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49 results for “Spermophilus”
FIGURE 3. Spermophilus glacialis Vinogradov, 1948 in Paleoparasitology in Russia, history and prospects
FIGURE 3. Spermophilus glacialis Vinogradov, 1948 (photograph by F.N. Golenishchev). Reproduced with permission of ZIN RAS.
Fig. 1 in Cryptosporidium rubeyi n. sp. (Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground squirrel species
Fig. 1. Cryptosporidium sp. Sbey11c oocysts from California ground squirrels (S. beecheyi). Differential interference contrast (DIC) microscopy (1000×), bar = 10 Mm.
Fig. 2 in Cryptosporidium rubeyi n. sp. (Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground squirrel species
Fig. 2. Phylogenetic relationships of partial 18S rRNA gene sequences of Cryptosporidium sp. Sbey11c from California ground squirrels (S. beecheyi) and other Cryptosporidium spp. inferred by neighbor-joining analysis with 1000 bootstrapping replicates.
Fig. 3 in Cryptosporidium rubeyi n. sp. (Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground squirrel species
Fig. 3. Phylogenetic relationships of partial actin gene sequences of Cryptosporidium sp. Sbey11c from California ground squirrels (S. beecheyi) and other Cryptosporidium spp. inferred by neighbor-joining analysis with 1000 bootstrapping replicates.
Fig. 4 in Cryptosporidium rubeyi n. sp. (Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground squirrel species
Fig. 4. Phylogenetic relationships of partial HSP70 gene sequences of Cryptosporidium sp. Sbey11c from California ground squirrels (S. beecheyi) and other Cryptosporidium spp. inferred by neighbor-joining analysis with 1000 bootstrapping replicates.
Figure 2 in Site selection of European ground squirrels (Spermophilus citellus) in Eastern Romania and how they are influenced by climate, relief, and vegetation
Figure 2. The European ground squirrel density (individuals/ha) variation against vegetation height measured in 872 surveyed squares (250 × 250 m grids) conducted during the 2013 season in Eastern Romania.
Figure 1 in Site selection of European ground squirrels (Spermophilus citellus) in Eastern Romania and how they are influenced by climate, relief, and vegetation
Figure 1. The study area location (in the small map marked with black) and the distribution of the surveyed squares (250 × 250 m grids) conducted during the 2013 season in Eastern Romania.
Fig. 6 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 6. Ground squirrel Spermophilus praecox sp. nov. from the late Pliocene and Early Pleistocene of southern Ukraine: Kryzhanovka 2 (A, J), Kotlovina 2 (E, F, K, L, Q, R), Kotlovina 3 (G, M, S), Yuzhny (B, N, T, U), Morskoy (C, D, H, I, V, W); upper cheek teeth (A–D, P3; E–I, P4; J–P, M1–M2; Q–W, M3), in occlusal views. A. ZIN 105160/1. B. GIN 1166/1. C. NMNHU-P MoT-2. D. NMNHU-P MoT-4. E. NMNHU-P 41-5588. F. NMNHU-P 41-5589. G. NMNHU-P 41-5611. H. NMNHU-P MoT-6. I. NMNHU-P MoT-10. J. ZIN 105160/5. K. NMNHU-P 41-5598 (holotype). L. NMNHU-P 41-5599. M. NMNHU-P 41-5613. N. GIN 1166/4. O. NMNHU-P MoT-14. P. NMNHU-P MoT-16. Q. NMNHU-P 41-5601. R. NMNHU-P 41-5602. S. NMNHU-P 41-5616. T. GIN 1166/11. U. GIN 1166/12. V. NMNHU-P MoT-31. W. NMNHU-P MoT-32. C, J, K, O, Q, S (inverted).
Fig. 8 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 8. Temporally-calibrated dental variation in P3, P4, M1–M2, M3, p4, and m3 of Spermophilus praecox sp. nov. and Spermophilus nogaici (Topachevsky, 1957). Abbreviations: anl, anteroloph; ants, antesinus; ast, anterostyle; antd, anteroconulid; anv, anterior valley; encd, entoconulid; enl, endoloph; hyd, hypoconid; hyp, hypocone; lanld, labial anterolophid; LH, Late Pleistocene–Holocene; lianld, lingual anterolophid; limtl, lingual metaloph; limtld, lingual metalophid; mes, mesostyle; metl, metaconule; pofd, postflexid; pro, protocone.
Fig. 9 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 9. Stratigraphic record of P3 (A), p4 (B), M1–M2 (C), and m1–m2 (D) sizes of Spermophilus praecox sp. nov. (circles) and Spermophilus nogaici Topachevsky, 1957) (triangles). Abbreviations: L, length; W, width; tal.W, talonid width; tri.W, trigonid width.
Fig. 4 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 4. Ground squirrel Spermophilus nogaici (Topachevsky, 1957) from the Early and Middle Pleistocene of southern Ukraine and southwestern Russia: Zhevakhova Gora 1 (A, C, N), Tarkhankut (D–F, O, T), Nogaisk (G–J, P, U–W, Z), Moiseevo 1 (Q), Cherevichnoe 1 (B, X), Tihonovka 1 (K, L), Bolshevik 2,I (M), lower cheek teeth (A, B, dp4; C–M, p4; N–S, m1–m2; T–Y, m3; Z, p4–m3), in occlusal (A–Z1), labial (Z2), and lingual (Z3) views. A. NMNHU-P ZG1-20. B. NMNHU-P Che1-41. C. NMNHU-P ZG1-24. D. NMNHU-P 50-26/65. E. NMNHU-P 50-26/110. F. NMNHU-P 50-26/122. G. NMNHU-P 27-106. H. NMNHU-P 27-540. I. NMNHU-P 27-541. J. NMNHU-P 27-543. K. NMNHU-P 29-4066. L. NMNHU-P 29-4075. M. NMNHU-P Bol2/1- 64. N. NMNHU-P ZG1-25. O. NMNHU-P 50-25/131. P. NMNHU-P 27-575. Q. ZIN 105151/33. R. NMNHU-P 29-4079. S. NMNHU-P Bol2/1-73. T. NMNHU-P 50-26/56. U. NMNHU-P 27-161. V. NMNHU-P 27-163. W. NMNHU-P 27-172. X. NMNHU-P Che1-68. Y. NMNHU-P 29-4099. Z. NMNHU-P 27-224. B, D, H, L, T, U, Y (inverted).
Fig. 2 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 2. Upper (A) and lower (B) sciurid cheek teeth illustrating the terminology employed here (after Marivaux et al. 2004; Comte et al. 2012; VianeyLiaud et al. 2013; and Maridet et al. 2017; with modifications). Abbreviations: aam, anterior arm of metacone (premetacrista sensu Comte et al. 2012; Vianey-Liaud et al. 2013); aap; anterior arm of protocone; aapa, anterior arm of paracone; alas, anterolabial sinus; anl, anteroloph; ansd, anterosinusid; ant, anterocone; ants, antesinus; ast, anterostyle; antd, anteroconulid; anv, anterior valley; cev, central valley; ecl, ectoloph; ecld, ectolophid; encd, entoconulid; end, entoconid; endr, entoconid ridge; enl, endoloph; enld, entolophid; esd, ectostylid; hyd, hypoconid; hyld, hypoconulid; hyld II, hypoconulid II (second hypoconulid); hyp, hypocone (hypostyle sensu Popova 2016); hyst, hypostyle (hypostyle 2 sensu Popova 2016); lamtl, labial metaloph; lamtld, labial metalophid; lanld, labial anterolophid; laprl, labial protoloph; lianld, lingual anterolophid; liansd, lingual anterosinusid; limtl, lingual metaloph; limtld, lingual metalophid; liprl, lingual protoloph; mecd, mesoconid; med, metaconid; mes, mesostyle; mesd, mesostylid; mesl, metastyle; met, metacone; metd, metastylid; metdtc, metastylid crest; metl, metaconule; metl II, metaconule II (second metaconule); mtld, metalophid; pap, posterior arm of paracone (postparacrista sensu Comte et al. 2012; Vianey-Liaud et al. 2013); par, paracone; parl, paraconule; pasl, parastyle; pasl II, parastyle II (second parastyle); plas, posterolabial sinus; poc, posterocone; pofd, postflexid; pol, posteroloph; pold, posterolophid; pov, posterior valley; prd, protoconid; pro, protocone; prst, protostyle; sd, sinusid; sin, sinus; talb, talonid basin; trdb, trigonid basin.
Fig. 5 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 5. Ground squirrel Spermophilus praecox sp. nov. from the Early Pleistocene of southern Ukraine: Kotlovina 3 (A) and Morskoy (B, C); mandibles in lateral (A1–C1), and medial (A2–C2) views. A. ZIN 105163/1. B. ZIN NMNHU-P MoT-63 (inverted). C. NMNHU-P MoT-64.
Fig. 3 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 3. Ground squirrel Spermophilus nogaici (Topachevsky, 1957) from the Early and Middle Pleistocene of southern Ukraine and southwestern Russia: Tarkhankut (A, B, G, H, I, O, U), Zhevakhova Gora 1 (F, N, T), Nogaisk (C, J, K, P, V, W, X), Moiseevo 1 (Q), Tihonovka 1 (D, L, R, S, Y, Z), Bolshevik 2,I (M); upper cheek teeth (A–E, P3; F, G, DP4; H–M, P4; N–S, M1–M2; T–Y, M3; Z, P3–M3), in occlusal (A–Z1), labial (Z2), and lingual (Z3) views. A. NMNHU-P 50-29/10. B. NMNHU-P 50-29/11. C. NMNHU-P 27-230. D. NMNHU-P 29-212. E. NMNHU-P Bol2/1-4. F. NMNHU-P ZG1-1. G. NMNHU-P 50-29/69. H. NMNHU-P 50-29/25. I. NMNHU-P 50-29/27. J. NMNHU-P 27-123. K. NMNHU-P 27-239. L. NMNHU-P 29- 216. M. NMNHU-P Bol2/1-24. N. NMNHU-P ZG1-13. O. NMNHU-P 50-27/5. P. NMNHU-P 27-110. Q. ZIN 105151/12. R. NMNHU-P 29-4037. S. NMNHU-P 29-4043. T. NMNHU-P ZG1-17. U. NMNHU-P 50-28/42. V. NMNHU-P 27-535. W. NMNHU-P 27-532. X. NMNHU-P 27-121. Y. NMNHU-P 29-4059. Z. NMNHU-P 29-4036. A–C, D, H–J, P, Q, T, X (inverted).
Fig. 7 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 7. Ground squirrel Spermophilus praecox sp. nov. from the late Pliocene and Early Pleistocene of southern Ukraine: Kotlovina 2 (A, B, H–J), Kotlovina 3 (C, J–L, U, V, Z), Kryzhanovka 2 (T), Yuzhny (M–O), Morskoy (D–G, P–S, W–Y); lower cheek teeth (A–G, p4; H–S, m1–m2; T–Y, m3; Z, p3–m3), in occlusal (A–Z1), labial (Z2), and lingual (Z3) views. A. NMNHU-P 41-5603. B. NMNHU-P 41-5604. C. NMNHU-P 41-5617. D. NMNHU-P MoT-34. E. NMNHU-P MoT-36. F. NMNHU-P MoT-39. G. NMNHU-P MoT-43. H. NMNHU-P 41-5606. I. NMNHU-P 41-5610. J. NMNHU-P 41- 5621. K. NMNHU-P 41-5622. L. NMNHU-P 41-5624. M. GIN 1166/13. N. GIN 1166/15. O. GIN 1166/16. P. NMNHU-P MoT-48. Q. NMNHU-P MoT-47. R. NMNHU-P MoT-50. S. NMNHU-P MoT-57. T. ZIN 105160/7. U. NMNHU-P 41-5627. V. NMNHU-P 41-5626. W. NMNHU-P MoT-58. X. NMNHU-P MoT-60. Y. NMNHU-P MoT-61. Z. ZIN 105163/1. B, G, Q, R, X, Y (inverted).
Fig. 1 in The evolution of early Spermophilus in eastern Europe and the antiquity of the Old World ground squirrels
Fig. 1. Geographic location of Spermophilus-bearing fossil localities (stars) discussed in the text.
Fig. 2 in Bartonella, Blechomonas and Trypanosoma in fleas from the long-tailed ground squirrel (Spermophilus undulatus) in northwestern China
Fig. 2. Phylogenetic tree of (A) Bartonella (gltA gene) and (B) Trypanosomatidae (18S rRNA gene) from the LTGR fleas (NJ; bootstrap replicates: 1000). The new sequences provided in the present study are indicated by a black circle (followed by the accession number).
Fig. 5 in Spermophilus citellus (Rodentia: Sciuridae)
Fig. 5.—An adult Spermophilus citellus from calcareous grassland in Perchtoldsdorf, Lower Austria, elevation 300 m, feeding on sage flowers (Salvia) on 30 June 2007. Used with permission of the photographer C. J. Böswarth.
Fig. 2 in Spermophilus citellus (Rodentia: Sciuridae)
Fig. 2.—Dorsal, ventral, and lateral views of skull and lateral view of mandible of an adult male Spermophilus citellus (Slovenian Museum of Natural History 7082) from Samoš, Deliblato Sands, Voivodina, Serbia. Greatest length of skull is 42.7 mm. Photographs by C. Mlinar used with permission.
Fig. 4 in Spermophilus citellus (Rodentia: Sciuridae)
Fig. 4.—Habitats commonly occupied by Spermophilus citellus in portions of its range: A, Romania, Iaşi County, Osoi, elevation 140 m; B, Macedonia, Mt. Jakupica, Gorno Begovo, elevation 2,000 m; C, Macedonia, Valandovo, elevation 150 m; D, Czech Republic, Mladá Boleslav, elevation 205 m. Photographs courtesy of B. Kryštufek (A) and A. Kryštufek (B–D).
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