Helminth Survey of the Northern Bobwhite (Colinus virginianus) from the Rolling Plains of Texas, U.S.A.

Bruno, Andrea; Rollins, Dale; Wester, David B.; Fedynich, Alan M.

doi:10.1654/1525-2647-86.1.10

Cited by 7 publications

(23 citation statements)

References 28 publications

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“…Tetrameres pattersoni, O. petrowi and D. nasuta were found, which are known to cause morbidity (Davidson et al, 1991;Bruno et al, 2015;Dunham et al, 2016;Brym et al, 2018;Bruno et al, 2019) and mortality (Kellogg & Prestwood, 1968) in bobwhites. In South Texas, only T. pattersoni and O. petrowi were found prior to the present study in which D. nasuta is reported for the first time in South Texas.…”

Section: Pathogenic Speciesmentioning

confidence: 99%

“…In addition, studies that focused on O. petrowi infections have reported intermediate to high (up to 95%) prevalence in the Rolling Plains ecoregion (Dunham et al, 2016. However, D. nasuta appears to be rare (<1%) in bobwhites within the Rolling Plains (Villarreal et al, 2016;Bruno et al, 2018Bruno et al, , 2019 and South Texas (table 1). As noted previously, variation in study designs makes it difficult to draw conclusions from direct comparisons, though trends do seem apparent.…”

Section: Pathogenic Speciesmentioning

confidence: 99%

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Assessment of the helminth fauna in northern bobwhites (Colinus virginianus) occurring within South Texas

2021

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Populations of northern bobwhites (Colinus virginianus; hereafter bobwhite) have been declining across their geographic range in North America, prompting consideration of the role parasites may play. We conducted this study to learn about the helminth fauna in South Texas, a region that supports a sustainable bobwhite population. Helminths were examined from 356 bobwhites collected during the 2014–2015 (n = 124) and 2015–2016 (n = 232) hunting seasons, when increasing trends in precipitation were observed in comparison with the previous two years. Ten helminth species were found, consisting of 14,127 individuals. Of these, all are heteroxenous parasites and three are pathogenic (Dispharynx nasuta, Tetrameres pattersoni and Oxyspirura petrowi). Aulonocephalus pennula numerically dominated the component community (81% prevalence, 99% of the total helminths found), whereas each of the remaining species occurred rarely (≤9% prevalence) and contributed few individuals (≤0.4%) to the helminth community. Prevalence and abundance of A. pennula were not influenced by host age, sex or body mass, but abundance was higher during the 2014–2015 than the 2015–2016 hunting season. Our findings indicate that the helminth community in bobwhites from South Texas can vary during long-term, highly variable precipitation conditions and these communities are more similar to those found in the Rolling Plains of Texas than those found in the eastern part of the bobwhite's geographic range in the US.

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Section: Pathogenic Speciesmentioning

confidence: 99%

Section: Pathogenic Speciesmentioning

confidence: 99%

Assessment of the helminth fauna in northern bobwhites (Colinus virginianus) occurring within South Texas

2021

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“…were found, we were unable to identify this nematode to species using morphological characteristics (requires an adult male specimen). It was likely T. pattersoni , which has been reported in scaled quail from South Texas (Olsen, 2014) and northern bobwhites in the Rolling Plains ecoregion (Villarreal et al ., 2016; Bruno et al ., 2018, 2019), whereas the other potential species, Tetrameres americana , is typically found in poultry (Macklin, 2019). Tetrameres americana has been reported once in Texas from scaled quail in south-eastern Pecos County, Texas (Edwards Plateau ecoregion) (Howard, 1981), in wild northern bobwhites from Florida (Kellogg & Prestwood, 1968) and in captive bobwhites associated with chickens in the south-eastern USA (Cram et al , 1931).…”

Section: Discussionmentioning

confidence: 99%

“…Tetrameres americana has been reported once in Texas from scaled quail in south-eastern Pecos County, Texas (Edwards Plateau ecoregion) (Howard, 1981), in wild northern bobwhites from Florida (Kellogg & Prestwood, 1968) and in captive bobwhites associated with chickens in the south-eastern USA (Cram et al , 1931). We cannot discount the potential presence of C. spinosa and D. nasuta within the study area because these heteroxenous species have been found to rarely occur in northern bobwhites within the Rolling Plains ecoregion (Villarreal et al ., 2016; Bruno et al ., 2018, 2019).…”

Section: Discussionmentioning

confidence: 99%

Helminth fauna in a semi-arid host species – scaled quail (Callipepla squamata)

et al. 2019

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Helminths were examined from 145 scaled quail (Callipepla squamata) collected during the 2012–2013, 2013–2014 and 2014–2015 hunting seasons from a semi-arid region of Texas that spans four ecoregions. Helminth infracommunities were species poor, averaging 1.7 (range 1–4) species. Six species occurred within the component community of which one (Oxyspirura petrowi) is known to be pathogenic to quail. Aulonocephalus pennula was most abundant (9991 individuals, 95% of total) followed by O. petrowi (391 individuals, 4%). Each of the remaining four species was rare (≤21% prevalence) and contributed few individuals (<1%). In the High Plains ecoregion, prevalence of O. petrowi was higher in host collections made during the 2013–2014 hunting season than either hunting seasons 2012–2013 or 2014–2015 and was higher in the High Plains ecoregion than the Edwards Plateau ecoregion during the 2013–2014 hunting season. Mean abundance of A. pennula and O. petrowi was higher in scaled quail from the High Plains ecoregion than the Edwards Plateau ecoregion. Our results provide new information about helminth fauna in scaled quail, persistence of indirect lifecycle helminth species within a semi-arid region, and the occurrence of pathogenic helminth species within this host species.

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“…petrowi to be ubiquitous in quail throughout the region ( Dunham et al, 2016a ; Olsen and Fedynich, 2016 ). In subsequent studies, Bruno et al (2019b) found 40% of bobwhite sampled from 2011 to 2013 to be infected with O . petrowi , while 73% were infected with A .…”

Section: Using the Woe Framework To Investigate The Role Of Parasitesmentioning

confidence: 97%

“Weight of evidence” as a tool for evaluating disease in wildlife: An example assessing parasitic infection in Northern bobwhite (Colinus virginianus)

Henry

Brym

Skinner

et al. 2020

International Journal for Parasitology: Parasites and Wildlife

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The potential of parasites to affect host abundance has been a topic of heated contention within the scientific community for some time, with many maintaining that issues such as habitat loss are more important in regulating wildlife populations than diseases. This is in part due to the difficulty in detecting and quantifying the consequences of disease, such as parasitic infection, within wild systems. An example of this is found in the Northern bobwhite quail ( Colinus virginanus ), an iconic game bird that is one of the most extensively studied vertebrates on the planet. Yet, despite countless volumes dedicated to the study and management of this bird, bobwhite continue to disappear from fields, forest margins, and grasslands across the United States in what some have referred to as “our greatest wildlife tragedy”. Here, we will discuss the history of disease and wildlife conservation, some of the challenges wildlife disease studies face in the ever-changing world, and how a “weight of evidence” approach has been invaluable to evaluating the impact of parasites on bobwhite in the Rolling Plains of Texas. Through this, we highlight the potential of using “weight of the evidence” to better understand the complex effects of diseases on wildlife and urge a greater consideration of the importance of disease in wildlife conservation.

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Helminth Survey of the Northern Bobwhite (Colinus virginianus) from the Rolling Plains of Texas, U.S.A.

Cited by 7 publications

References 28 publications

Assessment of the helminth fauna in northern bobwhites (Colinus virginianus) occurring within South Texas

Assessment of the helminth fauna in northern bobwhites (Colinus virginianus) occurring within South Texas

Helminth fauna in a semi-arid host species – scaled quail (Callipepla squamata)

“Weight of evidence” as a tool for evaluating disease in wildlife: An example assessing parasitic infection in Northern bobwhite (Colinus virginianus)

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