Trace elements in blood collected from birds feeding in the area around Doñana National Park affected by the toxic spill from the Aznalcóllar mine

Benito, V.; Devesa, Vicenta; Muñoz, Ociel; Súñer, Maria Angeles; Montoro, R.; Baos, Raquel; Hiraldo, Fernando; Ferrer, Miguel; Fernández, M. A.; González, María José

doi:10.1016/s0048-9697(99)00398-8

Cited by 67 publications

(41 citation statements)

References 29 publications

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“…However, Havera et al (1992) also found higher PbB levels in male lesser scaup (Aythya affinis), but this difference was not observed for Pb shot ingestion. Higher PbB levels were also observed in males of several species of birds from Doñ ana National Park after an accidental mine spill (Benito et al, 1999). In our study, it is possible that male mallards had spent longer at Medina than females, as they may move to the lagoon to moult while females are still rearing their broods at other wetlands.…”

Section: Blood Pb Blood Concentration and Alad Activitymentioning

confidence: 52%

Effects of lead exposure on oxidative stress biomarkers and plasma biochemistry in waterbirds in the field

Martínez-Haro

Green

Mateo

2011

Environmental Research

114

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and in all common pochards (Aythya ferina) (n ¼ 4), but common coots (Fulica atra) (n ¼ 37) and moorhens (Gallinula chloropus) (n ¼ 12) were all o 20 mg/dl. ALAD ratio in mallards and coots decreased with PbB levels 4 6 mg/dl. In mallards, an inhibition of glutathione peroxidase (GPx) and an increased level of oxidized glutathione (oxGSH) in red blood cells (RBC) were associated with PbB levels 4 20 mg/ dl. In coots, PbB levels were negatively related to vitamin A and carotenoid levels in plasma, and total glutathione in RBCs; and positively related with higher superoxide dismutase and GPx activities and % oxGSH in RBCs. Overall, the results indicate that previously assumed background levels of PbB for birds need to be revised.

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Section: Blood Pb Blood Concentration and Alad Activitymentioning

confidence: 52%

Effects of lead exposure on oxidative stress biomarkers and plasma biochemistry in waterbirds in the field

Martínez-Haro

Green

Mateo

2011

Environmental Research

114

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“…(mg/l; except 2n: mg/ml) and range in parentheses; n=11 for Cu and 26 in all other cases: Cu=0.472 T 0.110 (0.260-0.717); Cd=1.134 T 0.804 (0.200-3.849); Zn=3.615 T 0.655 (2.559-4.467); Pb=146.0 T 293.8 (not detected-1780.0); As=18.88 T 27.44 (not detected-42.30). The levels producing sub-lethal effects are unknown for Cu, Cd, Zn, and As, but according to Benito et al (1999) values of Cu and Zn from Canary Egyptian vultures were well below those found in birds living in areas with contamination. In addition, values of Cd and As were those considered as normal in non-polluted zones (1 mg/ l and 20 mg/l respectively); values surpassing those levels were never as high as those found in polluted regions.…”

Section: Heavy Metal Contaminationmentioning

confidence: 84%

“…Benito et al, 1999). Analyses of Zn and Cu were performed by Flame Atomic Absorption Spectrometer (AAS).…”

Section: Heavy Metal Analysesmentioning

confidence: 99%

Conservation status and limiting factors in the endangered population of Egyptian vulture (Neophron percnopterus) in the Canary Islands

Donázar

Palacios

Gangoso

et al. 2002

Biological Conservation

120

129

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Egyptian vulture populations have decreased sharply in the Western Palearctic; island populations are almost extinct in the Mediterranean and the Macaronesian regions. In the Canary archipelago, the species only survives in the islands of Fuerteventura and Lanzarote. During 1998-2001 we examined population parameters and evaluated some potential limiting factors for this isolated and sedentary population. The total population (breeding and non-breeding birds) was monitored annually. In addition, 26 fledglings and 33 immatures ( < 6 years old) and adult birds were captured for individual marking with plastic rings. Twenty-three/ twenty-four occupied territories were located in the island and the total population estimated at around 130 birds. Breeding success was lower than recorded elsewhere in the species' distribution area: only 0.43 fledglings/pair/year were produced. Adult ( > 6 years old birds) and immature annual survival rates were similar, around 90%. Adult survival was lower than expected as territorial birds seem more susceptible to poisoning. Immature survival could be favoured by the existence of regular feeding places. Casualties from power lines was the main cause of mortality (12 cases during the study period). Blood sampling revealed high frequencies of lead poisoning: 13.5 and 2.7% of individuals showed sub-clinical and clinical intoxication levels, respectively, probably caused by the ingestion of lead shot. Priority conservation measures should be directed to reduce electrocution risks, illegal poisoning, and lead contamination. Population reinforcement with birds coming from other populations is not recommended as previous information reveals morphological and genetic differentiation of Canarian Egyptian vultures compared with continental populations.

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“…DOI 10.1002/em Determination of lead, cadmium, and arsenic in heparinized blood specimens was performed by Graphite Furnace Atomic Absorption Spectrometry (GFAAS) with Zeeman-effect background correction, using the method of standard addition [Benito et al, 1999]. In the case of mercury, analysis was performed using Cold Vapor Atomic Absorption Spectrometry (CVAAS).…”

Section: Methodsmentioning

confidence: 99%

Cytogenetic status in newborns and their parents in Madrid: The BioMadrid study

Lope

Pollán

Fernández³

et al. 2009

Environ and Mol Mutagen

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Monitoring cytogenetic damage is frequently used to assess population exposure to environmental mutagens. The cytokinesis-block micronucleus assay is one of the most widely used methods employed in these studies. In the present study we used this assay to assess the baseline frequency of micronuclei in a healthy population of father-pregnant woman-newborn trios drawn from two Madrid areas. We also investigated the association between micronucleus frequency and specific socioeconomic, environmental, and demographic factors collected by questionnaire. Mercury, arsenic, lead, and cadmium blood levels were measured by atomic absorption spectrometry. The association between micronucleated cell frequency and the variables collected by questionnaire, as well as, the risk associated with the presence of elevated levels of metals in blood, was estimated using Poisson models, taking the number of micronucleated cells in 1,000 binucleated cells (MNBCs) as the dependent variable. Separate analyses were conducted for the 110 newborns, 136 pregnant women, and 134 fathers in whom micronuclei could be assessed. The mean number of micronucleated cells per 1,000 binucleated cells was 3.9, 6.5, and 6.1 respectively. Our results show a statistically significant correlation in MNBC frequency between fathers and mothers, and between parents and newborns. Elevated blood mercury levels in fathers were associated with significantly higher MNBC frequency, compared with fathers who had normal mercury levels (RR:1.21; 95%CI:1.02-1.43). This last result suggests the need to implement greater control over populations which, by reason of their occupation or life style, are among those most exposed to this metal.

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Trace elements in blood collected from birds feeding in the area around Doñana National Park affected by the toxic spill from the Aznalcóllar mine

Cited by 67 publications

References 29 publications

Effects of lead exposure on oxidative stress biomarkers and plasma biochemistry in waterbirds in the field

Effects of lead exposure on oxidative stress biomarkers and plasma biochemistry in waterbirds in the field

Conservation status and limiting factors in the endangered population of Egyptian vulture (Neophron percnopterus) in the Canary Islands

Cytogenetic status in newborns and their parents in Madrid: The BioMadrid study

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