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Kautto AH, Olsen A, Wallander C, Vågsholm I. Toxoplasma gondii seroprevalence in reindeer (Rangifer tarandus tarandus L.) in northern Sweden: a cross-sectional study from 2014. Acta Vet Scand 2023; 65:53. [PMID: 38087328 PMCID: PMC10717472 DOI: 10.1186/s13028-023-00717-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/03/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Toxoplasma gondii is a parasitic protozoan that can infect a wide range of warm-blooded animals, including humans. The infection with T. gondii, is of particular concern due to its potential impact on human and animal health. In Sweden, semi-domesticated reindeer (Rangifer tarandus tarandus L.) is an important species both economically and culturally, but susceptibility to Toxoplasma infection and seroprevalence in reindeer herds remain relatively understudied. RESULTS A total of 528 reindeer, sampled at two slaughterhouses in Sweden in 2014, were investigated for antibodies to T. gondii. Specific antibodies to T. gondii were found in 5 of 209 (2.3%) tested adult reindeer and in 6 of 308 (1.9%) tested calves, giving an apparent total prevalence of 2.1% (95% confidence interval 1.1-3.8%). None of four putative risk factors studied (sex, age, type of grazing area, county) were statistically associated with T. gondii seroprevalence. CONCLUSIONS Swedish semi-domesticated reindeer are exposed to T. gondii and may harbour infectious tissue cysts. To mitigate the risk of T. gondii infection in consumers, reindeer meat should be frozen or cooked thoroughly before consumption. The global climate change may influence the seroprevalence and possible associated risk factors for T. gondii in reindeer. To be able to manage the risk and get better advice to the consumers there is a need for further investigations covering the whole spectra of herding conditions for reindeer.
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Affiliation(s)
- Arja Helena Kautto
- Department for Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Ultuna, Uppsala, Sweden.
| | - Abbey Olsen
- Section for Animal Welfare and Disease Control, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Camilla Wallander
- Department for Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Ultuna, Uppsala, Sweden
| | - Ivar Vågsholm
- Department for Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Ultuna, Uppsala, Sweden
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Vinueza P, Calispa M, Condolo L, Toalombo P, Geldhof P. Benzimidazole Resistance in Cattle: The First Report of the Presence of F200Y Mutation in Cooperia in Ecuador. Vet Sci 2023; 10:378. [PMID: 37368764 DOI: 10.3390/vetsci10060378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Anthelmintic resistance among GINs in cattle is a worldwide issue. Identifying the early signs of anthelmintic resistance (AR) is necessary to sustainably manage bovine parasitic infections. This study aimed to evaluate the resistance status of bovine parasitic nematodes against FBZ on a farm with a known history of broad-spectrum anthelmintic usage in Ecuador. FBZ efficacy was analyzed using a fecal egg count reduction test (FECR test) and β-tubulin 1 mutation identification in Cooperia spp., the dominant nematode parasite identified before and after treatment. According to the FECR test, the nematode population was susceptible to FBZ. After amplifying and cloning the β-tubulin 1 of Cooperia spp., an F200Y mutation was found in 43% of the pooled larva coproculture after treatment. This study reports, for the first time, the presence of F200Y resistance-conferring mutation in Cooperia spp. in Ecuador. Although the nematode population was phenotypically susceptible to FBZ, the presence of F200Y suggests the existence of resistance in the early stages. Our findings highlight the need to implement alternative control strategies for parasitic infections besides broad-spectrum anthelmintics.
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Affiliation(s)
- Pamela Vinueza
- Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias Pecuarias, Carrera de Medicina Veterinaria, Riobamba 060106, Ecuador
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133-B, 9820 Merelbeke, Belgium
| | - Marlon Calispa
- UCLouvain, Earth al Life Institute ELIE, ELI Croix du Sud 2L/L7.05.05, 1348 Louvain-la-Neuve, Belgium
| | - Luis Condolo
- Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias Pecuarias, Carrera de Medicina Veterinaria, Riobamba 060106, Ecuador
| | - Paula Toalombo
- Escuela Superior Politécnica de Chimborazo, Facultad de Ciencias Pecuarias, Carrera de Medicina Veterinaria, Riobamba 060106, Ecuador
| | - Peter Geldhof
- Laboratory of Parasitology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133-B, 9820 Merelbeke, Belgium
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Płoneczka-Janeczko K, Szalińska W, Otop I, Piekarska J, Rypuła K. Weather parameters as a predictive tool potentially allowing for better monitoring of dairy cattle against gastrointestinal parasites hazard. Sci Rep 2023; 13:5944. [PMID: 37045884 PMCID: PMC10097711 DOI: 10.1038/s41598-023-32890-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
In animal production, yield is critically related to animal health status. To ensure high productivity, innovative control strategies for herd and parasites monitoring are required. Gastrointestinal parasites have a strong influence on changing feed intake or nutrient use, limiting animal productivity. Serological control has been proposed, given that parasite development is largely dependent on environmental temperature and humidity. However, breeders and field veterinarians lack readily accessible climate characteristics that provide information to determine whether and when herds require laboratory examination. To help reduce the testing costs incurred by farmers, we investigated whether selected meteorological data could serve as conclusive predictors to increase the precision of herd selection for serological monitoring. Our results indicate that the selection of herds by farmers for testing can be guided by regular checking of meteorological data, especially various temperature and humidity indicators. In general, ranges of 24-28 °C, as well as - 0.5 to 7.5 °C for the monthly maximum and minimum temperature, respectively, and relative humidity (68-79%) and vapour pressure (10-15 hPa) correspond to a high antiparasitic response of the herd, expressed as the optical density ratio. It is recommended to introduce coproscopic and/or serological tests if the observed weather pattern (covering the prepatent period of parasite development) ranges within the estimated values.
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Affiliation(s)
- Katarzyna Płoneczka-Janeczko
- Department of Epizootiology with Clinic for Birds and Exotic Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Square 45, 50-366, Wrocław, Poland.
| | - Wiwiana Szalińska
- Research and Development Centre, Institute of Meteorology and Water Management - National Research Institute, Podleśna 61, 01-673, Warsaw, Poland
| | - Irena Otop
- Research and Development Centre, Institute of Meteorology and Water Management - National Research Institute, Podleśna 61, 01-673, Warsaw, Poland
| | - Jolanta Piekarska
- Division of Parasitology, Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Grunwaldzki Square 47, 50-366, Wrocław, Poland
| | - Krzysztof Rypuła
- Department of Epizootiology with Clinic for Birds and Exotic Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Square 45, 50-366, Wrocław, Poland
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Diggins CA. Anthropogenically-induced range expansion as an invasion front in native species: An example in North American flying squirrels. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1096244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Biological invasions are typically framed as non-native species impacting the populations of native species or ecosystems. However, in a changing world, taxonomically similar native species that were previously parapatric or allopatric may become increasingly sympatric over short time periods (<100 years). In the context of climate change in the Northern Hemisphere, this may have a negative impact on northern species whose ranges are being invaded by southern species. To highlight factors that may influence invasion fronts in native species, I use two species of North American flying squirrels, small-bodied nocturnal arboreal Sciurids, as an example. I discuss what factors may enable or limit the expansion of southern flying squirrels (SFS; Glaucomys fuscus) into northern flying squirrel (NFS; Glaucomys sabrinus) habitat and potential impacts that anthropogenically-induced factors have on range shift dynamics. The range expansion of SFS may impact NFS via resource competition, hybridization, and parasite-mediation. Factors potentially enabling the expansion of SFS into NFS habitat include anthropogenic habitat disturbance and climate change, wherein historical land-use (i.e., logging) alters forest composition increasing habitat suitability for SFS and a warming climate allows SFS to expanded their ranges northward into colder regions. Shifts in forest species composition from historical logging may interact with a warming climate to enable SFS to quickly expand their range. Factors limiting SFS expansion include thermoregulation limitations and absence of potential food and denning resources. The factors influencing the dynamics between these two species may be applicable to the shifting ranges of other taxonomically and functionally similar native species in the context of a rapidly changing world in the Anthropocene.
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Chenery ES, Harms NJ, Fenton H, Mandrak NE, Molnár PK. Revealing large‐scale parasite ranges: An integrated spatiotemporal database and multisource analysis of the winter tick. Ecosphere 2023. [DOI: 10.1002/ecs2.4376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Emily S. Chenery
- Department of Physical and Environmental Sciences University of Toronto Scarborough Scarborough Ontario Canada
| | - N. Jane Harms
- Animal Health Unit Department of Environment Whitehorse Yukon Canada
| | - Heather Fenton
- Department of Environment and Natural Resources Government of Northwest Territories Yellowknife Northwest Territories Canada
| | - Nicholas E. Mandrak
- Department of Physical and Environmental Sciences University of Toronto Scarborough Scarborough Ontario Canada
- Department of Biological Sciences University of Toronto Scarborough Scarborough Ontario Canada
- Department of Ecology and Evolutionary Biology University of Toronto Toronto Ontario Canada
| | - Péter K. Molnár
- Department of Physical and Environmental Sciences University of Toronto Scarborough Scarborough Ontario Canada
- Department of Biological Sciences University of Toronto Scarborough Scarborough Ontario Canada
- Department of Ecology and Evolutionary Biology University of Toronto Toronto Ontario Canada
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Rizwan HM, Usman M, Naeem MA, Farid MU, Younus M, Sajid MS, Tahir UB, Luqman N, Abbas H, Ateeq MK, Taseer MSA, Asif M. Prevalence of Ruminant Paramphistomosis and Comparative Histopathology of the Infected Rumens in Narowal District, Punjab, Pakistan. Helminthologia 2022; 59:377-384. [PMID: 36875675 PMCID: PMC9979068 DOI: 10.2478/helm-2022-0041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/18/2022] [Indexed: 02/05/2023] Open
Abstract
The present study reports the prevalence of Paramphistomum spp. in small and large ruminants and their association with the histopathology of the infected rumens. A total of 384 animals were screened for Paramphistomum spp. The animals found positive for Paramphistomum spp. were divided into three groups according to the worm load/5 cm2 (G1: 10 - 20 worms/5 cm2 = Low, G2: 20 - 40 worms/5 cm2 = Medium, and G3: >41 worms/5 cm2 = High). Tissue slides were prepared from samples of the rumen (1 cm2) taken from animals positive for ruminal fluke to determine the histological parameters, including epithelial length or thickness, length and width of the ruminal papilla, and thickness of tunica submucosa and mucularis externae. The overall prevalence of Paramphistomum spp. in the ruminant population of district Narowal was 56.25 % with a significant (P < 0.05) variation among different species of ruminants. The highest prevalence was in cattle, followed in order by buffalo, goat, and sheep. Epithelium thickness was significantly correlated with parasite load in large ruminants and the most significant (P < 0.05) decrease in epithelium thickness was in Group B (31.12 ± 1.82 μm) and Group C (31.07 ± 1.68 μm) and a same trend was recorded in small ruminants. Histopathological changes due to Paramphistomum spp. are reported for the first time, which explained the histomorphological and physiological changes in Paramphistomum-infected rumens which might be associated with lowered feed efficiency and productivity in ruminants.
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Affiliation(s)
- H. M. Rizwan
- Section of Parasitology, Department of Pathobiology, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. Usman
- Section of Histology, Department of Basic Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. A. Naeem
- Section of Pharmacology, Department of Basic Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. U. Farid
- Section of Meat Science, Department of Animal Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. Younus
- Section of Pathology, Department of Pathobiology, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. S. Sajid
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - U. B. Tahir
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - N. Luqman
- Veterinary Research Institute, Department of Livestock and Dairy Development, Lahore, Punjab, Pakistan
| | - H. Abbas
- Section of Parasitology, Department of Pathobiology, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. K. Ateeq
- Section of Histology, Department of Basic Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. S. A. Taseer
- Section of Meat Science, Department of Animal Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
| | - M. Asif
- Section of Statistics and Math, Department of Social Sciences, KBCMA College of Veterinary and Animal Sciences, Narowal, Sub-campus UVAS, Lahore, Pakistan
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Bautista-Garfias CR, Castañeda-Ramírez GS, Estrada-Reyes ZM, Soares FEDF, Ventura-Cordero J, González-Pech PG, Morgan ER, Soria-Ruiz J, López-Guillén G, Aguilar-Marcelino L. A Review of the Impact of Climate Change on the Epidemiology of Gastrointestinal Nematode Infections in Small Ruminants and Wildlife in Tropical Conditions. Pathogens 2022; 11:148. [PMID: 35215092 PMCID: PMC8875231 DOI: 10.3390/pathogens11020148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 12/10/2022] Open
Abstract
Climate change is causing detrimental changes in living organisms, including pathogens. This review aimed to determine how climate change has impacted livestock system management, and consequently, what factors influenced the gastrointestinal nematodes epidemiology in small ruminants under tropical conditions. The latter is orientated to find out the possible solutions responding to climate change adverse effects. Climate factors that affect the patterns of transmission of gastrointestinal parasites of domesticated ruminants are reviewed. Climate change has modified the behavior of several animal species, including parasites. For this reason, new control methods are required for controlling parasitic infections in livestock animals. After a pertinent literature analysis, conclusions and perspectives of control are given.
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Affiliation(s)
- Carlos Ramón Bautista-Garfias
- National Center for Disciplinary Research in Animal Health and Safety (INIFAP), Km 11 Federal Road Cuernavaca-Cuautla, Jiutepec 62550, MR, Mexico; (C.R.B.-G.); (G.S.C.-R.)
| | - Gloria Sarahi Castañeda-Ramírez
- National Center for Disciplinary Research in Animal Health and Safety (INIFAP), Km 11 Federal Road Cuernavaca-Cuautla, Jiutepec 62550, MR, Mexico; (C.R.B.-G.); (G.S.C.-R.)
- National Institute of Research for Forestry Agricultural and Livestock (INIFAP), Experimental Station Rosario Izapa, Tuxtla Chico 30780, CS, Mexico;
| | - Zaira Magdalena Estrada-Reyes
- Department of Animal Science, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA;
| | | | - Javier Ventura-Cordero
- School of Biological Sciences, Queen’s University Belfast, Chlorine Gardens, Belfast BT9 5BL, UK; (J.V.-C.); (E.R.M.)
| | - Pedro Geraldo González-Pech
- Faculty of Veterinary Medicine and Zootechnics, Autonomous University of Yucatán, Km 15.5 Road Mérida-Xmatkuil, Mérida 97100, YU, Mexico;
| | - Erick R. Morgan
- School of Biological Sciences, Queen’s University Belfast, Chlorine Gardens, Belfast BT9 5BL, UK; (J.V.-C.); (E.R.M.)
| | - Jesús Soria-Ruiz
- Geomatics Lab, National Institute of Research for Forestry Agricultural and Livestock (INIFAP), Zinacantepec 52107, MX, Mexico;
| | - Guillermo López-Guillén
- National Institute of Research for Forestry Agricultural and Livestock (INIFAP), Experimental Station Rosario Izapa, Tuxtla Chico 30780, CS, Mexico;
| | - Liliana Aguilar-Marcelino
- National Center for Disciplinary Research in Animal Health and Safety (INIFAP), Km 11 Federal Road Cuernavaca-Cuautla, Jiutepec 62550, MR, Mexico; (C.R.B.-G.); (G.S.C.-R.)
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Åhlen PA, Sjöberg G, Stéen M. Parasitic fauna of Eurasian beavers (Castor fiber) in Sweden (1997-1998). Acta Vet Scand 2021; 63:23. [PMID: 34078419 PMCID: PMC8176557 DOI: 10.1186/s13028-021-00588-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 05/16/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The parasitic fauna of beavers (Castor fiber and C. canadensis) has been well studied in many parts of their respective areas of distribution. In Scandinavia there have, however, been limited investigations conducted on the parasites of beavers in recent times. The present study is the first quantitative survey of parasites on beavers living in Sweden and elsewhere in Scandinavia. We investigated the parasitic fauna of the Eurasian beaver (C. fiber) in a North-South gradient in Sweden. The aim of the study was to investigate parasite distribution and prevalence in particular, related to average yearly air temperature and different age groups of beavers. A total of 30 beavers were sampled at eight localities, spanning a 720 km North-South gradient during the springs of 1997 and 1998. RESULTS Five parasite taxa were identified. Four of these were present in all of the examined beavers, Stichorchis subtriquetrus (trematode), Travassosius rufus (nematode), Platypsyllus castoris (coleopteran), and Schizocarpus spp. (arachnid). A higher number of new infections of S. subtriquetrus, and more adults of T. rufus, were seen in beavers in southern Sweden where temperatures are higher. One-year old beavers had a higher infestation of S. subtriquetrus, but not of T. rufus, than older individuals. CONCLUSIONS The parasite fauna of Swedish beavers mirrored the impoverished parasite fauna of the original Norwegian population, and the high prevalence of parasites could be due to low major histocompatibility complex (MHC) polymorphism. Young beavers had a higher load of trematodes, probably depending on behavioural and ecological factors. Warmer temperatures in southern localities likely contributed to increased endoparasite loads.
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Affiliation(s)
- Per-Arne Åhlen
- Department of Wildlife, Fish and Environmental Studies, Faculty of Forest Sciences, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
- Present Address: Swedish Association for Hunting and Wildlife Management, Öster Malma, 611 91 Nyköping, Sweden
| | - Göran Sjöberg
- Department of Wildlife, Fish and Environmental Studies, Faculty of Forest Sciences, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
| | - Margareta Stéen
- Department of Anatomy, Physiology and Biochemistry, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, PO. Box 7011, 750 07 Uppsala, Sweden
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Teixeira JC, Huber CD. The inflated significance of neutral genetic diversity in conservation genetics. Proc Natl Acad Sci U S A 2021; 118:e2015096118. [PMID: 33608481 PMCID: PMC7958437 DOI: 10.1073/pnas.2015096118] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The current rate of species extinction is rapidly approaching unprecedented highs, and life on Earth presently faces a sixth mass extinction event driven by anthropogenic activity, climate change, and ecological collapse. The field of conservation genetics aims at preserving species by using their levels of genetic diversity, usually measured as neutral genome-wide diversity, as a barometer for evaluating population health and extinction risk. A fundamental assumption is that higher levels of genetic diversity lead to an increase in fitness and long-term survival of a species. Here, we argue against the perceived importance of neutral genetic diversity for the conservation of wild populations and species. We demonstrate that no simple general relationship exists between neutral genetic diversity and the risk of species extinction. Instead, a better understanding of the properties of functional genetic diversity, demographic history, and ecological relationships is necessary for developing and implementing effective conservation genetic strategies.
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Affiliation(s)
- João C Teixeira
- School of Biological Sciences, The University of Adelaide, Adelaide, 5005 SA, Australia;
- Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, The University of Adelaide, Adelaide, 5005 SA, Australia
| | - Christian D Huber
- School of Biological Sciences, The University of Adelaide, Adelaide, 5005 SA, Australia;
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Arsenopoulos KV, Fthenakis GC, Katsarou EI, Papadopoulos E. Haemonchosis: A Challenging Parasitic Infection of Sheep and Goats. Animals (Basel) 2021; 11:ani11020363. [PMID: 33535656 PMCID: PMC7912824 DOI: 10.3390/ani11020363] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/23/2021] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
The paper reviews the challenges about haemonchosis-a significant and common parasitic infection of small ruminants. Haemonchus contortus is a highly pathogenic parasite that localises in the abomasum of affected animals and exerts its pathogenicity by blood-sucking activity, adversely affecting the health and productivity of animals. The first challenge is the uneven distribution of the infection globally, this being more prevalent in tropical and subtropical and warm temperate and summer rainfall regions than in cool and cold temperate and arid regions; hence, this leads in differences in the approaches required for its control. Another challenge is the widespread presence of Haemonchus strains resistant to the various anthelmintics available: Benzimidazoles, imidazothiazoles, macrocyclic lactones, closantel and monepantel, which makes the control of the infection difficult. The third challenge refers to the difficulty of diagnosing the disease, given that field evidence can provide suspicion about the infection, which needs to be subsequently confirmed by laboratory tests through parasitological or molecular techniques. The final challenge relates to the difficulties in the control of the infection and the necessity to use pharmaceutical products cautiously and with a planned approach, to avoid further development of anthelmintic resistance, also given that use of a recently licenced vaccine is not widespread. In conclusion, at the moment, we should be concerned, but not worried, about this infection, and apply correctly the appropriate health management plans.
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Affiliation(s)
- Konstantinos V. Arsenopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - George C. Fthenakis
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (G.C.F.); (E.I.K.)
| | - Eleni I. Katsarou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; (G.C.F.); (E.I.K.)
| | - Elias Papadopoulos
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Correspondence:
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Carlson CJ, Burgio KR, Dougherty ER, Phillips AJ, Bueno VM, Clements CF, Castaldo G, Dallas TA, Cizauskas CA, Cumming GS, Doña J, Harris NC, Jovani R, Mironov S, Muellerklein OC, Proctor HC, Getz WM. Parasite biodiversity faces extinction and redistribution in a changing climate. SCIENCE ADVANCES 2017; 3:e1602422. [PMID: 28913417 PMCID: PMC5587099 DOI: 10.1126/sciadv.1602422] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 08/08/2017] [Indexed: 05/07/2023]
Abstract
Climate change is a well-documented driver of both wildlife extinction and disease emergence, but the negative impacts of climate change on parasite diversity are undocumented. We compiled the most comprehensive spatially explicit data set available for parasites, projected range shifts in a changing climate, and estimated extinction rates for eight major parasite clades. On the basis of 53,133 occurrences capturing the geographic ranges of 457 parasite species, conservative model projections suggest that 5 to 10% of these species are committed to extinction by 2070 from climate-driven habitat loss alone. We find no evidence that parasites with zoonotic potential have a significantly higher potential to gain range in a changing climate, but we do find that ectoparasites (especially ticks) fare disproportionately worse than endoparasites. Accounting for host-driven coextinctions, models predict that up to 30% of parasitic worms are committed to extinction, driven by a combination of direct and indirect pressures. Despite high local extinction rates, parasite richness could still increase by an order of magnitude in some places, because species successfully tracking climate change invade temperate ecosystems and replace native species with unpredictable ecological consequences.
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Affiliation(s)
- Colin J. Carlson
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kevin R. Burgio
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06268, USA
| | - Eric R. Dougherty
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Anna J. Phillips
- Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA
| | - Veronica M. Bueno
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06268, USA
| | - Christopher F. Clements
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Giovanni Castaldo
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Tad A. Dallas
- Environmental Science and Policy, University of California, Davis, Davis, CA 95616, USA
| | - Carrie A. Cizauskas
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Graeme S. Cumming
- ARC Centre of Excellence in Coral Reef Studies, James Cook University, Townsville, Queensland 4811, Australia
| | - Jorge Doña
- Department of Evolutionary Ecology, Estación Biológica de Doñana (CSIC), Americo Vespucio s/n, E-41092 Sevilla, Spain
| | - Nyeema C. Harris
- Ecology and Evolutionary Biology, University of Michigan, 830 North University Avenue, Ann Arbor, MI 48109, USA
| | - Roger Jovani
- Department of Evolutionary Ecology, Estación Biológica de Doñana (CSIC), Americo Vespucio s/n, E-41092 Sevilla, Spain
| | - Sergey Mironov
- Zoological Institute, Russian Academy of Sciences, Universitetskaya Embankment 1, Saint Petersburg 199034, Russia
| | - Oliver C. Muellerklein
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Heather C. Proctor
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada
| | - Wayne M. Getz
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, Berkeley, CA 94720, USA
- School of Mathematical Sciences, University of KwaZulu-Natal, Durban, South Africa
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12
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Yadav A, Panadero R, Katoch R, Godara R, Cabanelas E. Myiasis of domestic and wild ruminants caused by Hypodermatinae in the Mediterranean and Indian subcontinent. Vet Parasitol 2017; 243:208-218. [DOI: 10.1016/j.vetpar.2017.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 07/01/2017] [Accepted: 07/08/2017] [Indexed: 11/28/2022]
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13
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Patterns and processes influencing helminth parasites of Arctic coastal communities during climate change. J Helminthol 2017; 91:387-408. [DOI: 10.1017/s0022149x17000232] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractThis review analyses the scarce available data on biodiversity and transmission of helminths in Arctic coastal ecosystems and the potential impact of climate changes on them. The focus is on the helminths of seabirds, dominant parasites in coastal ecosystems. Their fauna in the Arctic is depauperate because of the lack of suitable intermediate hosts and unfavourable conditions for species with free-living larvae. An increasing proportion of crustaceans in the diet of Arctic seabirds would result in a higher infection intensity of cestodes and acanthocephalans, and may also promote the infection of seabirds with non-specific helminths. In this way, the latter may find favourable conditions for colonization of new hosts. Climate changes may alter the composition of the helminth fauna, their infection levels in hosts and ways of transmission in coastal communities. Immigration of boreal invertebrates and fish into Arctic seas may allow the circulation of helminths using them as intermediate hosts. Changing migratory routes of animals would alter the distribution of their parasites, facilitating, in particular, their trans-Arctic transfer. Prolongation of the seasonal ‘transmission window’ may increase the parasitic load on host populations. Changes in Arctic marine food webs would have an overriding influence on the helminths’ circulation. This process may be influenced by the predicted decreased of salinity in Arctic seas, increased storm activity, coastal erosion, ocean acidification, decline of Arctic ice, etc. Greater parasitological research efforts are needed to assess the influence of factors related to Arctic climate change on the transmission of helminths.
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Retschnig G, Williams GR, Schneeberger A, Neumann P. Cold Ambient Temperature Promotes Nosema spp. Intensity in Honey Bees (Apis mellifera). INSECTS 2017; 8:E20. [PMID: 28208761 PMCID: PMC5371948 DOI: 10.3390/insects8010020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/13/2016] [Accepted: 01/20/2017] [Indexed: 11/19/2022]
Abstract
Interactions between parasites and environmental factors have been implicated in the loss of managed Western honey bee (=HB, Apis mellifera) colonies. Although laboratory data suggest that cold temperature may limit the spread of Nosema ceranae, an invasive species and now ubiquitous endoparasite of Western HBs, the impact of weather conditions on the distribution of this microsporidian in the field is poorly understood. Here, we conducted a survey for Nosema spp. using 18 Swiss apiaries (four colonies per apiary) over a period of up to 18 months. Samples consisting of 60 workers were collected monthly from each colony to estimate Nosema spp. intensity, i.e., the number of spores in positive samples using microscopy. Ambient apiary temperature was measured daily to estimate the proportion of days enabling HB flight (>10 °C at midday). The results show that Nosema spp. intensities were negatively correlated with the proportion of days enabling HB flight, thereby suggesting a significant and unexpected positive impact of cold ambient temperature on intensities, probably via regulation of defecation opportunities for infected hosts.
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Affiliation(s)
- Gina Retschnig
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3003, Switzerland.
- Agroscope, Swiss Bee Research Centre, Bern 3003, Switzerland.
| | - Geoffrey R Williams
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3003, Switzerland.
- Agroscope, Swiss Bee Research Centre, Bern 3003, Switzerland.
- Department of Entomology & Plant Pathology, Auburn University, Auburn, AL 36849, USA.
| | - Annette Schneeberger
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3003, Switzerland.
| | - Peter Neumann
- Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern 3003, Switzerland.
- Agroscope, Swiss Bee Research Centre, Bern 3003, Switzerland.
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15
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Helminth community structure in two species of arctic-breeding waterfowl. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2016; 5:263-272. [PMID: 27709067 PMCID: PMC5040642 DOI: 10.1016/j.ijppaw.2016.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/13/2016] [Accepted: 09/17/2016] [Indexed: 11/28/2022]
Abstract
Climate change is occurring rapidly at high latitudes, and subsequent changes in parasite communities may have implications for hosts including wildlife and humans. Waterfowl, in particular, harbor numerous parasites and may facilitate parasite movement across broad geographic areas due to migratory movements. However, little is known about helminth community structure of waterfowl at northern latitudes. We investigated the helminth communities of two avian herbivores that breed at high latitudes, Pacific black brant (Branta bernicla nigricans), and greater white-fronted geese (Anser albifrons), to examine effects of species, geographic area, age, and sex on helminth species richness, aggregation, prevalence, and intensity. We collected 83 and 58 black brant and white-fronted geese, respectively, from Arctic and Subarctic Alaska July–August 2014. We identified 10 known helminth species (Amidostomum anseris, Amidostomum spatulatum, Drepanidotaenia lanceolata, Epomidiostomum crami, Heterakis dispar, Notocotylus attenuatus, Tetrameres striata, Trichostrongylus tenuis, Tschertkovilepis setigera, and Wardoides nyrocae) and 1 previously undescribed trematode. All geese sampled were infected with at least one helminth species. All helminth species identified were present in both age classes and species, providing evidence of transmission at high latitudes and suggesting broad host susceptibility. Also, all but one helminth species were present at both sites, suggesting conditions are suitable for transmission across a large latitudinal/environmental gradient. Our study provides important baseline information on avian parasites that can be used to evaluate the effects of a changing climate on host-parasite distributions. We collected two goose species in two high-latitude locations to quantify helminths. We identified 10 helminths and 1 previously unidentified trematode in two hosts. Waterfowl helminths are readily transmitted in the Arctic and Subarctic. Arctic-breeding geese have high helminth prevalence rates and infection intensities.
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16
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The Pathophysiology, Ecology and Epidemiology of Haemonchus contortus Infection in Small Ruminants. ADVANCES IN PARASITOLOGY 2016; 93:95-143. [PMID: 27238004 DOI: 10.1016/bs.apar.2016.02.022] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The parasitic nematode Haemonchus contortus occurs commonly in small ruminants, and it is an especially significant threat to the health and production of sheep and goats in tropical and warm temperate zones. The main signs of disease (haemonchosis) relate to its blood-feeding activity, leading to anaemia, weakness and frequently to deaths, unless treatment is provided. Due to the high biotic potential, large burdens of H. contortus may develop rapidly when environmental conditions favour the free-living stages, and deaths may occur with little prior warning. More chronic forms of haemonchosis, resulting in reduced animal production and eventually deaths, occur with smaller persistent infections, especially in situations of prolonged, poor nutrition. The global distribution of the main haemonchosis-endemic zones is consistent with the critical requirements of the egg and larval stages of H. contortus for moisture and moderate to relatively warm temperatures, but the seasonal propensity for hypobiosis (inhibition of the fourth-stage larvae within the host) largely explains the common, though sporadic, outbreaks of haemonchosis in arid and colder environments. The wide climatic distribution may also reflect the adaptation of local isolates to less favourable ecological conditions, while an apparent increase in the prevalence of outbreaks in environments not previously considered endemic for haemonchosis - especially cold, temperate zones - may be attributable to climatic changes. Although the risk of haemonchosis varies considerably on a local level, even where H. contortus is endemic, the extensive range of ecological investigations provides a sound basis for predictions of the relative geographical and seasonal risk in relation to climatic conditions.
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Selstad Utaaker K, Robertson LJ. Climate change and foodborne transmission of parasites: A consideration of possible interactions and impacts for selected parasites. Food Res Int 2015. [DOI: 10.1016/j.foodres.2014.06.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Afternoon shedding of a new species of Isospora (Apicomplexa) in the endangered Regent Honeyeater (Xanthomyza phrygia). Parasitology 2014; 138:713-24. [PMID: 24650932 DOI: 10.1017/s0031182011000126] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The Regent Honeyeater (Xanthomyza phyrigia) is an endangered Australian bird species. Breeding populations have been established at Australian zoos in support of re-introduction programmes. This species is the host of a new species of Isospora (Apicomplexa). Oocysts are spherical, 25·8 (22·5-28·75) by 23·8 (20-26·25) μm with a colourless to pale yellow smooth wall undergoing rapid exogenous sporulation, 90% sporulated oocysts in 8 h at 20°C. Each oocyst contains 1 polar granule. Sporocysts are ovoid, 18·67 (17-19) by 9·49 (9-10) μm with a flat Stieda body and spherical substieda body devoid of a hyaline body. The asexual stages and sexual phase is within the enterocytes of the duodenum and jejunum. Faeces collected in the morning (AM, n=84) and in the afternoon (PM, n=90) revealed significant diurnal periodicity in oocyst shedding; 21% (18 of 84) of the AM were positive with the mean of 499 oocysts.g-1 compared to the PM with 91% (82 of 90) bird faeces positive with the mean of 129 723 oocysts.g-1. Therefore, parasite checks for these birds should be carried out in the afternoon to obtain an accurate result. The ecological significance of the high parasite burden in captive birds requires further investigation and comparison to the wild counterparts.
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Seymour J, Horstmann-Dehn L, Rosa C, Lopez J. Occurrence and genotypic analysis of Trichinella species in Alaska marine-associated mammals of the Bering and Chukchi seas. Vet Parasitol 2014; 200:153-64. [DOI: 10.1016/j.vetpar.2013.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 11/13/2013] [Accepted: 11/18/2013] [Indexed: 10/26/2022]
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20
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Pickles RSA, Thornton D, Feldman R, Marques A, Murray DL. Predicting shifts in parasite distribution with climate change: a multitrophic level approach. GLOBAL CHANGE BIOLOGY 2013; 19:2645-2654. [PMID: 23666800 DOI: 10.1111/gcb.12255] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 04/08/2013] [Indexed: 06/02/2023]
Abstract
Climate change likely will lead to increasingly favourable environmental conditions for many parasites. However, predictions regarding parasitism's impacts often fail to account for the likely variability in host distribution and how this may alter parasite occurrence. Here, we investigate potential distributional shifts in the meningeal worm, Parelaphostrongylosis tenuis, a protostrongylid nematode commonly found in white-tailed deer in North America, whose life cycle also involves a free-living stage and a gastropod intermediate host. We modelled the distribution of the hosts and free-living larva as a complete assemblage to assess whether a complex trophic system will lead to an overall increase in parasite distribution with climate change, or whether divergent environmental niches may promote an ecological mismatch. Using an ensemble approach to climate modelling under two different carbon emission scenarios, we show that whereas the overall trend is for an increase in niche breadth for each species, mismatches arise in habitat suitability of the free-living larva vs. the definitive and intermediate hosts. By incorporating these projected mismatches into a combined model, we project a shift in parasite distribution accounting for all steps in the transmission cycle, and identify that overall habitat suitability of the parasite will decline in the Great Plains and southeastern USA, but will increase in the Boreal Forest ecoregion, particularly in Alberta. These results have important implications for wildlife conservation and management due to the known pathogenicity of parelaphostrongylosis to alternate hosts including moose, caribou and elk. Our results suggest that disease risk forecasts which fail to consider biotic interactions may be overly simplistic, and that accounting for each of the parasite's life stages is key to refining predicted responses to climate change.
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Affiliation(s)
- Rob S A Pickles
- Department of Biology, Trent University, Peterborough, ON, Canada.
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21
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Lal A, Baker MG, Hales S, French NP. Potential effects of global environmental changes on cryptosporidiosis and giardiasis transmission. Trends Parasitol 2013; 29:83-90. [DOI: 10.1016/j.pt.2012.10.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 10/31/2012] [Accepted: 10/31/2012] [Indexed: 10/27/2022]
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22
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Parasites in ungulates of Arctic North America and Greenland: a view of contemporary diversity, ecology, and impact in a world under change. ADVANCES IN PARASITOLOGY 2012; 79:99-252. [PMID: 22726643 DOI: 10.1016/b978-0-12-398457-9.00002-0] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Parasites play an important role in the structure and function of arctic ecosystems, systems that are currently experiencing an unprecedented rate of change due to various anthropogenic perturbations, including climate change. Ungulates such as muskoxen, caribou, moose and Dall's sheep are also important components of northern ecosystems and are a source of food and income, as well as a focus for maintenance of cultural traditions, for northerners. Parasites of ungulates can influence host health, population dynamics and the quality, quantity and safety of meat and other products of animal origin consumed by people. In this article, we provide a contemporary view of the diversity of nematode, cestode, trematode, protozoan and arthropod parasites of ungulates in arctic and subarctic North America and Greenland. We explore the intricate associations among host and parasite assemblages and identify key issues and gaps in knowledge that emerge in a regime of accelerating environmental transition.
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