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Petra Sumasgutner - One of the best experts on this subject based on the ideXlab platform.
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high prevalence and genetic diversity of haemoproteus Columbae haemosporida haemoproteidae in feral pigeons Columba livia in cape town south africa
Parasitology Research, 2020Co-Authors: Carina Nebel, Josef Harl, Adrien Pajot, Herbert Weissenbock, Arjun Amar, Petra SumasgutnerAbstract:In this study, we explore blood parasite prevalence, infection intensity, and co-infection levels in an urban population of feral pigeons Columba livia in Cape Town. We analyze the effect of blood parasites on host body condition and the association between melanin expression in the host’s plumage and parasite infection intensity and co-infection levels. Relating to the haemosporidian parasite itself, we study their genetic diversity by means of DNA barcoding (cytochrome b) and show the geographic and host distribution of related parasite lineages in pigeons worldwide. Blood from 195 C. livia individuals was collected from April to June 2018. Morphometric measurements and plumage melanism were recorded from every captured bird. Haemosporidian prevalence and infection intensity were determined by screening blood smears and parasite lineages by DNA sequencing. Prevalence of Haemoproteus spp. was high at 96.9%. The body condition of the hosts was negatively associated with infection intensity. However, infection intensity was unrelated to plumage melanism. The cytochrome b sequences revealed the presence of four Haemoproteus lineages in our population of pigeons, which show high levels of co-occurrence within individual birds. Three lineages (HAECOL1, COLIV03, COQUI05) belong to Haemoproteus Columbae and differ only by 0.1% to 0.8% in the cytochrome b gene. Another lineage (COLIV06) differs by 8.3% from the latter ones and is not linked to a morphospecies, yet. No parasites of the genera Leucocytozoon and Plasmodium were detected.
Manal F Elkhadragy - One of the best experts on this subject based on the ideXlab platform.
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effects of eugenol on haemoproteus Columbae in domestic pigeons Columba livia domestica from riyadh saudi arabia
Bioscience Reports, 2019Co-Authors: Dina M Metwally, Razan A Altalhi, Ibrahim A H Barakat, Manal F ElkhadragyAbstract:Eugenol was investigated for the treatment of Haemoproteus Columbae (H. Columbae) infected squabs (young domestic pigeons, Columba domestica). Thirty naturally-infected squabs were divided into three groups of 10 each. One group was treated with Eugenol, while the positive and negative control groups were administered buparvaquone (Butalex®) and distilled water, respectively. The number of infected red blood cells (RBCs) was calculated in all groups before and after treatment at 4-day intervals for 16 days. The results showed a significant therapeutic effect of Eugenol, with a progressive decrease in the number of infected RBCs from 89.20 ± 2.11 before treatment to 0.90 ± 0.31 at the end of treatment (P≤0.05). Butalex® was able to suppress the number of infected RBCs from 93.70 ± 1.72 before treatment to 0.90 ± 0.35 at the end of the experiment (P≤0.05). Eugenol showed therapeutic effects against H. Columbae and may be regarded as a candidate for further studies to develop new drugs against blood parasites, in both animals and humans.
José Antonio - One of the best experts on this subject based on the ideXlab platform.
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Salida de campo a la Cuesta de la Maruquesa (Valladolid) el 11 de enero de 1953 y estadísticas de taxiados
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a la Cuesta de la Maruquesa, en Valladolid capital, el 11 de enero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Alauda arvensis (Alondra común), Carduelis cannabina (Pardillo común, llamada Colorín y Acanthis cannabina por el autor), Carduelis chloris (Verderón común, llamado Chloris chloris por el autor), Carduelis sp. (probablemente, el Jilguero, C.carduelis), Carduelis spinus (Lúgano, llamado Acanthis spinus por el autor), Certhia sp. (Agateador, también conocido como Chapin), "Chorla" (probablemente se refiere a la Ganga ortega, Pterocles orientalis), Columba domestica (Paloma doméstica), Columba livia (Paloma bravía), Columba oenas (Paloma zurita), Corvus corone (Corneja negra), Emberiza cia (Escribano montesino), Emberiza cirlus (Escribano soteño), Falco Columbarius (Esmerejón, llamado F.aesalon por el autor), Fringilla coelebs (Pinzón vulgar), Fringilla montifringilla (Pinzón real), Lophophanes cristatus (Herrerillo capuchino, llamado Parus cristarus por el autor), Melanocorypha calandra (Calandria), Motacilla alba (Lavandera blanca), Parus major (Carbonero común, también conocido como Chapin), Passer montanus (Gorrión molinero), Perdiz (Alectoris sp. o Perdix sp.), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Serinus serinus (Verdecillo), Turdus merula (Mirlo común) y Turdus pilaris (Zorzal real).Field trip to the Cuesta de la Maruquesa, in the city of Valladolid, the 11th of January of 1953, of which there were noted observations about the following birds: Alauda arvensis (Eurasian Skylark), Carduelis cannabina (Eurasian Linnet, refered as Acanthis cannabina by the author), Carduelis chloris (European Greenfinch, refered as Chloris chloris by the author), Carduelis sp. (possibly, the European Goldfinch, C.carduelis), Carduelis spinus (Eurasian Siskin, referres as acanthis spinus by the author), Certhia sp. (Tree-creeper), "Chorla" (possibly, the Black-bellied Sandgrouse, Pterocles orientalis), Columba livia (Rock Pigeon), Columba oenas (Stock Pigeon), Columba palumbus (Common Wood-pigeon), Corvus corone (Carrion Crow), Emberiza cia (Rock Bunting), Emberiza cirlus (Cirl Bunting), Falco Columbarius (Merlin, refered as F.aesalon by the author), Fringilla coelebs (Chaffinch), Fringilla montifringilla (Brambling), Lophophanes cristatus (Crested Tit, refered as, Parus cristatus by the author), Melanocorypha calandra (Calandria Lark), Motacilla alba (White Wagtail), Partridge (Alectoris sp. or Perdix sp.), Parus major (Great Tit), Passer montanus (Eurasian Tree Sparrow), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Serinus serinus (European Serin), Turdus merula (Eurasian Blackbird) and Turdus pilaris (Fieldfare)
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Salida de campo por Valladolid el 12 de diciembre de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo por Valladolid capital, durante la mañana del 12 de diciembre de 1953, de la que se anotaron observaciones sobre los mamíferos Mustela putorius (Turón) y Vulpes vulpes (Zorro, también llamado Raposo por el autor), y las siguientes aves: Anser sp. (Ánsar), Ardea cinerea (Garza real), Columba livia (Paloma bravía), Columba sp. (Paloma), Strix aluco (Cárabo común), Sturnus unicolor (Estornino negro) y Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común). Se incluyen varios análisis de contenidos estomacales, tanto de aves como de mamíferos.Field trip through the city of Valladolid, during the morning of the 12th of December of 1953, of which there were noted observations about the mammals Mustela putorius (European Polecat) and Vulpes vulpes (Red Fox), and the following birds: Anser sp. (Goose), Ardea cinerea (Grey Heron), Columba livia (Rock Pigeon), Columba sp. (Pigeon), Strix aluco (Tawny Owl), Sturnus unicolor (Spotless Starling) and Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush). Some stomach content analysis are included, from the birds as well as from the mammals
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Salida de campo a Puente Duero - Esparragal (Valladolid) el 9 de enero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo a Puente Duero (Valladolid) el 9 de enero de 1953, de la que se anotaron observaciones sobre las siguientes aves: Ardea sp. (Garza), Buteo buteo (Busardo ratonero, también llamado Águila ratera), Carduelis carduelis (Jilguero), Columba oenas (Paloma zurita), Columba palumbus (Paloma torcaz), Corvus corone (Corneja negra), Milvus milvus (Milano real), Patos (seguramente, Anas sp.), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Sturnus unicolor (Estornino negro), Sylvia undata (Curruca rabilarga) y Vanellus vanellus (Avefría europea).Field trip to Puente Duero (Valladolid) the 9th of January of 1953, of which there were noted observations about the following birds: Ardea sp. (Heron), Buteo buteo (Common Buzzard), Carduelis carduelis (European Goldfinch), Columba oenas (Stock Pigeon), Columba palumbus (Common Wood-pigeon), Corvus corone (Carrion Crow), Ducks (probably, Anas sp.), Milvus milvus (Red Kite), Pica pica (Black-billed Magpie), Sturnus unicolor (Spotless Starling), Sylvia undata (Dartford Warbler) and Vanellus vanellus (Northern Lapwing)
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Resumen de las notas de Carlos Valverde desde el 14 al 28 y de Mariano del 4 de noviembre de 1951, de salidas de campo a Valdestillas (Valladolid)
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Resumen de las Notas de Carlos Valverde Gómez de de salidas de campo a Valdestillas (Valladolid) entre el 14 y el 28 de noviembre de 1951, y de Mariano del 4 de noviembre de 1951, en las que aparecen las siguientes aves: Anas acuta (Ánade rabudo), Anas crecca (Cerceta común), Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón), Anser sp. (Ánsar), Anthus sp. (probablemente, el Bisbita alpino, A.spinoletta), Ardea cinerea (Garza real), Buteo buteo (Busardo ratonero), Columba oenas (Paloma zurita), Columba palumbus (Paloma torcaz), Columba livia (Paloma bravía), Cyanopica cooki (Rabilargo, llamado "Charro" y C. cyana por el autor), Emberiza cia (Escribano montesino), Falco peregrinus (Halcón peregrino), Falco subbuteo (Alcotán), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Milvus milvus (Milano real), Motacilla alba (Lavandera blanca), Scolopax rusticola (Chocha perdiz, también llamada Becada), Tringa ochropus (Andarríos grande), Turdus merula (Mirlo común), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus musicus (considerado actualmente Turdus philomelos, el Zorzal común), Turdus pilaris (Zorzal real) y Turdus viscivorus (Zorzal charlo).Summary of the notes of the field trips of Carlos Valverde Gómez to Valdestillas (Valladolid) between the 14th and the 28th of November of 1951, and those of Mariano of the 4th of November of 1951, in which the following birds are included: Anas acuta (Northern Pintail), Anas crecca (Common Teal), Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Anser sp. (Goose), Anthus sp. (possibly, the Water Pipit, A.spinoletta), Ardea cinerea (Grey Heron), Buteo buteo (Common Buzzard), Columba oenas (Stock Pigeon), Columba palumbus (Common Wood-pigeon), Columba livia (Rock Pigeon), Cyanopica cooki (Azure-winged Magpie, refered as C. cyana by the author), Emberiza cia (Rock Bunting), Falco peregrinus (Peregrine Falcon), Falco subbuteo (Eurasian Hobby), Gallinago gallinago (Common Snipe, refered as Capella gallinago by the author), Milvus milvus (Red Kite), Motacilla alba (White Wagtail), Scolopax rusticola (Eurasian Woodcock), Tringa ochropus (Green Sandpiper), Turdus merula (Eurasian Blackbird), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus musicus (currently considered Turdus philomelos, the Song Thrush), Turdus pilaris (Fieldfare) and Turdus viscivorus (Mistle Thrush)
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Salida de campo de Luis Valverde Gómez y José Antonio Sáez Royuela a Magaz de Pisuerga (Palencia) el 7 de enero de 1953
2009Co-Authors: Valverde Gómez, José AntonioAbstract:Salida de campo de Luis Valverde Gómez ("Leneis") y José Antonio Sáez Royuela ("Tonono"), hermano y amigo del autor, a Magaz de Pisuerga (Palencia) el 7 de enero de 1953, recorriendo 12 km. del río Pisuerga, de la que se anotaron observaciones sobre Lepus sp. (Liebre), Oryctolagus cuniculus (Conejo), y las siguientes aves: Accipiter nisus (Gavilán común, también llamado Astur palumbarius por el autor), Alauda arvensis (Alondra común), Anas crecca (Cerceta común), Anas penelope (Silbón europeo), Anas platyrhynchos (Ánade azulón, también llamado Pato bravío por el autor), Anser anser (Ánsar común), Anser fabalis (Ánsar campestre), Aquila chrysaetos (Águila real, llamada ocasionalmente Águila liebrera por el autor), Ardea cinerea (Garza real), Carduelis sp. (probablemente, el Jilguero, C.carduelis), Columba domestica (Paloma doméstica), Columba livia (Paloma bravía), Columba palumbus (Paloma torcaz), Corvus frugilegus (Graja), Corvus monedula (Grajilla, llamada Coloeus por el autor), Emberiza sp. (Escribano), Erithacus rubecula (Petirrojo), Falco tinnunculus (Cernícalo vulgar), Fringilla coelebs (Pinzón vulgar), Gallinago gallinago (Agachadiza común, llamada Capella gallinago por el autor), Gallinula chloropus (Gallineta común), Pica pica (Urraca, llamada "marica" y "picarza" por el autor), Picus viridis (Pito real), Pterocles alchata (Ganga ibérica), Rallus aquaticus (Rascón europeo), Scolopax rusticola (Chocha perdiz, también llamada Becada), Sturnus vulgaris (Estornino pinto), Troglodytes troglodytes (Chochín), Turdus ericetorum (considerado actualmente Turdus philomelos, el Zorzal común), Turdus merula (Mirlo común) y Vanellus vanellus (Avefría europea).Field trip of Luis Valverde Gómez ("Leneis") and José Antonio Sáez Royuela ("Tonono"), brother and friend of the author, to Magaz de Pisuerga (Palencia) the 7th of January of 1953, travelling through 12km. of the Pisuerga River, of which there were noted observations about Lepus sp. (Hare), Oryctolagus cuniculus (European Rabbit), and the following birds: Accipiter nisus (Eurasian Sparrowhawk, also refered as Astur palumbarius by the author), Alectoris rufa (Red-leged Partridge), Anas crecca (Common Teal), Anas penelope (Eurasian Wigeon), Anas platyrhynchos (Mallard), Anser anser (Greylag Goose), Anser fabalis (Bean Goose), Aquila chrysaetos (Golden Eagle), Ardea cinerea (Grey Heron), Carduelis sp. (possibly, the European Goldfinch, C.carduelis), Columba domestica (Domestic Pigeon), Columba livia (Rock Pigeon), Columba palumbus (Common Wood-pigeon), Corvus corone (Carrion Crow), Corvus frugilegus (Rook), Emberiza sp. (Bunting), Erithacus rubecula (European Robin), Falco tinnunculus (Common Kestrel), Fringilla coelebs (Chaffinch), Gallinago gallinago (Common Snipe, refered as, Capella gallinago by the author), Gallinula chloropus (Common Moorhen), Pica pica (Black-billed Magpie), Picus viridis (Eurasian Green Woodpecker), Pterocles alchata (Pin-tailed Sandgrouse), Rallus aquaticus (Water Rail), Scolopax rusticola (Eurasian Woodcock), Sturnus vulgaris (Common Starling), Troglodytes troglodytes (Winter Wren), Turdus ericetorum (currently considered Turdus philomelos, the Song Thrush), Turdus merula (Eurasian Blackbird) and Vanellus vanellus (Northern Lapwing)
Achim D Gruber - One of the best experts on this subject based on the ideXlab platform.
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high prevalence of sarcocystis calchasi sporocysts in european accipiter hawks
Veterinary Parasitology, 2011Co-Authors: Philipp Olias, Lena Olias, Michael Lierz, Jurgen Krucken, Achim D GruberAbstract:The emerging Sarcocystis calchasi induces a severe and lethal central nervous disease in its intermediate host, the domestic pigeon (Columba livia f. domestica). Experimental studies have identified the Northern goshawk (Accipiter g. gentilis) as final host. Phylogenetically closely related European sparrowhawks (Accipiter n. nisus) and wood pigeons (Columba palumbus) have been found to harbor genetically closely related Sarcocystis spp. However, data on the prevalence and potential interspecies occurrence of these parasites are lacking. Here, we report that European Accipiter hawks (Accipitrinae) are highly infected with S. calchasi, S. Columbae and Sarcocystis sp. ex A. nisus in their small intestine. Thirty-one of 50 (62%) Northern goshawks necropsied during 1997-2008 were positive for S. calchasi in a newly established species-specific semi-nested PCR assay based on the first internal transcribed spacer region. Unexpectedly, 14 of 20 (71.4%) European sparrowhawks tested also positive. In addition, birds of both species were found to be infested with S. Columbae and an, as yet, unnamed Sarcocystis sp. recently isolated from European sparrowhawks. These findings raise new questions about the host specificity of S. calchasi and its high virulence in domestic pigeons, since sparrowhawks only rarely prey on pigeons. Notably, isolated sporocysts from both infected Accipiter spp. measured 8 μm × 11.9 μm, precluding a preliminary identification of S. calchasi in feces of Accipiter hawks based on morphology alone. Importantly, three of four Northern goshawks used in falconry tested positive for S. calchasi. In conclusion, the results indicate that both European Accipter spp. in Germany serve as natural final hosts of S. calchasi and suggest that falconry and pigeon sport may serve as risk factors for the spread of this pathogen in domestic pigeons.
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sarcocystis calchasi is distinct to sarcocystis Columbae sp nov from the wood pigeon Columba palumbus and sarcocystis sp from the sparrowhawk accipiter nisus
Veterinary Parasitology, 2010Co-Authors: Philipp Olias, Lena Olias, Michael Lierz, Heinz Mehlhorn, Achim D GruberAbstract:Abstract Sarcocystis calchasi has been identified as causative agent of a newly discovered central nervous disease in domestic pigeons ( Columba livia f. domestica ) observed for the first time in Germany in 2006. Initial studies have indicated that this parasite is highly pathogenic for domestic pigeons after ingestion of low doses of sporocysts shed by the Northern goshawk ( Accipiter gentilis ). Here we tested whether phylogenetically related birds might regularly harbor Sarcocystis species. Five wood pigeons ( Columba palumbus ) and five sparrowhawks ( Accipiter nisus ) from Northern Germany were examined. All birds were PCR negative for S. calchasi by universal primers. Instead, both avian species harbored two as yet undescribed Sarcocystis species. Light and transmission electron microscopy identified cysts in the skeletal muscle of wood pigeons of 56–156 μm in width. The cysts had a smooth surface without protrusions. Sporocysts derived from the small intestine of the sparrowhawks measured 11.88 μm × 8.34 μm. Polymerase chain reaction amplification and sequencing of the first internal transcribed spacer region (ITS-1), the 18S rRNA and the 28S rRNA gene comprising the variabel D2 and D3 domains further characterized them as two novel Sarcocystis species. S. calchasi displays a pairwise distance value of the ITS-1 region ranging between 0.165 and 0.195 with the Sarcocystis spp. from the wood pigeon and the sparrowhawk, respectively. A phylogenetic analysis further supported the existence of two new species.
Dina M Metwally - One of the best experts on this subject based on the ideXlab platform.
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effects of eugenol on haemoproteus Columbae in domestic pigeons Columba livia domestica from riyadh saudi arabia
Bioscience Reports, 2019Co-Authors: Dina M Metwally, Razan A Altalhi, Ibrahim A H Barakat, Manal F ElkhadragyAbstract:Eugenol was investigated for the treatment of Haemoproteus Columbae (H. Columbae) infected squabs (young domestic pigeons, Columba domestica). Thirty naturally-infected squabs were divided into three groups of 10 each. One group was treated with Eugenol, while the positive and negative control groups were administered buparvaquone (Butalex®) and distilled water, respectively. The number of infected red blood cells (RBCs) was calculated in all groups before and after treatment at 4-day intervals for 16 days. The results showed a significant therapeutic effect of Eugenol, with a progressive decrease in the number of infected RBCs from 89.20 ± 2.11 before treatment to 0.90 ± 0.31 at the end of treatment (P≤0.05). Butalex® was able to suppress the number of infected RBCs from 93.70 ± 1.72 before treatment to 0.90 ± 0.35 at the end of the experiment (P≤0.05). Eugenol showed therapeutic effects against H. Columbae and may be regarded as a candidate for further studies to develop new drugs against blood parasites, in both animals and humans.