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Surname : McCOY
Name : Karen
Team : EEPI
Grade : DR2
Email address : This email address is being protected from spambots. You need JavaScript enabled to view it.
Telephone : (+33) 4 67 41 62 07
Fax : (+33) 4 67 41 62 99
Office : 353
Locality : IRD Montpellier
Employer : CNRS
Theme :
My general research interests focus on the ecology and evolution of host-parasite interactions. More specifically, I'm interested in the relationship between parasite dispersal/transmission dynamics, host adaptive responses, and the evolution of local adaptation and host-associated divergence. In a broad context, I consider how these factors may influence the evolution of biodiversity in spatially structured systems.

My primary research model involves different seabird species as hosts and two types of parasites, an ectoparasite (the seabird tick Ixodes uriae) and a microparasite (bacteria of the Borrelia burgdorferi s.l. complex). My research includes a combination of field observations and experimentation and the use of molecular markers analysed within a population genetic framework.

Other : ResearcherID profile

Publications :

Oppler ZJ, O'Keeffe KR, McCoy KD, Brisson D (2021) Evolutionary genetics of Borrelia. Current Issues in Molecular Biology 42: 97-111 doi

Lebert I, Agoulon A, Bastian S, Butet A, Cargnelutti B, Cebe N, Chastagner A, Leger E, Lourtet B, Masseglia S, McCoy KD, Merlet J, Noel V, Perez G, Picot D, Pion A, Poux V, Rames JL, Rantier Y, Verheyden H, Vourc'h G, Plantard O (2020) Distribution of ticks, tick-borne pathogens and the associated local environmental factors including small mammals and livestock, in two French agricultural sites: the OSCAR database. Biodiversity Data Journal 8: e50123 doi

Rataud A, Dupraz M, Toty C, Blanchon T, Vittecoq M, Choquet R, McCoy KD (2020) Evaluating functional dispersal in a nest ectoparasite and its eco-epidemiological implications. Frontiers in Veterinary Science 7: 570157 doi

Buysse M, Plantard O, McCoy KD, Duron O, Menard C (2019) Tissue localization of Coxiella-like endosymbionts in three european tick species through fluorescence in situ hybridization. Ticks and Tick-Borne Diseases 10: 798-804 doi

Charrier NP, Hermouet A, Hervet C, Agoulon A, Barker SC, Heylen D, Toty C, McCoy KD, Plantard O, Rispe C (2019) A transcriptome-based phylogenetic study of hard ticks (Ixodidae). Scientific Reports 9: 12923 doi

Fournier GFSR, Pinter A, Santiago R, Munoz-Leal S, Martins TF, Lopes MG, McCoy KD, Toty C, Horta MC, Labruna MB, Dias R (2019) A high gene flow in populations of Amblyomma ovale ticks found in distinct fragments of Brazilian Atlantic rainforest. Experimental and Applied Acarology 77: 215-228 doi

Khan JS, Provencher JF, Forbes MR, Mallory ML, Lebarbenchon C, McCoy KD (2019) Parasites of seabirds: a survey of effects and ecological implications. In, Advances in Marine Biology 82: 1-50 doi

Murgia MV, Bell-Sakyi L, de la Fuente J, Kurtti TJ, Makepeace BL, Mans B, McCoy KD, Munderloh U, Plantard O, Rispe C, Valle MR, Tabor A, Thangamani S, Thimmapuram J, Hill C (2019) Meeting the challenge of tick-borne disease control: a proposal for 1000 Ixodes genomes. Ticks and Tick-Borne Diseases 10: 213-218 doi

Appelgren ASC, Saladin V, Richner H, Doligez B, McCoy KD (2018) Gene flow and adaptive potential in a generalist ectoparasite. BMC Evolutionary Biology 18: 99 doi

Ponchon A, Choquet R, Tornos J, McCoy KD, Tveraa T, Boulinier T (2018) Survival estimates strongly depend on capture-recapture designs in a disturbed environment inducing dispersal. Ecography 41: 2055-2066 doi

Stefan LM, Gómez-Díaz E, Mironov SV, González-Solís J, McCoy KD (2018) "More than meets the eye": Cryptic diversity and contrasting patterns of host-specificity in feather mites inhabiting seabirds. Frontiers in Ecology and Evolution 6: 97 doi

Chastagner A, Pion A, Verheyden H, Lourtet B, Cargnelutti B, Picot D, Poux V, Bard E, Plantard O, McCoy KD, Leblond A, Vourc'h G, Bailly X (2017) Host specificity, pathogen exposure, and superinfections impact the distribution of Anaplasma phagocytophilum genotypes in ticks, roe deer, and livestock in a fragmented agricultural landscape. Infection, Genetics and Evolution 55: 31-44 doi

Dupraz M, Toty C, Devillers E, Blanchon T, Elguero E, Vittecoq M, Moutailler S, McCoy KD (2017) Population structure of the soft tick Ornithodoros maritimus and its associated infectious agents within a colony of its seabird host Larus michahellis. International Journal for Parasitology 6: 122-130 doi

Duron O, Binetruy F, Noel V, Cremaschi J, McCoy KD, Arnathau C, Plantard O, Goolsby J, Pérez de León AA, Heylen DJA, Van Oosten AR, Gottlieb Y, Baneth G, Guglielmone AA, Estrada-Peña A, Opara MN, Zenner L, Vavre F, Chevillon C (2017) Evolutionary changes in symbiont community structure in ticks. Molecular Ecology 26: 2905-2921 doi

Goebel J, Promerova M, Bonadonna F, McCoy KD, Serbielle C, Strandh M, Yannic G, Burri R, Fumagalli L (2017) 100 million years of multigene family evolution: origin and evolution of the avian MHC class IIB. BMC Genomics 18: 460 doi

Kada S, McCoy KD, Boulinier T (2017) Impact of life stage-dependent dispersal on the colonization dynamics of host patches by ticks and tick-borne infectious agents. Parasites & Vectors 10: 375 doi

Appelgren A, McCoy KD, Richner H, Doligez B (2016) Relative fitness of a generalist parasite on two alternative hosts: a cross-infestation experiment to test host specialization of the hen flea Ceratophyllus gallinae (Schrank). Journal of Evolutionary Biology 29: 1091-1101 doi

Boulinier T, Kada S, Ponchon A, Dupraz M, Dietrich M, Gamble A, Bourret V, Duriez O, Bazire R, Tornos J, Tveraa T, Chambert T, Garnier R, McCoy KD (2016) Migration, prospecting, dispersal? What host movement matters for infectious agent circulation? Integrative and Comparative Biology 56: 330-342 doi

Chastagner A, Moinet M, Perez G, Roy E, McCoy KD, Plantard O, Agoulon A, Bastian S, Butet A, Rantier Y, Verheyden H, Cebe N, Leblond A, Vourc'h G (2016) Prevalence of Anaplasma phagocytophilum in small rodents in France. Ticks and Tick-Borne Diseases 7: 988-991 doi

Dupraz M, Toty C, Noel V, Estrada-Peña A, González-Solís J, Boulinier T, Dujardin JP, McCoy KD (2016) Linking morphometric and genetic divergence with host use in the tick complex, Ornithodoros capensis sensu lato. Infection, Genetics and Evolution 46: 12-22 doi

Duron O, Cremaschi J, McCoy KD (2016) The high diversity and global distribution of the intracellular bacterium Rickettsiella in the polar seabird tick Ixode uriae. Microbial Ecology 71: 761-770 doi

Mazé-Guilmo E, Blanchet S, McCoy KD, Loot G (2016) Host dispersal as the driver of parasite genetic structure: a paradigm lost? Ecology Letters 19: 336-347 doi

McCoy KD, Boulanger N (2016) Tiques et maladies à tiques : Biologie, écologie évolutive, épidémiologie. IRD Editions

McCoy KD, Chevillon C (2016) Chapitre 4. Structuration des populations et adaptation des tiques : implications en épidémiologie. In Tiques et maladies à tiques : Biologie, écologie évolutive, épidémiologie. pp 113-140. IRD Editions

McCoy KD, Dietrich M, Jaeger A, Wilkinson DA, Bastien M, Lagadec E, Boulinier T, Pascalis H, Tortosa P, Le Corre M, Dellagi K, Lebarbenchon C (2016) The role of seabirds of the Iles Eparses as reservoirs and disseminators of parasites and pathogens. Acta Oecologica 72: 98-109 doi

Duron O, Noel V, McCoy KD, Bonazzi M, Sidi-Boumedine K, Morel O, Vavre F, Zenner L, Jourdain E, Durand P, Arnathau C, Renaud F, Trape JF, Biguezoton AS, Cremaschi J, Dietrich M, Léger E, Appelgren A, Dupraz M, Gómez-Díaz E, Diatta G, Dayo GK, Adakal H, Zoungrana S, Vial L, Chevillon C (2015) The recent evolution of a maternally-inherited endosymbiont of ticks led to the emergence of the Q fever pathogen, Coxiella burnetii. PLoS Pathogens11 : e1004892 doi

Léger E, Liu X, Y, Masseglia S, Noel V, Vourc'h G, Bonnet S, McCoy KD (2015) Reliability of molecular host-identification methods for ticks: an experimental in vitro study with Ixodes ricinus. Parasites & Vectors 8: 433 doi

Stefan LM, Gómez-Díaz E, Elguero E, Proctor HC, McCoy KD, González-Solís J (2015) Niche partitioning of feather mites within a seabird host, Calonectris borealis. PLoS One 10: e0144728 doi

Dietrich M, Kempf F, Boulinier T & McCoy KD (2014) Tracing the colonization and diversification of the worldwide seabird ectoparasite Ixodes uriae. Molecular Ecology. 23: 3292-3305 doi

Dietrich M, Lebarbenchon C, Jaeger A, Le Rouzic C, Bastien M, Lagadec E, McCoy KD, Pascalis H, Le Corre M, Dellagi K & Tortosa P (2014) Rickettsia spp. in seabird ticks from western Indian Ocean Islands, 2011-2012. Emerging Infectious Diseases. 20: 838-842 doi

Dietrich M, Lobato E, Boulinier T & McCoy KD (2014) An experimental test of host specialization in a ubiquitous polar ectoparasite: a role for adaptation? Journal of Animal Ecology. 83: 576-587 doi

Dujardin JP, Kaba D, Solano P, Dupraz M, McCoy KD & Jaramillo N (2014) Outline-based morphometrics, an overlooked method in arthropod studies? Infection, Genetics and Evolution. 28: 704-714 doi

Duron O, Jourdain E & McCoy KD (2014) Diversity and global distribution of the Coxiella intracellular bacterium in seabird ticks. Ticks and Tick-Borne Diseases. 5: 557-563 doi

Ponchon A, Gremillet D, Christensen-Dalsgaard S, Erikstad KE, Barrett RT, Reiertsen TK, McCoy KD, Tveraa T & Boulinier T (2014) When things go wrong: intra-season dynamics of breeding failure in a seabird. Ecosphere. 5: 4 doi

Schramm F, Gauthier-Clerc M, Fournier JC, McCoy KD, Barthel C, Postic D, Handrich Y, Le Maho Y & Jaulhac B (2014) First detection of Borrelia burgdorferi sensu lato DNA in king penguins (Aptenodytes patagonicus halli). Ticks and Tick-Borne Diseases. 5: 939-942 doi

Stefan LM, McCoy KD & Mironov S (2014) A new species of the feather mite genus Rhinozachvatkinia (Acari: Avenzoariidae) from Calonectris shearwaters (Procellariiformes: Procellariidae): integrating morphological descriptions with DNA barcode data. Folia Parasitologica. 61: 90-96 doi

Wilkinson DA, Dietrich M, Lebarbenchon C, Jaeger A, Le Rouzic C, Bastien M, Lagadec E, McCoy KD, Pascalis H, Le Corre M, Dellagi K & Tortosa P (2014) Massive infection of seabird ticks with bacterial species related to Coxiella burnetii. Applied and Environmental Microbiology. 80: 3327-3333 doi

Deane PE, McCoy KD, Robertson RJ, Birt TP & Friesen VL (2013) Minimal genetic structure in the Cerulean warbler despite evidence for ecological differentiation among populations. Condor. 115: 178-185 doi

Dietrich M, Beati L, Elguero E, Boulinier T & McCoy KD (2013) Body size and shape evolution in host races of the tick Ixodes uriae. Biological Journal of the Linnean Society. 108: 323-334 doi

Leger E, Vourc'h G, Vial L, Chevillon C & McCoy KD (2013) Changing distributions of ticks: causes and consequences. Experimental and Applied Acarology. 59: 219-244 doi

McCoy KD, Leger E & Dietrich M (2013) Host specialization in ticks and transmission of tick-borne diseases: a review. Frontiers in Cellular and Infection Microbiology. 3: 57 doi

Chambert T, Pardo D, Choquet R, Staszewski V, McCoy KD, Tveraa T & Boulinier T (2012) Heterogeneity in detection probability along the breeding season in Black-legged Kittiwakes: implications for sampling design. Journal of Ornithology. 152: S371-S380 doi pdf

Chambert T, Staszewski V, Lobato E, Choquet R, Carrie C, McCoy KD, Tveraa T & Boulinier T (2012) Exposure of black-legged kittiwakes to Lyme disease spirochetes: dynamics of the immune status of adult hosts and effects on their survival. Journal of Animal Ecology. 81: 986-995 doi

Dietrich M, Kempf F, Gómez-Díaz E, Kitaysky AS, Hipfner JM, Boulinier T & McCoy KD (2012) Inter-oceanic variation in patterns of host-associated divergence in a seabird ectoparasite. Journal of Biogeography. 39: 545-555 doi

Gómez-Díaz E, Morris-Pocock JA, González-Solis J & McCoy KD (2012) Trans-oceanic host dispersal explains high seabird tick diversity on Cape Verde islands. Biology Letters. 8: 616-619 doi

McCoy KD, Beis P, Barbosa A, Cuervo JJ, Fraser WR, González-Solis J, Jourdain E, Poisbleau M, Quillfeldt P, Léger E & Dietrich M (2012) Population genetic structure and colonisation of the western Antarctic Peninsula by the seabird tick Ixodes uriae. Marine Ecology Progress Series. 459: 109-120 doi

Noel V, Léger E, Gómez-Díaz E, Risterucci AM & McCoy KD (2012) Isolation and characterization of new polymorphic microsatellite markers for the tick Ixodes ricinus (Acari: Ixodidae). Acarologia. 52: 123-128 doi pdf

Veracx A, Rivet R, McCoy KD, Brouqui P & Raoult D (2012) Evidence that head and body lice on homeless persons have the same genotype. PLoS One. 7: e45903 doi

Chevillon C, de Meeûs T & McCoy KD (2011) Population genetics and epidemiology of infectious diseases. In New Frontiers of Molecular Ecology in Infectious Diseases. Eds. Morand S, Beaudeau F & Cabaret J. pp. 45-75. Springer, Dordrecht, The Netherlands

Dietrich M, Gómez-Díaz E & McCoy KD (2011) Worldwide distribution and diversity of seabird ticks: Implications for the ecology and epidemiology of tick-borne pathogens. Vector-Borne and Zoonotic Diseases. 11: 453-470 doi pdf

Gómez-Díaz E, Boulinier T, Sertour N, Cornet M, Ferquel E & McCoy KD (2011) Genetic structure of marine Borrelia garinii and population admixture with the terrestrial cycle of Lyme borreliosis. Environmental Microbiology. 13: 2453-2467 doi pdf

Kempf F, de Meeûs T, Vaumourin E, Noel V, Taragel'ova V, Plantard O, Heylen DJA, Eraud C, Chevillon C & McCoy KD (2011) Host races in Ixodes ricinus, the European vector of Lyme borreliosis. Infection, Genetics and Evolution. 11: 2043-2048 doi

Lobato E, Pearce-Duvet J, Staszewski V, Gómez-Díaz E, González-Solis J, Kitaysky A, McCoy KD & Boulinier T (2011) Seabirds and the circulation of Lyme Borreliosis bacteria in the North Pacific. Vector-Borne and Zoonotic Diseases. 11: 1521-1527 doi

Gómez-Díaz E, Doherty PF, Duneau D & McCoy KD (2010) Cryptic vector divergence masks vector-specific patterns of infection: an example from the marine cycle of Lyme borreliosis. Evolutionary Applications. 3: 391-401 pdf

Kempf F, McCoy KD & de Meeûs T (2010) Wahlund effects and sex-biased dispersal in Ixodes ricinus, the European vector of Lyme borreliosis: New tools for old data. Infection, Genetics and Evolution. 10: 989-997

Kempf F, Boulinier T, de Meeûs T, Arnathau C & McCoy KD (2009) Recent evolution of host-associated divergence in the seabird tick Ixodes uriae. Molecular Ecology. 18: 4450-4462 pdf

Kempf F, de Meeûs T, Arnathau C, Degeilh B & McCoy KD (2009) Assortative pairing in Ixodes ricinus (Acari: Ixodidae), the European vector of Lyme borreliosis. Journal of Medical Entomology. 46: 471-474 pdf

McCoy KD (2009) Host-parasite determinants of parasite population structure: lessons from bats and mites on the importance of time. Molecular Ecology. 18: 3545-3547 pdf

Boulinier T, McCoy KD, Yoccoz NG, Gasparini J & Tveraa T (2008) Public information affects breeding dispersal in a colonial bird: kittiwakes cue on neighbours. Biology Letters. 4: 538-540 pdf

Dietrich M, Gómez-Díaz E, Boulinier T & McCoy KD (2008) Local distribution and genetic structure of tick-borne pathogens: an example involving the marine cycle of Lyme disease. pp. 33-42. In Integrative Acarology. Proceedings of the 6th European Congress (Eds. Bertrand M, Kreiter S, McCoy KD, Migeon A, Navajas M, Tixier M-S & Vial L). European Association of Acarologists pdf

Duneau D, Boulinier T, Gómez-Díaz E, Petersen A, Tveraa T, Barrett RT & McCoy KD (2008) Prevalence and diversity of Lyme borreliosis bacteria in marine birds. Infection, Genetics and Evolution. 8: 352-359 pdf

Epis S, Sassera D, Beninati T, Lo N, Beati L, Piesman J, Rinaldi L, McCoy KD, Torina A, Sacchi L, Magnino S & Bandi C (2008) Midichlorian bacteria are widespread in hard ticks (Ixodidae) and reside in the mitochondria of phylogenetically diverse species. Parasitology. 135: 485-494

McCoy KD (2008) The population genetic structure of vectors and our understanding of disease epidemiology. Parasite. 15: 444-448 pdf

Staszewski V, McCoy KD & Boulinier T (2008) Variable exposure and immunological response to Lyme disease Borrelia among North Atlantic seabird species. Proceedings of the Royal Society of London, Series B. 275: 2101-2109 pdf

de Meeûs T, McCoy KD, Prugnolle F, Chevillon C, Durand P, Hurtrez-Boussès S & Renaud F (2007) Population genetics and molecular epidemiology or how to 'debusquer la bete'. Infection, Genetics and Evolution. 7: 308-332 pdf

Friesen VL, Burg TM & McCoy KD (2007) Mechanisms of population differentiation in seabirds. Molecular Ecology. 16: 1765-1785 pdf

Staszewski V, Gasparini J, McCoy KD, Tveraa T & Boulinier T (2007) Evidence of an interannual effect of maternal immunization on the immune response of juveniles in a long-lived colonial bird. Journal of Animal Ecology. 76: 1215-1223 pdf

Staszewski V, McCoy KD, Tveraa T & Boulinier T (2007) Interannual dynamics of antibody levels in naturally infected long-lived colonial birds. Ecology. 88: 3183-3191 pdf

Gasparini J, McCoy KD, Staszewski V, Haussy C & Boulinier T (2006) Dynamics of anti-Borrelia antibodies in kittiwake chicks (Rissa tridactyla) suggests a maternal educational effect. Canadian Journal of Zoology. 84: 623-627 pdf

McCoy KD, Boulinier T, Tirard C (2005) Comparative host-parasite population structures: disentangling prospecting and dispersal in the black-legged kittiwake Rissa tridactyla. Molecular Ecology. 14: 2825-2838 pdf

McCoy KD, Chapuis E, Tirard C, Boulinier T, Michalakis Y, Bohec CL, Maho YL & Gauthier-Clerc M (2005) Recurrent evolution of host-specialized races in a globally distributed parasite. Proceedings of the Royal Society of London, Series B. 272: 2389-95. pdf

Riffaut L, McCoy KD, Tirard C, Friesen VL & Boulinier T (2005) Population genetics of the common guillemot Uria aalge in the North Atlantic: assessing the geographic impact of oil spills. Marine Ecology Progress Series. 291: 263-273 pdf

Cadiou A, Riffaut L, McCoy KD, Cabelguen J, Fortin M, Gelinaud G, Le Roch A, Tirard C & Boulinier T (2004) Ecological impact of the "Erika" oil spill: Determination of the geographic origin of the affected common guillemots. Aquatic Living Resources. 17: 369-377

McCoy KD (2004) Response to Le Gac and Giraud: questioning is a good start. Trends in Parasitology. 20: 208-209

McCoy KD (2003) Sympatric speciation in parasites - what is sympatry? Trends in Parasitology. 19: 400-404

McCoy KD (2003) Sympatric speciation in parasites - what is sympatry? Trends in Parasitology. 19: 400-404

McCoy KD, Boulinier T, Tirard C, Michalakis Y (2003) Host-dependent genetic structure of parasite populations: differential dispersal of seabird tick host races. Evolution. 57: 288-296 pdf

McCoy KD, Tirard C, Michalakis Y (2003) Spatial genetic structure of the ectoparasite Ixodes uriae within breeding cliffs of its colonial seabird host. Heredity. 91: 422-9. pdf

Boulinier T, Yoccoz NG, McCoy KD, Erikstad KE & Tveraa T (2002) Testing the effect of conspecific reproductive success on dispersal and recruitment decisions in a colonial bird: design issues. Journal of Applied Statistics. 29: 509-520

McCoy KD & Tirard C (2002) Reproductive strategies of the seabird tick Ixodes uriae (Acari: Ixodidae). Journal of Parasitology. 88: 813-816

McCoy KD, Boulinier T, Schjorring S & Michalakis Y (2002) Local adaptation of the ectoparasite Ixodes uriae to its seabird host. Evolutionary Ecology Research. 4: 441-456 pdf

Gasparini J, McCoy KD, Haussy C, Tveraa T & Boulinier T (2001) Induced maternal response to the Lyme disease spirochaete Borrelia burgdorferi sensu lato in a colonial seabird, the kittiwake Rissa tridactyla. Proceedings of the Royal Society of London Series B-Biological Sciences. 268: 647-650

McCoy KD, Boulinier T, Tirard C & Michalakis Y (2001) Host specificity of a generalist parasite: genetic evidence of sympatric host races in the seabird tick Ixodues uriae. Journal of Evolutionary Biology. 14: 395-405 pdf

McCoy KD & Tirard C (2000) Isolation and characterization of microsatellites in the seabird ectoparasite Ixodes uriae. Molecular Ecology. 9: 2213-2214

McCoy K, Boulinier T, Chardine JW, Danchin E & Michalakis Y (1999) Dispersal and distribution of the tick Ixodes uriae within and among seabird host populations: The need for a population genetic approach. Journal of Parasitology. 85: 196-202 pdf

McCoy KD (1999) Sampling terrestrial gastropod communities: Using estimates of species richness and diversity to compare two methods. Malacologia. 41: 271-281

Hager HA & McCoy KD (1998) The implications of accepting untested hypotheses: a review of the effects of purple loosestrife (Lythrum salicaria) in North America. Biodiversity and Conservation. 7: 1069-1079

McCoy KD & Nudds TD (1997) Interspecific variation in climbing by gastropods: Implications for transmission of Parelaphostrongylus tenuis. American Midland Naturalist. 137: 320-328