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15,460 results for “Neotrops”
Fig. 9. Idiops argus Simon, 1889 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 9. Idiops argus Simon, 1889, ♀, genitalia, lectotype (MNHN 4169). A. Dorsal view. B. Frontal view. Scale bars = 1 mm.
Fig. 8 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 8. Scanning electron micrographs of Idiops fuscus Perty, 1833, ♂ (CHNUFPI 0036). A. Chelicera (retrolateral view). B. Rastellum (retrolateral view). C. Tibial apophysis (dorsal view). D. Part of the palp, showing retrolateral depression. E–F. Detail of the distal portion of the embolus. E. Retrolateral view. F. Prolateral view. Abbreviation: EL = embolar lamella. Scale bars: A, C–D = 0.5 mm; B = 0.3 mm; E –F = 0.2 mm.
Fig. 17 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 17. Idiops duocordibus Fonseca-Ferreira, Guadanucci & Brescovit sp. nov. A–I. ♂, holotype (MPEG 0124). A. Prosoma (dorsal view). B. Prosoma (ventral view). C. Part of palp (retrolateral view). D–F. Palpal bulb. D. Dorsal view. E. Retrolateral view. F. Prolateral view. G. Tibia, metatarsus and tarsus I (prolateral view). H. Tibial apophysis (prolateral view). I. Tibial apophysis and metatarsus I (dorsal view). J–L. ♀, paratype (MPEG 0123). J. Prosoma (dorsal view). K. Prosoma (ventral view). L. Genitalia (dorsal view). Abbreviation: K = keel. Scale bars = 1 mm.
Fig. 21 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 21. Scanning electron micrographs of Idiops guri Fonseca-Ferreira, Guadanucci & Brescovit sp. nov., ♂ (IBSP 220523). A. Chelicera (retrolateral view). B. Rastellum (retrolateral view). C. Tibial apophysis (dorsal view). D. Part of the palp, showing retrolateral depression. E–F. Detail of the final portion of the embolus in prolateral view. Abbreviation: EL = embolar lamella. The arrow indicates the hook-shaped projection near the sperm duct. Scale bars: A = 0.4 mm; B, E–F = 0.2 mm; C = 0.3 mm; D = 1 mm.
Fig. 27 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 27. Idiops pirassununguensis Fukami & Lucas, 2005. A–I. ♂ (UFMG 607). A. Prosoma (dorsal view). B. Prosoma (ventral view). C. Part of palp (retrolateral view). D–F. Palpal bulb. D. Dorsal view. E. Retrolateral view. F. Prolateral view. G. Tibia, metatarsus and tarsus I (prolateral view). H. Tibial apophysis (prolateral view). I. Tibial apophysis and metatarsus I (dorsal view). J–L. ♀ (UFMG 11264). J. Prosoma, dorsal view. K. Prosoma, ventral view. L. Genitalia (dorsal view). Abbreviation: EL = embolar lamella. The arrow indicates a constriction. Scale bars = 1 mm.
Fig. 5. Chelicera teeth arrangement. A in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 5. Chelicera teeth arrangement. A. Smaller retrolateral teeth arranged in rows (I. camelus (Mello-Leitão, 1937)). B. Smaller retrolateral teeth arranged randomly (I. germaini Simon, 1892). C. Smaller retrolateral teeth absent (I. harti (Pocock, 1893)). Scale bars = 1 mm.
Fig. 6 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 6. Diagnostic characters of Idiops Perty, 1833 spp. A. Ocular disposition, with emphasis on the anterior lateral eyes apart from the others (I. fuscus Perty, 1833, CHNUFPI 0036). B. Rows of chelicera teeth (I. clarus (Mello-Leitão, 1946), FCE 0340). C. Rastellum (I. carajas Fonseca-Ferreira, Zampaulo & Guadanucci, 2017, MPEG 00109). D. Tarsus showing the pseudoscopula and tarsal claws (I. camelus (Mello-Leitão, 1937), MZSP 28832). E. Palpal bulb (I. carajas). F. Retrolateral depression of palpal bulb (I. rastratus (O. Pickard-Cambridge, 1889), MZSP 24215). G. Tibial apophysis (I. pirassununguensis Fukami & Lucas, 2005, MZSP 15651). H–I. Putative slit organ between the branches of the tibial apophysis (I. camelus). Abbreviations: PT = promarginal teeth; RT = retromarginal teeth. Scale bars: A–D, F– G = 0.5 mm; E = 1 mm; H–I = 0.05 mm.
Fig. 1 in Taxonomic revision of the Neotropical spiders of the genus Idiops Perty, 1833 (Araneae, Idiopidae), with description of four new species
Fig. 1. Natural habitats and diversity of burrows and trapdoors of Idiops Perty, 1833 spp. A–G. Ravine habitats. H–L. Ground habitats. Images by Rafael P. Indicatti (A–B); by Arthur Anker and Pedro H. Martins (C–D); by Leonardo S. Carvalho (E–F); by Rafael Fonseca-Ferreira (G–L).
Fig. 2. – Quiina zamorensis J. V. Schneid. & Zizka. A in Quiina maracaensis J. V. Schneid. & Zizka and Quiina zamorensis J. V. Schneid. & Zizka (Quiinaceae), two new species of Quiina Aubl. from the Neotropics
Fig. 2. – Quiina zamorensis J. V. Schneid. & Zizka. A. Branchlet with leaves and hermaphroditic inflorescence; B. Infructescence with immature fruits; C. Interpetiolar stipules at terminal node. [Homeier 333, BIEL] [Drawings: Anna Becker]
Fig. 3 in Quiina maracaensis J. V. Schneid. & Zizka and Quiina zamorensis J. V. Schneid. & Zizka (Quiinaceae), two new species of Quiina Aubl. from the Neotropics
Fig. 3. – Distribution map of Quiina maracaensis J. V. Schneid. & Zizka (•) and Quiina zamorensis J. V. Schneid. & Zizka ().
Fig. 1. – Quiina maracaensis J. V. Schneid. & Zizka. A in Quiina maracaensis J. V. Schneid. & Zizka and Quiina zamorensis J. V. Schneid. & Zizka (Quiinaceae), two new species of Quiina Aubl. from the Neotropics
Fig. 1. – Quiina maracaensis J. V. Schneid. & Zizka. A. Flowering branch; B. Hermaphroditic inflorescence; C. Interpetiolar stipules at terminal node; D. Fruit; E. Hermaphroditic flower. [A-C, E: Milliken & Lima 35, NY; D: Rosa 3121, NY] [Drawings: Anna Becker and Julio Schneider]
Acaulescence promotes speciation and shapes the distribution patterns of palms in Neotropical seasonally dry habitats
<p>Rainforests have been a source of lineages to open and seasonally dry habitats throughout Angiosperm evolution, especially in the Neotropics. However, the underlying mechanisms that allow such shifts remain poorly understood at large spatial scales. Here, we test whether acaulescence (an underground stem or a very short stem concealed in the ground) has affected the colonization and speciation in Neotropical seasonally dry habitats by <span>cocosoid palms</span> (Cocoseae). Acaulescent species maintain their growth underground, which increases their chances of survival from prolonged seasonal dry season and frequent fires. We use an integrative approach based on trait‐dependent diversification models, phylogenetic comparative methods, and ecological niche models. We found that shifts towards acaulescent growth form were accompanied by evolutionary transitions to seasonally dry habitats. Acaulescent lineages had higher speciation rates than non-acaulescent ones.<i> </i>However, the interaction between acaulescence and seasonally dry habitats had no significant effect on Cocoseae speciation rates. Acaulescent palms are primarily distributed in Neotropical seasonally dry habitats and non-acaulescent palms are concentrated in Amazonian rainforests. Our results suggest that an underground stem, with high carbohydrate and water storage capacity, is a preadaptation by which rainforest lineages were able to colonize and diversify in new fire-prone, increasingly seasonal and drier adaptive zones. The projected global expansion of dry seasonal habitats requires an understanding of how drought-avoidance functional traits evolve and how they are linked to seasonally dry habitats. Our results are, thus, a step forward in determining plant response mechanisms to drier and seasonal conditions.</p>
FIGURE 43 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 43. Centruroides yucatanensis, sp. nov., ♀ (CNAN T01417), habitus. A. Dorsal aspect. B. Ventral aspect. Scale bars = 10 mm.
FIGURE 42 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 42. Centruroides yucatanensis, sp. nov., ♂ (CNAN T01416), habitus. A. Dorsal aspect. B. Ventral aspect. Scale bars = 10 mm.
FIGURE 41 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 41. Centruroides chanae, sp. nov., ♀ (CNAN T01405), habitus. A. Dorsal aspect. B. Ventral aspect. Scale bars = 5 mm.
. mm 5 = bars Scale. aspect Ventral. B. aspect Dorsal. A. habitus,) 01407 T CNAN (♂,. nov. sp, chanae Centruroides. 40 FIGURE in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
. mm 5 = bars Scale. aspect Ventral. B. aspect Dorsal. A. habitus,) 01407 T CNAN (♂,. nov. sp, chanae Centruroides. 40 FIGURE
FIGURE 37. Centruroides schmidti Sissom 1995 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 37. Centruroides schmidti Sissom 1995, ♀ (CASENT 9073317), habitus. A. Dorsal aspect. B. Ventral aspect. Scale bars = 5 mm
FIGURE 35 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 35. Centruroides berstoni, sp. nov., ♀ (CASENT 9073313), habitus. A. Dorsal aspect. B. Ventral aspect. Scale bars = 5 mm.
. mm 5 = bars Scale. aspect Ventral. B. aspect Dorsal. A. habitus,) 9073278 CASENT (♂, 1995 Sissom schmidti Centruroides. 36 FIGURE in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
. mm 5 = bars Scale. aspect Ventral. B. aspect Dorsal. A. habitus,) 9073278 CASENT (♂, 1995 Sissom schmidti Centruroides. 36 FIGURE
FIGURE 23. Centruroides Marx, 1890 in Systematic Revision Of The Arboreal Neotropical "Thorellii" Clade Of Centruroides Marx, 1890, Bark Scorpions (Buthidae C.L. Koch, 1837) With Descriptions Of Six New Species
FIGURE 23. Centruroides Marx, 1890, telson, dorsal aspect. A, D. C. rileyi Sissom, 1995, A. ♂ (CNAN SC4002), D. ♀ (CNAN SC4003). B, E. C. hamadryas, sp. nov., B. holotype ♂ (CNAN T01408), E. paratype ♀ (CNAN T01415). C, F. C. hoffmanni Armas, 1996, C. ♂, F. ♀ (CNAN SC3996). G, J. C. cuauhmapan, sp. nov., G. holotype ♂ (CNAN T01396), J. paratype ♀ (CNAN T01399). H, K. C. berstoni, sp. nov., H. holotype ♂ (CASENT 9073325), K. paratype ♀ (CASENT 9073313). I, L. C. chanae, sp. nov., I. holotype ♂ (CNAN T01403), L. paratype ♀ (CNAN T01405). M, P. C. catemacoensis, sp. nov., M. holotype ♂ (CNAN T01424), P. paratype ♀ (CNAN T01423). N, Q. C. schmidti Sissom, 1995, N. ♂ (CASENT 9073316), Q. ♀ (CASENT 9073317). O, R. C. yucatanensis, sp. nov., O. holotype ♂ (CNAN T01416), R. paratype ♀ (CNAN T01418). Scale bars = 1 mm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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