5,393 results match your criteria arctic fox


Antimicrobial Resistance in Coagulase-Positive Staphylococci Isolated from Various Animals in Bosnia and Herzegovina.

Microb Drug Resist 2021 Dec 2. Epub 2021 Dec 2.

Department of Microbiology and Infectious Diseases, Veterinary Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.

The objective of this study was to determine and compare the antimicrobial resistance profiles of clinical ( = 90) and ( = 61) isolates from different animal species in Bosnia and Herzegovina. Among isolates from dogs ( = 86), resistance to penicillin (87.2%) was most common followed by amoxicillin (76. Read More

View Article and Full-Text PDF
December 2021

Estimating red fox density using non-invasive genetic sampling and spatial capture-recapture modelling.

Oecologia 2021 Dec 2. Epub 2021 Dec 2.

Norwegian Institute for Nature Research, Høgskoleringen 9, 7034, Trondheim, Norway.

Spatial capture-recapture modelling (SCR) is a powerful tool for estimating density, population size, and space use of elusive animals. Here, we applied SCR modelling to non-invasive genetic sampling (NGS) data to estimate red fox (Vulpes vulpes) densities in two areas of boreal forest in central (2016-2018) and southern Norway (2017-2018). Estimated densities were overall lower in the central study area (mean = 0. Read More

View Article and Full-Text PDF
December 2021

Trophic niche overlap between coyotes and gray foxes in a temperate forest in Durango, Mexico.

PLoS One 2021 1;16(12):e0260325. Epub 2021 Dec 1.

Departamento de Ciencias Ambientales, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Unidad Lerma, Lerma de Villada, Mexico, Mexico.

Resource partitioning, and especially dietary partitioning, is a mechanism that has been studied for several canid species as a means to understand competitive relationships and the ability of these species to coexist. Coyotes (Canis latrans) and gray foxes (Urocyon cinereoargenteus) are two canid species that are widely distributed, in Mexico, and they are sympatric throughout most of their distribution range. However, trophic dynamic and overlap between them have not been thoroughly studied. Read More

View Article and Full-Text PDF
December 2021

Digging into the behaviour of an active hunting predator: arctic fox prey caching events revealed by accelerometry.

Mov Ecol 2021 Nov 27;9(1):58. Epub 2021 Nov 27.

Canada Research Chair On Northern Biodiversity, Université du Québec À Rimouski, 300 Allée des Ursulines, Rimouski, QC, G5L 3A1, Canada.

Background: Biologging now allows detailed recording of animal movement, thus informing behavioural ecology in ways unthinkable just a few years ago. In particular, combining GPS and accelerometry allows spatially explicit tracking of various behaviours, including predation events in large terrestrial mammalian predators. Specifically, identification of location clusters resulting from prey handling allows efficient location of killing events. Read More

View Article and Full-Text PDF
November 2021

Fox Serum Proteomics Analysis Suggests Host-Specific Responses to   Infection in Canids.

Pathogens 2021 Nov 19;10(11). Epub 2021 Nov 19.

Institute of Parasitology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 266a, 8057 Zurich, Switzerland.

Dogs infected with the cardiopulmonary nematode may suffer from respiratory distress and/or bleeding disorders. Descriptions of clinical signs in foxes are rare, despite high prevalence. To evaluate the impact of infection on coagulation and immune response, serum proteins from eight experimentally infected foxes before and after inoculation (day 0, 35, 84, 154) were subjected to differential proteomic analyses based on quantitative data and compared to available data from dogs. Read More

View Article and Full-Text PDF
November 2021

Zoonotic Genotypes of in Wild Living Invasive and Native Carnivores in Poland.

Pathogens 2021 Nov 13;10(11). Epub 2021 Nov 13.

Department of Parasitology, Faculty of Biological Sciences, University of Wrocław, 51-148 Wrocław, Poland.

Wild carnivores, both introduced and native species, are able to adapt well to peri-urban environments, facilitating cross-species pathogen transmission with domestic animals, and potentially humans. The role of wild living reservoir hosts cannot be ignored because of their known carriage of zoonotic genotypes. In the past decades, populations of wild living carnivores, i. Read More

View Article and Full-Text PDF
November 2021

Long-Tailed Pygmy Rice Rats Modify Their Behavioural Response and Faecal Corticosterone Metabolites in Response to Culpeo Fox but Not to Lesser Grison.

Animals (Basel) 2021 Oct 22;11(11). Epub 2021 Oct 22.

Departamento de Biología, Campus Universitario de Cantoblanco, Universidad Autónoma de Madrid, C/Darwin 2, 28049 Madrid, Spain.

Even though behavioural and physiological reactions to predation risk exhibited by prey species have received considerable attention in scientific journals, there are still many questions still unsolved. Our aim was to broaden the knowledge on one specific question: do long-tailed pygmy rice rats adapt their behavioural and physiological antipredator strategies depending on the predator species? For this question, we live-trapped in a temperate forest in Southern Chile long-tailed pygmy rice rats (), which were exposed to three predator odour phases (Phase 0: preliminary, no predator cues; Phase 1: one plot with culpeo fox faeces (), one plot with lesser grison () faeces and one plot acting as a control with no odour; Phase 2: post treatment, no predator cues). We measured the behavioural response by the capture ratio. Read More

View Article and Full-Text PDF
October 2021

Identification and quantification of fox meat in meat products by liquid chromatography-tandem mass spectrometry.

Food Chem 2022 Mar 5;372:131336. Epub 2021 Oct 5.

China Meat Research Center, 100068 Beijing, China. Electronic address:

Over the years, food adulteration has become an important global problem, threatening public health safety and the healthy development of food industry. This study established a liquid chromatography-tandem mass (LC-MS/MS) method for accurate identification and quantitative analysis of fox meat products. High-resolution mass was used for data collection, and Proteome Discoverer was used for data analysis to screen fox-specific peptides. Read More

View Article and Full-Text PDF

Evidence of Arctic Fox Survival following Exposure to Rabies Virus.

J Wildl Dis 2021 Nov 23. Epub 2021 Nov 23.

US Department of Agriculture, National Wildlife Research Center, 4101 Laporte Avenue, Fort Collins, Colorado 80521, USA.

The arctic fox variant of the rabies virus (RABV) is enzootic in the circumpolar north. Reports of abortive RABV exposures motivated a retrospective analysis of sera from 41 arctic foxes captured at Karrak Lake in Nunavut, Canada, during 2011-2015. Estimated RABV antibody prevalence among foxes was 14% (95% confidence interval, 7-28%). Read More

View Article and Full-Text PDF
November 2021

A rich mosaic of resistance in extended-spectrum β-lactamase-producing Escherichia coli isolated from red foxes (Vulpes vulpes) in Poland as a potential effect of increasing synanthropization.

Sci Total Environ 2021 Nov 20:151834. Epub 2021 Nov 20.

University of Life Sciences, Faculty of Veterinary Medicine, Department of Preclinical Veterinary Sciences, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland. Electronic address:

In our research, we analyzed the resistance of cephalosporin-resistant E. coli strains to antimicrobial agents. The strains were collected during five years from wild animal species commonly inhabiting Poland. Read More

View Article and Full-Text PDF
November 2021

Shrinking snowpacks, anxious snow lovers Little, Brown, 2021. 320 pp.

Authors:
Mark Serreze

Science 2021 Nov 18;374(6570):944. Epub 2021 Nov 18.

The reviewer is at the National Snow and Ice Data Center (NSIDC), University of Colorado, Boulder, CO 80309, USA, and the author of Brave New Arctic: The Untold Story of the Melting North (Princeton Univ. Press, 2018).

[Figure: see text]. Read More

View Article and Full-Text PDF
November 2021

CHARACTERIZATION OF LESIONS INDUCED BY SPIROCERCA VULPIS (SPIRURIDAE: SPIROCERCIDAE) IN RED FOXES (VULPES VULPES).

J Wildl Dis 2021 Nov 17. Epub 2021 Nov 17.

Universidad de Extremadura, Facultad de Veterinaria, Departamento de Sanidad Animal, Parasitología, Avda. Universidad s/n, 10003, Cáceres, Spain.

Spirocerca lupi infection in dogs (Canis domesticus) is associated with esophageal lesions that may evolve to a neoplastic stage in the form of esophageal sarcoma. In the red fox (Vulpes vulpes) infected with the closely related Spirocerca vulpis, similar lesions may occur in the stomach, but neoplastic forms have not been reported. We characterize Spirocerca vulpis-induced lesions in the fox, using pathology and immunohistochemical (IHC) techniques. Read More

View Article and Full-Text PDF
November 2021

Prevalence of Echinococcus Species in Wild Foxes and Stray Dogs in Qinghai Province, China.

Am J Trop Med Hyg 2021 Nov 15. Epub 2021 Nov 15.

National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai, China.

Echinococcosis is a zoonotic parasitic disease that is highly endemic to the Qinghai province of China. Limited data are available on the prevalence of the causal pathogen, Echinococcus spp., in definitive hosts in this region. Read More

View Article and Full-Text PDF
November 2021

An efficient method for simultaneous species, individual, and sex identification via in-solution single nucleotide polymorphism capture from low-quality scat samples.

Mol Ecol Resour 2021 Nov 14. Epub 2021 Nov 14.

Center for Conservation Genomics, Smithsonian Conservation Biology Institute and National Zoological Park, Washington, District of Columbia, USA.

Understanding predator population dynamics is important for conservation management because of the critical roles predators play within ecosystems. Noninvasive genetic sampling methods are useful for the study of predators like canids that can be difficult to capture or directly observe. Here, we introduce the FAECES* method (Fast and Accurate Enrichment of Canid Excrement for Species* and other analyses) which expands the toolbox for canid researchers and conservationists by using in-solution hybridization sequence capture to produce single nucleotide polymorphism (SNP) genotypes for multiple canid species from scat-derived DNA using a single enrichment. Read More

View Article and Full-Text PDF
November 2021

Spatiotemporal interactions of a novel mesocarnivore community in an urban environment before and during SARS-CoV-2 lockdown.

J Anim Ecol 2021 Nov 14. Epub 2021 Nov 14.

Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany.

Studying species interactions and niche segregation under human pressure provides important insights into species adaptation, community functioning and ecosystem stability. Due to their high plasticity in behaviour and diet, urban mesocarnivores are ideal species for studying community assembly in novel communities. We analysed the spatial and temporal species interactions of an urban mesocarnivore community composed of the red fox Vulpes vulpes and the marten Martes sp. Read More

View Article and Full-Text PDF
November 2021

Effects of competitive pressure and habitat heterogeneity on niche partitioning between Arctic and boreal congeners.

Sci Rep 2021 Nov 11;11(1):22133. Epub 2021 Nov 11.

British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK.

The rapidly changing climate in the Arctic is expected to have a major impact on the foraging ecology of seabirds, owing to changes in the distribution and abundance of their prey but also that of competitors (e.g. southerly species expanding their range into the Arctic). Read More

View Article and Full-Text PDF
November 2021

Cold comfort: Arctic seabirds find refugia from climate change and potential competition in marginal ice zones and fjords.

Ambio 2021 Nov 9. Epub 2021 Nov 9.

British Antarctic Survey (BAS), High Cross, Madingley Road, Cambridge, CB3 0ET, UK.

Climate change alters species distributions by shifting their fundamental niche in space through time. Such effects may be exacerbated by increased inter-specific competition if climate alters species dominance where competitor ranges overlap. This study used census data, telemetry and stable isotopes to examine the population and foraging ecology of a pair of Arctic and temperate congeners across an extensive zone of sympatry in Iceland, where sea temperatures varied substantially. Read More

View Article and Full-Text PDF
November 2021

Spermatozoon head size - the main differentiating feature between spermatozoa of blue and white Arctic fox (Vulpes lagopus).

Anim Reprod 2021 22;18(3):e20210015. Epub 2021 Oct 22.

Faculty of Animal Breeding and Biology, Bydgoszcz University of Science and Technology, Mazowiecka, Bydgoszcz, Poland.

Morphology and sperm morphometry, this is an important determinant of male reproductive capacity. Morphometric data may provide relevant information in studies focused on evolutionary biology, sperm quality assessment, including prediction of the potential fertility, semen cryopreservation, or the effect of reprotoxicants. The paper presents the morphometric analysis of spermatozoa from two colour morphs of Arctic fox (Vulpes lagopus), and attempts to determine the relationship between selected quality indicators and dimensions and shape of spermatozoa. Read More

View Article and Full-Text PDF
October 2021

Molecular detection and genotyping of Enterocytozoon bieneusi in captive foxes in Xinxiang, Central China and its impact on gut bacterial communities.

Res Vet Sci 2021 Dec 30;141:138-144. Epub 2021 Oct 30.

College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450000, China. Electronic address:

Enterocytozoon bieneusi is a common gastrointestinal parasite that has a broad range of hosts, including birds, mammals, and even humans. The changes of gut bacterial communities have been demonstrated during the course of E. bieneusi. Read More

View Article and Full-Text PDF
December 2021

Occurrence of mesocarnivores in montane sky islands: How spatial and temporal overlap informs rabies management in a regional hotspot.

PLoS One 2021 5;16(11):e0259260. Epub 2021 Nov 5.

Texas A&M University-Kingsville, Kingsville, Texas, United States of America.

Interspecific interactions among mesocarnivores can influence community dynamics and resource partitioning. Insights into these interactions can enhance understanding of local ecological processes that have impacts on pathogen transmission, such as the rabies lyssavirus. Host species ecology can provide an important baseline for disease management strategies especially in biologically diverse ecosystems and heterogeneous landscapes. Read More

View Article and Full-Text PDF
November 2021

Thelazia callipaeda in Slovakia - From sporadic cases to endemic areas.

Parasitol Int 2021 Nov 2;87:102495. Epub 2021 Nov 2.

Commenius University, Faculty of Natural Sciences, Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia.

Spirurid nematode Thelazia callipaeda, transmitted by the fruit fly Phortica variegata, is a causative agent of an ocular parasitic disease called also canine thelaziosis. Dogs, cats, and wild canids are considered the primary definitive hosts for the parasite, but humans may also serve as aberrant definitive hosts. For long decades the geographic range of T. Read More

View Article and Full-Text PDF
November 2021

Pleistocene foxes (Vulpes, Canidae, Carnivora) from the Taurida Cave, Crimea.

Dokl Biol Sci 2021 Sep 3;500(1):123-126. Epub 2021 Nov 3.

Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia.

A mandible fragment and four isolated teeth of the fossil foxes, Vulpes alopecoides (Del Campana, 1913), Vulpes cf. vulpes (Linnaeus, 1758) and Vulpes sp., are described from the Early Pleistocene locality of Taurida cave (Crimea, Late Villafranchian, 1. Read More

View Article and Full-Text PDF
September 2021

Comparison of the content of selected heavy metals in the liver tissue of the wild boar (Sus scrofa), red fox (Vulpes vulpes) and red deer (Cervus elaphus), living in north-eastern Poland.

Pol J Vet Sci 2021 Sep;24(3):425-432

Clinic of Ruminant and Swine Diseases, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic.

The study aimed to determine the content of selenium (Se), zinc (Zn), copper (Cu) and cadmium (Cd) in the liver of predominantly plant-eating omnivore wild boar (Sus scrofa), predominantly meat-eating omnivore red fox (Vulpes vulpes) and herbivore red deer (Cervus elaphus), from North-Eastern Poland (Warmia and Mazury), in order to verify the distribution of these elements in the trophic pyramid. Furthermore, the study was used to assess the risk of eating venison. Samples were analyzed using atomic absorption spectrophotometry. Read More

View Article and Full-Text PDF
September 2021

Human-modified landscapes provide key foraging areas for a threatened flying mammal: The grey-headed flying-fox.

PLoS One 2021 1;16(11):e0259395. Epub 2021 Nov 1.

Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.

Urban expansion is a major threat to natural ecosystems but also creates novel opportunities that adaptable species can exploit. The grey-headed flying-fox (Pteropus poliocephalus) is a threatened, highly mobile species of bat that is increasingly found in human-dominated landscapes, leading to many management and conservation challenges. Flying-fox urbanisation is thought to be a result of diminishing natural foraging habitat or increasing urban food resources, or both. Read More

View Article and Full-Text PDF
November 2021

Soil contamination by Echinococcus multilocularis in rural and urban vegetable gardens in relation to fox, cat and dog faecal deposits.

Parasite 2021 1;28:74. Epub 2021 Nov 1.

Epidémio-Surveillance et Circulation des Parasites dans les Environnements (ESCAPE), EA 7510, CAP SANTE, Université de Reims Champagne Ardenne, 51095 Reims Cedex, France - CERFE, Université de Reims Champagne-Ardenne, 08240 Boult-aux-Bois, France.

Echinococcus multilocularis eggs are deposited on the ground with the faeces of the carnivore definitive hosts. A reliable assessment of the spatial distribution of E. multilocularis eggs in environments used by humans is crucial for the prevention of alveolar echinococcosis (AE). Read More

View Article and Full-Text PDF
November 2021

SEROSURVEY FOR SELECTED PARASITIC AND BACTERIAL PATHOGENS IN DARWIN'S FOX (LYCALOPEX FULVIPES): NOT ONLY DOG DISEASES ARE A THREAT.

J Wildl Dis 2021 Oct 29. Epub 2021 Oct 29.

Facultad de Ciencias de la Vida, Universidad Andres Bello, República 252, Santiago, Chile.

The Darwin's fox (Lycalopex fulvipes) is one of the most endangered carnivores worldwide, with the risk of disease spillover from domestic dogs being a major conservation threat. However, lack of epidemiologic information about generalist, non-dog-transmission-dependent protozoal and bacterial pathogens may be a barrier for disease prevention and management. To determine the exposure of some of these agents in Darwin's fox populations, 54 serum samples were collected from 47 Darwin's foxes in Southern Chile during 2013-18 and assessed for the presence of antibodies against Brucella abortus, Brucella canis, Coxiella burnetii, pathogenic Leptospira (serovars Grippotyphosa, Pomona, Canicola, Hardjo, and Copehageni), Toxoplasma gondii, and Neospora caninum. Read More

View Article and Full-Text PDF
October 2021

Genetic structure of immunologically associated candidate genes suggests arctic rabies variants exert differential selection in arctic fox populations.

PLoS One 2021 29;16(10):e0258975. Epub 2021 Oct 29.

Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, Canada.

Patterns of local adaptation can emerge in response to the selective pressures diseases exert on host populations as reflected in increased frequencies of respective, advantageous genotypes. Elucidating patterns of local adaptation enhance our understanding of mechanisms of disease spread and the capacity for species to adapt in context of rapidly changing environments such as the Arctic. Arctic rabies is a lethal disease that largely persists in northern climates and overlaps with the distribution of its natural host, arctic fox. Read More

View Article and Full-Text PDF
October 2021

Diet of a threatened endemic fox reveals variation in sandy beach resource use on California Channel Islands.

PLoS One 2021 28;16(10):e0258919. Epub 2021 Oct 28.

Marine Science Institute, University of California, Santa Barbara, California, United States of America.

The coastal zone provides foraging opportunities for insular populations of terrestrial mammals, allowing for expanded habitat use, increased dietary breadth, and locally higher population densities. We examined the use of sandy beach resources by the threatened island fox (Urocyon littoralis) on the California Channel Islands using scat analysis, surveys of potential prey, beach habitat attributes, and stable isotope analysis. Consumption of beach invertebrates, primarily intertidal talitrid amphipods (Megalorchestia spp. Read More

View Article and Full-Text PDF
November 2021

Newlavirus, a Novel, Highly Prevalent, and Highly Diverse Protoparvovirus of Foxes ( spp.).

Viruses 2021 Sep 30;13(10). Epub 2021 Sep 30.

Department of Biology, Memorial, University of Newfoundland, 232 Elizabeth Ave., St. John's, NL A1B 3X9, Canada.

The genus (family ) includes several viruses of carnivores. We describe a novel fox protoparvovirus, which we named Newlavirus as it was discovered in samples from Newfoundland and Labrador, Canada. Analysis of the full non-structural protein (NS1) sequence indicates that this virus is a previously uncharacterized species. Read More

View Article and Full-Text PDF
September 2021

Livestock guarding dogs have minor effects on the parasite burden of wild carnivores.

Parasitol Res 2021 Dec 25;120(12):3993-3999. Epub 2021 Oct 25.

Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, 7800003, Santiago, CP, Chile.

Livestock guarding dogs are increasingly used to reduce carnivore-livestock conflicts, but no information is available to determine any adverse effects that these dogs may have on the health of wild carnivores. We assessed differences in prevalence, richness and severity of parasites in chilla fox (Lycalopex griseus) populations associated with livestock guarding dogs, which were routinely dewormed. We also evaluated whether the parasite assemblages of herding dogs, which were not dewormed, and chilla foxes were more similar in the presence of livestock guarding dogs. Read More

View Article and Full-Text PDF
December 2021