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161 results for “high Andes”
FIGURE 2 in High liverwort diversity in the tropical Andes as evidenced by the discovery of three new species of Radula (Radulaceae)
FIGURE 2. Distribution of Radula ilkiuborgesiae (green dot), R. longicarinata (red triangle) and R. magna (yellow pentagon). Map made by Paulo Eduardo Silva Bezerra.
FIGURE 1. Radula ilkiuborgesiae. A. Habit with androecia. B. Marginal leaf cells. C. Habit. D. Median leaf cell with oil bodies. E. Median leaf cells. F in High liverwort diversity in the tropical Andes as evidenced by the discovery of three new species of Radula (Radulaceae)
FIGURE 1. Radula ilkiuborgesiae. A. Habit with androecia. B. Marginal leaf cells. C. Habit. D. Median leaf cell with oil bodies. E. Median leaf cells. F. Cladograph of plants. G. Habit. H. Leaves. I. Cross section of stem. J. Habit in dorsal view (A, C, G = 500 µm, B, D, E = 25 µm, H = 100 µm, I = 50 µm, J = 250 µm; All from the holotype).
FIGURE 4. Radula magna. A. Habit. B. Marginal leaf cells. C. Median leaf cells with oil bodies. D. Leaves. E. Habit. F in High liverwort diversity in the tropical Andes as evidenced by the discovery of three new species of Radula (Radulaceae)
FIGURE 4. Radula magna. A. Habit. B. Marginal leaf cells. C. Median leaf cells with oil bodies. D. Leaves. E. Habit. F. Cladograph of plants. G. Cross section of stem (A, D, E = 500 µm, B, C = 25 µm, G = 100 µm; All from the holotype).
Data from: Abundance and morphometry changes across the high-mountain lake-size gradient in the tropical Andes of Southern Ecuador
The number, size, and shape of lakes are key determinants of the ecological functionality of a lake district. The lake area scaling relationships with lake number and volume enable upscaling biogeochemical processes and spatially considering organisms' metapopulation dynamics. These relationships vary regionally depending on the geomorphological context, particularly in the range of lake area <1 km2 and mountainous regions. The Cajas Massif (Southern Ecuador) holds a tropical mountain lake district with 5955 water bodies. The number of lakes deviates from a power law relationship with the lake area at both ends of the size range; similarly to the distributions found in temperate mountain ranges. The deviation of each distribution tail does not respond to the same cause. The marked relief limits the size of the largest lakes at high altitudes, whereas ponds are prompt to a complete infilling. A bathymetry survey of 202 lakes, selected across the full-size range, revealed a volume-area scaling coefficient larger than those found for other lake areas of glacial origin but softer relief. Water renewal time is not consistently proportional to the lake area due to the volume-area variation in midsize lakes. The 85% of the water surface is in lakes >104 m2 and 50% of the water resources are held in a few ones (∼10) deeper than 18 m. Therefore, midlakes and large lakes are by far more biogeochemically relevant than ponds and shallow lakes in this tropical mountain lake district.
FIGURE 1. Minuartia altoandina. A. Plant, general aspect. B in A new species of Minuartia (Caryophyllaceae) restricted to the high Andes of South America
FIGURE 1. Minuartia altoandina. A. Plant, general aspect. B. Detail of decussate phyllotaxy. C. Detail of pilose leaf margin. D. Young flower. E. Open, semi-dissected flower. F. Gynoecium. Drawn by Francisco Rojas from C.A. Zanotti & M.A. Suescún 269 (holotype SI).
FIGURE 11 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 11. Pleuroxus fryeri sp. nov., adult parthenogenetic female from Crater Lake, Licancabur Volcano, Chile- Bolivia border. A. Lateral view; B. Ventral view; C. Anterior view; D. Lateral view of female with removed valve; E–F. Head, lateral and ventro-lateral view; G–H. Head pores. Scale bars 0.1 mm for A–G, 0.01 mm for H.
FIGURE 12 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 12. Pleuroxus fryeri sp. nov., adult parthenogenetic female from Crater Lake, Licancabur Volcano, Chile- Bolivia border. A–B. Valve and its surface; C–G. Setae at different portions of valve margin; H–I. Postabdomen; J–L. Postabdominal claw. Scale bars 0.1 mm.
FIGURE 4 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 4. Daphnia paggii sp. nov., adult male from Salar de Lagunillas, Chile. A. Lateral view; B. Head; C. Free margin of valve, inner view; D. Setae at antero-ventral angle of valve; E–F. Setae at medium portion of valve ventral margin; G. Setae at postero-ventral portion of valve; H. Setae at posterior margin of valve; I. Postabdomen, lateral view; J–K. Its distal portion, lateral and dorsal view; L. Postabdominal claw; M. Antenna I, distal portion; N. Antenna II; O–P. Limb I and distal portion of large seta on its outer distal lobe; Q. Anterior seta 1 on inner-distal portion of limb II. Scale bars 1 mm for A, C; 0.1 mm for B, D–Q.
FIGURE 6 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 6. Ilyocryptus cf. nevadensis, appendages of adult parthenogenetic female from a small stream in wet prairie, Parinacota Region, Chile. A–B. Antenna I, lateral and anterior view; C. Antenna II, anterior view; D. Its exopod. E–F. Apical and lateral swimming seta of antenna II; G. Distal portion of limb I. Scale bars 0.1 mm.
FIGURE 5 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 5. Ilyocryptus cf. nevadensis, adult parthenogenetic female from a small stream in wet prairie, Parinacota Region, Chile. A. Lateral view; B. Anterior view; C–E. Head, lateral, ventral and dorsal view; F. Reticulation on valve; G–I. Setae at antero-ventral, ventral and posterior margin of valve; J–K. Postabdomen and armature of its basal portion; L. Large lateral setae; M. Postabdominal claw; N. Postabdominal seta. Scale bars 0.1 mm.
FIGURE 3 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 3. Daphnia paggii sp. nov., appendages of adult parthenogenetic female from Salar de Lagunillas, Chile, all in anterior view. A. Maxilla I; B–C. Limb I; D–F. Limb II, its distal portion and gnathobase; G–I. Limb III, its inner-distal portion and filtering seta of gnathobase; J–K. Limb IV and its inner-distal portion; L. Limb V. Scale bars 1 mm.
FIGURE 1 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 1. Daphnia paggii sp. nov., adult parthenogenetic female from Salar de Lagunillas, Chile (locality 3). A–B. Lateral and ventral view; C–D. Head, lateral view; E–F. Head, ventral and dorsal view; G. Medium portion of valve ventral margin, inner view; H. Postero-ventral portion of valve; I–J. Postabdomen, lateral view; K–L. Postabdominal claw. Scale bars 1 mm for A–B; 0.1 mm for D–L.
FIGURE 7 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 7. Macrothrix atahualpa, adult parthenogenetic female from Laguna Chungará, Chile. A. Lateral view; B. Head, lateral view; C. Valve; D–F. Setae at antero-ventral and postero-ventral portion of valve; G–H. Postabdomen and its basal portion; I–J. Postabdominal claw, outer and inner view; K. Postabdominal seta; L–M. Antenna I in external view and its distal end in inner view. Scale bars 0.1 mm.
FIGURE 25 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 25. Geoffreya fryeri gen. nov., sp. nov., appendages of parthenogenetic female from Salar de Lagunillas, Chile. A. Antenna I; B. Antenna II; C–D. Limb I and its distal portion; E–F. Limb II and its distal portion; G. Distal portion of limb III; H. Limb IV; I. Limb V. Scale bars 0.1 mm.
FIGURE 23 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 23. Coronatella cf. circumfimbriata, adult parthenogenetic female from Salar de Lagunillas, Chile. A. Lateral view; B. Dorsal head pores; C. Posterior margin; D. Postabdomen; E. Antenna I; F. Antenna II; G. Distal portion of limb I; H. Limb III; I. Limb IV; J. Limb V. Scale bars 0.1 mm.
FIGURE 22 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 22. Alona altiplana sp. nov., head and thoracic appendages of parthenogenetic female from Salar de Lagunillas, Chile. A. Antenna I; B. Antenna II; C. Limb I; D. Its outer distal lobe. E. Limb II; F–G. Limb III and basal endite of its inner-distal portion; H. Limb IV; I. Limb V. Scale bars 0.1 mm.
FIGURE 24 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 24. Geoffreya fryeri gen. nov., sp. nov., parthenogenetic female from Salar de Lagunillas, Chile. A. Large adult; B. Small adult; C. Juvenile; D–F. Dorsal head pores; G–J. Labrum; K. Free margin of valve; L. Posterior margin of valve. Scale bars 0.1 mm.
FIGURE 20 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 20. Alona altiplana sp. nov., parthenogenetic female from Crater Lake, Licancabur Volcano, Chile-Bolivia border. A–D. Large adult in lateral, ventral, anterior and dorsal view; E. Head; F. Dorsal head pores; G. Sculpture of valves; H. Abdomen. Scale bars 0.1 mm for A–E, 0.01 mm for F–H.
FIGURE 19 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 19. Alona altiplana sp. nov., parthenogenetic female from Crater Lake, Licancabur Volcano, Chile-Bolivia border (A, L) and Salar de Lagunillas, Chile (B-K). A–B. Large adult; C. Juvenile of instar I; D. Juvenile II. E. Minimal size of reproduction; F. Head shield; G–H. Dorsal head pores; I. Labrum; J. Free margin of valve; K–L. Posterior margin. Scale bars 0.1 mm.
FIGURE 21 in The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430
FIGURE 21. Alona altiplana sp. nov., parthenogenetic female from from Crater Lake, Licancabur Volcano, Chile- Bolivia border. A–C. Postabdomen; D. Postabdominal claw; E–F. Head; G–H. Molar surfaces of mandibles (right mandible on the right side of photo). Scale bars 0.01 mm.
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