scholarly journals 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 ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1861 ◽  
Author(s):  
Daniela F. de Werk ◽  
Moisés Gallas ◽  
Eliane F. da Silveira ◽  
Eduardo Périco

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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2015 ◽  
Vol 11 (2) ◽  
pp. 1607
Author(s):  
Leandro Ramos Duarte ◽  
Moisés Gallas ◽  
Eliane Fraga da Silveira ◽  
Eduardo Périco

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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2010 ◽  
Vol 6 (2) ◽  
pp. 222
Author(s):  
Luis Esteban Krause Lanés ◽  
Leonardo Maltchik ◽  
Carlos Alberto S. de Lucena

This note extends the distribution of the dwarf cichlid fish Apistogramma borellii, and is the first record of the species, and the genus for the state of Rio Grande do Sul, southern Brazil, suggesting that the fish diversity of wetlands, although relatively high, is still poorly investigated in southern Brazil.


2012 ◽  
Vol 72 (3) ◽  
pp. 583-585 ◽  
Author(s):  
MAA. Coimbra ◽  
CS. Mascarenhas ◽  
G. Müller ◽  
JGW. Brum

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.


Check List ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 1887
Author(s):  
Erica Naomi Saito ◽  
Tobias Saraiva Kunz ◽  
André Ambrozio-Assis

Rhinella achavali is a large toad associated with lotic environments in Uruguay and Rio Grande do Sul, southern Brazil. Herein, we provide the first record of the species in the state of Santa Catarina, Brazil, extending its range approximately 200 km north from the previous records.


2016 ◽  
Vol 77 (3) ◽  
pp. 659-661
Author(s):  
D. A. Dalmolin ◽  
F. O. Rosa ◽  
M. D. Freire ◽  
L. F. M. Fonte ◽  
I. F. Machado ◽  
...  

Abstract Herein, we provide new occurrence records of Scinax nasicus (Cope, 1862) for the state of Rio Grande do Sul, Southern Brazil. All new records here provide are located on Southern half of the state. Besides this, we provide the first record for species in Brazilian coastal zone. Those records improve considerably our knowledge regarding species distribution in Southern Brazil.


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2011 ◽  
Vol 7 (2) ◽  
pp. 144
Author(s):  
Maria Kátia Matiotti da Costa ◽  
Gervásio Silva Carvalho

This study reports one specimen of Coryacris angustipennis (Bruner, 1900), a rare grasshopper, from São Francisco de Paula, state of Rio Grande do Sul, southern Brazil, extending its distribution over 1,800 kilometers from Corumbá, Brazil, and 1,300 kilometers from the type locality, Rosario, Argentina.


2019 ◽  
Vol 28 (1) ◽  
pp. 40-46
Author(s):  
Simone Scheer ◽  
Carolina Silveira Mascarenhas ◽  
Márcia Raquel Pegoraro de Macedo ◽  
Gertrud Muller

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.


2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Emili Bortolon dos Santos ◽  
Pedro Giovâni da Silva ◽  
Mario Arthur Favretto ◽  
Gerson Azulim Müller

Ovitraps are generally used to collect immatures of Culicinae (Diptera: Culicidae). This study reports eight species of beetles found in ovitraps placed in an Atlantic Forest fragment in the state of Rio Grande do Sul, Southern Brazil. Seven species were classified in the family Scarabaeidae (subfamily Scarabaeinae), and one species in the family Hybosoridae (subfamily Hybosorinae). The first record of Canthon angularis Harold, 1868 in Rio Grande do Sul state is also documented.


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2010 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
Mariana Juventina Magrini ◽  
Paula Beatriz Araujo ◽  
Marcio Uehara-Prado

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.


2008 ◽  
Vol 6 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Luciano de Oliveira Garcia ◽  
Carlos Eduardo Copatti ◽  
Flávio Wachholz ◽  
Waterloo Pereira Filho ◽  
Bernardo Baldisserotto

In this study we verified data of water temperatures collected by CORSAN-RS from 1996 to 2004 in several cities of the state of Rio Grande do Sul, southern Brazil, and analyzed the possibility of raising the most cultivated fish species in Brazil. The water temperature from 1996 to 2004 was 16 to 28ºC in summer, 17 to 23ºC in fall, 14 to 17ºC (down to 9ºC in the coldest months) in winter and 14 to 21ºC in spring. Native species of this state, such as silver catfish (Rhamdia quelen), traíra (Hoplias malabaricus), dorado (Salminus brasiliensis), pintado (Pimelodus maculatus), as well as carps (family Cyprinidae), are resistant to the low winter temperatures. These species have a lower growth rate in coldest months (winter/spring) but a good development in warmer months (summer/fall), reaching a satisfactory performance throughout the year. In the periods of more intense cold, mortality of some introduced species, such as surubim from Amazon Basin (Pseudoplatystoma sp.), pirapitinga (Piaractus brachypomus), pirarucu (Arapaimas gigas), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and Nile tilapia (Oreochromis niloticus) may occur. In addition, as most tropical species have a thermal range for growth and reproduction between 20 to 28ºC, some species may have poor development even in fall. Therefore, water temperature in this state should be considered in the choice of fish species to be cultivated.


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