Article
Ecology
Heather E. Johnson, Elizabeth A. Lenart, David D. Gustine, Layne G. Adams, Perry S. Barboza
Summary: This study investigated the relationship between summer forage and insect activity and the demographic rates of Arctic caribou. The findings showed that greater early summer digestible nitrogen was associated with increased subsequent calving success, while greater summer biomass was associated with increased adult survival. Mosquito activity was linked to reductions in adult female parturition, calving success, and survival.
FRONTIERS IN ECOLOGY AND EVOLUTION
(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
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
Biochemistry & Molecular Biology
Rebecca S. Taylor, Micheline Manseau, Cornelya F. C. Klutsch, Jean L. Polfus, Audrey Steedman, Dave Hervieux, Allicia Kelly, Nicholas C. Larter, Mary Gamberg, Helen Schwantje, Paul J. Wilson
Summary: The study found that a major population expansion of caribou occurred at the start of the last glacial period, with effective population sizes reaching 700,000 to 1,000,000 individuals, one of the highest for any mammal species recorded. Mitochondrial analyses dated introgression events prior to the last glacial maximum, demonstrating the importance of pre-LGM events in shaping demographic history.
Article
Environmental Sciences
Martin-Hugues St-Laurent, Yan Boulanger, Dominic Cyr, Francis Manka, Pierre Drapeau, Sylvie Gauthier
Summary: This study evaluated how climate change will affect boreal caribou habitat, finding that it may lead to a decrease in habitat quality, a reduction in high-quality habitat, and a northward recession of suitable habitat. Timber harvesting was found to be the most important factor of change for the 2030-2050 horizon, although it may be replaced by changes in fire regime by 2100.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Chloe A. Pupier, Renaud Grover, Maoz Fine, Cecile Rottier, Jeroen A. J. M. van de Water, Christine Ferrier-Pages
Summary: Hard coral symbioses have higher nitrogen assimilation rates compared to soft coral symbioses, possibly due to the former's reliance on dissolved nitrogen assimilation by algal symbionts while the latter prefer to obtain nitrogen through heterotrophic feeding. This study highlights the different nutritional strategies of soft and hard coral symbioses, with potential implications for coral growth in reefs with varying water quality.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biodiversity Conservation
John P. Severson, Heather E. Johnson, Stephen M. Arthur, William B. Leacock, Michael J. Suitor
Summary: Phenological changes in spring can have significant impacts on the behavior and space utilization patterns of migratory barren-ground caribou, with future climate conditions projected to further shift their distributions westward.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biodiversity Conservation
Rachel Schwartz-Narbonne, Tessa Plint, Elizabeth Hall, Grant Zazula, Fred J. Longstaffe
Summary: Cervids living in high latitudes have evolved to adapt to seasonal changes in ecosystems. Antlers provide insight into seasonal ecology, with stable isotopes revealing dietary data. Isotopic analysis of caribou antlers shows similar patterns to other collagenous tissues.
Article
Biodiversity Conservation
Steven F. Wilson, Wendy Crosina, Elston Dzus, Dave Hervieux, Philip D. McLoughlin, Laura M. Trout, Thomas D. Nudds
Summary: Delineating relevant local populations of widely distributed species is a common challenge in conservation ecology. In this study, the researchers used GPS telemetry data and network analysis to identify local population boundaries of caribou populations, providing valuable information for conservation planning.
GLOBAL ECOLOGY AND CONSERVATION
(2022)
Review
Zoology
Quinn M. R. Webber, Kristy M. Ferraro, Jack G. Hendrix, Eric Vander Wal
Summary: Historically, comprehensive circumpolar analyses of caribou and reindeer diet have been lacking. This study provides a systematic overview of caribou diet and tests biologically relevant hypotheses about dietary variation. The results reveal that caribou primarily consume lichen in winter, but switch to graminoids and other vascular plants in warmer seasons and areas with lower primary productivity. The study highlights the importance of understanding caribou diet as climate change impacts their food sources.
CANADIAN JOURNAL OF ZOOLOGY
(2022)
Article
Forestry
Nikolas de Souza Mateus, Eric Victor Oliveira Ferreira, Antonio Leite Florentino, Alexandre Vicente Ferraz, Jean-Christophe Domec, Lionel Jordan-Meille, Jose Albertino Bendassolli, Jose Leonardo Moraes Goncalves, Jose Lavres
Summary: Potassium (K) supply can enhance growth and improve osmotic adjustment in Eucalyptus seedlings under drought stress, by regulating leaf development, stomatal density, and leaf gas exchange parameters to increase water use efficiency.
Article
Ecology
Timothy J. Fullman, Ryan R. Wilson, Kyle Joly, David D. Gustine, Paul Leonard, Wendy M. Loya
Summary: This study explores the behavior patterns of migratory species and their impact on development projects, presenting a technique that uses circuit theory to predict future effects of development. Caribou avoid dense vegetation, rugged terrain, and other natural environmental features during migration, with different relationships between resource selection and landscape resistance observed during spring and fall migrations.
ECOLOGICAL APPLICATIONS
(2021)
Article
Ecology
Kristin Denryter, Rachel C. Cook, John G. Cook, Katherine L. Parker
Summary: Populations of woodland caribou are declining and the role of nutrition in these declines remains poorly understood. This study quantified rates of nutrition intake by tame caribou and found that they were unable to meet their protein and energy requirements during lactation. Simulations also showed widespread nutritional inadequacies for wild caribou. These results have implications for the productivity and conservation of caribou populations.
JOURNAL OF WILDLIFE MANAGEMENT
(2022)
Article
Biodiversity Conservation
Melanie Dickie, Geoff G. Sherman, Glenn D. Sutherland, Robert S. McNay, Michael Cody
Summary: Restoration of human-altered habitat is crucial for maintaining self-sustaining woodland caribou populations. This study evaluated the impact of restoration on predator-prey dynamics by measuring the movement speeds of predators and their associated prey on treated and untreated seismic lines. The results show that restoration treatments reduce travel speeds of predators and caribou, potentially leading to a decrease in caribou mortality.
CONSERVATION BIOLOGY
(2023)
Article
Agronomy
Shuaikang Liu, Xiang Lin, Weiyan Wang, Baojun Zhang, Dong Wang
Summary: Supplemental irrigation is considered effective in improving grain yield and nitrogen utilization efficiency in winter wheat, but its mechanism is not clear. This study found that moderate supplemental irrigation can increase grain yield and nitrogen utilization efficiency in winter wheat by improving the nitrogen nutrition status. The nitrogen nutrition index at anthesis is an important indicator for irrigation management and improving grain yield and water productivity in winter wheat.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Biodiversity Conservation
Robert E. Wilson, Sean D. Farley, Thomas J. McDonough, Sandra L. Talbot, Perry S. Barboza
CONSERVATION GENETICS
(2015)
Article
Biodiversity Conservation
M. N. Grant-Hoffman, Perry S. Barboza
BIOLOGICAL INVASIONS
(2010)
Article
Ecology
Joelle Taillon, Perry S. Barboza, Steeve D. Cote
Review
Ecology
Katherine L. Parker, Perry S. Barboza, Michael P. Gillingham
FUNCTIONAL ECOLOGY
(2009)
Article
Biochemical Research Methods
Adelia Falk, Thomas K. Green, Perry Barboza
JOURNAL OF CHROMATOGRAPHY A
(2008)
Article
Physiology
Jessica A. Coltrane, Perry S. Barboza
JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY
(2010)
Article
Multidisciplinary Sciences
Monica A. Sundset, Perry S. Barboza, Thomas K. Green, Lars P. Folkow, Arnoldus Schytte Blix, Svein D. Mathiesen
NATURWISSENSCHAFTEN
(2010)
Review
Physiology
Perry S. Barboza, Katherine L. Parker
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY
(2008)
Article
Multidisciplinary Sciences
David D. Gustine, Perry S. Barboza, Layne G. Adams, Nathan B. Wolf
Article
Ecology
Troy M. Hegel, David Verbyla, Falk Huettmann, Perry S. Barboza
POPULATION ECOLOGY
(2012)
Article
Veterinary Sciences
Katherine L. Parker, Perry S. Barboza
Article
Zoology
Adam J. Munn, Perry S. Barboza
Article
Zoology
Annie R. Crater, Perry S. Barboza
JOURNAL OF MAMMALOGY
(2007)
Article
Ecology
Claudia Ihl, Perry S. Barboza
JOURNAL OF WILDLIFE MANAGEMENT
(2007)