Results 1 to 10 of about 16,735 (140)

Questioning current practice in brown bear, Ursus arctos, conservation in Europe that undervalues taxonomy [PDF]

Animal Biodiversity and Conservation, 2016
Cuestionamiento de la actual estrategia de conservación del oso pardo, Ursus arctos, en Europa, que infravalora la taxonomía En este trabajo se ponen de relieve los problemas relacionados con la taxonomía actualmente aceptada del oso pardo, Ursus arctos,
S. Gippoliti
doaj   +3 more sources

Anencephaly and Severe Myelodysplasia in a Stillborn Brown Bear (Ursus arctos arctos) [PDF]

Animals, 2022
Malformations in the development of the neural tube have been described to be associated with different aetiologies, such as genetic factors, toxic plants, chemical products, viral agents, or hyperthermia.
Ana Balseiro, Laura Polledo, José Tuñón, Juan Francisco García Marín   +3 more
doaj   +2 more sources

First report of Taenia arctos (Cestoda: Taeniidae) from brown bears (Ursus arctos) in Romania [PDF]

Parasites & Vectors
Background The brown bear (Ursus arctos) is an apex predator with significant ecological importance and serves as a valuable indicator species for monitoring parasitic burdens in forest ecosystems.
Maria Monica Florina Moraru, Andrei-Daniel Mihalca, Ana-Maria Marin, Dan-Cornel Popovici, Azzurra Santoro, Sorin Morariu, Ioana Bianca Mitrea, Narcisa Mederle   +7 more
doaj   +2 more sources

Nutrient intake and its possible drivers in free‐ranging European brown bears (Ursus arctos arctos) [PDF]

Ecology and Evolution, 2023
The dietary nutrient profile has metabolic significance and possibly contributes to species' foraging behavior. The brown bear (Ursus arctos) was used as a model species for which dietary ingredient and nutrient concentrations as well as nutrient ratios ...
Annelies De Cuyper, Diederik Strubbe, Marcus Clauss, Luc Lens, Andreas Zedrosser, Sam Steyaert, Leen Verbist, Geert P. J. Janssens   +7 more
doaj   +2 more sources

Urinary capillariosis in a free-ranging Marsican brown bear (Ursus arctos marsicanus) [PDF]

International Journal for Parasitology: Parasites and Wildlife, 2018
Extraintestinal nematodes have been seldom investigated in the brown bear (Ursus arctos). In this study, a case of urinary capillariosis and bladder associated lesions is reported in a deceased free-ranging Marsican brown bear (Ursus arctos marsicanus ...
Alessia Mariacher, Claudia Eleni, Rosario Fico, Stefania Perrucci   +3 more
doaj   +2 more sources

Seasonal variations in ventricular repolarization and tachyarrhythmias in hibernating brown bears (Ursus arctos arctos) [PDF]

Physiological Reports
In humans, hypothermia prolongs ventricular repolarization and associates with sustained ventricular tachyarrhythmias. In bears, body temperature drops during hibernation similar to moderate human hypothermia, yet they rarely face fatal outcomes during ...
Lucas Alexander Lindberg, Boris Fuchs, Alina Lynn Evans, Timothy Laske, Anna Björkenheim, Ole Fröbert, Lisa Amalie Gottlieb   +6 more
doaj   +2 more sources

Vasculoprotective properties of plasma lipoproteins from brown bears (Ursus arctos) [PDF]

Journal of Lipid Research, 2021
Plasma cholesterol and triglyceride (TG) levels are twice as high in hibernating brown bears (Ursus arctos) than healthy humans. Yet, bears display no signs of early stage atherosclerosis development when adult.
Matteo Pedrelli, Paolo Parini, Jonas Kindberg, Jon M. Arnemo, Ingemar Bjorkhem, Ulrika Aasa, Maria Westerståhl, Anna Walentinsson, Chiara Pavanello, Marta Turri, Laura Calabresi, Katariina Öörni, Gérman Camejo, Ole Fröbert, Eva Hurt-Camejo   +14 more
doaj   +2 more sources

A hypothetico-deductive approach to assessing the social function of chemical signalling in a non-territorial solitary carnivore [PDF]

, 2012
The function of chemical signalling in non-territorial solitary carnivores is still relatively unclear. Studies on territorial solitary and social carnivores have highlighted odour capability and utility, however the social function of chemical ...
A Kodric-Brown, AA Karamanlidis, AJ Molteno, AM White, Andrew D. Ramsey, B Dahle, B Ríos-Uzeda, BJ Harmsen, BK Clapperton, BN McLellan, BN McLellan, CA Müller, D Kleiman, D Liu, DA Wilson, DW Macdonald, DW Macdonald, E Bellemain, F Rosell, F Rosell, Frank Rosell, G Sanchez-Andrade, GA Parker, GB Schaller, GB Schaller, GI Green, H Distel, HA Lloyd, I Barja, I Stirling, J Bothma, JC Seidensticker IV, JE Swenson, JE Swenson, JE Swenson, JF Eisenberg, JH Zar, JJ Craighead, JL Hurst, JLD Smith, K Ralls, K Yamazaki, KC Kendall, L Craighead, L Gosling, L Hagey, LM Gosling, LM Gosling, LM Gosling, M Kelly, M Trolle, ME Sunquist, Melanie Clapham, Michel Renou, ML Gorman, N Burgener, N Negrões, OG Støen, OT Nevin, OT Nevin, OT Nevin, OT Nevin, Owen T. Nevin, PA Brennan, PA Brennan, RB Wielgus, RB Wielgus, RB Wielgus, RE Brown, RE Johnston, RE Johnston, RL Doty, RR Swaisgood, RW Kays, S Puchkovskiy, S Te Wong, SB Hrdy, SC Roberts, SF Stringham, SM Gende, SM Jojola, SMJG Steyaert, T Guilford, T Rajagopal, TJ Rich, TJ Rich, TL Burst, ÖE Can   +87 more
core   +20 more sources

Members of the family Ursidae in the Museum of Nature of Kharkiv University and their craniological features [PDF]

Theriologia Ukrainica, 2019
The exhibition and scientific collection of the Museum of Nature currently deposit 16 specimens of the family Ursidae (bears), which belong to three species and 6 subspecies.
Yuriy Iliukhin
doaj   +1 more source

Problem-Solving and Spontaneous Tool-Using Ability in European Brown Bears (Ursus arctos arctos) [PDF]

Animal Behavior and Cognition, 2023
Little is known about the cognitive abilities of bears, despite possessing relatively large brains for their body size. One reason this group is perhaps overlooked is because they are thought to fail to conform to the “social brain” hypothesis, by being ...
Helen R. Chambers, Sean J. O’Hara
doaj   +1 more source