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Helminths of American Robins, Turdus Migratorius, and House Sparrows, Passer Domesticus

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Helminths of American Robins, Turdus Migratorius, and House Sparrows, Passer Domesticus Helminths of American Robins, Turdus migratorius, and House Sparrows, Passer domesticus (Order: Passeriformes), from Suburban Chicago, Illinois, U.S.A Author(s): Gabriel L. Hamer and Patrick M. Muzzall Source: Comparative Parasitology, 80(2):287-291. 2013. Published By: The Helminthological Society of Washington DOI: http://dx.doi.org/10.1654/4611.1 URL: http://www.bioone.org/doi/full/10.1654/4611.1 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/ terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Comp. Parasitol. 80(2), 2013, pp. 287–291 Research Note Helminths of American Robins, Turdus migratorius, and House Sparrows, Passer domesticus (Order: Passeriformes), from Suburban Chicago, Illinois, U.S.A. 1,3 2,4 GABRIEL L. HAMER AND PATRICK M. MUZZALL 1 Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan 48824, U.S.A. (e-mail: [email protected]) and 2 Department of Zoology, Michigan State University, East Lansing, Michigan 48824, U.S.A. (e-mail: [email protected]) ABSTRACT: Thirty American robins (Turdus migratorius, descriptions, most birds examined were collected Turdidae) and 10 house sparrows (Passer domesticus, from rural environments. The helminths of house Passeridae) were collected in June and July 2010 and sparrows (Passer domesticus Linnaeus, 1758) have 2011 from SW suburban Chicago, Illinois, and examined for been studied in Illinois and the surrounding states by helminths. In total, 9 helminth species (1 digenetic Hopkins and Wheaton (1935), Kintner (1938), trematode: Lutztrema monenteron; 2 cestodes: Choanotae- nia sp. and Paricterotaenia sp.; 5 nematodes: Chandlerella Huizinga et al. (1971), Koch and Huizinga (1971), quiscali, Porrocaecum ensicaudatum, Splendidofilaria sp., and Cooper and Crites (1974b). Syngamus trachea, and Synhimantus nasuta; and 1 acan- Since helminthological studies on American robins thocephalan: Plagiorhynchus cylindraceus) occurred in 30 and house sparrows from urban environments are American robins. Both Choanotaenia sp. and P. cylindra- infrequent, and the last surveys on their helminths ceus had the highest prevalence (40%). Lutztrema mon- from North America were performed over 25 yr ago enteron had the highest mean intensity (37), followed by (Cooper and Crites, 1974b, 1976a), we believed the Syngamus trachea (8.7), which also had the highest mean examination of American robins and house sparrows abundance (3.2). Juvenile American robins were parasitized by 7 of the 9 species, indicating that the majority of parasites in Illinois would provide more information on the found have a focus of infection in the suburban environ- helminth faunas of these bird species. The objectives ment. Three helminth species (1 trematode: Urogonimus sp.; of the present study were: (1) to document helminths 1 cestode: Paricterotaenia sp.; and 1 nematode: Splendido- of American robins and house sparrows collected in filaria sp.) occurred in 10 house sparrows. Urogonimus sp. residential neighborhoods and urban green spaces and Paricterotaenia sp. each had a prevalence of 20%. (e.g., cemeteries and parks) in suburban Chicago, Urogonimus sp. had the highest mean intensity (18.5) and Illinois; and (2) to characterize the helminths found in mean abundance (3.7) in house sparrows. Gravid individuals juvenile and adult American robins to identify of all helminth species were found. The survey reported herein is consistent with previous helminthological studies helminths with local transmission cycles (i.e., local conducted on the helminths of American robins and house focus of infection), since the American robin is a sparrows, except for the occurrence of Paricterotaenia sp. migratory species. and Chandlerella quiscali in robins. Thirty American robins and 10 house sparrows KEY WORDS: Trematoda, Cestoda, Nematoda, Acantho- were collected in June and July 2010 and 2011 from cephala, Turdus migratorius,Americanrobin,Passer SW suburban Chicago, Illinois. Collection sites domesticus, house sparrows, Chicago, Illinois. included residential and seminatural sites in the municipalities of Alsip, Evergreen Park, Oak Lawn, The helminths of the American robin (Turdus and Palos Hills (Loss et al., 2009). Birds were migratorius Linnaeus, 1758) have been studied in captured during the day and roosting birds were Illinois and the surrounding states by Lincicome captured at night with mist nets (Hamer et al., 2008), (1939), Van Cleave (1942), Read (1950), Denton and an extension net, and by hand using a flashlight to Byrd (1951), Levin (1961), Robinson (1961), Villella disorient (Hamer et al., 2013). Birds were euthanized (1961), Baker and Hamon (1968), and Cooper and by cervical dislocation and separated into juveniles Crites (1974a). On the basis of their study site (i.e., fledglings that had left the nest and were ,4mo old) and adults (.9 mo old) according to plumage, 3 Current address: Department of Entomology, Texas A & iris color, and palate (Pyle, 1997). Birds were stored M University, College Station, Texas 77843, U.S.A. at 4uC and necropsied within 12 hr. The brain, heart, 4 Corresponding author. trachea, esophagus, crop, lungs, liver, intestine, and 287 288 COMPARATIVE PARASITOLOGY, 80(2), JULY 2013 Table 1. Overall prevalence (P), mean intensity (MI) ± standard error (SE) (maximum), and mean abundance (MA) ± SE of helminths in 30 Turdus migratorius, and infection values of 19 juvenile and 11 adult T. migratorius collected in suburban Chicago, Illinois in 2010 and 2011. Overall Juveniles Adults Helminth P (%)MI6 SE (maximum) MA 6 SE P (%)MIMAP (%)MIMA Trematoda Lutztrema monenteron 7 37.0 6 19.0 (56) 2.5 6 1.9 0 0 0 18 37 6.7 Cestoda Choanotaenia sp. 40 5.0 6 1.4 (17) 2.0 6 0.7 47 6.3 3 27 1 0.3 Paricterotaenia sp. 17 2.0 6 0.7 (5) 0.3 6 0.2 11 1 0.1 27 2.7 0.7 Nematoda Chandlerella quiscali 3 4 0.1 6 0.1 5 4 0.2 0 0 0 Porrocaecum ensicaudatum 33 3.9 6 1.2 (10) 1.3 6 0.5 37 4 1.5 27 3.7 1 Splendidofilaria sp. 7 4.5 6 0.5 (5) 0.3 6 0.2 0 0 0 18 4.5 0.8 Syngamus trachea 37 8.7 6 1.2 (16) 3.2 6 0.9 58 8.7 5.1 0 0 0 Synhimantus nasuta 3 12 0.4 6 0.4 5 12 0.6 0 0 0 Acanthocephala Plagiorhynchus cylindraceus 40 6.3 6 1.4 (15) 2.5 6 0.8 37 7.3 2.7 46 4.8 2.2 body cavity were examined for helminths. Trema- Eighty percent of all American robins sampled todes, cestodes, and acanthocephalans were stored in were infected with at least 1 helminth species. Nine 70% alcohol, hydrated, stained with Grenachers helminth species (1 digenetic trematode: L. monen- borax carmine, dehydrated in alcohol, and mounted teron; 2 cestodes: Choanotaenia sp. and Paricter- in Canada balsam. Nematodes were stored in 70% otaenia sp.; 5 nematodes: Chandlerella quiscali, alcohol and cleared in glycerine. Use of prevalence Porrocaecum ensicaudatum, Splendidofilaria sp., (percentage of animals infected with a helminth Syngamus trachea, and Synhimantus nasuta; and 1 species in a sample), mean intensity (mean number of acanthocephalan, Plagiorhyncus cylindraceus) oc- helminths of a species per infected animal), and mean curred in 30 American robins (Table 1). Helminth abundance (mean number of helminths of a species species with the highest prevalences included Cho- per examined animal) follows Bush et al. (1997). anotaenia sp. (40%), P. cylindraceus (40%), Synga- Statistical analyses were performed in Program R (R mus trachea (37%), and Porrocaecum ensicaudatum Development Core Team, 2011). (33%). Lutztrema monenteron had the highest mean Voucher specimens were deposited in the United intensity (37), followed by S. trachea (8.7). Synga- States National Parasite Collection, Beltsville, Maryland, mus trachea had the highest mean abundance (3.2), as follows: Lutztrema monenteron (Price and McIntosh, followed by L. monenteron (2.5) and Plagiorhyncus 1935) (Trematoda: Dicrocoeliidae) (105928); Urogoni- cylindraceus (2.5). All helminth species infecting mus sp. Monticelli, 1888 (Trematoda: Leucochloridii- American robins occurred in the intestine except dae) (105929); Choanotaenia sp. (Lincicome, 1939) for C. quiscali (brain), Splendidofilaria sp. (heart), (Cestoda: Dilepididae) (105930); Paricterotaenia sp. Syngamus trachea (trachea), and Synhimantus nasuta (Linton, 1927) (Cestoda: Dilepididae) (105931); Chan- (esophagus). dlerella quiscali (von Linstow, 1904) (Nematoda: Helminths found in juvenile and adult American Onchocercidae) (105668); Porrocaecum ensicaudatum robins are presented in Table 1. Ninety percent of the (Zeder, 1800) (Nematoda: Anisakidae (105932); Splen- juvenile birds examined were infected with at least 1 didofilaria sp. Skrjabin 1923 (Nematoda: Onchocerci- helminth species, whereas 73% of the adults were dae) (105669); Syngamus trachea (Montagu, 1811) infected.
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