Helminths infecting the parthenogenetic whiptail lizard Cnemidophorus nativo in a restinga habitat of Bahia State, Brazil

2004 ◽  
Vol 78 (4) ◽  
pp. 323-328 ◽  
Author(s):  
V.A. Menezes ◽  
D. Vrcibradic ◽  
J.J. Vicente ◽  
G.F. Dutra ◽  
C.F.D. Rocha
Keyword(s):  
Body Size ◽  
North America ◽  
Environmental Factors ◽  
Single Species ◽  
Helminth Species ◽  
Infection Rates ◽  
Coastal Site ◽  
New Host ◽  
New Host Records ◽  
Host Body Size

AbstractA sample of 101 specimens of the unisexual whiptail lizard Cnemidophorus nativo (Squamata; Teiidae) from a coastal site in Bahia State, Brazil were examined for the presence of endoparasites. Of these, 35 (34.7%) harboured helminths. Six helminth species were recovered from C. nativo, including five nematodes (Physaloptera retusa, Physalopteroides venancioi, Subulura lacertilia, Skrjabinelazia intermedia and Parapharyngodon sp., and one cestode (Oochoristica ameivae), all representing new host records. Most lizards were infected by a single species of helminth and none by more than three. Infection rates were neither significantly influenced by host body size nor by environmental factors. The results are compared with data from studies on other whiptail species in both South and North America.

scholarly journals Helminths of lizards from the municipality of Aripuanã in the southern Amazon region of Brazil

2011 ◽  
Vol 87 (1) ◽  
pp. 12-16 ◽  
Author(s):  
R.W. Ávila ◽  
R.J. da Silva
Keyword(s):  
Body Size ◽  
Power Plant ◽  
Host Species ◽  
Amazon Region ◽  
Helminth Fauna ◽  
Helminth Species ◽  
New Host ◽  
Mato Grosso ◽  
Degree Of Similarity ◽  
New Host Records

AbstractNinety-five specimens from 13 species of lizard collected during a herpetofaunal monitoring programme of the Faxinal II power plant, municipality of Aripuanã, state of Mato Grosso, Brazil (southern Amazon region) were examined for helminths. A total of 21 helminth species (16 Nematoda, 1 Cestoda and 4 Trematoda) were recovered, with an overall prevalence of 67.37%. Seventeen new host records and seven new locality records are reported. A low number of specialists and core helminth species were found. Lizard body size was positively correlated with both the total number of helminth species and individuals. Active foragers exhibited higher helminth diversity. However, sit-and-wait foragers, especially Plica plica, had similar diversity values as active foragers and harboured more helminth species. The degree of similarity in helminth fauna was higher among closely related host species.

Helminths associated with Norops fuscoauratus (Squamata, Dactyloidae) in highland marshes of the Brazilian semi-arid

2020 ◽  
Vol 94 ◽  
Author(s):  
J.M. dos Santos Mesquita ◽  
S.S. de Oliveira ◽  
R. Perez ◽  
R.W. Ávila
Keyword(s):  
Body Size ◽  
Neotropical Region ◽  
Intensity Of Infection ◽  
New Host ◽  
Mean Intensity ◽  
Parasite Richness ◽  
Relationship Of ◽  
New Host Records ◽  
Host Body Size ◽  
Semi Arid

Abstract Helminthological studies may contribute with valuable information on host biology and conservation. Herein, we provide new data on helminths infecting the lizard Norops fuscoauratus, testing one of the factors considered most important in parasitic ecology: host size. We analysed 25 specimens of N. fuscoauratus from three highland marshes in the Brazilian semi-arid. Eight taxa of helminths belonging to Nematoda, Trematoda and Acanthocephala were found. Physaloptera sp. showed the higher prevalence (40%), with a mean intensity of infection of 3.3 ± 1.46 (1–16) and mean abundance 1.32 ± 0.65 (0–16). Norops fuscoauratus represents four new host records for the helminths Cyrtosomum sp., Pharyngodon travassosi, Strongyloides sp. and Centrorhynchus sp. There is no relationship of host body size (P = 0.79) and mass (P = 0.50) with parasite richness. In addition, the present study contributes to the knowledge of the parasitic fauna of N. fuscoauratus and the Neotropical region.

scholarly journals Raillietiella mottae (Pentastomida: Raillietiellidae) parasitizing four species of Gekkota lizards (Gekkonidae and Phyllodactylidae) in the Brazilian Caatinga

2018 ◽  
Vol 55 (2) ◽  
pp. 140-145 ◽  
Author(s):  
V. F. Lima ◽  
S. V. Brito ◽  
J. A. Araujo Filho ◽  
D. A. Teles ◽  
S. C. Ribeiro ◽  
...  
Keyword(s):  
Body Size ◽  
New Host ◽  
Parasite Abundance ◽  
Host Body ◽  
Host Sex ◽  
New Host Records ◽  
Host Body Size

Summary We tested the role of sex, size, and mass of the lizards Phyllopezus pollicaris, Gymnodactylus geckoides, Hemidactylus agrius, Lygodactylus klugei, and Hemidactylus brasilianus on the rates of pentastomid infection in the Brazilian Caatinga. We collected 355 individuals of these five species, of which four (prevalence of infection: P. pollicaris 15.9 %, G. geckoides 1.4 %, H. agrius 28.57 %, and H. brasilianus 4.16 %) were infected by Raillietiella mottae. Parasite abundance was influenced by host body size and mass only in P. pollicaris. Host sex did not influence the abundance of parasites in any species. Hemidactylus agrius, G. geckoides, and H. brasilianus are three new host records for pentastomids.

scholarly journals Prevalence and intensity of pentastomid infection in two species of snakes from northeastern Brazil

2007 ◽  
Vol 67 (4) ◽  
pp. 759-763 ◽  
Author(s):  
WO Almeida ◽  
A Vasconcellos ◽  
SG Lopes ◽  
EMX Freire
Keyword(s):  
Arid Region ◽  
Infection Intensity ◽  
W State ◽  
Northeastern Brazil ◽  
Infection Rates ◽  
New Host ◽  
Host Infection ◽  
Semi Arid Region ◽  
New Host Records ◽  
Semi Arid

This study aimed to evaluate the infection rates of snakes by pentastomids in the semi-arid region of Brazil. Fifteen snakes (four Micrurus ibiboboca (Merrem, 1820) and eleven Philodryas nattereri Steindachner, 1870) were collected between January and April of 2005, in the municipality of Crato (07° 14' S and 39° 24' W), State of Ceará, Brazil. Laboratorial analysis of the respiratory tracts of the sampled snakes indicated differences in host infection rates: four individuals of P. nattereri (36.4%) were infected by Cephalobaena tetrapoda Heymons, 1922 (mean infection intensity 1.5 ± 0.28, 1-2) and three specimens (27.3%) by Raillietiella furcocerca (Diesing, 1863) (2.3 ± 1.32, 1-5). Only one individual of M. ibiboboca (25%) was infected by a non-identified species of Raillietiella sp. These are the first data on pentastomid infection in snakes in Northeastern Brazil and both snake species comprise new host records for the pentastomids. The results also indicate that the generalist parasites C. tetrapoda and R. furcocerca share their definitive hosts.

scholarly journals Infection patterns of helminths in Norops brasiliensis (Squamata, Dactyloidae) from a humid forest, Northeastern Brazil and their relation with body mass, sex, host size, and season

2019 ◽  
Vol 56 (2) ◽  
pp. 168-174 ◽  
Author(s):  
D. M. Amorim ◽  
R. W. Ávila
Keyword(s):  
Body Size ◽  
Ecological Factors ◽  
Parasite Load ◽  
Helminth Fauna ◽  
Northeastern Brazil ◽  
Rainfall Regime ◽  
New Host ◽  
Humid Forest ◽  
Host Sex ◽  
New Host Records

SummaryClimatic and ecological factors can influence the parasite load of a host. Variation in rainfall, body size, and sex of the hosts may be related to the abundance of parasites. This study investigated the helminth fauna associated with a population of Norops brasiliensis, together with the effect of host biology (sex, body size, and mass) and variation in rainfall regime on the abundance of helminths. Species of three groups of endoparasites were found (Nematoda, Cestoda, and Trematoda), with nematodes as the most representative taxa with eight species, prevalence of 63.2 %, mean intensity of 4.0 ± 0.58 (1 – 25), and mean abundance of 2.66 ± 0.44 (0 – 25). Nine helminth species are new host records for N. brasiliensis. The nematode Rhabdias sp. had the highest prevalence (53.3 %). There was no significant relationship between abundance of the trematode Mesocoelium monas and host sex or season, although the abundance of this parasite increased significantly with host body size and mass, while abundance of nematodes was related to season and host mass. This study increases the knowledge about the diversity of helminth fauna associated with N. brasiliensis, revealing infection levels of hosts from northeastern Brazil.

Additional Agaricales on wetland Monocotyledoneae in Canada

1984 ◽  
Vol 62 (9) ◽  
pp. 1844-1851 ◽  
Author(s):  
S. A. Redhead
Keyword(s):  
North America ◽  
Western North America ◽  
New Host ◽  
First Time ◽  
New Host Records

Coprinus phaeosporus Karst., Hypholoma subericaceum (Fr.) Kühner, Mycena tubarioides (Maire) Kühner, and Stropharia pseudocyanea (Desm.) comb. nov. are documented from North America for the first time. Agaricus albocyaneus Desm. ex Fr. is shown to be an error for A. pseudocyaneus Desm. Agrocybe paludosa (Lange) Kühner & Romagnesi, Coprinus martinii Favre ex Orton and C. subimpatiens Lange & Smith are reported from Canada. Range extensions or new host records are noted for Coprinus stercoreus Fr., C. urticicola (Berk. & Br.) Buller, Marasmius limosus Quél., Melanotus caricicola (Orton) Guz., Mycena juncicola (Fr.) Gillet, Pholiota graminis (Quél.) Singer, and Resinomycena saccharifera (Berk. & Br.) comb. nov. Resinomycena kalalochensis subsp. saccharifera in Europe and subsp. kalalochensis (Smith) comb. nov. in western North America are vicariant taxa.

Checklist of helminth parasites of threatened vertebrate species from Brazil

Zootaxa ◽  
2009 ◽  
Vol 2123 (1) ◽  
pp. 1-45 ◽  
Author(s):  
LUÍS C. MUNIZ-PEREIRA ◽  
FABIANO M. VIEIRA ◽  
JOSÉ L. LUQUE
Keyword(s):  
Host Species ◽  
Helminth Species ◽  
Helminth Parasites ◽  
Vertebrate Species ◽  
Helminthological Collection ◽  
New Host ◽  
Unpublished Information ◽  
New Host Records

Using available records, unpublished information retrieved from the Helminthological Collection of the Oswaldo Cruz Institute (CHIOC) and published reports, a checklist of the recorded helminth parasites of endangered vertebrates from Brazil was generated. A total of 772 records and 186 helminth species (6 Acanthocephala, 83 Nematoda, 23 Cestoda, 64 Trematoda, 10 Monogenea) in 76 host species (7 Actinopterygii, 8 Chondrichthyes, 1 Amphibia, 10 Reptilia, 22 Aves, 28 Mammalia) from Brazil were listed in the present work, including 39 undetermined helminth species and 10 new host records. This is the first compilation of the helminth parasites of threatened vertebrates in Brazil and in the Neotropics.

The occurrence of acanthocephalans in teleost fish from the Bizerte lagoon, Tunisia

2015 ◽  
Vol 90 (1) ◽  
pp. 96-101 ◽  
Author(s):  
L. Gargouri ◽  
R. Antar ◽  
F. Zarrouk ◽  
F. Maamouri
Keyword(s):  
Teleost Fish ◽  
Single Species ◽  
Trachurus Trachurus ◽  
Bizerte Lagoon ◽  
New Host ◽  
Liza Aurata ◽  
Lithognathus Mormyrus ◽  
First Time ◽  
Satellite Species ◽  
New Host Records

AbstractSeven species of acanthocephalans were identified for the first time in teleost fish from the Bizerte lagoon, Tunisia, including Neoechinorhynchus (Hebesoma) agilis (Rudolphi, 1819) Van Cleave, 1916; N. (Neoechinorhynchus) rutili Müller, 1780 (Neoechinorhynchidae); Acanthocephaloide propinquus (Dujardin, 1845) Meyer, 1932; A. incrassatus (Molin, 1858) Meyer, 1932 (Arhythmacanthidae); Longicollum pagrosomi Yamaguti, 1935 (Pomphorhynchidae); Rhadinorhynchus cadenati (Golvan et Houin, 1964) Golvan, 1969 (Rhadinorhynchidae); and Telosentis exiguus (von Linstow, 1901) Van Cleave, 1923 (Illiosentidae). Acanthocephaloide propinquus, N. (N.) rutili, L. pagrosomi and R. cadenati were restricted to the rectum and the posterior intestine, whereas the other species (A. incrassatus, T. exiguus and N. (H.) agilis) colonized two or three parts of the intestine. The most diverse acanthocephalan fauna was recorded in Lithognathus mormyrus, with three species; two species were reported from Trachurus trachurus; and a single species was recorded in Liza aurata and in Atherina boyeri. Neoechinorhynchus (N.) rutili, L. pagrosomi and R. cadenati attained the lowest prevalences of less than 6% and were considered as to be rare species. Acanthocephaloide incrassatus, A. propinquus, T. exiguus and N. (H.) agilis were satellite species. The diversity of the acanthocephalan fauna in the fish from the Bizerte lagoon is compared with previous studies from other localities. The report of A. incrassatus, A. propinquus and N. (N.) rutili in L. mormyrus presents new host records in Mediterranean waters.

New and little-known species of feather mites (Acari: Analgoidea: Pteronyssidae) from birds in North America

2006 ◽  
Vol 138 (2) ◽  
pp. 165-188 ◽  
Author(s):  
Sergei V. Mironov ◽  
Terry D. Galloway
Keyword(s):  
North America ◽  
Tree Swallow ◽  
Feather Mites ◽  
New Host ◽  
Cliff Swallow ◽  
Northern Flicker ◽  
Picoides Pubescens ◽  
Colaptes Auratus ◽  
First Time ◽  
New Host Records

AbstractIn this paper, we review the pteronyssid feather mites of the genera Pteronyssus Robin, Scutulanyssus Mironov, and Stenopteronyssus Faccini and Atyeo found in the course of an investigation into ectoparasites of birds in Canada. Five new species of feather mites are described: Pteronyssus sphyrapicinussp. nov. from the Yellow-bellied Sapsucker, Sphyrapicus varius (L.); Stenopteronyssus proctoraesp. nov. from the Northern Flicker, Colaptes auratus (L.); Scutulanyssus progneisp. nov. and Scutulanyssus subissp. nov. from the Purple Martin, Progne subis (L.); and Scutulanyssus petrochelidonissp. nov. from the Cliff Swallow, Petrochelidon pyrrhonota (Vieillot). New host records are provided for Pteronyssus picoides Černy and Schumilo from the Downy Woodpecker, Picoides pubescens (L.), and for Scutulanyssus obscurus (Berlese) from the Cliff Swallow; Pteronyssus brevipes Berlese and Scutulanyssus hirundicolus Mironov are formally recorded in North America for the first time; and Pteronyssus centurus McDaniel and Price is reported for the first time in Canada, from Lewis' Woodpecker, Melanerpes lewis (Gray). Scutulanyssus tyrrelli (Canestrini) is reported for the first time in Manitoba from the Tree Swallow, Tachycineta bicolor (Vieillot). Keys are provided for all species of Pteronyssus and Scutulanyssus found in North America.

scholarly journals Helminth community structure of the oven frog Leptodactylus latinasus (Anura, Leptodactylidae) from Corrientes, Argentina

2006 ◽  
Vol 51 (4) ◽  
Author(s):  
Monika Hamann ◽  
Cynthya González ◽  
Arturo Kehr
Keyword(s):  
Small Intestine ◽  
Body Size ◽  
Dominant Species ◽  
Parasite Fauna ◽  
Helminth Species ◽  
Helminth Community ◽  
Cestode Species ◽  
Component Community ◽  
The City ◽  
Host Body Size

AbstractA total of 36 adult individuals of Leptodactylus latinasus were collected near the city of Corrientes, Province of Corrientes in Argentina. The main goals of this study were: (1) to determine the helminth parasite fauna of L. latinasus; (2) to determine the richness and diversity of parasites at the component and infracommunity levels; (3) to analyze the relationships between helminth, frog body size and sex, and (4) to identify and examine species affinity of helminth communities. The helminth component community of this frog’s population consisted of 17 species. The predominant groups of parasites were the trematodes (adults: Glypthelmins repandum, Catadiscus inopinatus and Haematoloechus longiplexus; larvae: Travtrema aff. stenocotyle, Bursotrema aff. tetracotyloides, Styphlodora sp., unknown opisthogonimid species, Petasiger sp. and unknown strigeid species), followed by the nematodes (Cosmocerca podicipinus, C. parva, C. rara, C. cruzi, Schrankiana schranki and Aplectana hylambatis); other groups of parasites were represented by only one species (unknown larval cestode species and Centrorhynchus sp.). All parasite helminth species showed an aggregated pattern of distribution. The most infected organs were kidneys, small intestine, large intestine and pharyngeal zone. The host body size was important in determining the parasites abundance of G. repandum. At the level of component community G. repandum was the species with highest prevalence of infection and Bursotrema aff. tetracotyloides was the dominant species. Helminth species showed four significant pairs of covariation and two significant pairs of association in the infracommunities of Leptodactylus latinasus.

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