Invertebrate Consumption by Breeding Northern Bobwhites and Its Relation to Production

Harveson, Louis A.; Guthery, Fred S.; Hellgren, Eric C.

doi:10.1894/0038-4909(2004)049<0472:icbbnb>2.0.co;2

Cited by 9 publications

(10 citation statements)

References 23 publications

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“…This finding was typical and consistent with data from other regions of the Midwestern and southern United States known to harbor bobwhite (Palmer et al 2001, Harveson et al 2004, Doxon and Carroll 2010, Moorman et al 2013). Abundance of ground-dwelling arthropods collected during our study was greater than for other similar habitats of the southern United States, such as Texas, during the same time period (Hartley et al 2010).…”

Section: Discussionsupporting

confidence: 89%

“…Arthropods of size B were considered ideal for chicks, and arthropods of size C were considered ideal for hens. These estimates were based on trends in studies of gut contents of quail and studies that suggested quail prefer "bite-sized" arthropods (Campbell-Kissock et al 1985, Lusk et al 2001, Palmer et al 2001, Harveson et al 2004, Doxon and Carroll 2010.…”

Section: Methodsmentioning

confidence: 99%

“…Arthropods aerate soil and decompose or pollinate plants in quail habitat (Vergara and Bando 2009;Eisenhauer et al 2010Eisenhauer et al , 2011Canner et al 2012). Bobwhite chicks derive approximately 80% of the protein and 95% of the calories from arthropods in their diets (Campbell-Kissock et al 1985, Harveson et al 2004, Doxon and Carroll 2010. If chicks are deprived of protein, their immune systems can become compromised and the duration of time required for chicks to develop flight feathers can be extended (Lochmiller et al 1993).…”

Section: Introductionmentioning

confidence: 99%

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Ground-Dwelling Arthropod Communities Related to Nesting Success of Northern Bobwhite at Two Western Oklahoma Wildlife Management Areas

Foye

Greenwood

Masloski

et al. 2015

Southwestern Entomologist

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Section: Discussionsupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ground-Dwelling Arthropod Communities Related to Nesting Success of Northern Bobwhite at Two Western Oklahoma Wildlife Management Areas

Foye

Greenwood

Masloski

et al. 2015

Southwestern Entomologist

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“…Most of the estimates of k from our life-stage simulation analysis were ,1, suggesting that several of our 9 demographic parameters were either biased low or depressed below sustainable levels. We set breeding propensity at unity in our model but this parameter would have been biased high if females failed to nest, which occurs in dry years in semiarid environments (Harveson et al 2004, Hernández et al 2007. It is unlikely that total clutch laid or hatchability were biased because both parameters are readily measured from direct inspection of the clutch.…”

Section: Variation and Bias In Demographic Parametersmentioning

confidence: 99%

Demographic Sensitivity of Population Change in Northern Bobwhite

et al. 2008

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The northern bobwhite (Colinus virginianus) is an economically important gamebird that is currently undergoing widespread population declines. Despite considerable research on the population ecology of bobwhites, there have been few attempts to model population dynamics of bobwhites to determine the contributions of different demographic parameters to variance of the finite rate of population change (Λ). We conducted a literature review and compiled 405 estimates of 9 demographic parameters from 49 field studies of bobwhites. To identify demographic parameters that might be important for management, we used life‐stage simulation analyses (LSA) to examine sensitivity of Λ to simulated variation in 9 demographic parameters for female bobwhites. In a baseline LSA based on uniform distributions bounded by the range of estimates for each demographic parameter, bobwhite populations were predicted to decline (Λ = 0.56) and winter survival of adults made the greatest contribution to variance of Λ (r2 = 0.453), followed by summer survival of adults (r2 = 0.163), and survival of chicks (r2 = 0.120). Population change was not sensitive to total clutch laid, nest survival, egg hatchability, or 3 parameters associated with the number of nesting attempts (r2<0.06). Our conclusions were robust to alternative simulation scenarios, and parameter rankings changed only if we adjusted the lower bounds of winter survival upwards. Bobwhite populations were not viable with survival rates reported from most field studies. Survival rates may be depressed below sustainable levels by environmental conditions or possibly by impacts of capture and telemetry methods. Overall, our simulation results indicate that management practices that improve seasonal survival rates will have the greatest potential benefit for recovery of declining populations of bobwhites.

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“…Birds benefit from herbaceous borders around crops because borders provide shelter and nesting sites, provide cover from predators, provide seed as a food resource in winter, and enhance insect food resources overall (3,14). Arthropods are a critical source of essential nutrients for reproducing females and chicks of most gallinaceous birds, including bobwhites (11,25). Diversifying farmland habitat increases biodiversity of arthropods (28) and can enhance game bird chick survival (23).…”

Section: Introductionmentioning

confidence: 99%

Herbaceous Field Borders have Minor Impact on Corn Yield

et al. 2008

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Federal conservation reserve programs such as CP33, Habitat Buffers for Upland Birds, are designed to conserve grassland birds on working farmland by adding herbaceous crop field borders. However, farmers are naturally concerned about the impact of such borders on crop yields and profits. We conducted three years (2000‐2002) of field studies in mid‐Missouri to assess the impact of various compositions of herbaceous field borders on yield in adjacent corn fields. Border treatments of (i) a mixture of warm‐season grasses and legumes, (ii) a mixture of cool‐season grasses and legumes, (iii) tall fescue alone, and (iv) a corn border control were planted around plots of field corn. We compared corn yield in terms of both border treatment and distance into the corn field from the crop‐border interface. While distance from the border had a significant impact on corn yield, border composition did not. Yield was consistently lower near the border for all border treatments, including corn‐bordered corn. We conclude that the adoption of field border programs such as CP33 will have little or no impact on corn production and that the potential benefits of herbaceous borders outweigh the negatives.

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Invertebrate Consumption by Breeding Northern Bobwhites and Its Relation to Production

Cited by 9 publications

References 23 publications

Ground-Dwelling Arthropod Communities Related to Nesting Success of Northern Bobwhite at Two Western Oklahoma Wildlife Management Areas

Ground-Dwelling Arthropod Communities Related to Nesting Success of Northern Bobwhite at Two Western Oklahoma Wildlife Management Areas

Demographic Sensitivity of Population Change in Northern Bobwhite

Herbaceous Field Borders have Minor Impact on Corn Yield

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