• Title/Summary/Keyword: Feral pigeons

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Comparison of Heavy Metal Concentration and Reproduction of Feral Pigeons (Columba livia) between Urban and Industrial Complex Areas from Korea

  • Nam, Dong-Ha;Lee, Doo-Pyo;Koo, Tae-Hoe
    • The Korean Journal of Ecology
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    • v.25 no.6
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    • pp.383-389
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    • 2002
  • Pb and Cd concentrations and reproductive progress of feral pigeons were investigated in urban (Seoul) and industrial complex (Ansan) areas from November 2000 to May 2001. Results of the Pb analysis for the feral pigeons from the Ansan industrial complex (egg contents: 1.13 $\mu$g/wet g, bones of adult: 10.5 $\mu$g/wet g) and Seoul (1.64 $\mu$g/wet g, 29.5 $\mu$g/wet g, respectively) indicated that the Pb level of eggs and bones of adults were significantly different between the two colonies (p<0.05). Cd concentrations in liver and kidney of adult pigeons were also significantly different between the Ansan (liver: 0.14 $\mu\textrm{g}$/wet g, kidney: 0.43 $\mu$g/wet g) and Seoul (liver. 0.24 $\mu$g/wet g, kidney: 1.05 $\mu$g/wet g) colonies. (p<0.05). However, egg size and thickness, incubation period and nestling growth rates did not differ between the study areas. Also, clutch size, number of young hatched per nest and number of young fledglings per nest did not significantly different in the noted areas. Considering the lead and cadmium concentrations of pigeons, these were not as high as those considered as results in toxic effects in other species, and the biological significance from these level differences is uncertain.

Comparison of Lead and Cadmium Levels in Tissues of Feral Pigeons(Columba livia) from Rural, Central Urban, and Industrial Complex Areas (섬, 도심, 공단지역에서 서식하는 비둘기의 체내 납, 카드뮴 농도 비교)

  • 남동하;이두표;구태회
    • The Korean Journal of Ecology
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    • v.25 no.5
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    • pp.329-334
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    • 2002
  • In order to compare the lead and cadmium levels, studies of heavy metal accumulation of feral pigeons from rural (Deokjeok island), central urban (Seoul city), and industrial complexes (Ansan, Busan, Ulsan, and Yochon) were conducted. The outstanding result of this study is that feral pigeons in urban and industrial complex areas contain high Pb and Cd concentrations in kidney, bone, liver, and lung tissues compared to those of rural areas. Such a trend was prominent in the target organs, bone and kidney, about 10 times greater than in rural areas. On the other hand, the lead levels of the Yochon Industrial Complex were noticeably lower than those of other industrial complex areas. Not only feral pigeons habit of street and ground feeding, but also atmospheric metal concentration offers an explanation for the heavy metal concentration differences in the study areas.

Heavy Metal Concentrations in Tissues of Feral Pigeons(Columba livia) from Urban Areas in Korea

  • Nam, Dong-Ha;Han, Sang-Hee;Lee, Doo-Pyo;Koo, Tae-Hoe
    • The Korean Journal of Ecology
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    • v.25 no.6
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    • pp.379-382
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    • 2002
  • The present study was to investigate Pb and Cd concentrations in tissues of feral pigeons in urban areas. The Pb levels in bones and livers did not differ between Seoul and Kwangju areas. However, there were significant differences in kidney and liver Cd concentrations between the study sites. These are thought to be a reflection of the metal exposure conditions in the local environment. In particular, metal levels from Seoul were compared with those obtained in the same area between 1991 and 2000 in terms of the long-term biomonitoring approaches. The mean Pb concentrations in bones decreased from 59.1 $\mu$g/wet g in 1991 to 29.5 $\mu$g/wet g in 2000, totaling a reduction in concentrations of approximately 50 percent. However, there were no significant differences in the liver Pb concentrations. Concentrations of Cd in livers and kidneys did not differ between 1991 and 2000.

Comparison of Lead and Cadmium Accumulations in Feral Pigeons (Columba livia) with Different Developmental Stages from Urban and Industrial Complex Areas (도심 지역과 공단 지역에 서식하는 비둘기의 알, 새끼, 성조의 납과 카드뮴 농도 비교)

  • 남동하;이두표;구태희
    • Korean Journal of Environmental Biology
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    • v.21 no.2
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    • pp.142-148
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    • 2003
  • The aim of the study was to determine Pb and Cd accumulation and to assess its trends in relation to age categories in feral pigeons from urban (Seoul) and industrial complex (Ansan) areas. This study shows that Pb and Cd concentrations in bone, kidney, liver, and lung increase with different developmental stages in feral pigeons. Particularly, Pb in the bones and Cd in the kidneys of birds were highly increased from chicks to adults. Mean Pb concentrations in pigeons from Seoul were three times higher in chicks than in eggs and six times greater in adults than in chicks. For Cd concentrations, pigeons in Seoul contained two times higher in chicks than in eggs and seventeen times higher in adults than in chicks. It indicates that Pb and Cd concentrations increase with age, and these are apparent to the results in Seoul than in the Ansan colony.

Correlation between Heavy Metal Levels in Tissues of Feral Pigeons(Columba livia) (비둘기의 체내 조직 중 중금속 농도의 상관관계)

  • 남동하;이두표;구태회
    • The Korean Journal of Ecology
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    • v.25 no.5
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    • pp.335-339
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    • 2002
  • Concentrations of Fe, Zn, Mn, Cd and Pb were determined in the tissues of sixty adult pigeons collected at six colonies in Korea, and examined correlations between elements, and between tissues in feral pigeons. As the results, we found many significant correlations between elements, and between tissues in them, A negative correlation between Cd and Fe concentrations was observed in the kidney, Cd depresses the absorption of Fe from the intestine and, in this way, affects the levels of Fe in particular tissues. This tendency could be expressed in terms of lower hemoglobin and hematocrit values because hematocrit is one of the most sensitive indicators of Cd intoxication. Zn concentrations are strongly associated with higher Cd levels in the kidney and liver. This is thought to be a reflection of the interaction known to occur between these two metals. Zn induction has been shown to antagonize a number of toxic effects of Cd. A positive correlation between Pb and Fe concentrations was detected in the livers at the Busan colony with relatively high Pb and Fe concentrations. Pb has been shown to co-accumulate with Fe in the liver by inhibiting the heme synthesis. Significant correlations, especially in toxic elements, Pb and Cd, were observed for many pairs of tissues. We suggest that these correlations between elements, and between tissues should be considered in biomonitoring for heavy metal pollution.

Parasites of feral pigeon (Columba livia) by fecal examination from some areas in Seoul, Korea

  • Kim, Se-Min;Lee, Sang-Eun;Kim, Neunghee;Kim, Hera;Kim, Youngseob;Lee, Juhyoung;Cho, Shin-Hyeong;Lee, Won-Ja;Park, Bae-Keun;Jung, Bae-Dong;Kim, Hyeon-Cheol
    • Korean Journal of Veterinary Service
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    • v.38 no.2
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    • pp.77-81
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    • 2015
  • This study was conducted to evaluate the prevalence of helminths parasites from collected fecal samples of 410 feral pigeons (Columba livia) in 3 different areas of Gwangjin-gu, Seongdong-gu and Dongdaemun-gu in Seoul from December, 2011 to July, 2012 in Korea. The fecal samples were examined through by the centrifugation method using formalin-ether solution. The overall prevalence of parasites in the pigeons was 29.27% (120/410). Two nematodes (Tetrameres spp. and Capillaria spp.) and one protozoa (Eimeria spp.) were identified. In the case of nematodes, Tetrameres spp. dominated numerically (58, 14.15%), followed by Capillaria spp. (10, 2.44%) and oocysts of Eimeria spp. were detected in 78 cases (19.02%). This investigation introduces the result of examination on the prevalence of parasites in feral pigeons from some areas in Seoul for the first time.

Heavy Metal Contamination of Feral Pigeons Columba livia by Habitat in Seoul (서울지역 집비둘기 Columba livia의 서식지별 중금속 오염)

  • Kim, Jeong-Su;Han, Sang-Hui;Lee, Du-Pyo;Gu, Tae-Hoe
    • The Korean Journal of Ecology
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    • v.24 no.5
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    • pp.303-307
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    • 2001
  • Some Feral Pigeons Columba livia were collected in commercial, industrial, park and resident areas of Seoul and heavy metal concentrations in their liver, kidney, bone and muscle tissues were measured to compare the levels of exposure by habitats. Statistical analyses showed some differences in the levels of heavy metals among these habitats. The levels of iron in liver and zinc in kidney were lower in resident area than in the other ones. Manganese and copper levels in all tissues were the highest in industrial area and park area, respectively. Lead bone level in resident area was the lowest, while that in commercial area was the highest. Cadmium level in kidney was higher in park area than in the other areas. Of these results, the levels of iron, zinc and lead in some tissues were related to traffic density in each habitats.

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Monitoring of Heavy Metal Contaminations using Feathers of Feral Pigeons Columba livia in Seoul (서울지역에 서식하는 집비둘기 Columba livia의 깃털을 이용한 중금속오염 모니터링)

  • 김정수;이두표;구태회
    • The Korean Journal of Ecology
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    • v.26 no.3
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    • pp.91-96
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    • 2003
  • To monitor the heavy metal exposure conditions of Feral Pigeons Columba livia, we collected them at commercial area, industrial area, park area and resident area in Seoul. In feathers, iron concentrations were significantly different among habitats(ANOVA, p<0.05), and were the highest at park area. Manganese concentrations were relatively higher at industrial and park area than other areas(ANOVA, p<0.05). In case of copper levels were the significantly highest at park area(ANOVA, p<0.05). Zinc, lead and cadmium had no difference among habitats. Correlation between livers and feathers concentrations were highly significant to copper(r²=0.983, p<0.01) and cadmium(r²=0.632, p<0.01), but iron, zinc, manganese and lead were not significantly different.

Reproductive Progress and Heavy Metal Contamination of Feral Pigeons (Columba livia) in Seoul and the Ansan Industrial Complex areas (도심 및 공단지역에 서식하는 비둘기의 중금속 축적과 번식 경과 비교)

  • 남동하;이두표;구태회
    • Korean Journal of Environmental Biology
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    • v.21 no.2
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    • pp.149-157
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    • 2003
  • This study focused on relationships between Pb and Cd concentrations and the difference of success reproductive progress in urban (Seoul) and industrial complex (Ansan) areas. Results of the Pb analysis for the feral pigeons from Seoul (egg contents:1.64 $\mu\textrm{g}$ wet $g^{-1}$, adults in bones: 29.5 $\mu\textrm{g}$ wet $g^{-1}$ and the Ansan industrial complex (egg contents: 1.13 $\mu\textrm{g}$ wet $g^{-1}$, adults in bones: 10.5 $\mu\textrm{g}$ wet g-1) showed that the Pb level of eggs and adults is significantly different between the two colonies (p<0.05). Cd concentrations in liver and kidneys of adult pigeons were also significantly different between Seoul(liver: 0.24 ${\mu}g$ wet $g^{-1}$, kidney: 1.05 $\mu\textrm{g}$ wet $g^{-1}$ and the Ansan (liver: 0.14 $\mu\textrm{g}$ wet $g^{-1}$, kidney: 0.43 $\mu\textrm{g}$ wet $g^{-1}$ colonies (P<0.05). Clutch size of Feral Pigeons living in Seoul was similar between the two colonies, 1.9$\pm$0.3 in Seoul and 2.0$\pm$0.0 in Ansan. The length, breadth, and thickness of eggs were not significantly different between the two colonies (p>0.05). Incubation period in Seoul (17.8 days) did not differ from the Ansan (17.4 days). No difference in growth rate (body weight, wing length, and tarsus length) was found between the two test groups (p>0.05). In Seoul, 65.2% were hatching, and 42.1% fledging. The Proportion of hatching and fledging in the Ansan was 60.7% and 45.0%, respectively. The significant differences between the two colonies for reproductive sucess were not found (p>0.05). With regard to the reproductive effects to the heavy metals, the Pb and Cd concentrations feund in the two colonies were not as high as those considered in results of toxic effects in other species.

The Characteristics of Heavy Metal Accumulations in Feral Pigeon (Columba livia) Feathers for Environmental Monitoring (환경모니터링을 위한 집비둘기 깃털의 중금속 축적특성 연구)

  • Lee, Jangho;Lee, Jongchun;Lee, Sang Hee;Kim, Myungjin;Lee, Eugene;Han, Areum;Shim, Kyuyoung
    • Journal of Environmental Impact Assessment
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    • v.23 no.6
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    • pp.492-504
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    • 2014
  • Feral pigeon (Columba livia) has been known as a good indicator for accumulations of chemical pollutants in urban areas. However, it is against the animal rights to kill the indicator species in order to monitor pollutants accumulations in wild birds. Eggs and feathers of birds, therefore, have been used as non-invasive monitoring materials. Even though eggs are a good indicator for accumulations of lipophilic pollutants, but unsuitable for some heavy metals such as lead and cadmium because bird's ovary builds a sort of barrier to inhibit higher accumulations of some heavy metals in the eggs. Therefore, feathers instead of eggs have been used as a non-invasive indicator for accumulations of heavy metals. However, there are few studies of heavy metal accumulations of feral pigeon in Korea. In this study, we characterized the characteristics of heavy metal accumulations of feathers in relation to internal organs (bloods, viscera and bones) in feral pigeons between two sites (Hangang Park representing urban area and Hampyeong Park for rural area). The samples from the Hangang Park showed significantly higher lead (Pb) concentrations in the blood, liver and bone than those from Hampyeong Park. The Pb concentration in the feathers was also significantly higher at Hangang Park than at Hampyeong Park. The analytical result for the breast, wing and tail feathers, and the internal organs (blood, lung, liver, kidney and bone) indicated that the Pb concentrations in the feathers were significantly positively correlated with the levels in the kidney and bone. Overall, feathers of feral pigeon may be candidate for bioindicator to monitor for Pb accumulations in urban areas.