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430 results for “Queens”
Fig. 6 in Taxonomic notes on Ponera guangxiensis Zhou, 2001 (Hymenoptera: Formicidae: Ponerinae), with a new distribution record from Vietnam and the first description of queen, male, and larva
Fig. 6. Ponera guangxiensis, alate queen. (A) Front wing. (B) Hind wing.
Supporting data for: Limited genetic differentiation of Mycetomoellerius mikromelanos in Parc National Soberanía, Panama: Implications for queen dispersal
<p>The coevolutionary relationship between fungus-growing ants (Formicidae: Attini: Attina) and their symbionts has been well-studied in the Panamanian rainforests. To further understand the ecological context of these evolutionary relationships, we have examined the population genetic structure of the fungus-growing ant species<em> Mycetomoellerius</em> <em>mikromelanos</em> Cardenas, Schultz, & Adams 2021, in the Panama Canal Zone. We specifically investigated the presence of population structure, the significance of geographic features (i.e., creeks) limiting gene flow, and relatedness between ant colonies. To accomplish this, we genotyped 85 ant colonies from nine creeks across an approximately 30 km transect in Parque National Soberanía, Panama using double digest restriction-site associated DNA sequencing. We did not find distinct population structures using two genetic clustering methods; however, we did detect an effect of isolation by distance. Furthermore, related colonies were frequently detected on the same creek or neighboring creeks, and some at further geographic distances. Collectively, these findings demonstrate that new colonies tend to establish on natal creeks and occasionally on distant creeks following long-distance dispersal events. We discuss how population genetic patterns reveal the natural history of <em>M</em>. <em>mikromelanos</em> in Parque National Soberanía and how these results fit into the context of fungus-growing ant mutualisms.</p>
Queens control caste allocation in the ant Cardiocondyla obscurior
<p>Social insect queens and workers can engage in conflict over reproductive allocation when they have different fitness optima. Here, we show that queens have control over queen-worker caste allocation in the ant <em>Cardiocondyla</em> <em>obscurior</em>, a species in which workers lack reproductive organs. We describe crystalline deposits that distinguish castes from the egg stage onwards, providing the first report of a discrete trait that can be used to identify ant caste throughout pre-imaginal development. Comparison of queen- and worker-destined eggs and larvae revealed size and weight differences in late development, but no discernible differences in traits that may be used in social interactions, including hair morphology and cuticular odors. In line with a lack of caste-specific traits, adult workers treated developing queens and workers indiscriminately. Together with previous studies demonstrating queen control over sex allocation, these results show that queens control reproductive allocation in <em>C. obscurior</em> and suggest that the fitness interests of colony members are aligned to optimise resource allocation in this ant.</p>
qechairquality: Air Quality Data at Queen Elizabeth Central Hospital (QECH), Blantyre, Malawi.
<p>Air quality data with measurements in 5-minute intervals for particulate matter (PM 2.5 & PM 10) at eight sensor locations over two months at Queen Elizabeth Central Hospital (QECH) in Blantyre, Malawi.</p>
Fig. 2. Tritogenia howickiana Kinberg, 1867 in The megadrile fauna (Annelida: Oligochaeta) of Queen Elizabeth Park, South Africa: species composition and distribution within different vegetation types
Fig. 2. Tritogenia howickiana Kinberg, 1867, the whole body of the lectotype. Scale bar = 5 mm.
Fig. 5 in The megadrile fauna (Annelida: Oligochaeta) of Queen Elizabeth Park, South Africa: species composition and distribution within different vegetation types
Fig. 5. Tritogenia howickiana, position of the spermathecae (Sp) in segments 12 and 13.
Fig. 1. A in The megadrile fauna (Annelida: Oligochaeta) of Queen Elizabeth Park, South Africa: species composition and distribution within different vegetation types
Fig. 1. A map of Queen Elizabeth Park, showing the different vegetation types.
Formica fusca: Queen fecundity, worker entourage, and cuticular chemistry in the ant Formica fusca
<p><span>Cooperative breeding entails conflicts over reproductive shares that may be settled in different ways. In ants, where several queens simultaneously reproduce in a colony, both queens and workers may influence the reproductive apportionment and offspring quality. Queens may vary in their intrinsic fecundity, which may influence the size of the worker entourage attending individual queens, and this may eventually dictate the reproductive output of a queen. We tested whether the reproductive success of queens is affected by the size of their worker entourage, their fecundity at the onset of the reproductive season, and whether the queen cuticular hydrocarbon profile carries information on fecundity. We show that in the ant <em>Formica fusca</em> both queen fecundity and egg hatching success increase with the size of their entourage, and that initially highly fecund queens lay larger eggs. Furthermore, higher relatedness among workers increased queen fecundity. Finally, the queens that received a large worker entourage differed in the cuticular chemistry from those that received a small worker entourage. Our results thus show that workers play a pivotal role in determining queen fitness that high intracolony relatedness among workers enhances the overall reproductive output in the colony, and that queen fecundity is reflected in their cuticular hydrocarbon profile.</span></p>
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.
Supporting data for: Limited genetic differentiation of Mycetomoellerius mikromelanos in Parc National Soberanía, Panama: Implications for queen dispersal
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Examining the effects of multistage pesticide exposure on bumblebee queen survival and reproduction
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Unveiling the submerged secrets: bumblebee queens' resilience to flooding
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Data from: Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants
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Early queen infection shapes developmental dynamics and induces long-term disease protection in incipient ant colonies
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A novel method for using RNA-seq data to identify imprinted genes in social Hymenoptera with multiply mated queens
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Colony fitness increases in the honey bee at queen mating frequencies higher than genetic diversity asymptote
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Formica fusca: Queen fecundity, worker entourage, and cuticular chemistry in the ant Formica fusca
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Queen execution in a monogynous ant
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Data from: Worker survival and egg production– but not transcriptional activity– respond to queen number in the highly polygynous, invasive ant Tapinoma magnum
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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.