Article
Multidisciplinary Sciences
Juliette Di Francesco, Gabriela F. Mastromonaco, Janice E. Rowell, John Blake, Sylvia L. Checkley, Susan Kutz
Summary: This study measured physiological stress response in muskoxen by measuring fecal glucocorticoid metabolite levels following ACTH injections in winter and summer. Results showed variability in fecal cortisol levels and a clearer response in fecal corticosterone levels, influenced by seasonal factors and individual differences.
Article
Biodiversity Conservation
Doug MacNearney, Barry Nobert, Laura Finnegan
Summary: The study found that oil and gas development has a dynamic impact on woodland caribou habitat selection, with wellsites having the greatest influence when human activity is highest, continuing to affect habitat selection even after activity ceases. Caribou tend to avoid wellsites, with avoidance increasing based on the level of activity at the nearest wellsites. Management practices and land-use planning are needed to minimize impacts on caribou and their habitat.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Ecology
Antti-Juhani Pekkarinen, Sirpa Rasmus, Jouko Kumpula, Olli Tahvonen
Summary: This study examines the economic effects of variation in winter conditions on reindeer husbandry by combining a state-of-the-art economic-ecological model with annual reindeer management reports from Finland. The study finds that difficult winters decrease the net revenues of reindeer husbandry but also protect lichen pastures, thereby increasing future net revenues. However, the overall variability of winter conditions decreases the net income of herders, particularly when lichen biomass is low. The study suggests that climate change-induced variability of winter conditions will decrease net revenues in reindeer husbandry, even without the most extreme effects of climate change.
ECOLOGICAL APPLICATIONS
(2022)
Article
Forestry
Tim Horstkotte, Per Sandstrom, Wiebke Neumann, Anna Skarin, Sven Adler, Ulrika Roos, Jorgen Sjogren
Summary: The introduction of exotic lodgepole pine has negative effects on reindeer husbandry in northern Sweden, leading to a reduction in forage availability and winter grazing grounds. The presence of lodgepole pine stands significantly decreases lichen cover, which is an important food source for reindeer.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Ecology
Oili Tarvainen, Hannu Hokka, Jouko Kumpula, Anne Tolvanen
Summary: This study investigates the feasibility of reclaiming abandoned peatlands in Finland as reindeer summer pastures. The results suggest that both mechanical transplanting and sowing seed mixtures can promote the establishment of forage plants, but there are also challenges such as high costs and technical requirements.
RESTORATION ECOLOGY
(2022)
Article
Biodiversity Conservation
Eigil Reimers, Sindre Eftestol, Jonathan E. Colman
Summary: The study revealed significant differences in vigilance frequency among reindeer in different regions, while the duration of vigilance bouts remained relatively constant. This suggests that reindeer exhibit adaptability to environmental changes, influenced by factors such as warning time, grouping behavior, and visual physiology.
Article
Infectious Diseases
Akbar Dastjerdi, Sonja Jeckel, Hannah Davies, Jennifer Irving, Camille Longue, Charlotte Plummer, Marton Z. Vidovszky, Balazs Harrach, Julian Chantrey, Henny Martineau, Jonathan Williams
Summary: Adenoviruses are responsible for major diseases in various animal species, with deer species known to be affected by adenoviruses 1 and 2. While the former causes high fatality adenovirus hemorrhagic disease in certain deer species, the latter has been linked to fever, cough, and bleeding. Additionally, a novel deer mastadenovirus associated with necrotizing bronchiolitis in captive reindeer was identified for the first time.
TRANSBOUNDARY AND EMERGING DISEASES
(2022)
Article
Immunology
O. Alejandro Aleuy, Michele Anholt, Karin Orsel, Fabien Mavrot, Catherine A. Gagnon, Kimberlee Beckmen, Steeve D. Cote, Christine Cuyler, Andrew Dobson, Brett Elkin, Lisa-Marie Leclerc, Joelle Taillon, Susan Kutz
Summary: This study investigated the epidemiology and environmental factors of Erysipelothrix rhusiopathiae in the Arctic and found that seropositivity was highest during warmer months and among adult males. Summer seroprevalence increases were associated with oestrid index, icing and snowing events, and precipitation from the same year, but decreased with growing degree days in the same year. The findings provide valuable insights into disease prevalence and can help in anticipating and mitigating climate change-related diseases among Arctic wildlife and human populations.
EMERGING INFECTIOUS DISEASES
(2022)
Article
Biodiversity Conservation
A. Smith, C. J. Johnson
Summary: Populations of barren-ground caribou have declined due to climate change, natural fluctuations, human harvest, and industrial activities. This decline poses a significant threat to the Indigenous peoples who rely on caribou. Roads, especially those with high traffic, can impede caribou movement. A study in Canada found that caribou rarely crossed a winter road when any level of traffic was present. The research suggests that mitigation strategies should focus on minimizing traffic volume or providing breaks in traffic when caribou are near winter roads.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Multidisciplinary Sciences
Ilpo Kojola, Ville Hallikainen, Samuli Heikkinen, Jukka T. Forsman, Tuomas Kukko, Jyrki Pusenius, Paasivaara Antti
Summary: The study found that the population dynamics and reproductive output of wild forest reindeer were influenced by the abundances of wolves and moose, supporting the alternative prey hypothesis. However, the study also acknowledged that the alternative prey hypothesis and apparent competition hypothesis are not mutually exclusive, and the management of the entire ecosystem is crucial for the recovery of wild forest reindeer.
Article
Biodiversity Conservation
Tamara A. Hiltunen, Audun Stien, Maria Vaisanen, Erik Ropstad, Jouni O. Aspi, Jeffery M. Welker
Summary: The study found that Svalbard reindeer adjusted their late winter diets over a 17-year period, increasing the proportion of graminoids and decreasing the contribution of mosses. This dietary shift was associated with increases in graminoid abundance, population density, warmer summer temperatures, and increased snow-on-rain frequency in winter.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Biodiversity Conservation
Steven F. Wilson, Thomas D. Nudds, Andrew de Vries
Summary: With the urgency of conservation actions increasing, the identification of causal relationships becomes crucial for the successful recovery of endangered species. While observational studies are the main source of information, limitations in experimental conditions may lead to weak inferences, constraining decision-making.
BIOLOGICAL CONSERVATION
(2021)
Article
Biotechnology & Applied Microbiology
Alexandra Carrier, Julien Prunier, William Poisson, Mallorie Trottier-Lavoie, Isabelle Gilbert, Maria Cavedon, Kisun Pokharel, Juha Kantanen, Marco Musiani, Steeve D. Cote, Vicky Albert, Joelle Taillon, Vincent Bourret, Arnaud Droit, Claude Robert
Summary: This study reports the development of a SNP-array for the endangered Rangifer tarandus using a multi-platform sequencing approach. A total of 63,336 SNPs were selected from a comprehensive catalog of SNPs detected in diverse populations. This SNP-array design allows for the assessment of genetic metrics related to population structure, inbreeding, and sex determination, and is of great importance for conservation planning.