Abstract
In April 2000, we collected and analyzed for parasites 174 feces belonging to 48 different and identified Cantabrian capercaillies (Tetrao urogallus cantabricus) from 39 lek sites in the Cantabrian Mountains (North Spain) and determined the factors related with prevalence and abundance of propagule excretion: (1) interrelations with other parasite species, (2) characteristics of the capercaillie population (number of capercaillies in the lek site, number of occupied lek sites in a 2-km area, and abundance trend), and (3) characteristics of the lek site (orientation and altitude). The higher prevalence was observed for Eimeria sp. oocysts (29% of feces). Capillaria-like eggs were the most frequently detected among nematodes (9%). Excretion of Heterakis sp., Ascaridia sp., and Trichostrongylus sp. eggs was low. The presence of Capillaria propagules in feces was negatively related with those of Eimeria and Heterakis. This could be explained by differences in parasite transmission and capercaillie exposure because Eimeria and Heterakis have direct life cycle, whereas subfamily Capillariinae includes many heteroxenous species. Capillaria eggs were more prevalent in lek sites at lower altitude, which could be explained by altitude-related factors such as humidity, temperature, or soil characteristics that may affect intermediate host abundance. Although no relation was found with host abundance, the low parasite species diversity, prevalence, and abundance may indirectly reflect the decline of the Cantabrian capercaillie populations.
References
Anderson RC (2000) Nematode parasites of vertebrates: their development and transmission. CAB International, Wallingford
Barus V, Sonin MD, Tenora F, Wiger R (1984) Survey of nematodes parasitizing the genus Tetrao (Galliformes) in the Paleartic region. Helminthologia 21:3–15
Beer J (1944) Parasites of the blue grouse. J Wildlife Dis 8:91–21
Bell G, Burt A (1991) The comparative biology of parasite species diversity: intestinal helminths of freshwater fishes. J Anim Ecol 60:1046–1063
Belleau E, Leonard P (1991) Le parasitisme digestif chez la perdrix bartavelle (Alectoris graeca saxatilis), le lagopede alpin (Lagopus mutus), le tetras-lyre (Tetrao tetrix), dans le departement des hautes-alpes. Gibier Faune Sauvage 8:161–173
Brawner WR, Hill GE (1999) Temporal variation in shedding of coccidian oocysts: implications for sexual-selection studies. Can J Zool 77:347–350
Bush AO, Lafferty KD, Lotz JM, Shostak AW (1997) Parasitology meets ecology on its own terms: Margolis et al. revisited. J Parsitol 83:575–583
Dobson AP, May RM (1986) Disease and conservation. In: Soule ME (ed) Conservation biology: The science of scarity and diversity. M.A. Sinauer Associates, Sinderland, pp 345–365
Forbes M, Watherhead PJ, Bennett GF (1994) Blood parasites of blue grouse: variation in prevalence and patterns of interspecific association. Oecologia 97:520–525
Forrester JE, Scott ME (1990) Measurement of Ascaris lumbricoides infection intensity and the dynamics of expulsion following treatment with mebendazole. Parasitol 100:303–308
Freeland WJ (1979) Primate social-groups as biological islands. Ecology 60:719–728
González-Quirós P, Solano S, Silva P, Benito JL, Ballesteros F, Argüelles J (2000) Estimación de la población de urogallo en los sectores central y oriental de Asturias. Unpublished report to the Consejería de Medio Ambiente, Principado de Asturias
Holmes JC (1996) Parasites as threats to biodiversity in shrinking ecosystems. Biodiv Conserv 5:975–983
Homstald R, Skorping A (1998) Covariation of parasite intensity in willow ptarmigan, Lagopus lagopus L. Can J Zool 76:1581–1588
Little RC, Milliken GA, Stroup WW, Wolfinger RD (1996) SAS system for mixed models. SAS Institute, Cary
MacCullagh P, Nelder JA (1989) Generalised linear modeling. Chapman and Hall, New York
Melhorn H, Düwell D, Raether W (1992) Atlas de Parasitología Veterinaria. GRASS ediciones, Barcelona
Millán J, Gortazar C, Villafuerte R (2001) Cuantitative coprology and parasite burden: preliminary results on Capillaria caudinflata (Molin, 1858) in Alectoris rufa (L.). Bulletin d’Information sur la Patologie des Animaux Sauvages 24:149–155
Morand S, Cribb TH, Kulbicki M, Rigby MC, Chauvet C, Dufour V, Faliex E, Galzin R, Lo CM, Lo-Yat A, Pichelin S, Sasal P (2000) Endoparasite species richness of new caledonian butterfly fishes: host density and diet matter. Parasitol 121:65–73
Moss R, Trenhlom IB, Watson A, Parr R (1990) Parasitism, predation and survival of hen ren grouse Lagopus lagopus scoticus in spring. J Anim Ecol 59:631–642
Obeso JR, Rodríguez LD, Álvarez I, Eloy N, del Campo JC (2000) Intestinal parasites in the Cantabrian capercaillie Tetrao urogallus cantabricus: a coprological study. Ardeola 47:191–195
Peterson MJ (1996) The endangered Attwater’s prairie chicken and an analysis of prairie grouse helminthic endoparasitism. Ecography 19:424–431
Solano S, Silva P, Ballesteros F, González-Quirós P, Benito JL (1998) Estimación de la población de urogallo en el suroccidente asturiano. Unpublished report to the Consejería de Agricultura, Principado de Asturias. Informe inédito
Storch I (1995) Habitat requirements of capercaillie. Proc Int Symp Grouse 6:151–154
Storch I (2000) Grouse status survey and conservation action plan 2000–2004. WPA/Birdlife/SSC grouse specialist group. IUCN. Gland, Switzerland and Cambridge, U.K. World Pheasant Association, Reading
Villanúa D, Pérez-Rodríguez L, Gortázar C, Höfle U, Viñuela J (2006) Avoiding bias in parasite excretion estimates: the effect of sampling time and type of faeces. Parasitol 133:251–259
Watve MG, Sukumar R (1995) Parasite abundance and diversity in mammals: correlates with host ecology. Proc Nat Acad Sci 92:8945–8949
Wilson K, Grenfell BT (1997) Generalized linear modelling for parasitologists. Parasitol Today 13:33–38
Acknowledgements
This was a contribution to the joint project CSIC/Principado de Asturias. We wish to thank Ángel de Miguel and Jaime Marcos (Asturias Government) and the Asturias Natural Environment keepers. G. Blanco kindly helped us with the statistical analysis.
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Millán, J., Gortazar, C. & Ballesteros, F. Parasites of the endangered Cantabrian capercaillie (Tetrao urogallus cantabricus): correlates with host abundance and lek site characteristics. Parasitol Res 103, 709–712 (2008). https://doi.org/10.1007/s00436-008-1015-3
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DOI: https://doi.org/10.1007/s00436-008-1015-3