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646 results for “Nymphes”
Figure 2 in Is a diet of Planococcus citri nymphs and adults suitable for Chrysoperla externa for use in biological control?
Figure 2. (A) Duration (days) and (B) survival (x100%) of the preimaginal period of Chrysoperla externa for larvae fed on Ephestia kuehniella eggs and/or Planococcus citri nymphs and adults. Means ± SE under the horizontal bar differ from each other by the Dunn test (Kruskal-Wallis, p<0.05). Means containing an asterisk* differ from each other by the log-rank test (Kaplan-Meier). EK= E. kuehniella eggs; EK + PC= E. kuehniella eggs in the first instar and P. citri in subsequent instars; PC= P. citri in all instars.
Figure 20 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 20. (a) Lacertilian on an open turret. (b) Perforations (p) following passage of Legion ants on an open turret after an episode of heavy rainfall; o: Opening in the shape of its clypeus practiced by the nymph in response to rainfall. (c) Perforations (p) following a passage of army ants on a turret that the nymph closed with a clay occlusion (clc) after the cessation of precipitation. (d) Bottom of a well after passage of ants; the remainder of the hook of the end of a front leg (fl) is visible. (e) Ant in the bottom of a well.
Figure 18 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 18. Relationship between Tachigali's trunk diameters and distances to G. chlorogena's edifices. (a) Plotting distances to all the buildings associated with a given tree. (b) Plotting the average distance to the buildings associated with a given tree.
Figure 16 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 16. (a) 6:59 a.m.: Opening resulting from the enlargement of a small perforation, such as that shown on Figure 15a. (b) 7:03 a.m.: Continuation of the enlargement; the nymph is discernible. (c) 8:44 a.m.: The enlargement is finished; the nymph appears, on can distinguish its eyes (ey) and its clypeus (cly). (d) 9:38 a.m.: The nymph, gripped at the opening, is equalising the edge by scratching with the hook-shaped end of its forelegs (fl); one distinguishes also an antenna (ant) and the clypeus (cly). (e) 10:05 a.m.: The equalisation of the edge is complete, the opening is perfectly circular and the nymph withdrew. (f) 6:08 p.m.: The nymph leaves its building. Observation on 01.09.2019.
Figure 12 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 12. (a) Circular orifice resulting from a slight pressure of the mass of soggy clay against the wall of the summit. (b) Orifice with imprint of clypeus (cly) and pronotum (pro) covered with soggy clay. (c–f) occlusion of the orifice shown in Figure 12a after end of rainfall, by injection of soggy clay (captured images with the automatic camera Brinno timelapseTLC200 Pro).
Figure 14 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 14. (a) Exuvia attesting for the moulting of a nymph on its own building (photos Vanessa Gama). The white line represents the trip of the nymph between the opening at the top of the turret and the place where the moult took place. Note the rotation made by the nymph at the bottom of its turret. (b) imago from another nymph drying its wings after moulting on its own building. (c) Migration of a nymph from its turret to the branch where it has moulted. o: Opened turret.
Figure 11 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 11. (a) Spontaneous reconstruction of a new turret. (b) Diagram of deviation by the nymph of the outlet of the well: obt: Filling with clay of the old outlet, dfl: Deviation made for a new outlet, ft: Former turret, nt: New turret.
Figure 13 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 13. Correlation between intense rainfalls (////) and temporary and simultaneous opening of 35 turrets, during 3 episodes, between July 19 and 23, 2016.
Figure 15 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 15. Four stages of opening a turret. (a) Beginning of the draft work (6:21 a.m.). (b) draft in progress (9:58 a.m.). (c) Draft completed (10:43 a.m.). (d) Equalisation of the border completed (11:35 a.m.). Observation on 19.08.2019.
Figure 10 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 10. Spontaneous reduction in the height of the turret by construction of an internal top and drying out of the old one. The white line represents the old wall of the upper part of the turret.
Figure 7 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 7. Occlusion in progress by the nymph with clay mixed with its urine (mcl) after its turret has been severed.
Figure 5 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 5. (a) concrete moulding inside an 88 cm deep well, 26 cm of which have been excavated. The curvature (circle), just below the ground level, is clearly visible. The turret is traced (tur). (b) oblique galleries (gal) at the base of the well, oblique as well, up to a curvature at 15 cm from the bottom; cem: Cement moulding.
Figure 4 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 4. Manaus and the Adolfo Ducke Reserve. Google Maps https://www.google.ch/maps/place/Reserva+Florestal+ Adolpho+Ducke/@-2.8580657,-60.0242213,71,452 m/data =!3 m1!1e3!4 m5!3 m4!1s0x926c1ec4d40d48b7:0x897d 42e519777eb2!8 m2!3d-2.9633439!4d-59.9228331.
Figure 3 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 3. Endoscopic images of the nymph in its well; lbi: Labium, frl: Foreleg,mdl: Middle leg, hnl: Hind leg. Clay can be seen on the head of the nymph.
Figure 17 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 17. Six snapshots illustrating the nymph's rotations when equalising the edge of the opening with its forelegs. (a) 9:15 a.m. (b) 9:35 a.m. (c) 9:37 a.m. (d) 9:38 a.m. (e) 9:41 a.m. (f) 9:45 a.m.. Arrows represent the rotations from the previous snapshot; ant: Antenna, fl: Foreleg, cly: Clypeus. Observation on 01.09.2019.
Figure 6. A in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 6. A pile of stems and leaves became an obstacle during the construction of this turret; the nymph avoided it by raising the turret obliquely, but it reestablished the verticality as soon as the obstacle was passed.
Figure 1 in The Nymph Architect of the Cicada Guyalna chlorogena: Behaviours and Ecosystem
Figure 1. (a) View of a turret. (b) Turret removed. (c) Entrance to the well. (d) Inner surface of the summit.
Data from: Cicada nymph predation by ants
<p>Temperate cicadas are characterized by their extremely long underground nymphal stages, which last 5-20 years or more. Due to the prolonged underground juvenile stage, little is known about their juvenile survival and predation risk. Here, we report the extensive aboveground predation of eggs and 1<sup>st</sup> instar nymphs of the common Japanese brown cicada <em>Graptopsaltria nigrofuscata</em> by colonial ants in a city park. The greater than 95% mortality during the egg and 2<sup>nd</sup> instar nymph stages in periodical cicadas may be due to the aboveground predation by colonial ants. The observed predation by colonial ants may be a major source of mortality in this cicada species and other temperate cicadas. The typical life cycle of this Japanese cicada and temperate cicadas in general is proposed based on the current and previous studies.</p>
Fitness of gnotobiotic Rhodnius prolixus nymphs
<p>Kissing bugs (Hempitera: Reduviidae) are obligately and exclusively blood feeding insects. Vertebrate blood is thought to provide insufficient B vitamins to insects, which rely on obligate symbiotic relationships with bacteria that provision these nutrients. Kissing bugs harbor environmentally acquired bacteria in their gut lumen, without which they are unable to develop to adulthood. Early experiments identified a single bacterial species, <em>Rhodococcus rhodnii</em>, as a symbiont of <em>Rhodnius prolixus</em>, but modern studies of the kissing bug microbiome suggest that <em>R. rhodnii</em> is not always present or abundant in wild-caught individuals. We asked whether <em>R. rhodnii</em> or other bacteria alone could function as symbionts of <em>R. prolixus</em>. Bacteria-free (axenic) insects were produced whose microbiome could be experimentally manipulated to produce insects with known microbiomes (gnotobiotic). We found that gnotobiotic insects harboring <em>R. rhodnii</em> alone developed faster, had higher survival, and laid more eggs than gnotobiotic <em>R. prolixus </em>harboring other bacterial monocultures, including other described symbionts of kissing bugs and several related <em>Rhodococcus </em>species. <em>R. rhodnii</em> grew to high titer in the guts of <em>R. prolixus</em> while other tested species were found at much lower abundance. <em>Rhodococcus </em>species tested had nearly identical B vitamin biosynthesis genes, and dietary supplementation of B vitamins had a relatively minor effect on development and survival of gnotobiotic <em>R. prolixus</em>. Our results indicate that <em>R. prolixus</em> have a higher fitness when harboring <em>R. rhodnii</em> than other bacteria tested, and that symbiont B vitamin synthesis is likely a necessary but not sufficient function of gut bacteria in kissing bugs.</p>
Figs 8–11 in A NEW GENUS OF DICTYOPHARIDAE (HOMOPTERA) FROM BITTERFELD AMBER BASED ON A NYMPH
Figs 8–11. Bathymyza longirostris sp. n., holotype: 8 – body, dorsal view; 9 – head,
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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