Helminthfauna of road-killed cougars (Puma concolor) from the Northeastern Region of São Paulo State, Brazil

Benatti, Danise; Santi, Mariele de; Werther, Karin; Tebaldi, José Hairton; Hoppe, Estevam Guilherme Lux

doi:10.1590/s1984-29612021008

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…The genome size of E. granulosus was also recently estimated in 151.6 Mb, with 11,325 genes, and 9 pairs of chromosomes [47], therefore, the genome size of E. oligarthra is smaller, and almost half-size that of E. granulosus. The life cycle of E. oligarthra was also completed in the Upper Parana Atlantic Forest, Argentina, by microscopic, histological, and molecular techniques (PCR and nucleotide sequence of E. oligarthra DNA), and concluded that the agouti (D. azarae) is the main intermediate host (prey), and the felines Ocelot (Leopardus pardalis) and the puma (Felis concolor) are the definitive hosts of E. oligarthra [1,32,48]. DOI: http://dx.doi.org/10.5772/intechopen.106163…”

Section: Resultsmentioning

confidence: 99%

Neotropical Echinococcosis: A Review

Meléndez¹

2022

Zoonosis of Public Health Interest

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Echinococcus vogeli (Rausch and Berstein, 1972) and Echinococcus oligarthra (Diesing, 1863) (Cestoda: Taeniidae) are the only two species known of Neotropical tapeworms, which cause Echinococcosis Polycystic (EP) and Echinococcosis Unicystic (EU), respectively, in humans and in wild rodents from Central and South America. This review applied a meta-analysis on published research about these diseases during the last decade (2010–2020) with the aim of finding out the new human cases reported on that decade on EP and EU. Several new human cases have been published in these 10 years, and important findings have been carried out on the phylogenetic taxonomy, on the genome of E. oligarthra, and on new molecular diagnostic techniques and imagenology applied upon this two neotropical echinococcosis, in particular in Argentina and Brazil. Finally, the life cycle of both Echinococcus species appears to be in a dynamic activity, apparently there is an expansion of both zoonotic diseases moving down to Southern zones of Argentina; therefore, a program of epidemiological surveillance on EP and EU is proposed to be carried out in those Patagonic regions.

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Section: Resultsmentioning

confidence: 99%

Neotropical Echinococcosis: A Review

Meléndez¹

2022

Zoonosis of Public Health Interest

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“…Ocelots have been recorded in a great variety of habitats, from heavily logged and fragmented forests, to early and late successional forests, the outskirts of major cities and towns, disturbed scrub/ (2021) revealed that the puma habitat has an association with forest vegetation, followed by pasture with shrubs. Road kills are important factors linked to the reduction of the cougar population in several areas (Azevedo et al 2013, Benatti 2021. Titi monkeys occur in the Brazilian states of Rio de Janeiro, São Paulo, and Minas Gerais.…”

Section: Resultsmentioning

confidence: 99%

Using Self-Organizing Maps to find spatial relationships between wildlife-vehicle crashes and land use classes

Tsuda

Carneiro

Quintanilha

2022

An. Acad. Bras. Ciênc.

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The construction and expansion of roads cause significant impacts on the environment. The main potential impacts to biotic environment are vegetation suppression, reduction of the amount and composition of animal distribution due to forest fragmentation and increasing risks of animal (domestic and wildlife) vehicle collisions. The objective of this work was to establish a relationship between the different spatial patterns in wildlife-vehicle crash, by using spatial analysis and machine learning tools. Self-Organizing Maps (SOM), an artificial neural network (ANN), was selected to reorganize the multi-dimensional data according to the similarity between them. The results of the spatial pattern analysis were important to perceive that the point data pattern varies from an animal type to another. The events occur spatially clustered and are not uniformly distributed along the highway. SOM was able to analyze the relationship between multiple variables, linear and non-linear, such as ecological data, and established distinct spatial patterns per each animal type. In the studied area, most of the wildlife was run over very close to forest area and water bodies, and not so close to sugarcane fields, forestry and built environment. A considerable part of the wildlife-vehicle collisions occurred in areas with diverse landscape.

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“…The acanthocephalan genus Oncicola , consisting of twenty-four recognized species, has been circulating in South American felines for almost 9000 years [ 53 , 54 ]. Some scattered reports of O. canis, O. oncicola , and O. venezualensis have been reported in jaguars, ocelots, pumas, and margays across the American continent [ 13 , 55 , 56 , 57 , 58 , 59 , 60 ]. We report this parasite genus in free-ranging jaguars and ocelots in Colombia for the first time since 1968 [ 61 ].…”

Section: Discussionmentioning

confidence: 99%

Intestinal Parasites of Neotropical Wild Jaguars, Pumas, Ocelots, and Jaguarundis in Colombia: Old Friends Brought Back from Oblivion and New Insights

et al. 2021

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Neotropical wild felids (NWF) are obligate carnivore species present in Central and South America, and some are considered endangered due to constantly decreasing populations. NWF can become infected by a wide range of protozoan and metazoan parasites, some of them affecting their health conditions and others having anthropozoonotic relevance. Parasitological studies on NWF are still very scarce, and most data originated from dead or captive animals. On this account, the current study aimed to characterize gastrointestinal parasites of free-ranging jaguars (Panthera onca), pumas (Puma concolor), ocelots (Leopardus pardalis), and jaguarundis (Herpailurus yagouaroundi), i.e., four out of six NWF species endemic to Colombia. Fecal samples from jaguars (n = 10) and ocelots (n = 4) were collected between 2012 and 2017 as part of the Jaguar Corridor Initiative from six geographic locations in Colombia. In addition, cestode specimens were obtained during puma and jaguarundi necropsies. Scat samples were processed by standardized sodium acetate-acetic acid-formalin (SAF), sedimentation, and flotation techniques and by carbol fuchsin-stained fecal smears. Morphological evaluation of feces showed the presence of one cestode (Spirometra sp.), a nematode (Toxocara cati), an acanthocephalan (Oncicola sp.), and one cyst-forming coccidian (Cystoisospora-like oocysts). Feces oocysts were submitted to a Toxoplasma gondii-specific PCR for species identification, but no product was amplified. The cestodes isolated from a puma and jaguarundi were molecularly characterized by sequencing cytochrome c oxidase subunit I, identifying them as Taenia omissa and as a T. omissa sister lineage, respectively. These results collectively demonstrate the potential role of NWF as natural reservoir hosts for neglected zoonotic parasites (e.g., Spirometra sp., T. cati) and highlight their possible role in parasite transmission to human communities. Due to public health concerns, the occurrence of these parasites should be monitored in the future for appropriate zoonotic management practices in conservation strategies and wild felid health management programs.

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Helminthfauna of road-killed cougars (Puma concolor) from the Northeastern Region of São Paulo State, Brazil

Cited by 6 publications

References 22 publications

Neotropical Echinococcosis: A Review

Neotropical Echinococcosis: A Review

Using Self-Organizing Maps to find spatial relationships between wildlife-vehicle crashes and land use classes

Intestinal Parasites of Neotropical Wild Jaguars, Pumas, Ocelots, and Jaguarundis in Colombia: Old Friends Brought Back from Oblivion and New Insights

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