Helminths Assemblage of the bare-faced ibis, Phimosus infuscatus (Lichtenstein, 1823) (Pelecaniformes: Threskiornithidae), in southern Brazil

Abstract Birds act as hosts for a variety of parasites, many of these are unreported. The literature provides scant information on the helminth fauna of Phimosus infuscatus. The presence of helminths were investigate in 28 birds from Pelotas, Capão do Leão, and Rio Grande in Rio Grande do Sul. The preparation and identification of helminths followed protocols. Prevalence (P%), mean intensity of infection (MII), and mean abundance (MA) were estimated. The following helminths were found: Hystrichis acanthocephalicus , Dioctophyme renale (larva), Porrocaecum heteropterum , Baruscapillaria sp., Aproctella carinii , Paradeletrocephalus minor, and Cyathostoma sp. (Nematoda); Echinostomatidae gen. sp., Tanaisia valida, and Athesmia sp. (Trematoda: Digenea) and Megalacanthus sp. (Cestoda). The most prevalent species were H. acanthocephalicus, P. heteropterum, Megalacanthus sp., and Echinostomatidae gen. sp. and Megalacanthus sp. had the highest MII and MA. There was a significant difference in the prevalence of H. acantocephalicus between female and male bird hosts. We report Echinostomatidae gen. sp., T. valida, Athesmia sp., Cyathostoma sp., A. carinii, P. minor, D. renale (larva), Baruscapillaria sp., and Megalacanthus sp. for the first time in P. infuscatus in Brazil.

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Phthiraptera and Gamasida Parasites of Columbina picui (Temminck) (Columbiformes: Columbidae) in the State of Rio Grande do Sul, Southern Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842012000300022 ◽

2012 ◽

Vol 72 (3) ◽

pp. 583-585 ◽

Cited By ~ 9

Author(s):

MAA. Coimbra ◽

CS. Mascarenhas ◽

G. Müller ◽

JGW. Brum

Keyword(s):

External Surface ◽

Rio Grande ◽

The State ◽

The Body ◽

The Other ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Mean Intensity ◽

First Time ◽

Ornithonyssus Bursa

Thirty-two specimens of Columbina picui (picui ground-dove) were examined, and a collection of arthropods was made by washing the external surface of the body and the nasal cavity. The species in the order Phthiraptera found and their respective prevalences, mean abundance and mean intensity were: Columbicola passerinae (84.4%; 10.3; 12.2), Hohorstiella passerinae (21.9%; 0.7; 3.1) and Physconelloides eurysema (3.1%; 0.1; 2). The gamasid mites found in the birds and their respective prevalences, mean abundance and mean intensity were: Pellonyssus marui (31.3%; 1.2; 3.9), Ornithonyssus bursa (15.6%; 0.2. ;1.2) and Mesonyssus sp. (6.3%; 0.1; 1). Columbicola passerinae, H. passerinae, P. eurysema, O. bursa, P. marui and Mesonyssus sp. were recorded for the first time infecting C. picui in Brazil. Except for O. bursa, the other species are reported for the first time in the state of Rio Grande do Sul, Brazil.

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First report of Nematomystes scapteromi (Ganzorig, Oku, Okamoto, Malgor & Kamiya, 1999) Jiménez-Ruiz & Gardner, 2003 (Nematoda, Aspidoderidae) in Scapteromys tumidus Waterhouse, 1837 (Rodentia, Sigmodontinae) from southern Brazil

Check List ◽

10.15560/11.2.1607 ◽

2015 ◽

Vol 11 (2) ◽

pp. 1607

Author(s):

Leandro Ramos Duarte ◽

Moisés Gallas ◽

Eliane Fraga da Silveira ◽

Eduardo Périco

Keyword(s):

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Morphometric Traits ◽

Mean Intensity ◽

First Report ◽

The Mean

Prior to the present study, Nematomystes scapteromi (Ganzorig, Oku, Okamoto, Malgor & Kamiya, 1999) Jiménez-Ruiz & Gardner, 2003 had been reported in Scapteromys tumidus Waterhouse, 1837 from Uruguay. Here, eight specimens of S. tumidus were collected in southern Brazil and necropsied. The nematodes encountered were determined as N. scapteromi through their morphometric traits. Prevalence was 87.5% and the mean intensity of infection of 18.3 helminths/host. This is the first report of N. scapteromi parasitizing S. tumidus in the state of Rio Grande do Sul, Brazil.

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Rhinonyssidae (Acari) in the house sparrows, Passer domesticus (Linnaeus, 1758) (Passeriformes: Passeridae), from southern Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-296120180064 ◽

2018 ◽

Vol 27 (4) ◽

pp. 597-603 ◽

Cited By ~ 1

Author(s):

Luciana Siqueira Silveira dos Santos ◽

Carolina Silveira Mascarenhas ◽

Paulo Roberto Silveira dos Santos ◽

Nara Amélia da Rosa Farias

Keyword(s):

House Sparrow ◽

Passer Domesticus ◽

Rio Grande ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

House Sparrows ◽

Mean Intensity ◽

Significant Difference ◽

Infection Parameters ◽

The City

Abstract We report the occurrence and infection parameters of two species of nasal mites in Passer domesticus (Linnaeus, 1758) (house sparrow). Nasal passages, trachea, lungs, and air sacs of 100 house sparrows captured in an urban area at the city of Pelotas, State of Rio Grande do Sul, southern Brazil, were examined with a stereomicroscope. The mite, Sternostoma tracheacolum Lawrence, 1948 was present in the trachea and/or lungs (or both) of 13 birds (13%) at a mean intensity of 6.7 mites/infected host. Ptilonyssus hirsti (Castro & Pereira, 1947) was found in the nasal cavity of 1 sparrow (1%); coinfection was not observed in this bird. There was no significant difference in the prevalence and mean intensity of infection of S. tracheacolum between male and female birds. To our knowledge, this is the first study reporting the occurrence of S. tracheacolum in P. domesticus in Brazil and the presence of P. hirsti in P. domesticus from Rio Grande do Sul, Brazil. This is the first survey to provide the infection parameters of each of these mites in house sparrows.

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New locality records for Guerrerostrongylus zetta (Travassos, 1937) Sutton & Durette-Desset, 1991 (Nematoda: Heligmonellidae) parasitizing Oligoryzomys nigripes (Olfers, 1818) (Rodentia: Sigmodontinae) from southern Brazil

Check List ◽

10.15560/12.2.1861 ◽

2016 ◽

Vol 12 (2) ◽

pp. 1861 ◽

Cited By ~ 1

Author(s):

Daniela F. de Werk ◽

Moisés Gallas ◽

Eliane F. da Silveira ◽

Eduardo Périco

Keyword(s):

Morphological Traits ◽

Rio Grande ◽

First Record ◽

The State ◽

Southeastern Brazil ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Mean Intensity

Guerrerostrongylus zetta had been found in a number of different species of rodents from northern and southeastern Brazil as well as Argentina. Between 2008 and 2010, specimens of Oligoryzomys nigripes (n = 14) were collected and necropsied. The nematodes encountered were identified as G. zetta due their morphological traits. Prevalence was 78%, with a mean intensity of infection of 5.63 helminths/host. This report fills in a lacuna in the known distribution of G. zetta, and provides the first record of this parasite in the state of Rio Grande do Sul, Brazil.

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Eimeria spp. infection in lambs from southern Brazil

Pesquisa Veterinária Brasileira ◽

10.1590/1678-5150-pvb-6745 ◽

2020 ◽

Vol 40 (11) ◽

pp. 871-874

Author(s):

Natália S. Martins ◽

Sara P. da Motta ◽

Carolina C. Santos ◽

Andrios S. Moreira ◽

Nara A.R. Farias ◽

...

Keyword(s):

High Frequency ◽

Eimeria Species ◽

Rio Grande ◽

Wide Distribution ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Sheep Industry ◽

Eimeria Spp ◽

Potential Damage ◽

First Time

ABSTRACT: Eimeria infections are common in the sheep industry worldwide. Lambs are more susceptible to coccidiosis, especially in stressful conditions, being infected by different species of the parasite. Eimeria crandallis and Eimeria ovinoidalis are considered the most pathogenic, causing reduced growth, dehydration, anorexia, and death. In this study, the frequency of Eimeria species was evaluated in lambs from the southern region of the Rio Grande do Sul state, Brazil. Fecal samples from 248 lambs, from 19 farms, were tested for the presence of oocysts. The positive samples were re-examined and the sporulated oocysts analyzed morphometrically to identify the presence of Eimeria species. In 100% of the evaluated farms, there were animals positive for the protozoan. The frequency of Eimeria species was: E. ovinoidalis (94.74%), E. crandallis (89.47%), E. granulosa (78.95%), E. parva (68.42%), E. ahsata (63.13%), E. punctata (42.11%), E. bakuensis (36.84%), E. faurei (10.53%), and E. pallida (5.26%). Mixed infection was found in 94.74% of the samples. This research describes, for the first time, the occurrence of E. crandallis and E. ovinoidalis infecting lambs in the study area. The wide distribution of this protozoan and the high frequency of pathogenic species show the importance and potential damage of sheep coccidiosis in herds from Rio Grande do Sul.

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Semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/17.5.1323 ◽

2021 ◽

Vol 17 (5) ◽

pp. 1323-1343

Author(s):

Juliana Mourão dos Santos Rodrigues ◽

Oséias Martins Magalhães ◽

Evaldo Alves Joaquim Júnior ◽

José Ricardo Inacio Ribeiro ◽

Felipe Ferraz Figueiredo Moreira

Keyword(s):

Atlantic Forest ◽

New Records ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Pampa Biome ◽

First Time

Rio Grande do Sul (RS) is the southernmost state in Brazil and includes areas within the Pampa and Atlantic Forest biomes. The semiaquatic bugs (Hemiptera, Heteroptera, Gerromorpha) from RS are poorly known, with only 14 previously recorded species. We carried out two expeditions in this state, in 2002 and 2019, across 19 municipalities. Here, we provide new records for 19 species, of which 13 are recorded for the first time from the state, five have their distributions expanded, and one is recorded again from a same locality previously reported in the literature. Furthermore, 13 species were collected for the first time in the Pampa biome and one in the Atlantic Forest.

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First records of the invasive spider Badumna longinqua (L. Koch) (Desidae) in southern Brazil with notes on the habitats and the species’ dispersion

Check List ◽

10.15560/11.1.1533 ◽

2015 ◽

Vol 11 (1) ◽

pp. 1533 ◽

Cited By ~ 3

Author(s):

Miguel Simó ◽

Álvaro Laborda ◽

Martín Núñez ◽

Antonio D. Brescovit

Keyword(s):

Invasive Species ◽

Rio Grande ◽

Public Parks ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Urban Habitats ◽

The Family ◽

Two Cities ◽

National Highway ◽

First Time

The invasive species Badumna longinqua and the family Desidae are recorded for the first time for Brazil. The spiders were collected in urban habitats of two cities from the state of Rio Grande do Sul in southern Brazil. Specimens and their webs were found in public parks, window frames and in a cemetery. The absence of this species along a national highway route and its dispersion in Brazil are discussed.

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New record and occurrence map of Tityus serrulatus Lutz & Mello, 1922 (Scorpiones, Buthidae) in the state of Rio Grande do Sul, southern Brazil

Check List ◽

10.15560/11.1.1556 ◽

2015 ◽

Vol 11 (1) ◽

pp. 1556 ◽

Cited By ~ 1

Author(s):

Conrado Mario da Rosa ◽

Arthur Diesel Abegg ◽

Leandro Malta Borges ◽

Gabriela S. S Bitencourt ◽

Rocco Alfredo Di Mare

Keyword(s):

Urban Area ◽

Central Region ◽

New Record ◽

Rio Grande ◽

The State ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Tityus Serrulatus ◽

First Time ◽

Santa Maria

The Brazilian scorpion Tityus serrulatus is recorded for the first time in the central region of Rio Grande do Sul, thus filling a gap of 567 km in its distribution. A specimen of the scorpion was collected in the urban area of the municipality of Santa Maria (29°43′51.31″ S, 053°48′5.74″ W) on 31 June 2014. A map was generated with the points of occurrence of the species in the state.

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Metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) in Patos lagoon, extreme south of Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612015075 ◽

2015 ◽

Vol 24 (4) ◽

pp. 447-453 ◽

Cited By ~ 4

Author(s):

Gabriela Lopes Rassier ◽

Tatiana Cheuiche Pesenti ◽

Joaber Pereira Júnior ◽

Diego Silva da Silva ◽

Emília Welter Wendt ◽

...

Keyword(s):

Rio Grande ◽

Parasite Prevalence ◽

Rio Grande Do Sul ◽

New Host ◽

Patos Lagoon ◽

Metazoan Parasites ◽

Geophagus Brasiliensis ◽

South Of Brazil ◽

First Time ◽

Prevalent Species

Abstract This study has evaluated the parasitic fauna of 79 pearl cichlids (Geophagus brasiliensis) from the estuary of Patos Lagoon (31° 57' S and 52° 06' W), Rio Grande do Sul, Brazil, during the months of May and June in 2011 and 2012. All the hosts analyzed were infected with at least one species of parasite. A total of eleven metazoa were identified in 459 specimens collected. The trematode Austrodiplostomum compactum (34.2%) and ergasilids Ergasilus lizae (32.9%) and Gauchergasilus lizae (32.9%) were the most prevalent species. The trematodes Thometrema overstreeti and Posthodiplostomum sp. had significantly higher prevalence in fish longer than 20 cm. The sex of the host had no effect on parasite prevalence and abundance. Pearl cichlids are registered as a new host for the trematodes Lobatostoma sp., Homalometron pseudopallidum and Thometrema overstreeti, for the ergasilids Ergasilus lizae and Gauchergasilus euripedesi and for the argulid Argulus spinolosus. The crustacean E. lizae is recorded in Rio Grande do Sul for the first time.

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First record of Cithaeron reimoseri (Araneae: Cithaeronidae) from the New World and first record of the family from southern Brazil

Check List ◽

10.15560/9.6.1594 ◽

2013 ◽

Vol 9 (6) ◽

pp. 1594 ◽

Cited By ~ 1

Author(s):

Ricardo Ott ◽

Antonio Domingos Brescovit

Keyword(s):

New World ◽

Rio Grande ◽

First Record ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Porto Alegre ◽

Worldwide Distribution ◽

The Family ◽

First Time ◽

Median Eyes

The African spider Cithaeron reimoseri Platnick, 1991 is registered for the first time in the New World, based in two females collected at Porto Alegre, Rio Grande do Sul, Brazil. Until now C. reimoseri was known only by the holotype from Eritrea. The species C. praedonius O. P.-Cambridge, 1872 was, until now, the only known species of the family with worldwide distribution and is considered prone to introduction in anthropic environments. Cithaeronidae are considered lower gnaphosoids being identifiable by the depressed posterior median eyes and the pseudosegmented tarsi.

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