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52 results for “Monomorium”
Fig. 36. Monomorium carbo Forel, 1910 in Faunal composition, diversity, and distribution of ants (Hymenoptera: Formicidae) of Dhofar Governorate, Oman, with updated list of the Omani species and remarks on zoogeography
Fig. 36. Monomorium carbo Forel, 1910, syntype, worker (CASENT0249908, AntWeb.org (Shannon Hartman)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 39. Monomorium exiguum Forel, 1894 in Faunal composition, diversity, and distribution of ants (Hymenoptera: Formicidae) of Dhofar Governorate, Oman, with updated list of the Omani species and remarks on zoogeography
Fig. 39. Monomorium exiguum Forel, 1894, worker (CASENT0922878, AntWeb.org (Michele Esposito)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 41. Monomorium niloticum Emery, 1881 in Faunal composition, diversity, and distribution of ants (Hymenoptera: Formicidae) of Dhofar Governorate, Oman, with updated list of the Omani species and remarks on zoogeography
Fig. 41. Monomorium niloticum Emery, 1881, worker (CASENT0922859, AntWeb.org (Michele Esposito)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 38. Monomorium sahlbergi Emery, 1898 in Faunal composition, diversity, and distribution of ants (Hymenoptera: Formicidae) of Dhofar Governorate, Oman, with updated list of the Omani species and remarks on zoogeography
Fig. 38. Monomorium sahlbergi Emery, 1898, worker (CASENT0922304, AntWeb.org (Michele Esposito)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 7 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 7. Percentage of repellency (PR) of Curcuma longa and Litsea cubeba against Monomorium pharaonis in the absence and presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The PR values were analyzed by 1-way ANOVA and Tukey's HSD test at a significance level of P ≤ 0.05. An asterisk indicates a significant difference between the two plant oils.
Fig. 6 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 6. Mean numbers of ants present on DMSO-treated and untreated control filter papers in the absence or presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The mean numbers of ants were compared by paired t-tests at a significance level of P ≤ 0.05. No significant differences between DMSO and untreated control were found.
Fig. 4 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 4. Mean numbers of ants present on treatment and control filter papers in tests with essential oils at a concentration of 1,000 ppm in the absence or presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The mean numbers of ants were compared by paired t-tests at a significance level of P ≤ 0.05. No significant differences between treatment and control were found.
Fig. 5 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 5. Mean numbers of ants present on treatment and control filter papers in tests with essential oils at a concentration of 100 ppm in the absence or presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The mean numbers of ants were compared by paired t-tests at a significance level of P ≤ 0.05. No significant differences between treatment and control were found.
Fig. 3 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 3. Percentage of repellency (PR) of Curcuma longa and Litsea cubeba against Monomorium pharaonis in the absence or presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The PR values were analyzed by 1-way ANOVA and Tukey's HSD test at a significance level of P ≤ 0.05. An asterisk indicates a significant difference between absence and presence of food.
Fig. 2 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 2. Mean numbers of ants present on treatment and control filter papers in tests with essential oils at a concentration of 10,000 ppm in the absence or presence of food at different hours of observation. Values are means of 6 replications, and bars indicate the standard error. The mean numbers of ants were compared by paired t-tests at a significance level of P ≤ 0.05. An asterisk indicates a significant difference between treatment and control.
Fig. 1 in Repellency of two essential oils to Monomorium pharaonis (Hymenoptera: Formicidae)
Fig. 1. Experimental setup of the area choice test, with two filter paper half discs fitted in the bottom of a Petri dish. In the "with food" test, food was placed centrally on each half disc.
Fig. 2 in A new household ant record for Turkish Thrace [Monomorium pharaonis (L.)] (Hymenoptera, Formicidae)
Fig. 2: Monomorium pharaonis (LINNAEUS 1758). Worker: (a) Head (Frontal view), (b) Thorax, petiole, postpetiole (in profile); queen: (c) Head (Frontal view), (d) Thorax, petiole, postpetiole (in profile).
Fig. 1 in A new household ant record for Turkish Thrace [Monomorium pharaonis (L.)] (Hymenoptera, Formicidae)
Fig. 1: Map showing the sampling sites; • represents the ones in Turkish Thrace.
Fig. 2 in New records of the exotic black little ant Monomorium carbonarium in the Iberian Peninsula and discovery of the ergatoid queen (Hymenoptera: Formicidae)
Fig. 2 – Worker of M. carbonarium in lateral view.
Fig. 4 in New records of the exotic black little ant Monomorium carbonarium in the Iberian Peninsula and discovery of the ergatoid queen (Hymenoptera: Formicidae)
Fig. 4 – Ergatoid queen of M. carbonarium.
Identification of a queen pheromone mediating the rearing of adult sexuals in the pharaoh ant Monomorium pharaonis
<p>Division of labour between reproductive queens and mostly sterile workers is among the defining characteristics of social insects. Queen-produced chemical signals advertising her presence and fertility status, i.e. queen pheromones, are normally used to assert the queen's reproductive dominance in the colony. Most queen pheromones identified to date are chemicals that stop the daughter workers from reproducing. Nevertheless, it has long been suggested that queen pheromones could also regulate reproduction in different ways. In some multiple-queen ants with obligately sterile workers, for example – such as fire ants and pharaoh ants – queen pheromones are thought to regulate reproduction by inhibiting the rearing of new sexuals. Here we identify the first such queen pheromone in the pharaoh ant <i>Monomorium pharaonis </i>and demonstrate its mode of action via bioassays with the pure biosynthesized compound. In particular, we show that the monocyclic diterpene neocembrene, which in different <i>Monomorium</i> species is produced solely by fertile, egg-laying queens, strongly inhibits the rearing of new sexuals (queens and males) and also exerts a weakly attractive "queen retinue" effect on the workers. This is the first time that a queen pheromone with such a dual function has been identified in a social insect species with obligately sterile workers.</p>
FIGURE 10 in Systematics of the Monomorium rothsteini Forel species complex (Hymenoptera: Formicidae), a problematic ant group in Australia
FIGURE 10. Males of the M. rothsteini (Forel) species complex in lateral, head and dorsal view of the mesosoma. Fig. 10a–c: M. subapterum male, paralectotype (Harding River, WA), d–f: M. topend male, paratype (Berrimah, NT, KSS21). Scale bars are 1 mm for all views.
FIGURE 9 in Systematics of the Monomorium rothsteini Forel species complex (Hymenoptera: Formicidae), a problematic ant group in Australia
FIGURE 9. Queens and males of the M. rothsteini (Forel) species complex in lateral, head and dorsal view of the mesosoma. Fig. 9a–c: M. bogischi queen (light form), paralectotype (Port Wakefield. SA), d–f: M. bogischi queen (dark form) (Birdsville, QLD, KSS46), g–i: M. humilior queen, paralectotype (Tennant Ck, NT), j–l: M. humilior male (Tennant Creek, NT), m–o: M. subapterum queen, paralectotype (Harding River, WA). Scale bars are 1 mm for all views.
FIGURE 5 in Systematics of the Monomorium rothsteini Forel species complex (Hymenoptera: Formicidae), a problematic ant group in Australia
FIGURE 5. Workers of the M. rothsteini (Forel) species complex in lateral, head and dorsal view of the mesosoma. Fig. 5a–c: M. geminum, paratype (Litchfield NP, NT, ANA10–22), d–f: M. hertogi, holotype (Lakefield NP, QLD, TERC2), g–i: M. hoffmani, holotype (Mt Stanford Station, NT, TERC70), j–l: M. humilior, (Alice Springs, NT, ANA11–13), m–o: M. kidman, holotype (Top Springs, NT, TERC71). Scale bars are 0.5 mm for all views.
FIGURE 4 in Systematics of the Monomorium rothsteini Forel species complex (Hymenoptera: Formicidae), a problematic ant group in Australia
FIGURE 4. Workers of the M. rothsteini (Forel) species complex in lateral, head and dorsal view of the mesosoma. Fig. 4a–c: M. bogischi, (Port Wakefield, SA, KSS241), d–f: M. broschorum holotype (Dajarra, QLD, KSS60), g–i: M. capeyork, holotype (69km N Archer River Roadhouse, QLD, TERC4), j–l: M. eremoides, holotype (9km E 80 mile Beach, WA, KSS89), m–o: M. eremum, holotype (33 km N Barkley Homestead, NT, KSS77). Scale bars are 0.5 mm for all views.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.