Helminth parasites of Canada lynx (Felis canadensis) from northern Ontario

1986 ◽  
Vol 64 (2) ◽  
pp. 358-364 ◽  
Author(s):  
J. D. Smith ◽  
E. M. Addison ◽  
D. G. Joachim ◽  
L. M. Smith ◽  
N. W. S. Quinn
Keyword(s):  
Host Population ◽  
Helminth Parasites ◽  
Toxocara Cati ◽  
Northern Ontario ◽  
Canada Lynx ◽  
Host Condition ◽  
Forest Regions ◽  
Capillaria Aerophila ◽  
The Common ◽  
Toxascaris Leonina

Six helminths were common in lynx (Felis canadensis) throughout northern Ontario: Troglostrongylus wilsoni (Stough, 1953) Sarmiento &Stough, 1956 in the lung (54% of 127 infected), Cylicospirura felineus (Chandler, 1925) Sandground, 1932 in the stomach (91% of 360), Toxascaris leonina (von Linstow, 1902) and Toxocara cati (Schrank, 1788) in the stomach and intestine(97% and 22% of 274, respectively), and Taenia laticollis Rudolphi, 1819, and Taenia rileyi Loewen, 1929 in the intestine (94% and 47% of 275, respectively). Only Toxascaris leonina is transmitted by both lynx and canids in northern Ontario. Lynx is the only definitive host of the other common parasites. Seven helminths usually found in canids occurred infrequently in lynx: Alaria marcianae (LaRue, 1917) Walton, 1949 and immature Taenia pisiformis (Bloch, 1780) Gmelin, 1790 in 4% of those examined; and Capillaria aerophila (Creplin, 1839) Travassos, 1915, Physaloptera rara Hall &Wigdor, 1918, Ancylostoma caninum (Ercolani, 1859), Uncinaria stenocephalia (Railliet, 1884), and Taenia serialis (Gervais, 1847) Baillet, 1863 in one to three lynx each. Abundances of the common parasites varied only slightly among five forest regions, and did not differ between male and female lynx or among lynx older than kits. Cylicospirura felineus and Taenia rileyi were less abundant in kits, and Taenia laticollis and Toxocara cati tended to be more abundant in kits than in older lynx. Host condition and numbers of many of the common helminths tended to be positively correlated, but the inclusion of kits affected the result. The few helminth species established in lynx and their apparent uniform distribution in the host population may reflect the dominance of snowshoe hare in the diet.

PARASITES OF THE CANADA LYNX, FELIS (LYNX) CANADENSIS (KERR)

1966 ◽  
Vol 44 (4) ◽  
pp. 499-509 ◽  
Author(s):  
C. G. van Zyll de Jong
Keyword(s):  
Lynx Canadensis ◽  
Toxocara Cati ◽  
Canada Lynx ◽  
Large Numbers ◽  
Toxascaris Leonina

Monopsyllus vison was collected from 1 of 19 lynxes examined for ectoparasites. Taenia laticollis and T. rileyi were the most frequent cestodes in 113 lynxes examined for endoparasites. Scoleces of T. pisiformis were often present in large numbers, but no segmented specimens were encountered. Scoleces of Multiceps sp. were found twice. One trematode, Alaria (Paralaria) sp., was collected. The nematodes Toxascaris leonina, Cylicospirura subaequalis, and Troglostrongylus wilsoni were common, and Toxocara cati and Physaloptera praeputialis occurred less frequently.

Helminth parasites of the endangered Iberian lynx (Lynx pardinus) and sympatric carnivores

2007 ◽  
Vol 81 (4) ◽  
pp. 377-380 ◽  
Author(s):  
Javier Millán ◽  
Joan Carles Casanova
Keyword(s):  
Lynx Lynx ◽  
Helminth Parasites ◽  
Toxocara Cati ◽  
Iberian Lynx ◽  
Lynx Pardinus ◽  
Feral Cats ◽  
Sierra Morena ◽  
Sympatric Carnivores ◽  
Adult Cats ◽  
Herpestes Ichneumon

AbstractFive critically endangered Iberian lynxes (Lynx pardinus) and 35 other sympatric carnivores (19 feral catsFelis catus, 12 Egyptian mongoosesHerpestes ichneumon, and 4 common genetsGenetta genetta) were analysed for helminths in Sierra Morena and Doñana area (southern Spain).Ancylostoma tubaeforme, which was believed to be harmful for lynx cubs according to a previous study, was present in the only lynx and in 53% of cats analysed in Doñana (80% in adult cats). Other species shared in both areas wereToxocara cati(1 lynx, 31% of cats),Joyeuxiella pasqualei(1 lynx, 21% of cats) andMesocestoidessp. (2 lynxes, 5% of cats). Only one mongoose was parasitized, harbouring larvae of two acantocephalan species not previously reported in the Iberian peninsula (Centrorhynchus(Sphaerirostris)lanceaandCentrorhynchus(Longirostris)undulatus). Feral cats may be a reservoir for hookworms and other helminths affecting the Iberian lynx. In contrast, mongooses and genets may not play a role in the epidemiology of these species.

Gastrointestinal helminth parasites of the common wallaroo or euro, Osphranter robustus (Gould) (Marsupialia: Macropodidae) from Australia

2020 ◽  
Vol 94 ◽  
Author(s):  
I. Beveridge
Keyword(s):  
Parasite Species ◽  
Parasite Fauna ◽  
Eastern Coast ◽  
Published Data ◽  
Helminth Parasites ◽  
Northern Australia ◽  
Gastrointestinal Helminth ◽  
High Prevalence ◽  
The Common ◽  
Specific Species

Abstract The gastrointestinal helminth parasites of 170 common wallaroos or euros, Osphranter robustus (Gould), collected from all mainland states in which the species occurs as well as the Northern Territory, are presented, including previously published data. A total of 65 species of helminths were encountered, including four species of anoplocephalid cestodes found in the bile ducts and small intestine, and 61 species of strongylid nematodes, all but two of which occurring in the stomach, and with the remainder occurring in the terminal ileum, caecum and colon. Among the mainland subspecies of O. robustus, 52 species of helminths were encountered in O. r. robustus, compared with 30 species in O. r. woodwardi and 35 species in O. r. erubescens. Of the parasite species encountered, only 17 were specific to O. robustus, the remaining being shared with sympatric host species. Host-specific species or species occurring in O. robustus at a high prevalence can be classified as follows: widely distributed; restricted to northern Australia; restricted to the northern wallaroo, O. r. woodwardi; found only in the euro, O. r. erubescens; found essentially along the eastern coast of Australia, primarily in O. r. robustus; and species with highly limited regional distributions. The data currently available suggest that the acquisition of a significant number of parasites is due to co-grazing with other macropodids, while subspeciation in wallaroos as well as climatic variables may have influenced the diversification of the parasite fauna.

Observations on the Incidence ofToxocaraandToxascarisin Dogs and Cats from the London Area

1965 ◽  
Vol 39 (2-3) ◽  
pp. 251-256 ◽  
Author(s):  
J. N. Oldham
Keyword(s):  
Toxocara Canis ◽  
Toxocara Cati ◽  
Toxascaris Leonina

Using an autopsy method of examination, an incidence of infection withToxocara canisin 250 dogs was 6·4% and withToxascaris leoninait was 2%. Of 100 cats examined, 8% harbouredToxocara catiand 3%Toxascaris leonina. Other British records concerning the incidence of the dog parasites are discussed and attention is drawn to certain reservations that must be placed on their acceptance.

Intraspecific variation between the ITS sequences of Toxocara canis, Toxocara cati and Toxascaris leonina from different host species in south-western Poland

2012 ◽  
Vol 87 (4) ◽  
pp. 432-442 ◽  
Author(s):  
R. Fogt-Wyrwas ◽  
H. Mizgajska-Wiktor ◽  
J. Pacoń ◽  
W. Jarosz
Keyword(s):  
Intraspecific Variation ◽  
Intraspecific Variability ◽  
Toxocara Canis ◽  
Point Of View ◽  
Its Sequences ◽  
Parasitic Nematodes ◽  
Toxocara Cati ◽  
Evolutionary Point ◽  
Geographical Locations ◽  
Toxascaris Leonina

AbstractSome parasitic nematodes can inhabit different definitive hosts, which raises the question of the intraspecific variability of the nematode genotype affecting their preferences to choose particular species as hosts. Additionally, the issue of a possible intraspecific DNA microheterogeneity in specimens from different parts of the world seems to be interesting, especially from the evolutionary point of view. The problem was analysed in three related species – Toxocara canis, Toxocara cati and Toxascaris leonina – specimens originating from Central Europe (Poland). Using specific primers for species identification, internal transcribed spacer (ITS)-1 and ITS-2 regions were amplified and then sequenced. The sequences obtained were compared with sequences previously described for specimens originating from other geographical locations. No differences in nucleotide sequences were established in T. canis isolated from two different hosts (dogs and foxes). A comparison of ITS sequences of T. canis from Poland with sequences deposited in GenBank showed that the scope of intraspecific variability of the species did not exceed 0.4%, while in T. cati the differences did not exceed 2%. Significant differences were found in T. leonina, where ITS-1 differed by 3% and ITS-2 by as much as 7.4% in specimens collected from foxes in Poland and dogs in Australia. Such scope of differences in the nucleotide sequence seems to exceed the intraspecific variation of the species.

scholarly journals Intestinal helminths in Iberian wolves (Canis lupus signatus) from Northwest Spain

2018 ◽  
Vol 6 (1) ◽  
pp. 106-111 ◽  
Author(s):  
Sara Muñoz ◽  
Pedro Luis Ramos ◽  
Elena Carretón ◽  
Alicia Diosdado ◽  
Javier González-Miguel ◽  
...  
Keyword(s):  
Canis Lupus ◽  
Western Europe ◽  
Toxocara Canis ◽  
Helminth Parasites ◽  
Color Structure ◽  
Flotation Technique ◽  
Feeding And Social Behavior ◽  
Trichuris Vulpis ◽  
Canis Lupus Signatus ◽  
Toxascaris Leonina

Background: We present a study about helminth parasites in wolf (Canis lupus signatus) from Sierra de la Culebra, a protected area in the Northwest of Spain, where is the largest population of wolves of the Spanish territory and one of the largest in Western Europe. Materials and Methods: To this aim, 93 fecal samples were collected during May and June of 2013 using 33% zinc sulphate flotation technique and classified based on their morphology, color, structure and size. Results: Parasites were present in 66.67% of the samples and classified as Eucoleus aerophilus (50.54%), Strongyloides sp. (27%), Ancylostomidae gen. sp. (19.35%), Toxocara Canis (10.75%), Taeniidae gen. sp. (9.68%), Trichuris vulpis (9.68%) and Toxascaris leonina (2.15%). Their distributions were very heterogeneous with the highest prevalence being in Northwest Spain. These differences found can be attributed to local environmental factors (ambient temperature, humidity) as well as animal feeding and social behavior. Conclusion: A wide helminthofauna is observed in the studied wolves, similar to other studies carried out in Europe (Estonia, Finland, Italy, Latvia, Poland, Portugal, Spain and Sweden). In addition, this study constitutes the first description of the presence of Strongyloides sp. in Iberian wolf in Spain.

scholarly journals Genetic analysis of Toxocara spp. in stray cats and dogs in Van province, Eastern Turkey

2018 ◽  
Vol 62 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Bekir Oguz ◽  
Nalan Ozdal ◽  
M. Serdar Deger
Keyword(s):  
Genetic Structure ◽  
Genetic Analysis ◽  
Molecular Analysis ◽  
Parasite Species ◽  
Toxocara Canis ◽  
Molecular Characteristics ◽  
Toxocara Cati ◽  
Molecular Approaches ◽  
Stray Cats ◽  
Toxascaris Leonina

AbstractIntroductionToxocara canis and Toxocara cati are roundworms of dogs and cats. The purpose of this study was to investigate the infection caused by these ascarids in cats and dogs, using microscopic and molecular analysis methods.Material and MethodsAdult ascarids were gathered from the faeces of dogs and cats in Van province, in 2015–2016. Existing keys and PCR sequencing of the ITS-2 fragment were used to identify the morphological features of the parasite species.ResultsIt was observed that out of 20 adult ascarids, 17 and 3 were found to be Toxocara canis and Toxocara cati, respectively. The ITS-2 gene region was amplified by PCR to perform molecular analysis. Genotyping indicated that the dogs and cats were infected with T. canis and T. cati, respectively, and none had Toxascaris leonina.ConclusionTo the best of our knowledge, this is the first report on the molecular characteristics of adult ascaridoid nematodes from cats and dogs in Turkey. The molecular approaches established in this study enable molecular identification and genetic structure studies of the ascaridoids.

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