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102 results for “edaphism”
Data from: Morphological and genetic discrepancies in populations of Oreocarya paradoxa and O. revealii: the impact of edaphic selection on recent diversification in the Colorado Plateau
PREMISE OF THE STUDY: Investigations of recently derived and edaphically (soil) defined plant systems have provided insight into important mechanisms of ecological divergence. We investigated the impact of edaphic adaptation on recent divergence between two Colorado Plateau endemics: the gypsum facultative Oreocarya revealii (Boraginaceae) and its more generalist sister species O. paradoxa. We assessed morphological stability, genetic identity, and soil chemistry to determine whether O. revealii is a distinct lineage edaphically adapted from O. paradoxa, as has been described in the literature. METHODS: We genotyped 21 populations throughout the ranges of both species using 11 microsatellite markers and three plastid regions (trnL-F, trnT-L, trnQ-rps16) for haplotype analysis. We compared these data with soil chemistry (Ca and S concentrations, indicating gypsum levels), location, and morphological identity of populations. KEY RESULTS: Soil chemistry failed to explain genetic or morphological identity in either taxon. Haplotype analysis suggests ancestral variation in the more geographically restricted O. revealii, along with regional geographic isolation. A discontinuity was identified between the morphological and genetic identity in several populations, suggesting incomplete lineage sorting and the nonfixation of identifying morphological traits. CONCLUSIONS: Oreocarya revealii is unlikely to have arisen via edaphic selection, because soil chemistry of population sites, morphology of individuals, and genetic identity are not strongly correlated. The nonfixation of identifying traits is likely a result of recent divergence in this system, and the potentiality of such discrepancies should be considered when investigating recently diversified gypsum-associated groups.
FIGURES 2–9 in Geoparnus rhinoceros sp. nov., a new edaphic dryopid with unusual sexual dimorphism (Coleoptera: Dryopidae)
FIGURES 2–9. Geoparnus rhinoceros sp. nov., 2) male head, dorsal view; 3) male head, lateral view; 4) pronotum, dorsal view; 5) hypomeron and part of prosternum, ventral view; 6) prothorax, ventral view; 7) meso- and metathorax, ventral view; 8) detail of flat-bottomed punctures with stiff setae, ventral view; 9) detail of stiff seta, lateral view.
FIGURES 10–14 in Geoparnus rhinoceros sp. nov., a new edaphic dryopid with unusual sexual dimorphism (Coleoptera: Dryopidae)
FIGURES 10–14. Geoparnus rhinoceros sp. nov.; 10) elytron, lateral view; 11) male protibia, lateral view; 12) abdomen in male, ventral view; 13) fifth ventrite in male, ventral view; 14) fifth ventrite in female, ventral view.
FIGURES 20–24 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 20–24. Veigaia vermiculifera sp. nov., Female. 20. Dorsal idiosoma; 21. Ventral idiosoma; 22. Tubular structures of insemination apparatus associated with coxae IV; 23. Tectum; 24. Chelicera, lateral view. Scales: 100 µm: Figs 20–22; 50 µm: Figs 23, 24.
FIGURES 15–19 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 15–19. Veigaia slovaca sp. nov., Female. 15. Dorsal idiosoma; 16. Ventral idiosoma; 17. Tubular structures of insemination apparatus associated with coxae IV; 18. Tectum; 19. Chelicera, lateral view. Scales: 100 µm: Figs 15, 16; 50 µm: Figs 17–19.
FIGURES 11–14 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 11–14. Vei ga ia pentachaeta sp. nov., Female. 11. Dorsal idiosoma; 12. Ventral idiosoma; 13. Tectum; 14. Chelicera, lateral view. Scales: 100 µm: Figs 11, 12; 50 µm: Figs 13, 14.
FIGURES 5–6 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 5–6. Vei ga ia incisilobata sp. nov., Female. 5. Dorsal idiosoma, form with longer and smooth setae (specimen from Slovakia); 6. Ventral idiosoma. Scale: 100 µm.
FIGURES 7–10 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 7–10. Veigaia incisilobata sp. nov., Female. 7. Posterolateral region of podonotum, form with shortened and pilose setae (specimen from Slovakia); 8. Dorsal idiosoma, form with short and pilose setae (specimen from Bulgaria); 9. Chelicera, dorsal view; 10. Tectum. Scales: 100 µm: Figs 7–9; 50 µm: Fig. 10.
FIGURES 1–4 in New edaphic mites of the genus Ve i g a i a from Slovakia and Bulgaria, with a key to the European species (Acari, Mesostigmata, Veigaiidae)
FIGURES 1–4. Veigaia carpathica sp. nov., Female. 1. Dorsal idiosoma, with chaetotactic notation of podonotal and opisthonotal setae; 2. Ventral idiosoma, with chaetotactic notation of some ventral setae; 3. Tectum; 4. Chelicera, lateral view. Scales: 100 µm: Figs 1, 2; 50 µm: Figs 3, 4.
FIGURES 60–67. Protogamasellus sigillophorus n in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 60–67. Protogamasellus sigillophorus n. sp. Adult female, dorsal idiosoma (60), ventral idiosoma (61), tectum (62), chelicera (63), ventral gnathosoma (64), ventral tarsus II (65), dorsal tarsus II (66) and tibia and tarsus IV (67).
FIGURES 51–59 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 51–59. Proctolaelaps spp.: P. paulista n. sp. Adult female, dorsal idiosoma (51), ventral idiosoma (52), spermathecal apparatus (53), tectum (54), chelicera (55), ventral gnathosoma (56) and tarsus IV (57). P. intermedius Athias–Henriot. Chelicera (58). P. wenkochingi (Samsinak). Chelicera, holotype female (59).
FIGURES 47–50 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 47–50. Proctolaelaps diffissus Karg. Adult female, ventral gnathosoma (47), chelicera (48), dorsal idiosoma (49), spermathecal apparatus (50).
FIGURES 11–15. Gamasellodes magniventris n in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 11–15. Gamasellodes magniventris n. sp. Adult female, dorsal idiosoma (11), ventral idiosoma (12), tectum
FIGURES 44–46 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 44–46. Lasioseius inguinalis Karg. Adult female, ventral idiosoma (44), chelicera (45) and pretarsus II (46, one paradactyl not visible).
FIGURES 1–10. Cheiroseius neophalangioides n in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 1–10. Cheiroseius neophalangioides n. sp. Adult female, dorsal idiosoma (1), ventral idiosoma (2), spermathecal apparatus (3), tectum (4), chelicera (5), ventral gnathosoma (6), pretarsus III (7) and tibia and tarsus IV (8). Adult male, ventral idiosoma (9) and spermatodactyl (10).
FIGURES 28–34 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 28–34. Lasioseius helvetius Chant. Adult female, dorsal idiosoma (28), ventral idiosoma (29), spermathecal apparatus (30), tectum (31), chelicera (32), ventral gnathosoma (33) and genu, tibia and tarsus IV (34).
FIGURES 35–43 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 35–43. Lasioseius quinisetosus Lindquist & Karg. Adult female, dorsal idiosoma (35), ventral idiosoma (36), spermathecal apparatus (37), tectum (38), ventral gnathosoma (39),chelicera (40 and 41), pretarsus IV (42) and tarsus II (43).
FIGURES 16–27 in Edaphic ascid mites (Acari: Mesostigmata: Ascidae) from the state of São Paulo, Brazil, with description of five new species
FIGURES 16–27. Lasioseius spp.: L. floridensis Berlese. Female spermatheca (16) and male chelicera (17). L. latinoamericanus n. sp. Adult female, dorsal idiosoma (18), ventral idiosoma (19), spermathecal apparatus (20), tectum (21), chelicera (22), ventral gnathosoma (23) and tarsus IV (24, one paradactyl not visible). Adult male, ventral idiosoma (25), tectum (26) and spermatodactyl (27).
FIGURES 1–7 in A new genus and species of edaphic mite (Acari: Mesostigmata: Eviphididae) from Iran
FIGURES 1–7. Pedoniphis persicus gen. nov, sp. nov., female. 1. Dorsal idiosoma; 2. Ventral idiosoma; 3. Subcapitulum; 4. Epistome; 5. Chelicera; 6. Epigynal shield, a variant form with genital setae off the shield; 7. Femur II. Figs 6 and 7 not to scale.
FIGURES 3–6 in Confirmation of occurrence of Trechus Clairville, 1806 in the Baltic amber forests, with description of a flightless edaphic species, and remarks on Trechoides Motschulsky, 1856 (Coleoptera: Carabidae: Trechini)
FIGURES 3–6. Trechus balticus sp. n., holotype. Fig. 3, left lateral aspect. Fig. 4, right lateral aspect. Fig. 5, left metepisternum (surrounded by a dotted line for better visualisation) and anterior part of elytral epipleuron. Fig. 6, apical portion of elytra, caudal view (the insertions of the setae of the apical triangle are marked by white circles).
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