Publications
 
 


  1. 1.A. C. Bradshaw, L. A. Tell, H. B. Ernest, S. Bahan, J. Carlson, R. Sehgal. 2017. Detection and prevalence of Haemoproteus archilocus (Haemosporida, Haemoproteidae) in two species of California hummingbirds. Parasitology Research. 116: 1879-1885. (PDF)


  1. 2.D. Freund, S. S. Wheeler, A. K. Townsend, W. M. Boyce, H. B. Ernest, C. Cicero, R. Sehgal. 2016. Genetic sequence data reveals widespread sharing of Leucocytozoon lineages in corvids. Parasitology Research. 115: 3557-3565. (PDF)


  1. 3.E. Walther, G. Valkiūnas, E. A. Wommack, R. C. Bowie, T. A. Iezhova, R. Sehgal. 2016. Description and molecular characterization of a new Leucocytozoon parasite (Haemosporida: Leucocytozoidae), Leucocytozoon californicus sp. nov., found in American kestrels (Falco sparverius sparverius). Parasitology Research. 115: 1853-1862. (PDF)


  1. 4.A. R. Nelson, R. L. Cormier, D. L. Humple, J. C. Scullen, R. Sehgal, N. E. Seavy. 2016. Migration patterns of San Francisco Bay Area Hermit Thrushes differ across a fine spatial scale. Animal Migration 3:1. (PDF)


  1. 5.L. C. Wilkinson, C. M. Handel, C. Van Hemert, C. Loiseau, R. Sehgal. 2016. Avian malaria in a boreal resident species: long-term temporal variability, and increased prevalence in birds with avian keratin disorder.International Journal for Parasitology. 46: 281-290. (PDF)


  1. 6.R. Sehgal. 2015. Manifold habitat effects on the prevalence and diversity of avian blood parasites. International Journal for Parasitology: Parasites and Wildlife. (PDF)


  1. 7.R. Sehgal, T. A. Iezhova, T. Marzec, G. Valkiūnas. 2015. Trypanosoma naviformis sp. nov.(Kinetoplastidae: Trypanosomatidae) from widespread African songbirds, the Olive sunbird (Cyanomitra olivacea) and Yellow-whiskered greenbul (Andropadus latirostris). Zootaxa. 4034: 342-350. (PDF)


  1. 8.E. L. Walther, J. S. Carlson, A. Cornel, B. K. Morris, R. Sehgal. 2015. First molecular study of prevalence and diversity of avian haemosporidia in a Central California songbird community. Journal of Ornithology: 1-16. (PDF)


  1. 9.E. J. Lauron, H. X. Aw Yeang, S. M. Taffner, R. Sehgal. 2015. De novo assembly and transcriptome analysis of Plasmodium gallinaceum identifies the Rh5 interacting protein (ripr), and reveals a lack of EBL and RH gene family diversification. Malaria Journal. 14: 296. (PDF)


  1. 10.J.S. Carlson, E. Walther, R. Trout Fryxell, S. Staley, L. A. Tell, R. Sehgal, C. M. Barker and A. J. Cornel. 2015. Identifying avian malaria vectors: sampling methods influence outcomes. Parasites and Vectors. 8: 365. (PDF)


  1. 11.J. E. Martínez-Gómez, N. Matías-Ferrer, R. Sehgal and P. Escalante. 2015. Phylogenetic placement of the critically endangered Townsend’s Shearwater (Puffinus auricularis auricularis): evidence for its conspecific status with Newell’s Shearwater (Puffinus a. newelli) and a mismatch between genetic and phenotypic differentiation. Journal of Ornithology. DOI 10.1007/s10336-015-1189-2. (PDF)


  1. 12.E. J. Lauron, C. Loiseau, R. C. Bowie, G. S. Spicer, T. B. Smith, M. Melo and R. Sehgal. 2015.  Coevolutionary patterns and diversification of avian malaria parasites in African sunbirds (Family Nectariniidae). Parasitology. 142: 635-647. (PDF)


  1. 13.O. Hellgren, C. T. Atkinson, S. Bensch, T. Albayrak, D. Dimitrov, J. G. Ewen, K. S. Kim, M. R. Lima, L. Martin, V. Palinauskas, R. Ricklefs, R. Sehgal, G. Valkiūnas, Y. Tsuda and  A. Marzal. 2015. Global phylogeography of the avian malaria pathogen Plasmodium relictum based on MSP1 allelic diversity. Ecography. 38: 842-850. (PDF)


  1. 14.E. L. Evans, J. E. Martinez-Gomez and R. Sehgal. 2015.  Phylogenetic relationships and taxonomic status of the endemic Socorro Warbler (Setophaga pitiayumi graysoni).  Journal of Ornithology. 156: 363-370. (PDF)


  1. 15.E. J. Lauron, K. S. Oakgrove, L. A. Tell, K. Biskar, S. W. Roy and R. Sehgal. 2014. Transcriptome sequencing and analysis of Plasmodium gallinaceum reveals polymorphisms and selection on the apical membrane antigen-1.  Malaria Journal. 13: 282. (PDF)


  1. 16.K. S. Oakgrove, R. J. Harrigan, C. Loiseau, S. Guers, B. Seppi and R. Sehgal. 2014. Distribution, diversity and drivers of blood-borne parasite co-infections in Alaskan bird populations. International Journal for Parasitology. 44: 717-727. (PDF)


  1. 17.E. L. Walther, G. Valkiūnas, A. D. González, N. E. Matta, R. E. Ricklefs, A. Cornel and R. Sehgal. 2014. Description, molecular characterization, and patterns of distribution of a widespread New World avian malaria parasite (Haemosporida: Plasmodiidae), Plasmodium (Novyella) homopolare sp. nov. Parasitology Research. 113: 3319-3332. (PDF)


  1. 18.A. Marzal, L. García-Longoria, J. M. C. Callirgos and R. Sehgal. 2014. Invasive avian malaria as an emerging parasitic disease in native birds of Peru. Biological Invasions. DOI 10.1007/s10530-014-0718-x. 1-7. (PDF)


  1. 19.M. A. Jasper, J. M. Hull, A. C. Hull, and R. Sehgal. 2014. Widespread lineage diversity of Leucocytozoon blood parasites in distinct populations of western Red-tailed Hawks. Journal of Ornithology. 155: 767–775. (PDF)


  1. 20.C. D. Mendenhall, H. M. Archer, F. O. Brenes, C. H. Sekercioglu and R. Sehgal.  2013.  Balancing biodiversity with agriculture: Land sharing mitigates avian malaria prevalence.  Conservation Letters. 6: 125-131. (PDF)

 

  1. 21.C. Martinez, T. Marzec, C. D. Smith, L. A. Tell, and R. Sehgal. 2013.  Identification and expression of maebl, an erythrocyte binding gene in Plasmodium gallinaceum.  Parasitology Research. 112: 945-954. (PDF)


  1. 22.A. Križanauskienė, T. A. Iezhova, R. Sehgal, J. S Carlson, V. Palinauskas, S. Bensch, and G. Valkiūnas.  2013.  Molecular characterization of Haemoproteus sacharovi (Haemosporida, Haemoproteidae), a common parasite of columbiform birds, with remarks on classification of haemoproteids of doves and pigeons.  Zootaxa.  3613: 085-094. (PDF)


  1. 23.G. Valkiūnas, T. A. Iezhova, E. Evans, J. S. Carlson, J. E. Martinez-Gomez, R. Sehgal.  2013.  Two new Haemoproteus (Haemosporida: Haemoproteidae) species from Columbiform birds.  Journal of Parasitology. 99(3): 513-521. (PDF)


  1. 24.J. S. Carlson, J. E. Martinez-Gomez, G. Valkiūnas, C. Loiseau, D. A. Bell and R. Sehgal.  2013.  Diversity and phylogenetic relationships of hemosporidian parasites in birds of Socorro Island, Mexico, and their role in the re-introduction of the Socorro Dove (Zenaida graysoni).  Journal of Parasitology. 99: 270-276. (PDF)


  1. 25.M. Dodge, S. L. Guers, C. H. Sekercioglu and R. Sehgal.  2013.  North American transmission of hemosporidian parasites in the Swainson’s thrush (Catharus ustulatus), a migratory songbird. Journal of Parasitology. 99: 548-553. (PDF)


  1. 26.C. Loiseau, R. J. Harrigan, A. J. Cornel, S. L. Guers, M. Dodge, T. Marzec, J. S. Carlson, B. Seppi and R. Sehgal.  2012.  First evidence and predictions of Plasmodium transmission in Alaskan bird populations. PloS One. 7:e44729. (PDF)


  1. 27.C. Loiseau, R. J. Harrigan, A. Robert, R. C. K. Bowie, A. Thomassen, T. B. Smith and R. Sehgal.  2012.  Host and habitat specialization of avian malaria in Africa.  Molecular Ecology. 21: 431-441. (PDF)


  1. 28.G. Valkiūnas, T.A. Iezhova, J. S. Carlson and R. Sehgal.  2011. Two new Trypanosoma species from African birds, with notes on taxonomy of avian trypanosomes.  Journal of Parasitology.  97: 924-930. (PDF)


29. S. Yanga, J. Martinez-Gomez, R. Sehgal, P. Escalante-Pliego, F. C. Camacho, D. A. Bell.  2011. A preliminary survey for avian pathogens of Columbiformes on Socorro Island, Mexico.  Pacific Conservation Biology. 17: 11-21. (PDF)


30. A. Marzal, R. E. Ricklefs, G. Valkiūnas, T. Albayrak, E. Arriero, C. Bonneaud, G. A. CPzirják, J. Ewen, O. Hellgren, D. Hořáková, T. A. Iezhova, H. Jensen, A. Križanauskienė, M. R. Lima, F. de Lope, E. Magnussen, L. B. Martin, A. P.. Møller, V. Palinauskas, P. L. Pap, J. Pérez-Tris, R. Sehgal, M. Soler, E. Szöllősi, H. Westerdahl, P. Zetindjiev, S. Bensch. 2011.  Diversity, loss and gain of malaria parasites in a globally invasive bird.  Plos One. 6(7): e21905. (PDF)


31. T. B Smith, H. A. Thomassen, A. H. Freedman, R. Sehgal, W. Buermann, S. Saatchi, J. Pollinger, B. Milá, D. Pires, G. Valkiūnas and R. K. Wayne.  2011. Patterns of divergence in the olive sunbird (Cyanomitra olivacea) across the African rainforest-savanna ecotone.  Biological Journal of the Linnean Society. 103: 825-835. (PDF)


32. J. S. Carlson, J. E. Martinez-Gomez, A. Cornel, C. Loiseau and R. Sehgal. 2011.  Implications of Plasmodium parasite infected mosquitoes on an insular avifauna: the case of Socorro Island, Mexico.  Journal of Vector Ecology.  36: 213-220.  (PDF)


33.  T. Iezhova, M. Dodge, R. Sehgal, T. B. Smith and G. Valkiūnas.  2011.  New avian Haemoproteus species (Haemosporida: Haemoproteidae) from African birds, with a critique of the use of host taxonomic information in hemoproteid classification.  Journal of Parasitology. 97: 682-694. (PDF)


34. K. Y. Njabo, A. J. Cornel, C. Bonneaud, E. Toffelmier, R. Sehgal, G. Valkiūnas, A. F. Russell and T. B. Smith.  2010.  Nonspecific patterns of vector, host and avian malaria parasite associations in a central African rainforest.  Molecular Ecology. 20: 1049-1060. (PDF)


35. R. Sehgal, W. Buermann, R. Harrigan, C. Bonneaud, C. Loiseau, A. Chasar, G. Valkiūnas, T Iezhova, I Sepil, S. Saatchi, and T. B. Smith.  2010.  Spatially explicit predictions of blood parasites in a widely distributed African rainforest bird.  Proceedings of the Royal Society of London Series B. 278: 1025-1033. (PDF)


36. H. D. Ishak, C. Loiseau, A. C. Hull, and R. Sehgal.  2010.  Prevalence of blood parasites in migrating California hawks.  Journal of Raptor Research.  44: 215-223. (PDF)


37. R. Sehgal.  2010.  Deforestation and avian infectious diseases.  Journal of Experimental Biology 213: 955-960. (PDF)


38. C. Loiseau, T. Iezhova, G. Valkiūnas, A. Chasar, A. Hutchinson, W. Buermann, T. B. Smith and R. Sehgal.  2010.  Spatial variation of haemosporidian parasite infection in African rainforest bird species.  Journal of Parasitology 96: 21-29. (PDF)


39. G. Valkiūnas, R. Sehgal, T. A. Iezhova, and A. C. Hull.  2010.  Identification of Leucocytozoon toddi group (Haemosporida, Leucocytozoidae), with remarks on the species taxonomy of leucocytozoids. Journal of Parasitology 96: 170-177. (PDF)


40. T. A. Iezhova, G. Valkiūnas, C. Loiseau, T. B. Smith and R. Sehgal.  2010.  Haemoproteus cyanomitrae sp. Nov. (Haemosporida, Haemoproteidae) from a widespread African songird, the Olive Sunbird (Cyanomitra olivacea).  Journal of Parasitology 96: 137-143. (PDF)


41. A. Chasar, C. Loiseau, G.Valkiūnas, T. Iezhova, T. B. Smith, R. Sehgal.  2009.  Prevalence and diversity patterns of African avian blood parasites in degraded habitats. Molecular Ecology 18: 4121-4133. (PDF)


42. K. Y. Njabo, A. J. Cornel, R. Sehgal, C. Loiseau, W. Buermann, R. Harrigan, J. Pollinger, G. Valkiūnas and T.B. Smith.  2009.  Distribution and diversity of avian malaria parasites in Coquillettidia mosquitoes in rainforests of Cameroon, with remarks on the vectors’ feeding patterns. Malaria Journal. 8: 193. (PDF)


43. G. Valkiūnas, T. A. Iezhova, C. Loiseau and R. Sehgal.  2009.  Nested Cytochrome b Polymerase Chain Reaction Diagnostics Detect Sporozoites of Hemosporidian Parasites in Peripheral Blood of Naturally Infected Birds.  Journal of Parasitology. 95: 1512-1515. (PDF)


44. C. Bonneaud, I. Sepil, B. Mila, W. Buermann, J. Pollinger, R. Sehgal, G. Valkiūnas, T. Iezhova, S. Saatchi and T. B. Smith.  2009.  The prevalence of avian Plasmodium is higher in undisturbed tropical forests of Cameroon.  Journal of Tropical Ecology. 25: 439-447.  (PDF)


45. G. Valkiūnas, T. A. Iezhova, C. Loiseau, T. B. Smith and R. Sehgal. 2009. New malaria parasites of the subgenus Novyella in African rainforest birds, with remarks on their high prevalence, classification and diagnostics. Parasitology Research. 104: 1061-1077. (PDF)


46. G. Valkiūnas, T. A. Iezhova, C. Loiseau, A. Chasar, T. B. Smith and R. Sehgal. 2008. New species of haemosporidian parasites (Haemosporida) from African rainforest birds, with remarks on their classification. Parasitology Research. 103: 1213-1228. (PDF)


47. G. Valkiūnas, T. A. Iezhova, A. Križanauskienė, V. Palinauskas, R. Sehgal, S. Bensch. 2008. A comparative analysis of microscopy and pcr-based detection methods for blood parasites. Journal of Parasitology. 20:1. (PDF)


48. H. D. Ishak, J. P. Dumbacher, N. L. Anderson, J. J. Keane, G. Valkiūnas, S. M. Haig, L. A. Tell and R. Sehgal. 2008. Blood parasites in owls with conservation implications for the Spotted Owl (Strix occidentalis). PLoS One. 3(5): e2304. (PDF)


49.  G. Valkiūnas, C. T. Atkinson, S. Bensch, R. Sehgal and R. E. Ricklefs. 2008. Parasite misidentifications in GenBank: how to minimize their number? Trends in Parasitology. 24(6): 247-248. (PDF)


50. L. M. E. Svensson, K. C. Ruegg, C. H. Sekercioglu, and R. Sehgal. 2007. Widespread and structured distributions of blood parasite haplotypes across a migratory divide of the Swainson's thrush (Catharus ustulatus). Journal of Parasitology. 93(6): 1488-1495. (PDF)

51.  R. Sehgal, G. Valkiūnas, T. A. Iezhova and T. B. Smith. 2006. Blood parasites of chickens in Uganda and Cameroon with molecular descriptions of
Leucocytozoon schoutedeni and Trypanosoma gallinarum. Journal of Parasitology. 92(6): 1336-1343. (PDF)

52.   J. Masello, R. Gustavo Choconi, R. Sehgal, L. A. Tell and P Quillfeldt. 2006. Blood and intestinal parasites in wild Psittaciformes: A case study of Burrowing parrots (
Cyanoliseus patagonus). Ornotología Neotropical. 17: 515-529. (PDF)

53. R. Sehgal, A. C. Hull, N. Anderson, G. Valkiūnas, M. J. Markovets, S. Kawamura and L. A. Tell. 2006. Evidence for Cryptic Speciation of
Leucocytozoon spp. (Haemosporida, Leucocytozoidae) in Diurnal Raptors. Journal of Parasitology. 92(2): 375-379. (PDF)

54. R. Sehgal, H. I. Jones, and T. B. Smith. 2005. Molecular evidence for host-specificity of parasitic nematode microfilariae in some African rainforest birds. Molecular Ecology. 14: 3977-3988.
(PDF)

55. G. Valkiūnas, R. Sehgal, T. A. Iezhova, and T. B. Smith. 2005. Further observations on the blood parasites of birds in Uganda. Journal of Wildlife Diseases. 41(3): 580-587.
(PDF)

56. R. Sehgal, H. I. Jones, and T. B. Smith. 2005. Blood parasites of some West African birds. Journal of Veterinary Medical Sciences. 67(3): 295-301.
(PDF)

57. H. I. Jones, R. Sehgal and T. B. Smith. 2005.
Leucocytozoon (Apicomplexa: Leucocytozoidae) from West African birds, with descriptions of two species. Journal of Parasitology. 91(2): 397-401. (PDF)

58. R. Sehgal and I. J. Lovette. 2003. Molecular evolution of three avian neurotrophin genes: implications for proregion functional constraints. Journal of Molecular Evolution. 57: 335-342.
(PDF)

59. F. A. Richard, R. Sehgal, H. I. Jones, and T. B. Smith. 2002. A comparative analysis of PCR-based detection methods for avian malaria. Journal of Parasitology. 88(4): 819-822.
(PDF)

60. R. Sehgal, Hugh Jones, and Thomas B. Smith. 2001. Host Specificity and incidence of
Trypanosoma in some African rainforest birds: a molecular approach. Molecular Ecology 10(9): 2319-2328. (PDF)

61. R. Sehgal, B. Gumbiner, and L. F. Reichardt. 1997. Antagonism of Cell Adhesion by a Mutant of Alpha-Catenin, and antagonism of the Wnt-Signaling Pathway by Alpha-Catenin in Xenopus embryos. Journal of Cell Biology. 139(4): 1033-1046.
(PDF)

62. T. Svensson, M. Rydén, F. H. Schilling, C. Dominici, R. Sehgal, C. F. Ibañez, and P. Kogner. 1997. Coexpression of mRNA for the full-length neurotrophin receptor trk-C and trk-A in favourable neuroblastoma. European Journal of Cancer. 33(12): 2058-2063.

63. M. Rydén, R. Sehgal, C. Dominici, F. H. Schilling, C. F. Ibañez, and P. Kogner. 1996. Expression of mRNA for the neurotrophin receptor trk-C in neuroblastomas with favourable tumour stage and good prognosis. British Journal of Cancer. 74(5): 773-779.

64, Y. S. Choi, R. Sehgal, P. McCrea, and B. Gumbiner. 1990. A Cadherin-like Protein in Eggs and Cleaving Embryos of
Xenopus laevis is Expressed in Oocytes in Response to Progesterone. Journal of Cell Biology.  110: 1575-1582. (PDF)

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