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430 results for “Queens”
Fig. 1 in Revision and redefinition of the crematogastrine ant genus Tetheamyrma BOLTON, 1991, with the description of a new species and the first description of the dealate queen (Hymenoptera: Formicidae)
Fig. 1: Portion of phylogenetic tree indicating congeneric relationship of Tetheamyrma subspongia BOLTON, 1991 and "Tetheamyrma_ sp_EX1093" from Mt. Banahaw, Laguna Province, LuZon Island, Philippines (BRANSTETTER & al. 2017, supplementary Fig. S2).
Fig. 4 in Revision and redefinition of the crematogastrine ant genus Tetheamyrma BOLTON, 1991, with the description of a new species and the first description of the dealate queen (Hymenoptera: Formicidae)
Fig. 4: Tetheamyrma subspongia BOLTON, 1991. Holotype worker. (a) Full-face view; (b) lateral view; (c) dorsal view; (d) labels. Images courtesy of AntWeb (unidentified image creator).
Fig. 2 in Revision and redefinition of the crematogastrine ant genus Tetheamyrma BOLTON, 1991, with the description of a new species and the first description of the dealate queen (Hymenoptera: Formicidae)
Fig. 2: Tetheamyrma bidentata sp.n. Paratype worker. (a) Full-face view; (b) lateral view; (c) dorsal view; (d) labels. Images courtesy of M. Pierce and J.T. Longino.
FIGURE 39. P. chiponensis paratype dealate queen, A in Taxonomic revision of the genus Ponera Latreille, 1804 (Hymenoptera: Formicidae) of Taiwan and Japan, with a key to East Asian species
FIGURE 39. P. chiponensis paratype dealate queen, A: body, lateral view, B: body, dorsal view, C: head, full-face view, D: specimen label.
Fig. 2 in Biogeography, cryptic diversity, and queen dimorphism evolution of the Neotropical ant genus Ectatomma Smith, 1958 (Formicidae, Ectatomminae)
Fig. 2 Ultrametric tree of Ectatomma ants obtained from BEAST Bayesian relaxed molecular clock analysis of two mitochondrial genes and one nuclear gene. Ninety-five per cent highest posterior density divergence time estimates are presented as bars. Numbers on the scale at the foot of the figure represent millions of years. Corresponding geological epochs and their subdivisions are represented with differential
Fig. 3 in Biogeography, cryptic diversity, and queen dimorphism evolution of the Neotropical ant genus Ectatomma Smith, 1958 (Formicidae, Ectatomminae)
Fig. 3 Ancestral area reconstruction results from RASP Bayesian analyses of Ectatomma ants based on biogeographic regions of Morrone (2006). Pie chart colours correspond to the posterior probability frequencies for each node. Letters in parenthesis correspond
Fig. 1 in Biogeography, cryptic diversity, and queen dimorphism evolution of the Neotropical ant genus Ectatomma Smith, 1958 (Formicidae, Ectatomminae)
Fig. 1 Ectatomma ant species Bayesian phylogram obtained by Mr. Bayes analyses of two mitochondrial and one nuclear gene sequences. Node support is shown by two numbers, the first one corresponding to Bayesian posterior probabilities and the second one to bootstrap support
FIGURE 8. 1 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 8. 1—Discostella stelligera (Hust.) Houk & Klee, (2–5)—Eunotia soleirolii (Klitz.) Rabenh., (6-8)—Gomphonema hebridense W.Gregory, (9–12)—Gomphonema graciledictum E.Reichardt. Scale bars = 10 μm.
FIGURE 9. 1—Aphanothece conferta P.Richter, 2 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 9. 1—Aphanothece conferta P.Richter, 2—Aph. elabens (Bréb. ex Menegh.) Elenkin, 3—Aphanothece sp., 4—Chroococcus minuta (Kütz.) Hollerb., 5—Mastigocladus sp., 6—Nostoc sp., 7—Phormidium sp., 8—Pseudanabaena sp., 9—Scytonema sp., 10— Stigonema cf. hormoides Bornet & Flahault, 11—Tolypothrix sp., 12—Centritractus belonophorus (Schmidle) Lemmerm. (Xanthophyceae) Scale bars = 10 µm.
FIGURE 7. 1 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 7. 1—Aulacoseira granulata (Ehrenb.) Simonsen, 2—Encyonema silesiacum (Bleisch) D.G.Mann, 3—Eunotia bilunaris (Ehrenb.) Schaarschm., 4—Eunotia sp. 5—Gomphonema lanceolatum Kütz., 6—Pinnularia gibba (Ehrenb.) Ehrenb., 7—Pinnularia sp., 8—Rhopalodia gibba (Ehrenb.) O.F.Müller, 9—Rh. musculus (Kütz.) O.F.Müller. Scale bars = 10 µm.
FIGURE 5. 1 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 5. 1—Ankistrodesmus fusiformis Corda, 2—Dictyosphaerium sphagnale Hindák, 3—Dictyosphaerium sp., 4—Kirchneriella lunaris (Kirchner) K.Möbius, 5—K. obtusa (Korshikov) Komárek, 6—Monoraphidium contortum (Thur.) Komárková-Legnerová, 7—M. griffithii (Berk.) Komárková-Legnerová, 8—M. tortile (West & G.S.West) Komárková-Legnerová. Scale bars = 10 µm.
FIGURE 6. 9 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 6. 9—Oedogonium curvum Pringsh. ex Hirn, 10—O. cf. obtruncatum Wittr. ex Hirn, 11—Oedogonium sp., 12—Pediastrum duplex Meyen, 13—P. tetras (Ehrenb.) Ralfs, 14—Radiococcus sp., 15—Scenedesmus arcuatus (Lemmerm.) Lemmerm., 16—Ulothrix sp., 17—Westella botryoides (West) De Wild., 18—Closterium sp., 19—Cosmarium humile Nordst. ex De Toni, 20—C. norimbergense Reinsch, 21—C. quadratulum (F.Gay) De Toni, 22—Pleurotaenium rectum Delponte, 23—Pl. trabecula Nägeli, 24—Staurastrum tetracerum Ralfs ex Ralfs. Scale bars = 10 µm.
FIGURE 4. 17—Euglena mutabilis F.Schmitz, 18 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 4. 17—Euglena mutabilis F.Schmitz, 18—Euglenaria anabaena (Mainx) Karnkowska & E.W.Linton, 19-Phacus inflexus (Kisselev) Pochm., 20—Ph. longicauda (Ehrenb.) Dujard., 21—Ph. orbicularis fo. communis T.G.Popova, 22—Strombomonas scabra (Playfair) Tell & Conforti, 23—Trachelomonas oblonga Lemmerm., 24—T. pulcherrima Playfair. Scale bars = 10 µm.
FIGURE 3. 1—Anisonema pusillum A.C.Stokes, 2—Astasia comma E.G.Pringsh., 3—Distigma steinii E.G.Pringsh., 4 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 3. 1—Anisonema pusillum A.C.Stokes, 2—Astasia comma E.G.Pringsh., 3—Distigma steinii E.G.Pringsh., 4—Entosiphon sulcatus (Dujard.) F.Stein, 5—Gyropaigne ukrainica Asauł, 6—Peranema deflexum Skuja, 7—P. sacculus Christen, 8—Peranema sp., 9—Petalomonas angusta (G.A.Klebs) Lemmerm., 10—Rhabdomonas costata (Korshikov) E.G.Pringsh., 11—Rh. incurva Fresen., 12— Phacus hyalina Skvortsov. Scale bars = 10 µm.
FIGURE 2. 2 in Algae of bromeliad phytotelmata in the Queen Sirikit Botanical Garden, Chiang Mai, Thailand
FIGURE 2. 2—Neoregelia spectabilis (T.Moore) L.B.Sm., 3—Neoregelia compacta (Mez) L.B.Sm., 4—Neoregelia 'Dr. Oeser' (variegated), 5&6—Neoregelia 'Fireball', 7—Neoregelia 'Super Fireball', 8—Neoregelia 'Eleanor', 9—Neoregelia 'Clarise', 10— Aechmea fasciata Baker, 11—Neoregelia sp., 12—Neoregelia sp., 13—Neoregelia sp., 14—Neoregelia sp., 15—Neoregelia sp., 1 2 3 4 5 16—Neoregelia sp. .
Queen-worker conflict can drive the evolution of social polymorphism and split sex ratios in facultatively eusocial life-cycles
<p>Hamilton's idea that haplodiploidy favors the evolution of altruism – the haplodiploidy hypothesis -- relies on the relatedness asymmetry between the sexes, caused by the sex-specific ploidies. Theoretical work on the consequences of relatedness asymmetries has significantly improved our understanding of sex-allocation and intra-colony conflicts, but the importance of haplodiploidy for the evolution of altruism came to be seen as minor. However, recently it was shown that haplodiploidy can strongly favor the evolution of eusociality, provided additional "preadaptations" are also present, such as the production of multiple broods per season and maternal ability to bias offspring sex ratios. These results were obtained assuming no influence of workers on the sex ratio, even though worker control of the sex ratio is known to occur. Here we model the evolution of sex-specific fratricide as a mechanism of worker control over the sex ratio. We show that fratricide can facilitate the initial evolution of helping. However, fratricide can also hamper the evolution of unconditional help. Instead, social polymorphism evolves, a mixture of helping and dispersing offspring. Finally, we show that the co-evolution of sex-allocation strategies of workers (fratricide) and queens leads to a split production of the sexes, with some colonies specializing in males and others in females. Thus, the model predicts that fratricide spawns a diversity of co-existing life cycles that strongly vary in degree of sociality and sex ratios.</p>
2D Macro-XRF to reveal redacted sections of French queen Marie-Antoinette secret correspondence with Swedish count Axel von Fersen
<p>During the French Revolution, Marie-Antoinette, queen of France and wife of Louis the XVIth, maintained a highly secret correspondence with the Swedish count Axel von Fersen, her close friend and rumored lover. An unidentified censor later redacted certain sections of the exchanged letters. This presumably sensitive content has been puzzling historians for almost 150 years. We report on the methodology that successfully unraveled this historical mystery. X-ray fluorescence spectroscopy was used in macro scanning mode on the redacted sections. Specific data processing was applied to improve the legibility of the hidden writings (elemental ratios, statistical data reduction, multimodal images fusion, unmixing procedure; image treatments). This methodology successfully revealed the redacted contents of 8 letters, shedding new lights on Marie-Antoinette and Fersen relationship but also on the author of the redactions. It will also be of great interest for other historical and forensic cases involving the disentanglement of superimposed multi-elemental materials.</p>
Relatedness modulates reproductive competition among queens in ant societies with multiple queens
<p>Reproductive sharing in animal groups with multiple breeders, insects and vertebrates alike, contains elements of both conflict and cooperation, and depends on both relatedness between co-breeders, as well as their internal and external conditions. We studied how queens of the ant Formica fusca adjust their reproductive efforts in response to experimental manipulations of the kin competition regime in their nest, as well as their own reproductive status. Queens respond to the presence of competitors by increasing their egg laying efforts, but only if the competitors are highly fecund and distantly related. Furthermore, queens only engage in cannibalism of eggs when the risk of erroneously destroying own offspring is absent. We demonstrate that queens of Formica fusca fine-tune their behaviours in response to kinship and fecundity of others as well as their own physiological state in a manner that is unusually precise for any cooperative breeder.</p>
Germline stem progenitors and oocyte production in the Honeybee Queen Ovary
<p>Raw figures for the paper “Germline stem progenitors and oocyte production in the Honeybee Queen Ovary”.</p> <p> Georgia Cullen, Joshua B. Gilligan, Joseph G. Guhlin and Peter K. Dearden.</p>
Fore wings of queens and drones of honey bees (Apis mellifera)
<p>The dataset consists of fore wing images of queens and drones of honey bees (<i>Apis mellifera</i>). In most cases, there are both left and right wings indicated with the letters L and R, respectively, at the end of the file name. The resolution of the images is 94488 pixels per meter. The wing images are compressed into zip files. The file queens-wing-images.zip contains 4117 wing images of queens, which represent 2086 individuals. The file drones-wing-images.zip contains 8006 wing images of drones, which represent 4102 individuals. Raw coordinates of 19 landmarks marked on the wings of queens and drones are in files queens-raw-coordinates.csv and drones-raw-coordinates.csv, respectively. For a subset of queens, there is also available data about wing length and body weight in the files queens-wing-length.csv and queens-weight.csv, respectively.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.