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Search Results: 1 - 10 of 13 matches for " anatidae "
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Novos Hospedeiros para o ácaro Nasal Rhinonyssus rhinolethrum (Trouessart) (Gamasida: Rhinonyssidae) no Brasil
Mascarenhas, Carolina S;Brum, Jo?o G W;Coimbra, Marco A A;Sinkoc, Afonso L;
Neotropical Entomology , 2009, DOI: 10.1590/S1519-566X2009000500024
Abstract: the black-necked swan, cygnus melanocoryphus, and the ringed teal, callonetta leucophrys, are reported as new hosts for the nasal mite rhinonyssus rhinolethrum (trouessart) in brazil.
First report of the digenetic trematode Psilochasmus oxyurus (Creplin) in the domestic goose, Anser anser (Linnaeus) in South America
Fernandes, Berenice M. M.;Menezes, Rodrigo C.;Tortelly, Rogério;Noronha, Dely;Pinto, Roberto M.;
Revista Brasileira de Zoologia , 2007, DOI: 10.1590/S0101-81752007000200037
Abstract: the digenetic trematode psilochasmus oxyurus (creplin, 1835) lühe, 1909, although with a large geographical distribution, is referred in geese (anser anser linnaeus, 1758) for the first time in south america, on the basis of specimens parasitizing brazilian domestic geese, with a prevalence of 20%. brief morphometric data on the parasites are included. clinical signs, gross and microscopic lesions were not observed in the birds.
Satellite telemetry of Afrotropical ducks: methodological details and assessment of success rates
Graeme Cumming,Mduduzi Ndlovu
African Zoology , 2012,
Abstract: Despite widespread and increasing use of solar-powered satellite transmitters to tag wild birds, there are few published articles that detail how transmitters should be attached to different species and even fewer assessments of the overall field success of telemetry projects. The scarcity of this information makes it difficult to plan and budget for telemetry projects effectively. In this paper we present relevant information from a study involving a total of 47 individual ducks of two Afrotropical anatid species, Egyptian Goose Alopochen aegyptiaca and Red-billed Teal Anas erythrorhyncha, using solar-powered GPS satellite transmitters of two different sizes (30g and 22g respectively) at three very different southern African sites (Strandfontein wastewater treatment works in the Western Cape Province of South Africa, Barberspan Nature Reserve in the North West Province of South Africa, and Lake Manyame in north-central Zimbabwe). We present a full description of harness design and attachment and a survivorship analysis of the transmitters. Our results suggest that the 30g units last longer than the 22g units, with approximately 60% and 30% respectively of these PTTs lasting longer than a year; 45% and 5% respectively lasting longer than two years; and 20% and 0% respectively lasting longer than three years. We strongly encourage the publication of comparable data sets so that future studies that rely on telemetry data can be planned with a realistic set of assumptions and limitations in mind.
Phorcotabanus cinereus (Wiedemann, 1821) (Diptera, Tabanidae), an ornithophilic species of Tabanid in Central Amazon, Brazil
Limeira-de-Oliveira, Francisco;Rafael, José Albertino;Henriques, Augusto Loureiro;
Memórias do Instituto Oswaldo Cruz , 2002, DOI: 10.1590/S0074-02762002000600015
Abstract: in central amazon, brazil, the tabanid phorcotabanus cinereus (wiedemann) was recorded attacking the native duck cairina moschata (linnaeus) (anseriformes, anatidae). the flight and behavior of the tabanid during the attacks and the host's defenses were videotaped and analyzed in slow motion. the tabanid was recorded flying rapidly around the heads of the ducks before landing. landing always took place on the beak, and then the tabanid walked to the fleshy caruncle on the basal part of the beak to bite and feed. firstly the duck defends itself through lateral harsh head movements, and then, when it is being bitten, it defends itself by rubbing its head on the body, or dipping the head into water, when swimming. if disturbed, the fly resumed the same pattern of flight as before and would generally try to land again on the same host and bite in the same place. this feeding activity was observed predominantly between 9:30 am and 4:30 pm and always in open areas, near aquatic environments, from june 1996 to january 1997, the dry season in central amazon. to test the attractiveness of other animals to p. cinereus, mammals, caimans and domestic and wild birds were placed in suitable habitat and the response of p. cinereus observed. p. cinereus did not attack these animals, suggesting that this species has a preference for ducks, which are plentiful in the region.
Fimbriaria fasciolaris and Cloacotaenia megalops (Eucestoda, Hymenolepididae), Cestodes from Brazilian Waterfowl
Muniz-Pereira, Luís C;Amato, Suzana B;
Memórias do Instituto Oswaldo Cruz , 1998, DOI: 10.1590/S0074-02761998000600014
Abstract: two cestode species, fimbriaria fasciolaris (pallas, 1781) fr?lich, 1802 cloacotaenia megalops (nitzsch in creplin, 1829) wolffhügel,1938 collected from anas bahamensis linné, 1758 and amazonetta brasiliensis (gmelin, 1758) in lagoons of the maricá district, state of rio de janeiro, brazil, are described. this is the first record of f. fasciolaris parasitizing a. bahamensis. the prevalence, intensity of infection, and mean intensity of infection for both species are given. overdispersion distribution is reported for f. fasciolaris with 535 specimens collected in a single a. bahamensis. a key for the genera in the fimbriariinae is presented. anatomical features of f. fasciolaris and c. megalops are discussed.
Distribución de aves acuáticas y rapaces en un embalse dulceacuícola artificial de Baja California Sur, México
Castillo-Guerrero,José Alfredo; Carmona,Roberto;
Revista de Biología Tropical , 2001,
Abstract: we determined the taxonomic composition and spatial-temporal distribution of aquatic and raptor birds in a freshwater artificial pond of el centenario, baja california sur, méxico, during 24 biweekly censuses (april, 1998 to march, 1999). the pond is particularly attractive for birds because of its variety of food items. a total 25 563 records of 69 species were done, among them the first report of chlidonias niger and phalaropus tricolor for the region. species richness and abundance were determined for the migrant component, mostly anatidae (16 species and 55.6 % of the total abundance) and shorebirds (18 species and 13.3%). the greater number of species and individuals was in c the deepest and more heterogeneus section of the pond. the most important species was oxyura jamaicensis (30 % of the total observed individuals), with highest abundance in the peninsula. the artificial pond presented an atypical and distinct ornithological composition because it is located in an arid region, and acts as a resting site for migrant birds. the site included species that usually live in freshwater and coastal areas, a characteristic reflected in their high richness. it contributes noticeably to the local avian biodiversity
Distribución de aves acuáticas y rapaces en un embalse dulceacuícola artificial de Baja California Sur, México
José Alfredo Castillo-Guerrero,Roberto Carmona
Revista de Biología Tropical , 2001,
Abstract: Se determinó la composición taxonómica y la distribución espaciotemporal de aves acuáticas en el estanque de almacenamiento del ejido El Centenario, B.C.S., durante 24 censos quincenales (abril de 1998 a marzo de 1999). El estanque es particularmente atractivo para las aves por la variedad de alimento que ofrece. Se realizaron 25 563 registros de 69, entre las que se reporta por primera vez en la región a Chlidonias niger y Phalaropus tricolor. La riqueza y la abundancia fueron determinadas por el componente migratorio, principalmente anátidos (16 especies y 55.6 % del total observado, respectivamente) y aves playeras (18 especies y 13.3 %). La zona que presentó el número mayor de especies e individuos fue la C, la más profunda y heterogénea. La especie más importante fue Oxyura jamaicensis (30 % del total observado), con los números más altos en la península. Este sitio presentó un componente aviar propio atípico, dada la aridez de la región, y funcionó como un sitio de escala e invernación para especies migratorias. Su componente incluye aves de afinidades costeras y dulceacuícolas, lo que se refleja en sus altas riquezas, contribuyendo notablemente a la biodiversidad local We determined the taxonomic composition and spatial-temporal distribution of aquatic and raptor birds in a freshwater artificial pond of El Centenario, Baja California Sur, México, during 24 biweekly censuses (April, 1998 to March, 1999). The pond is particularly attractive for birds because of its variety of food items. A total 25 563 records of 69 species were done, among them the first report of Chlidonias niger and Phalaropus tricolor for the region. Species richness and abundance were determined for the migrant component, mostly Anatidae (16 species and 55.6 % of the total abundance) and shorebirds (18 species and 13.3%). The greater number of species and individuals was in C the deepest and more heterogeneus section of the pond. The most important species was Oxyura jamaicensis (30 % of the total observed individuals), with highest abundance in the peninsula. The artificial pond presented an atypical and distinct ornithological composition because it is located in an arid region, and acts as a resting site for migrant birds. The site included species that usually live in freshwater and coastal areas, a characteristic reflected in their high richness. It contributes noticeably to the local avian biodiversity
Phorcotabanus cinereus (Wiedemann, 1821) (Diptera, Tabanidae), an ornithophilic species of Tabanid in Central Amazon, Brazil
Limeira-de-Oliveira Francisco,Rafael José Albertino,Henriques Augusto Loureiro
Memórias do Instituto Oswaldo Cruz , 2002,
Abstract: In Central Amazon, Brazil, the tabanid Phorcotabanus cinereus (Wiedemann) was recorded attacking the native duck Cairina moschata (Linnaeus) (Anseriformes, Anatidae). The flight and behavior of the tabanid during the attacks and the host's defenses were videotaped and analyzed in slow motion. The tabanid was recorded flying rapidly around the heads of the ducks before landing. Landing always took place on the beak, and then the tabanid walked to the fleshy caruncle on the basal part of the beak to bite and feed. Firstly the duck defends itself through lateral harsh head movements, and then, when it is being bitten, it defends itself by rubbing its head on the body, or dipping the head into water, when swimming. If disturbed, the fly resumed the same pattern of flight as before and would generally try to land again on the same host and bite in the same place. This feeding activity was observed predominantly between 9:30 am and 4:30 pm and always in open areas, near aquatic environments, from June 1996 to January 1997, the dry season in Central Amazon. To test the attractiveness of other animals to P. cinereus, mammals, caimans and domestic and wild birds were placed in suitable habitat and the response of P. cinereus observed. P. cinereus did not attack these animals, suggesting that this species has a preference for ducks, which are plentiful in the region.
Fimbriaria fasciolaris and Cloacotaenia megalops (Eucestoda, Hymenolepididae), Cestodes from Brazilian Waterfowl
Muniz-Pereira Luís C,Amato Suzana B
Memórias do Instituto Oswaldo Cruz , 1998,
Abstract: Two cestode species, Fimbriaria fasciolaris (Pallas, 1781) Fr lich, 1802 Cloacotaenia megalops (Nitzsch in Creplin, 1829) Wolffhügel,1938 collected from Anas bahamensis Linné, 1758 and Amazonetta brasiliensis (Gmelin, 1758) in lagoons of the Maricá District, State of Rio de Janeiro, Brazil, are described. This is the first record of F. fasciolaris parasitizing A. bahamensis. The prevalence, intensity of infection, and mean intensity of infection for both species are given. Overdispersion distribution is reported for F. fasciolaris with 535 specimens collected in a single A. bahamensis. A key for the genera in the Fimbriariinae is presented. Anatomical features of F. fasciolaris and C. megalops are discussed.
Philophthalmus gralli (Digenea: Philophthalmidae) parasite of Anas bahamensis and Amazonetta brasiliensis, from Lagoons of Maricá county, Rio de Janeiro, Brazil
Muniz-Pereira, Luís Cláudio;Amato, Suzana B.;
Memórias do Instituto Oswaldo Cruz , 1993, DOI: 10.1590/S0074-02761993000400012
Abstract: forty ducks, 18 anas bahamensis (white-cheecked pintail) and 22 amaxonetta brasiliensis (brazilian duck) from maricá and guarapina lagoons, maricá, rj, brazil, were examined. the prevalence of philophthalmus gralli in a. bahamensis was 22.2% ans in a. brasiliensis was 27.27%. this is the first record of p. gralli in the neotropical region, and a. bahamensis and a. brasiliensis are new host records for p. gralli.
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