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Parásitos metazoos de Anas georgica Gmelin, 1789 (Aves: Anseriformes) en Chile central: especificidad, prevalencia y variaciones entre localidades
Revista chilena de historia natural , 2009, DOI: 10.4067/S0716-078X2009000300002
Abstract: host specificity, prevalence and between-sites variation in metazoan parasites of 65 anas geórgica gmelin, 1789 (aves: anseriformes) specimens were assessed at six localities sampled between may and july 2004 in the central-south zone of chile. the correlation between the statistical taxonomic distinctiveness índex (std) with the prevalence and intensity in each parasite taxon was assessed in those taxa with determination attained at the species level. furthermore, the statistical significance of between-sites variation in abundance and prevalence of ectoparasites and endoparasites were assessed as well as those in total abundance and taxonomic richnes of infracommunities. finally, statistical tests allowed assessing whether host body weight and sex were relevant sources of variation in abundance and richness. most ducks (81.5 %) harbored parasites and from which 1,653 individuáis belonging to 11 taxa were collected. they were, among ectoparasites, the phthiraptera anaticola crassicornis (scopoli, 1763), anatoecus icterodes (nitzsch, 1818) and trinoton querquedulae (linneus, 1758). among the helminths we found the digenea australapatemon burti (miller, 1923) dubois, 1968, notocotylus imbricatus (loss, 1893), paramonostomum pseudoalveatum price, 1931, and an unidentified species oí echinostoma sp. rudolphi, 1809, echinoparyphium dietz, 1909; the nematoda porrocaecum sp. railliet & henry, 1912, and the cestada cloacotaenia megalops (nitzsch in creplin, 1829) wolfhuegel, 1938 and fuhrmanacanthus propeteres (fuhrmann, 1907) spasskii, 1966. all parasites except for digenea and a. icterodes are recorded for the first time in chile. there was a significantly negative correlation between std índex and the prevalence while there was no significant correlation between host-specificity and intensity. there were no between-sex differences in abundance or richness, but these variables showed differences between sites. there is no information on life cycles of the collected paras
Serum biochemistry of an, atlantic Yellow-Nosed Albatross Thalassarche chlororhynchos (Gmelin, 1789)
Baldassin, P.;Gallo, H.;Barbosa, C.B.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2007, DOI: 10.1590/S0102-09352007000200045
Abstract: colheu-se uma amostra de sangue de um albatroz thalassarche chlororhynchos (gmelin, 1789), recolhido pela polícia do meio ambiente de ubatuba, sp, para análises da bioquímica do soro. o objetivo dessas análises foi o de apontar possíveis altera??es dos parametros bioquímicos, visando facilitar futuras casas para reabilita??o de aves. nenhuma anormalidade foi encontrada e o animal morreu após três dias da captura.
Pablo Reyes,Mathias Hüne,Víctor H Ruiz
Gayana (Concepción) , 2007,
Abstract: Se estudió un ejemplar de Centrolophus niger (Gmelin, 1789) (Perciformes: Centrolophidae), capturado como fauna acompa ante en faenas de pesca de ``besugo'' Epigonus crassicaudus de Buen, 1959 el 14 de octubre del a o 2003 frente a la provincia de Valdivia (39o04'S; 73o57'W) a una profundidad de 400 m, mediante pesca de arrastre de media agua. Este constituye el primer registro para la especie en aguas del talud continental chileno situadas sobre la Placa Sudamericana. A specimen of Centrolophus niger (Gmelin, 1789) (Perciformes: Centrolophidae), caught as by catch of the ``chilean cardenalfish'' Epigonus crassicaudus de Buen 1959, was studied. The specimen was caught on October 14, 2003, on the continental slope just off shore Valdivia Province (39o04'S;73o57'W), at 400 m deep, through midwater trawler fishing. This one is the southernmost record of this genus and species, being simultaneously the first record in Chilean continental slope waters of South American Plate, and the second record for the Chilean ichthyofauna
Artrópodes em ninhos de Columba livia Gmelin, 1789 (Aves, Columbidae) em área urbana de Manaus, Amazonas, Brasil.  [cached]
Guilherme Maerschner Ogawa
EntomoBrasilis , 2008,
Abstract: Resumo. Foi realizado um estudo sobre artrópodes que vivem em ninhos de Columba livia Gmelin 1789, ave conhecida como pombo urbano e que nidifica em constru es humanas, com o intuito de inventariar as espécies de artrópodes associadas. Foram coletados 14 ninhos de C. livia em nove bairros da área urbana de Manaus os quais foram levados ao laboratótio e colocados em um extrator do tipo Berlese-Tulgren por 12 dias, para a captura dos artrópodes. Foram encontrados 10.323 artrópodes, pertencentes a 3 subfilos, 3 classes, 14 ordens e 33famílias. Acari foi mais abundante com 7.879 indivíduos, sendo o gênero Caloglyphus Berlese, 1923, o mais representativo (75%). A maioria das espécies encontradas é detritívora. A diversidade de artrópodes foi menor em Manaus se comparada à registrada em trabalhos da regi o Paleártica, provavelmente por C. livia ser uma espécie exótica na fauna Neotropical. Arthropods in the nests of Columba livia Gmelin 1789 (Aves, Columbidae) in the urban area of Manaus, Amazonas, Brazil. Abstract. The objective of this study was identify the arthropod fauna in nests of the urban pigeon, Columba livia Gmelin 1789 who build their nests in man-made buildings. Fourteen nests were collected in nine districts of the built up area of the city of Manaus. For twelve days, arthropods were extracted in a Berlese-Tulgren funnel. A total of 10.323 arthropods representing 3 subphyla, 3 classes, 14 orders and 33 families were detected. Acari was the most abundant group with 7879 individuals. Mites of the genus Caloglyphus Berlese, 1923, made up over 75 % of all arthropods collected. Most of the arthropods extracted are detrivorous and apterous. The diversity found in Manaus was lower than that reported for samples collected in the Palearctic Region, probably because C. livia is exotic in the Neotropical fauna. The introduction of this pigeon can be responsible for a major contact between some arthropods and humans.
Reyes,Pablo; Hüne,Mathias; Ruiz,Víctor H;
Gayana (Concepción) , 2007, DOI: 10.4067/S0717-65382007000100010
Abstract: a specimen of centrolophus niger (gmelin, 1789) (perciformes: centrolophidae), caught as by catch of the ``chilean cardenalfish'' epigonus crassicaudus de buen 1959, was studied. the specimen was caught on october 14, 2003, on the continental slope just off shore valdivia province (39o04's;73o57'w), at 400 m deep, through midwater trawler fishing. this one is the southernmost record of this genus and species, being simultaneously the first record in chilean continental slope waters of south american plate, and the second record for the chilean ichthyofauna
The Age, Growth and Reproduction of Gray Triggerfish (Balistes capriscus, Gmelin, 1789) in Iskenderun Bay  [PDF]
Ali Ismen,Muhammet Turkoglu,C. Cigdem Yigin
Pakistan Journal of Biological Sciences , 2004,
Abstract: The length-weight relationship, age, growth parameters, spawning, sex ratio, first maturity length and fecundity of gray triggerfish (Balistes capriscus G. 1789) were studied using 195 specimens from the Iskenderun Bay. Females made up 43% and males 57% of the individuals. The total length of females ranged from 8.0 to 24.5 cm and of males from 7.9 to 25.5 cm. The length-weight relationships for male and female were W=0.0386*L2.76 and W=0.0352*L2.78, respectively. The age data, derived from dorsal spin readings, were used to estimate the growth parameters of the von Bertalanffy equation. L8=39.0 cm, K=0.257, to=-0.79. The maximum age group determined was 3 for both sexes. The monthly values of gonadosomatic index (GSI) indicated that the spawning of gray triggerfish occurred mainly between May and July. Gray triggerfish attained first sexual maturity after 1 age (13 cm total length).
Chewing Lice (Insecta: Phthiraptera) on Mallards (Anas platyrynchos) in Turkey
Nursel Aksin
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2011.1656.1659
Abstract: This research was conducted to determine species of chewing lice (Phithiraptera) on mallard (Anas platyrynchos). For this purpose, twelve mallards (Anseriformes: Anatidae), obtained in different areas of Elazig province (Eastern Anatolian region) of Turkey from 2004 and 2006, during the hunting season between October to February were examined in terms of chewing lice. Three different chewing lice species were found on the infested mallards. These species were identified as Anaticola crassicornis (Scopoli, 1763), Trinoton querquedulae (Linnaenus, 1758) and Anatoecus sp. (nymph). In this study, the evidence of A. crassicornis, T. querquedulae and Anatoecus sp., on mallards is reported for the 1st time in Turkey.
Poliginia em Sicalis flaveola brasiliensis (Gmelin, 1789) (Passeriformes, Emberizidae)
Machado, Luiz Octavio Marcondes;
Revista Brasileira de Zoologia , 1982, DOI: 10.1590/S0101-81751982000100014
Abstract: during observations that took place at the sítio monte mor, municipality of limeira, s?o paulo, two cases of bigamy among sicalis flaveola brasiliensis were studied. the females occupied the same territory and built the nests close to one another. no aggression was observed between them, when one would enter each others' nest. the male fed the nestling of both females, even when the brood occurred simultaneously.
Tick infestations in the Namaqualand speckled padloper, Homopus signatus signatus (Gmelin, 1789)  [cached]
Victor J.T. Loehr,Brian T. Henen,Margaretha D. Hofmeyr
African Zoology , 2011,
Abstract: Many terrestrial chelonians are parasitized by ticks, but we have a poor understanding of what determines tick infestations on chelonian hosts. We counted ticks on Homopus signatus signatus during each spring in the years 2001–2004, and evaluated tick frequencies in relation to tortoise anatomy, climate and microhabitat. Tortoises hosted Ornithodoros compactus and O. savignyi, and ticks seemed to prefer the hindlimbs, avoid the shell, and use the forelimbs and neck in intermediate frequencies. The number of ticks on the neck and forelimbs did not differ among males, females and juveniles, but for the hindlimbs and all body parts, males and females usually had similar tick numbers and adults often had more ticks than juveniles. The number of ticks on the hindlimbs correlated with the body size of male and female tortoises, whereas the number of ticks on the forelimbs correlated with juvenile body size. Males and females had similar incidences of ticks despite sexual dimorphism in body size (female size >male size), and this may be due to the relatively large shell openings (soft skin exposure) of males compared to females. Body condition and microhabitat had no effect on the number of
Flutua??es sazonais na abundancia de Phalacrocorax brasilianus (Gmelin) no estuário do Saco da Fazenda, Itajaí, Santa Catarina, Brasil
Branco, Joaquim Olinto;
Revista Brasileira de Zoologia , 2002, DOI: 10.1590/S0101-81752002000400010
Abstract: the neotropic cormorant is one of the most comm on estuarine birds along santacatarina's shore, especially in artisanal fishery areas, where it obtains food easily. during the period from january, 1996 to december, 1999, and of january to december, 2001, the cormorants were monitored monthly in the estuary. the population p. brasilianus (gmelin, 1789) presented seasonal changes with the same annual pattern of increment of the abundance. significant differences were recorded between the seasons and the medium abundance of birds. those differences can be attributed to the events of the life cicle of the species and the oscillations in the estuary water temperature.
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