Effects of polychlorinated biphenyls on mourning dove reproduction and circulating progesterone levels

Koval, P.J.; Peterle, Tony J.; Harder, John D.

doi:10.1007/bf01698460

Cited by 14 publications

(14 citation statements)

References 10 publications

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“…Asterisks represent extreme outliers (Q3 + 3(IQR) or Q 1-3( IQR)). This is consistent with Koval et al (1987) who reported nest abandonment in PCBtreated (Aroclor 1254) Mourning Doves (Zenaida macroura). Although PCB concentrations were detected in all chicks from all sites, AR1254 and the sum of CB congeners were greater (p < .05) in 15 day old and pre-15 day old chicks collected at PCB sites compared to those collected at reference and metals sites (Figure 1).…”

Section: Methodssupporting

confidence: 81%

PCB and Heavy Metal Contamination and Effects in European Starlings ( Sturnus vulgaris ) at a Superfund Site

Arenal

Halbrook

1997

Bulletin of Environmental Contamination and Toxicology

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Section: Methodssupporting

confidence: 81%

PCB and Heavy Metal Contamination and Effects in European Starlings ( Sturnus vulgaris ) at a Superfund Site

Arenal

Halbrook

1997

Bulletin of Environmental Contamination and Toxicology

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“…Polychlorinated biphenyls (PCBs) are known to disrupt the functions of the endocrine system (Koval et al, 1987). Although exposure to PCBs is known to alter plasma estradiol and testosterone levels (McKinney & Waller, 1994, 1998, little information exists regarding PCB effects on prolactin.…”

mentioning

confidence: 99%

Brood Patches of American Kestrels Altered by Experimental Exposure to PCBs

Fisher

Bortolotti

Fernie

et al. 2006

Journal of Toxicology and Environmental Health, Part A

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Captive breeding (n = 25 pairs) and nonbreeding (n = 25) American kestrels were exposed to a mixture of polychlorinated biphenyls (PCBs) (Aroclor 1248(Aroclor :1254(Aroclor :1260 The function of incubation behavior in birds is to keep the eggs near the optimal temperature for embryonic development. However, parental attendance is not the only factor influencing the warming of the eggs. Since feathers are a poor conductor of heat, the development of bare areas of skin, known as brood patches, aids in transferring the body heat of the incubating parent to the

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“…The delay in clutch initiation observed with the in ovo PCB female kestrels paired with clean males indicates that there are also physiological mechanisms involved. Indeed, the increased yolk size of PCB females may indicate that PCB exposure affected the hormone levels, receptors, and/or temporal patterns in the female kestrels governing ovarian activity, follicular, and egg development (Fernie et al 2000b), which has been observed in other birds exposed to PCBs (Koval et al 1987). Endocrine changes may also be linked to behavioral changes involving courtship and receptiveness in both the female and male kestrels, although there were no differences in testosterone or estradial observed in the dietary PCB pairs (Fisher et al unpublished data).…”

Section: Discussionmentioning

confidence: 94%

“…PCBs are widespread contaminants that are lipophilic and persistent. They also bioaccumulate through the food web (Hoffman et al 1996) and are potential endocrine-modulating substances (Koval et al 1987). Reproduction of wild passerines (McCarty and Secord 1999;Bishop et al 1999), raptorial (Kozie and Anderson 1991;Bowerman et al 1994;Giesy et al 1995;Hoffman et al 1998), and piscivorous Dirksen et al 1995;Custer et al 1999) birds has been altered by exposure to multiple contaminants, including PCBs.…”

mentioning

confidence: 99%

In Ovo Exposure to Polychlorinated Biphenyls: Reproductive Effects on Second-Generation American Kestrels

Fernie

Smits

Bortolotti

et al. 2001

Archives of Environmental Contamination and Toxicology

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Abstract.The reproductive success of wild birds has been affected by exposure to multiple contaminants. Reproduction of captive American kestrels (Falco sparverius) was suppressed when adult birds were exposed to dietary polychlorinated biphenyls (PCBs). In this study, the reproductive effects of in ovo exposure to PCBs is explored, along with determining effects on reproduction in second-generation birds indirectly exposed to PCBs. Reproductive changes in this subsequent generation are examined separately in male and female birds. Captive American kestrels (F. sparverius) were hatched from clutches with eggs containing environmentally relevant levels of total PCBs (34.0 g/g whole egg WW versus 0 g/g controls); parent birds had been fed PCB-spiked (Aroclor 1248:1254:1260) food (7 mg/kg BW day Ϫ1) for 100 days until their eggs hatched. In 1999, the second-generation PCB birds were paired with unexposed kestrels having reproductive experience. In ovo PCB exposure suppressed egg laying completely in 25% of PCB females and resulted in delays in clutch initiation and smaller clutch sizes for PCB male and female pairs. There was no evidence in this study of in ovo PCB treatment effects on fertility or hatching success. The decline in reproductive success was also reflected in the reduced fledging success and higher incidence of complete brood mortality of PCB nestlings. Differences between in ovo-exposed PCB males and females but not between controls were evident in reproductive success. In ovo PCB exposure appears to have had greater effects on female kestrels until clutch completion, with a greater time lag between pairing and egg laying, reduced numbers of pairs laying eggs, and smaller clutches being laid. In ovo PCB exposure has greater effects later in the breeding season on male kestrels, which had poorer hatching and fledging success relative to the PCB females. Possible behavioral and physiological mechanisms involved in these reproductive changes are discussed.

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Effects of polychlorinated biphenyls on mourning dove reproduction and circulating progesterone levels

Cited by 14 publications

References 10 publications

PCB and Heavy Metal Contamination and Effects in European Starlings ( Sturnus vulgaris ) at a Superfund Site

PCB and Heavy Metal Contamination and Effects in European Starlings ( Sturnus vulgaris ) at a Superfund Site

Brood Patches of American Kestrels Altered by Experimental Exposure to PCBs

In Ovo Exposure to Polychlorinated Biphenyls: Reproductive Effects on Second-Generation American Kestrels

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