Lead Concentration in the Bones of the Feral Pigeons ( Columba livia ): Sources of Variation Relating to Body Condition and Death

1998 ◽  
Vol 35 (1) ◽  
pp. 70-74 ◽  
Author(s):  
M. Janiga ◽  
M. Zˇemberyová
Keyword(s):  
Body Condition ◽  
Lead Concentration ◽  
Columba Livia ◽  
Feral Pigeons ◽  
Sources Of Variation

scholarly journals High prevalence and genetic diversity of Haemoproteus columbae (Haemosporida: Haemoproteidae) in feral pigeons Columba livia in Cape Town, South Africa

2019 ◽  
Vol 119 (2) ◽  
pp. 447-463 ◽  
Author(s):  
Carina Nebel ◽  
Josef Harl ◽  
Adrien Pajot ◽  
Herbert Weissenböck ◽  
Arjun Amar ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cytochrome B ◽  
Body Condition ◽  
Cape Town ◽  
Infection Intensity ◽  
Columba Livia ◽  
The Body ◽  
Blood Parasites ◽  
Haemoproteus Columbae ◽  
Feral Pigeons

AbstractIn 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.

scholarly journals Antimicrobial susceptibility and diarrheagenic diagnosis of Escherichia coli and Salmonella enterica isolated from feral pigeons (Columba livia) captured in Fortaleza, Brazil

2018 ◽  
Vol 38 (11) ◽  
pp. 2150-2154 ◽  
Author(s):  
Ruben V. Horn ◽  
Windleyanne G.A. Bezerra ◽  
Elisângela S. Lopes ◽  
Régis S.C. Teixeira ◽  
Isaac N.G. Silva ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Resistance ◽  
Clavulanic Acid ◽  
Antimicrobial Susceptibility ◽  
Salmonella Enterica ◽  
Columba Livia ◽  
Susceptibility Test ◽  
Antimicrobial Susceptibility Test ◽  
E Coli ◽  
Feral Pigeons

ABSTRACT: This study aimed to isolate Escherichia coli and Salmonella enterica from captured feral pigeons in Fortaleza, Brazil, and, in addition to evaluate the antimicrobial susceptibility profiles and diagnose diarrheagenic E. coli strains. Pigeons were captured in four public locations in Fortaleza with three techniques. Individual cloacal swab samples were collected and submitted to bacterial isolation, biochemical identification and antimicrobial susceptibility test. Disk diffusion technique was used with twelve antibiotics. E. coli strains were submitted to DNA extraction followed by PCR to diagnose five diarrheagenic pathotypes. A total of 124 birds were captured. One bird was positive for Salmonella enterica (0.81%) and 121 (97.58%) were positive for E. coli. Among these, 110 isolates were submitted to antimicrobial susceptibility test and 28.18% (31/110) presented resistance to at least one antibiotic. Resistance to azithromycin was the most frequent (21.82%), followed by tetracycline (10.91%) and sulfamethoxazole with trimethoprim (8.9%). Multidrug resistance, calculated as a resistance to at least 3 antimicrobial classes, was identified in 3.64% (4/110) of strains. The maximum number of antimicrobial classes to which one strain was resistant was seven. Results demonstrated nine different resistance profiles and the most frequent was tetracycline and sulfamethoxazole with trimethoprim (4 strains), followed by chloramphenicol, azithromycin, tetracycline and sulfamethoxazole with trimethoprim (3 strains). Amoxicillin with clavulanic acid and tobramycin presented lowest levels of antimicrobial resistance, to which none of the tested strains were resistant. A single strain was positive for the eltB gene, which is a diagnostic tool to identify the Enterotoxigenic E. coli (ETEC) pathotype. None of the other investigated genes (stx1, stx2, estA, eaeA, ipaH, aatA and aaiC) were identified. The single isolate of S. enterica was a rough strain of Salmonella enterica subsp. enterica, but serotype identification was not possible. However, this isolate presented resistance to amoxicillin, amoxicillin with clavulanic acid, tetracycline and sulfamethoxazole with trimethoprim. Therefore, captured feral pigeons of Fortaleza presented a low prevalence of S. enterica and diarrheagenic E. coli. Considering the investigated pathogens, our results suggest a good health status and a low public health risk. However, important antimicrobial resistance profiles were identified.

scholarly journals Sources of Variation in Survival of Breeding Female Wood Ducks

The Condor ◽  
2006 ◽  
Vol 108 (1) ◽  
pp. 201-210 ◽  
Author(s):  
Kevin M. Hartke ◽  
James B. Grand ◽  
Gary R. Hepp ◽  
Travis H. Folk
Keyword(s):  
Body Condition ◽  
Weight Of Evidence ◽  
Breeding Cycle ◽  
Breeding Period ◽  
Information Theoretic ◽  
Wood Ducks ◽  
Daily Survival ◽  
Radio Transmitters ◽  
Sources Of Variation ◽  
Nest Initiation

Abstract In waterfowl, reproduction is physiologically demanding and females are exposed to varying risks of mortality at different periods of the breeding cycle. Moreover, differences among females may influence survival within breeding periods. We captured and fitted female Wood Ducks (Aix sponsa) with radio-transmitters before nest initiation during two breeding seasons to estimate survival and investigate sources of variation in survival. We partitioned the breeding season into three periods (preincubation, incubation, postnesting) according to breeding status of individual females, and used information-theoretic methods to compare models in which daily survival varied among periods, between successful and failed nesting females, and with parameters describing individual heterogeneity. Our analysis suggested that daily survival was best modeled as a function of breeding period, differences between successful and failed nesting females during postnesting, and early incubation body condition of successful females during postnesting. Model-averaged daily survival was 0.9988 (95% CL: 0.9963–0.9996) during preincubation and 1.0 during incubation. Postnesting daily survival was 1.0 for failed nesting females and 0.9948 (0.9773–0.9988) for successful females, suggesting a trade-off between current reproduction and survival. Female age, body condition at capture, nest initiation date, and brood size generally were not useful for explaining variation in survival. Only early incubation body condition was important for modeling survival of successful females during postnesting; however, weight of evidence was limited and the effect on survival was weak. Mortality was greatest for females during preincubation and for females that nested successfully. Results support the hypothesis that brood care is costly for females.

An epidemiologic study ofChlamydia sp. in feral pigeons(Columba livia var.domestica)

2000 ◽  
Vol 46 (2) ◽  
pp. 84-95 ◽  
Author(s):  
Marina Pavlak ◽  
Ksenija Vlahović ◽  
Jelena Gregurić ◽  
Ž. Županičić ◽  
J. Jerčić ◽  
...  
Keyword(s):  
Epidemiologic Study ◽  
Columba Livia ◽  
Feral Pigeons

Prevalence of Salmonella spp. Antibodies to Toxoplasma gondii, and Newcastle Disease Virus in Feral Pigeons (Columba livia) in the City of Jaboticabal, Brazil

2010 ◽  
Vol 41 (4) ◽  
pp. 603-607 ◽  
Author(s):  
Eliane de Sousa ◽  
Angelo Berchieri Júnior ◽  
Aramis Augusto Pinto ◽  
Rosangela Zacarias Machado ◽  
Adriano de Oliveira Torres Carrasco ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Newcastle Disease Virus ◽  
Disease Virus ◽  
Newcastle Disease ◽  
Columba Livia ◽  
Salmonella Spp ◽  
Feral Pigeons ◽  
The City

Seasonal population dynamics of four species of chewing lice (Phthiraptera: Menoponidae, Philopteridae) on feral pigeons (Aves: Columbiformes: Columbidae)

2015 ◽  
Vol 147 (6) ◽  
pp. 712-722 ◽  
Author(s):  
Terry D. Galloway ◽  
Robert J. Lamb
Keyword(s):  
Seasonal Dynamics ◽  
Late Summer ◽  
Columba Livia ◽  
Seasonal Patterns ◽  
Chewing Lice ◽  
Feral Pigeons ◽  
History Of ◽  
Continuous Feeding ◽  
Seasonal Population ◽  
Seasonal Population Dynamics

AbstractSeasonal dynamics of louse (Phthiraptera) populations on feral pigeons, Columba livia Gmelin (Aves: Columbiformes: Columbidae) were investigated from 2003 to 2012 in southern Manitoba, Canada. Pigeons were infested with: Philopteridae – Campanulotes compar (Burmeister), Columbicola columbae (Linnaeus), and Coloceras tovornikae Tendeiro; Menoponidae – Hohorstiella lata (Piaget). We consider the hypothesis that four species living on the same host show similar seasonal dynamics, coordinated by the life history of the host. Adults of both sexes and nymphs of all four species were present on pigeons throughout the year, consistent with continuous feeding and reproduction. Campanulotes compar and C. columbae populations were low in spring and peaked in September, with C. columbae showing greater seasonal changes for all population parameters. Coloceras tovornikae showed two annual peaks in abundance in spring and late summer, and H. lata was most abundant in the cold months of the year. Over 10 years, the four species showed distinct seasonal dynamics, although they live on the same birds. Seasonal patterns provided no evidence that louse reproduction or abundance is coordinated by the long breeding and moulting seasons of the host.

Lead levels of feral pigeons (Columba livia) from Madrid (Spain)

1988 ◽  
Vol 54 (2) ◽  
pp. 89-96 ◽  
Author(s):  
M.T. Antonio García ◽  
E. Martinez-Conde ◽  
I. Corpas Vazquez
Keyword(s):  
Columba Livia ◽  
Feral Pigeons ◽  
Lead Levels
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