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Fig. 20 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 20. Specimen scores representing population samples of Prosciurillus alstoni from the eastern segment of central Sulawesi and the southeastern peninsula (filled triangle, N 5 63) and P. topapuensis from the mountainous western half of the central core of the island (empty triangle, N 5 50) projected onto the first and second principal components extracted from principal-components analysis. The ellipses outline 95% confidence limits for the specimen scores forming each cluster. Equations for the regression lines are: P. leucomus, Y 5 0.332X20.056 (F 5 26.56, P 5,0.01); P. alstoni, Y 5 0.176X+0.064 (F 5 7.99, P 5,0.01). Each regression line of the second principal component on the first component is clearly distinct from the other; while their Y-intercepts are significantly different (20.056 versus +0.064; F 5 31.49, P 5,0.001). their slopes are not (0.332 versus 0.176; F 5 2.97, P 5 0.087). See table 22 for correlations and percent variance.
Fig. 19 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 19. Specimen scores representing population samples of Prosciurillus alstoni and P. weberi (8- pointed star; N 5 5) projected onto the first and second principal components extracted from principalcomponents analysis. Symbols identifying samples of P. alstoni are: filled circle 5 Pinedapa, N 5 19; filled triangle 5 Kuala Navusu and Sungai Tolewonu, N 5 32; cross 5 southeastern peninsula, N 5 11; star 5 Usu, lectotype of sarasinorum. Heavy arrow identifies score for the holotype of weberi; delicate arrows point to lectotype (top) and paralectotype (bottom) of mowewensis. See table 21 for correlations and percent variance.
Fig. 11 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 11. Collection localities for samples of four species in the Prosciurillus leucomus group: P. leucomus, P. alstoni, P. weberi, and P. topapuensis. The collection site for Prosciurillus sp., which is represented by a subfossil fragment, is also indicated. Distribution of the fifth member, P. rosenbergii, in Kepulauan Sangihe is portrayed on the map in figure 28. Numbers key to localities described in the gazetteer where specimens are also identified by museum initials and catalog numbers. The inset map, right (rectangle in larger map, above), contains collection sites (1–12) for P. topapuensis scattered along Musser's transect from the Sungai Miu to Gunung Nokilalaki. The dashed contour line at 1300 m marks the approximate boundary between tropical lowland evergreen rain forest and tropical lower montane forest.
Fig. 15 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 15. Specimen scores representing two population samples of Prosciurillus leucomus projected onto the first and second principal components extracted from principal-components analysis. Symbols identifying samples are: filled circle 5 northeastern peninsula (Likupang, Teteamoet, Rurukan, Temboan; N 5 18); X 5 western segment of northern peninsula (Bumbulan, Sungai Paleleh, Gunung Ile-Ile, Labuan Sore, Bumbarujaba; N 5 8). Ellipses outline 95% confidence limits for the specimen scores representing each population sample. See table 18 for correlations and percent variance.
Fig. 12 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 12. Dorsal views of skulls representing species of Prosciurillus. Top row, left to right: P. alstoni (AMNH 226076; Kuala Navusu; ONL 5 46.6 mm) and P. topapuensis (AMNH 225504; Gunung Kanino; ONL 5 45.0 mm); we employ these two as exemplars of species in the P. leucomus group. Bottom row, left to right: P. abstrusus (AMNH 101378, holotype; Pegunungan Mekongga; ONL 5 38.2 mm) and P. murinus (AMNH 225496; Gunung Kanino; ONL 5 34.4 mm); these are the only species comprising the P. murinus group.
Fig. 16 in Systematic Review of Endemic Sulawesi Squirrels (Rodentia, Sciuridae), with Descriptions of New Species of Associated Sucking Lice (Insecta, Anoplura), and Phylogenetic and Zoogeographic Assessments of Sciurid Lice
Fig. 16. Reproduction of Anderson's (1879) color plate of ''Sciurus alstoni'' (5 Prosciurillus alstoni).
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. 1 in Nasal vaccination of six squirrel monkeys (Saimiri sciureus): Improved immunization protocol against Toxoplasma gondii with a nanoparticle-born vaccine
Fig. 1. Schedule of the vaccinal protocol and of the immunological analysis performed on the 6 Saimiris.
Fig. 2. T in Nasal vaccination of six squirrel monkeys (Saimiri sciureus): Improved immunization protocol against Toxoplasma gondii with a nanoparticle-born vaccine
Fig. 2. T-cell immune response analyzed by IFN-γ ELISPOT on PBMC from 6 Saimiris. The results are presented as Spot Forming Units for 106 PBMC (left), before the immunization (T0), one month after the prime, 5 months after the 1st boost and 2 months after the 2nd boost. A representative picture of the ELISPOT plate after the 2nd boost is presented (right). Only 4 animals were analyzed by ELISPOT after the 2nd boost due to blood coagulation in the sampling tubes. Statistical analyses were made by KruskalWallis test, * p <0.05, ** p <0.01.
Fig. 3 in Nasal vaccination of six squirrel monkeys (Saimiri sciureus): Improved immunization protocol against Toxoplasma gondii with a nanoparticle-born vaccine
Fig. 3. Humoral immune response analyzed by ELISA on serum for each Saimiri. The results are presented as optical density (OD) before the immunization (T0), and 2 months after the 2nd boost. Serum from one seropositive and three seronegative humans were used as positive and negative controls, respectively. Cut-off was determined at each dilution, as the mean + 2.5xSD of the negative controls.
Fig. 1 in Testing the parasite-mediated competition hypothesis between sympatric northern and southern flying squirrels
Fig. 1. Map of sites (n = 30) used to survey the presence of the intestinal parasite Strongyloides robustus in northern and southern flying squirrels in Ontario from June–September 2019. Symbol shape represents squirrel species detected at a site: square = northern flying squirrel, cross = southern flying squirrel, circle = both, and triangle = neither. The colour of symbol indicates whether S. robustus was detected at a site: grey = absent (n = 23) and black = present (n = 7). Inset shows the location of our study area in Ontario, Canada. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
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