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John R Barta - One of the best experts on this subject based on the ideXlab platform.
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the complete mitochondrial genome sequences of two isospora species eimeriidae eucoccidiorida coccidiasina apicomplexa causing coccidiosis in superb glossy starlings lamprotornis superbus aves Sturnidae
Mitochondrial DNA Part B, 2017Co-Authors: Mian Abdul Hafeez, John R BartaAbstract:Complete mitochondrial genomes are reported for two Isospora species causing systemic coccidiosis in Superb Glossy Starlings (Aves: Sturnidae). The A/T rich (34.7% G/C) genomes were 6223 bp in length for Isospora greineri and 6217 bp for Isospora superbusi. Each encoded 3 protein-coding genes, (COI, COIII and CytB) plus 18 LSU and 14 SSU rDNA fragments. Arrangement of protein- and rRNA-coding regions was identical to known Eimeria sp. mt genomes; start codon usage was conventional. The mitochondrial genome structures of Isospora and Eimeria species are conserved and reflect the close phylogenetic association between these eimeriid genera of apicomplexan parasites.
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Description of two new Isospora species causing visceral coccidiosis in captive superb glossy starlings, Lamprotornis superbus (Aves: Sturnidae)
Parasitology Research, 2014Co-Authors: Mian A. Hafeez, Iga Stasiak, Pauline Delnatte, Shiem El-sherry, Dale A. Smith, John R BartaAbstract:Isospora greineri sp. n. and Isospora superbusi sp. n. are described from captive superb glossy starlings, Lamprotornis superbus , from the Toronto Zoo succumbing to visceral coccidiosis. Sequence data from nuclear 18S recombinant DNA (rDNA) and mitochondrial cytochrome c oxidase subunit I (COI) loci from sporulated oocysts and infected tissues (liver, lung, or spleen) demonstrated two distinct Isospora sp. genotypes that varied in their relative abundance. In the tissues of one affected bird, as well as its associated fecal sample, two distinct COI sequences (1.7 % divergence) and two distinct 18S rDNA sequences (0.6 % divergence) were found at almost the same abundance; in other specimens, one of the 18S and one of the COI sequences were less abundant than the other. In the tissues of some birds, only a single COI and single 18S sequence were present. In all cases, the same pair of 18S rDNA and COI sequences fluctuated in abundance in parallel, indicating that there were two distinct species present rather than one species with more than one COI or 18S locus. The oocysts of these new species cannot be differentiated morphologically. Sporulated oocysts of both were spherical to subspherical measuring 17.7 ± 0.22 μm by 17.1 ± 0.20 μm with a mean L/W ratio of 1.03 ± 0.004. Sporocysts were ovoid measuring 13.5 ± 0.17 μm by 9.3 ± 0.15 μm with a mean L/W ratio of 1.4 ± 0.02. Sporocysts had a small Stieda body with indistinct sub-Stieda body; each sporocyst had a compact residuum. Two morphologically similar but genetically divergent Isospora species were shown to cause simultaneous enteric and extraintestinal infections in captive superb glossy starlings.
Dustin R Rubenstein - One of the best experts on this subject based on the ideXlab platform.
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a complete species level molecular phylogeny for the eurasian starlings Sturnidae sturnus acridotheres and allies recent diversification in a highly social and dispersive avian group
Molecular Phylogenetics and Evolution, 2008Co-Authors: Irby J Lovette, Brynn V Mccleery, Amanda L. Talaba, Dustin R RubensteinAbstract:Abstract We generated the first complete phylogeny of extant taxa in a well-defined clade of 26 starling species that is collectively distributed across Eurasia, and which has one species endemic to sub-Saharan Africa. Two species in this group—the European starling Sturnus vulgaris and the common Myna Acridotheres tristis —now occur on continents and islands around the world following human-mediated introductions, and the entire clade is generally notable for being highly social and dispersive, as most of its species breed colonially or move in large flocks as they track ephemeral insect or plant resources, and for associating with humans in urban or agricultural landscapes. Our reconstructions were based on substantial mtDNA (4 kb) and nuclear intron (4 loci, 3 kb total) sequences from 16 species, augmented by mtDNA NDII gene sequences (1 kb) for the remaining 10 taxa for which DNAs were available only from museum skin samples. The resulting mitochondrial gene tree embedded within a multilocus framework shows that the well-studied taxa S. vulgaris/unicolor are the sister lineage to the remaining members of the radiation, from which other relatively early lineages gave rise to forms that are now nomadic or locally migrant in Africa ( Creatophora ) and western Asia ( Pastor ). The remaining taxa form a clade with a complicated biogeographic history primarily in central and eastern Asia; this group contains a range of sedentary to highly migratory taxa, as well as widely distributed species and single-island endemics such as the highly endangered Bali myna ( Leucopsar ). Several groups of species in the genus Acridotheres have low magnitudes of within-group divergence and likely diversified via their respective colonization of islands. The taxonomy of this entire group has remained highly volatile over the past century; we propose dividing these 26 species among 11 reciprocally monophyletic genera ( Acridotheres , Poliopsar , Temenuchus , Sturnornis , Leucopsar , Gracupica , Agropsar , Pastor , Creatophora , and Sturnus ).
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a comprehensive molecular phylogeny of the starlings aves Sturnidae and mockingbirds aves mimidae congruent mtdna and nuclear trees for a cosmopolitan avian radiation
Molecular Phylogenetics and Evolution, 2007Co-Authors: Irby J Lovette, Dustin R RubensteinAbstract:We generated a comprehensive phylogeny for the avian families Sturnidae (starlings, mynas, Rhabdornis, oxpeckers, and allies) and Mimidae (mockingbirds, thrashers, and allies) to explore patterns of morphological and behavioral diversification. Reconstructions were based on mitochondrial DNA sequences from five coding genes (4108 bp), and nuclear intron sequences from four loci (2974 bp), for most taxa, supplemented with NDII gene sequences (1041 bp) derived from museum skin specimens from additional taxa; together the 117 sampled taxa comprise 78% of the 151 species in these families and include representatives of all currently or recently recognized genera. Phylogenetic analyses consistently identified nine major clades. The basal lineage is comprised of the two Buphagus oxpeckers, which are presently confined to Africa where they are obligately associated with large mammals. Some species in nearly all of the other major clades also feed on or around large vertebrates, and this association may be an ancestral trait that fostered the world-wide dispersal of this group. The remaining taxa divide into sister clades representing the New-World Mimidae and Old-World Sturnidae. The Mimidae are divided into two subclades, a group of Central American and West Indian catbirds and thrashers, and a pan-American clade of mockingbirds and thrashers. The Sturnidae are subdivided into six clades. The Phillipine endemic Rhabdornis are the sister lineage to a larger and substantially more recent radiation of South Asian and Pacific island starlings and mynas. A clade of largely migratory or nomadic Eurasian starlings (within which the basal lineage is the model taxon Sturnus vulgaris) is allied to three groups of largely African species. These reconstructions confirm that Buphagus should not be included in the Sturnidae, and identify many genera that are not monophyletic. They also highlight the substantial diversity among the major Sturnidae subclades in rates of species accumulation, morphological differentiation, and behavioral variation.
Julia Inés Diaz - One of the best experts on this subject based on the ideXlab platform.
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Helminth parasites of the European starling (Sturnus vulgaris) (Aves, Sturnidae), an invasive bird in Argentina
Parasitology research, 2014Co-Authors: Romina Valente, Diego Montalti, Lucía Mariel Ibañez, Eliana Andrea Lorenti, Vanina D. Fiorini, Julia Inés DiazAbstract:The aim of this work is to contribute to the knowledge of gastrointestinal parasites of the European starling Sturnus vulgaris, an invasive bird from Argentina. Seventy-six birds were collected during the spring of 2007 and were examined for helminths. Six parasite species were found: one trematoda of the Echinostoma revolutum “group,” four nematodes (Synhimantus nasuta, Microtetrameres sp., Pterothominx exilis, and Ornithocapillaria ovopunctata), and one acanthocephalan (Plagiorhynchus cylindraceus). All species found have been recorded in Eurasia and/or North America previously, although present reports enlarge their geographical distribution. As expected in an invasive host, the parasite community shows much lower species richness (n = 6) than those observed in their native area (79 and 35 in the Eurasia and North America, respectively).
Mian A. Hafeez - One of the best experts on this subject based on the ideXlab platform.
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Description of two new Isospora species causing visceral coccidiosis in captive superb glossy starlings, Lamprotornis superbus (Aves: Sturnidae)
Parasitology Research, 2014Co-Authors: Mian A. Hafeez, Iga Stasiak, Pauline Delnatte, Shiem El-sherry, Dale A. Smith, John R BartaAbstract:Isospora greineri sp. n. and Isospora superbusi sp. n. are described from captive superb glossy starlings, Lamprotornis superbus , from the Toronto Zoo succumbing to visceral coccidiosis. Sequence data from nuclear 18S recombinant DNA (rDNA) and mitochondrial cytochrome c oxidase subunit I (COI) loci from sporulated oocysts and infected tissues (liver, lung, or spleen) demonstrated two distinct Isospora sp. genotypes that varied in their relative abundance. In the tissues of one affected bird, as well as its associated fecal sample, two distinct COI sequences (1.7 % divergence) and two distinct 18S rDNA sequences (0.6 % divergence) were found at almost the same abundance; in other specimens, one of the 18S and one of the COI sequences were less abundant than the other. In the tissues of some birds, only a single COI and single 18S sequence were present. In all cases, the same pair of 18S rDNA and COI sequences fluctuated in abundance in parallel, indicating that there were two distinct species present rather than one species with more than one COI or 18S locus. The oocysts of these new species cannot be differentiated morphologically. Sporulated oocysts of both were spherical to subspherical measuring 17.7 ± 0.22 μm by 17.1 ± 0.20 μm with a mean L/W ratio of 1.03 ± 0.004. Sporocysts were ovoid measuring 13.5 ± 0.17 μm by 9.3 ± 0.15 μm with a mean L/W ratio of 1.4 ± 0.02. Sporocysts had a small Stieda body with indistinct sub-Stieda body; each sporocyst had a compact residuum. Two morphologically similar but genetically divergent Isospora species were shown to cause simultaneous enteric and extraintestinal infections in captive superb glossy starlings.
Diego Montalti - One of the best experts on this subject based on the ideXlab platform.
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primer registro de dano a cultivo de frutales por el estornino pinto sturnus vulgaris passeriformes Sturnidae en argentina
Acta Zoológica Lilloana, 2016Co-Authors: Lucía Mariel Ibañez, Fabricio Andreucci, Diego MontaltiAbstract:“First record of damage to a fruit crop by the European starling ( Sturnus vulgaris ) [Passeriformes: Sturnidae] in Argentina”. The European starling ( Sturnus vulgaris ) is an exotic invasive bird that was first record in Argentina in 1987 and nowadays it is expand- ing in the country. In November 2014 we observed pairs and small flocks of starlings eating blueberries for first time in a field placed in the locality of City Bell (La Plata, Buenos Aires province). In December of this year a flock between 80 and 100 starlings consumed the 75% of the last stage of blueberries production. It is the first record of damage to a fruit crop by the starling in Argentina.
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Helminth parasites of the European starling (Sturnus vulgaris) (Aves, Sturnidae), an invasive bird in Argentina
Parasitology research, 2014Co-Authors: Romina Valente, Diego Montalti, Lucía Mariel Ibañez, Eliana Andrea Lorenti, Vanina D. Fiorini, Julia Inés DiazAbstract:The aim of this work is to contribute to the knowledge of gastrointestinal parasites of the European starling Sturnus vulgaris, an invasive bird from Argentina. Seventy-six birds were collected during the spring of 2007 and were examined for helminths. Six parasite species were found: one trematoda of the Echinostoma revolutum “group,” four nematodes (Synhimantus nasuta, Microtetrameres sp., Pterothominx exilis, and Ornithocapillaria ovopunctata), and one acanthocephalan (Plagiorhynchus cylindraceus). All species found have been recorded in Eurasia and/or North America previously, although present reports enlarge their geographical distribution. As expected in an invasive host, the parasite community shows much lower species richness (n = 6) than those observed in their native area (79 and 35 in the Eurasia and North America, respectively).
