2019
DOI: 10.1016/j.scitotenv.2019.03.123
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Blood and bone lead levels in South Africa's Gyps vultures: Risk to nest-bound chicks and comparison with other avian taxa

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Cited by 19 publications
(9 citation statements)
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“…Hunting is a common land use across the Kimberley area (Murn & Anderson, 2008), and this activity has been linked to increased blood‐lead levels in vultures elsewhere (Garbett et al, 2018). Specifically, recent work has shown that nestlings at Dronfield do exhibit increased blood‐lead levels (van den Heever et al, 2019), and this makes it essential to assess the extent to which lead toxicity may be the cause of low fledgling rates not only in Kimberley but elsewhere over the range of this critically endangered vulture.…”
Section: Discussionmentioning
confidence: 99%
“…Hunting is a common land use across the Kimberley area (Murn & Anderson, 2008), and this activity has been linked to increased blood‐lead levels in vultures elsewhere (Garbett et al, 2018). Specifically, recent work has shown that nestlings at Dronfield do exhibit increased blood‐lead levels (van den Heever et al, 2019), and this makes it essential to assess the extent to which lead toxicity may be the cause of low fledgling rates not only in Kimberley but elsewhere over the range of this critically endangered vulture.…”
Section: Discussionmentioning
confidence: 99%
“…Cape vultures are known to exhibit signs of osteodystrophy as a result of lead exposure (Naidoo et al, 2017). Recent studies have highlighted the detrimental effect of lead poisoning on heme production and an associated diminished oxygen binding capacity of blood in Gyps vulture chicks (van den Heever et al, 2019). Monitoring programs are important to track vultures that may have been exposed to lead at sublethal levels, but still have the potential to adversely impair long‐term health and reproductive success (Descalzo et al, 2021; Plaza & Lambertucci, 2018) or increase an individual's susceptibility to diseases and accidents (Clark & Scheuhammer, 2003; Pain et al, 2007).…”
Section: Documented Threats Of Contaminants To Old World Vulturesmentioning
confidence: 99%
“…This situation can be exacerbated by the reluctance of organizations trusted by the hunter community, to acknowledge the threats of lead ammunition to avian scavengers. For example, the South African Hunters and Game Conservation Association have an official stance that although they recognize the studies indicating increased blood lead levels in vultures, studies have in their opinion not sufficiently managed to link this to lead ammunition in carcasses (van de Geissen, 2019). Getting such organizations to promote best management practices and engaging properly with such stakeholders must be a priority if we are to ensure food placed at SFS is safe for vultures.…”
Section: Msap Multi-species Action Planmentioning
confidence: 99%