HELMINTH INFECTIONS IN NORTHERN BOBWHITES (<i>COLINUS VIRGINIANUS</i>) FROM A LEGACY LANDSCAPE IN TEXAS, USA

Olsen, Andrew C.; Fedynich, Alan M.

doi:10.7589/2015-11-317

Cited by 13 publications

(41 citation statements)

References 10 publications

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“…Concerns have been raised regarding negative impacts of A. pennula on bobwhites (Dunham et al , 2017). Similar to Olsen & Fedynich (2016), we observed distension in the terminal portions of the ceca when A. pennula infections were high (>300 worms). Nematodes may take advantage of regulatory molecules to evade the host immune system (Maizels et al , 2001), creating tolerance and allowing infections to persist.…”

Section: Discussionsupporting

confidence: 90%

“…Species composition also differed between the component communities in the southeastern U.S. and our study. Aulonocephalus pennula was the numerically dominant species in our study and is a common (>75% prevalence) and abundant species found in quail species from Texas (Webster & Addis, 1945; Lehmann, 1984; Landgrebe et al , 2007; Bedford, 2015; Olsen & Fedynich, 2016; Villarreal et al , 2016) and New Mexico (Campbell & Lee, 1953), but is not found in bobwhites from Florida, Georgia (Kellogg & Prestwood, 1968), North Carolina (Cram et al , 1931; Blakeney & Dimmick, 1971) or Kansas (Williams et al , 2004). Component communities in the southeastern U.S. also consist of more monoxenous nematode species (range: 2–4), which occurred in high intensities (>30; Moore et al , 1986; Moore & Simberloff, 1990; Davidson et al , 1991).…”

Section: Discussionmentioning

confidence: 62%

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Helminth community and host dynamics in northern bobwhites from the Rolling Plains Ecoregion, U.S.A.

et al. 2018

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One hundred and sixty-one northern bobwhites (Colinus virginianus; hereafter 'bobwhite') were examined from the Rolling Plains ecoregion of Texas and western Oklahoma from 2011 to 2013. Complete necropsies yielded 13 species, of which two are new host (Gongylonema phasianella) and region (Eucoleus contortus) records and three (Dispharynx nasuta, Tetrameres pattersoni and Oxyspirura petrowi) are known to cause morbidity and mortality. Of the species found, Aulonocephalus pennula commonly occurred, Oxyspirura petrowi was intermediate in prevalence, and the remaining species were rare. Species richness was similar compared to studies from the southeastern U.S., but higher than studies from the same region. In addition, 12 of the 13 species were heteroxenous helminths, supporting the theory that heteroxenous helminths in semi-arid regions are more successful than monoxenous helminths. Prevalence and abundance of A. pennula and O. petrowi were higher in adult bobwhites than in juveniles. Abundance of A. pennula and O. petrowi was higher at southern locations compared to northern locations in the study area. Our study is the first to provide a current assessment of the bobwhite helminth community across the Rolling Plains ecoregion of the U.S.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 62%

Helminth community and host dynamics in northern bobwhites from the Rolling Plains Ecoregion, U.S.A.

et al. 2018

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“…Similar helminth community structure and patterns found in our study were reported in scaled quail by Landgrebe et al . (2007), in northern bobwhites ( Colinus virginianus ) within South Texas (Olsen & Fedynich, 2016), and except for species richness, in northern bobwhites within the Rolling Plains of Texas and western Oklahoma (species richness = 13; Bruno et al ., 2018). These studies found most if not all species were heteroxenous, one species ( A. pennula ) was highly prevalent and abundant, and most of the remaining species rarely occurred and contributed few individuals to the helminth component community.…”

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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“…pennula and O . 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 .…”

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

confidence: 99%

“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 INFECTIONS IN NORTHERN BOBWHITES (COLINUS VIRGINIANUS) FROM A LEGACY LANDSCAPE IN TEXAS, USA

Cited by 13 publications

References 10 publications

Helminth community and host dynamics in northern bobwhites from the Rolling Plains Ecoregion, U.S.A.

Helminth community and host dynamics in northern bobwhites from the Rolling Plains Ecoregion, U.S.A.

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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