Effect of Limited Food Intake on Cyclic Annual Changes in Ring-Necked Pheasant Hens

Breitenbach, Robert P.; Nagra, Clarence L.; Meyer, Roland K.

doi:10.2307/3797776

Cited by 37 publications

(12 citation statements)

References 11 publications

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“…There is good evidence for earlier laying in a range of bird species when given supplementary food (Boutin 1990) and the fact that food availability may affect the timing of nesting in pheasants has been demonstrated in experiments that restricted diet (Breitenbach, Nagra & Meyer 1963; Gates & Woehler 1968; Barrett & Bailey 1972). These workers concluded that pheasants will not commence egg‐laying until they have built up large fat deposits.…”

Section: Discussionmentioning

confidence: 99%

Effects of supplementary feeding on territoriality, breeding success and survival of pheasants

Hoodless

Draycott

Ludiman

et al. 1999

Journal of Applied Ecology

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Section: Discussionmentioning

confidence: 99%

Effects of supplementary feeding on territoriality, breeding success and survival of pheasants

Hoodless

Draycott

Ludiman

et al. 1999

Journal of Applied Ecology

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“…Plasma protein values of chickens also fluctuated relative to dietary protein intake (Leveille et al 1960, Leveille andSauberlich 1961). We hypothesized that total plasma protein may be a good indicator of sage-grouse renesting likelihood because dietary protein can limit egg production (Breitenbach et al 1963) and influence clutch size Middleton 1982, Aboul-Ela et al 1992) of galliformes. Our objectives were to 1) examine the relationship among total plasma protein, hen age, date of nest initiation, and age of nest at loss on renesting by greater sagegrouse; and 2) develop a predictive model of renesting likelihood to provide inference on temporal and spatial variability of sagegrouse renesting rates.…”

mentioning

confidence: 99%

Total Plasma Protein and Renesting by Greater Sage-Grouse

Gregg

Dunbar

Crawford

et al. 2006

Journal of Wildlife Management

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Greater sage‐grouse (Centrocercus urophasianus) population declines have been attributed to reduced productivity. Although renesting by sage‐grouse may contribute significantly to annual productivity during some years, little information is available on this aspect of sage‐grouse reproductive ecology. We investigated the relationship between total plasma protein, age of hen, time of first nest initiation, and time of first nest loss on occurrence of renesting. We captured, assigned age, extracted blood, and radiomarked prelaying, female sage‐grouse on 4 study areas during 1999–2004. We monitored radiomarked females from mid‐April through June to identify period of nest initiation (early, mid, or late), nest loss (early or late), and renesting activity. We only considered hens that were available to renest (n = 143) for analysis, and we censored those that nested successfully or died during their first nest attempt. Depredation and abandonment accounted for 85% (122/143) and 15% (21/143) of the unsuccessful first nests, respectively. The proportion of hens renesting was 34% (48/143) across all study areas and years. Akaike's Information Criterion model selection indicated that occurrence of renesting varied by age, nest initiation period, nest loss period, and total plasma protein. The best model had low predictive power for any given hen (r2 = 0.296), but validation of the best model indicated that our predictor variables were important for distinguishing renesting status and likely explained substantial temporal and spatial variation in renesting rates. A greater proportion of adults than yearlings renested, and hens that nested early in the nesting season and lost nests early during incubation were the most likely to renest. Hens that renested had greater total plasma protein levels than non‐renesting hens independent of age, nest initiation period, and nest loss period. Because sage‐grouse depend on exogenous sources of protein for reproduction, land management practices that promote high‐quality, prelaying hen habitat could increase dietary protein intake and sage‐grouse renesting rates.

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“…However, absolute weight differences which are associated with stress and condition of captive birds may be meaningless in free-living populations. Breitenbach et al (1963) showed that female ringnecked pheasants (Phasianus colchicus) losing weight on restricted diets produced eggs of the same size as females fed ad lib. They suggested this may have been an adaptive strategy that risks health of breeding females in favour of producing viable offspring.…”

Section: Discussionmentioning

confidence: 99%

Factors influencing growth of juvenile spruce grouse

Quinn¹,

Keppie²

1981

Can. J. Zool.

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The influences of date of hatch, and age and prelaying body weight of brood female on the growth rate of juvenile spruce grouse (Canachites canadensis) were studied in central New Brunswick in 1977 and 1978. Because of differential timing of hatch of broods of adult and yearling females, it was not clear whether a difference in juvenile growth rates during 5–14 days of age in 1977 was related to date of hatch, age of brood female, or both. Differences in juvenile growth rates within and between years apparently were not influenced by body weight of brood females prior to egg laying. Results suggest that posthatch factors are more important in determining growth rate than a prehatch or "maternal" influence.

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Effect of Limited Food Intake on Cyclic Annual Changes in Ring-Necked Pheasant Hens

Cited by 37 publications

References 11 publications

Effects of supplementary feeding on territoriality, breeding success and survival of pheasants

Effects of supplementary feeding on territoriality, breeding success and survival of pheasants

Total Plasma Protein and Renesting by Greater Sage-Grouse

Factors influencing growth of juvenile spruce grouse

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