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88 results for “Cataglyphis”
Fig 2, 3 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Fig. 2, 3. Lateral view of Cataglyphis spp. with raised gaster in locomotion. 2: C. albicans with the gaster raised to almost a right angle to the longitudinal axis of the alitrunk; 3: C. nodus with the gaster never at more than an acute angle to the longitudinal axis of the alitrunk.</p>
Fig 63-77 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Figs 63-77. Lateral view of the right sagitta: 63: C. cursor, 64: C. emeryi; 65: C. altisquamis; 66: C. bombycinus; 67: C. emmae; 68: C.urens; 79: C. nigripes; 70: C.diehlii; 71: C. bicolor group sp. (dark form from Touggourt, Tunisia); 72: C. niger, 73: C. nodus; 74: C. setipes; 75: C. viaticoides; 76: C. ibericus; 77: C.fortis.</p>
Figs 4-12 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Fig. 4-12. 4: Mandible of a small worker of C. bombycinus; 5: falcate mandible of a large worker of C. bombycinus', 6: mandible of a worker of C. nodus A = apical tooth, B = basal tooth, P = postbasal tooth; 7: lateral view of the petiole of a worker of C. aenescens; 8: same of C. ruber, 9: same of C. nodus; 10: same of C. altisquamis; 11: lateral view of the alitrunk of C. nodus, AL = alitrunk length, MH = metanotum height; PH = propodeum height; 12: same of C. urens.</p>
Fig 28-42 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Figs 28-42. Caudal view of the right stipes and squamula. 28. C. cursor, 29: C. emeryi; 30: C. altisquamis; 31: C. bombycinus; 32: C. emmae; 33: C. urens; 34: C. nigripes; 35: C. diehlii; 36: C. bicolor group sp. (dark form from Touggourt, Tunisia); 37: C. niger; 38: C. nodus; 39: C. setipes; 40: C. viaticoides; 41: C. ibericus; 42: C.fortis.</p>
Fig 13-27 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Fig. 13-27. Dorsal view of the subgenital plate. The apical or caudal part is sclerotized (shaded in fig. 13). 13. C. cursor, 14: C. emeryi; 15: C. altisquamis\ 16: C. bombycinus; 17: C. emmae; 18: C.urens; 19: C.nigripes; 20: C.diehlii; 21: C. bicolor group sp. (dark from from Touggourt, Tunisia); 22: C.niger; 23: C. nodus; 24: C.setipes; 25: C.viaticoides; 26: C.fortis; 27: C. ibericus.</p>
Fig 1 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Fig. 1. Cladogram of the species groups of Cataglyphis. 0-9: Autapomorphies, 10-16 Synapomorphies (Plesiomorphic states in brackets). 0: Median lobe between stipes and volsella (not present); 1: stipes with a mediobasal lobe (not present); 2: cuspis with an apical extension (acute); 3: cuspis with a medioventral extension (straight); 4: lateral lobes of subgenital plate traiangular, acute (bilobed with a median part); 5: subgenital plate distally completely emarginate (bilobed with a median part); 6: subgenital plate with diverging lateral lobes (parallel); 7: subgenital plate with a deeply emarginate median part (median part simple); 8: trilobed subgenital plate (bilobed), squamula and stipes confluent; 9: sagitta with a blunt dorsal process (acute); sagitta without a serrated ventral face (serrated); 10: stipes with a confluent median appendage (no appendage present); 11: sagitta with serrated face laterally (ventrally); 12: sagitta anteriorly (ventrally) rectangular (depressed); 13: subgenital plate long, SPI > 125 (short SPI < 125); 14: squamula and stipes confluent (overlapping), volsella straight (cuspis bent); subgenital plate anteriorly trilobed (bilobed); 15: sagitta elongated (Figs 68-77), stipes with a mediobasal appendage, separated by a carina (no appendage present); 16: laterally, stipes separated from squamula by a membraneous part (stipes and squamula confluent), squamula overlapping stipes caudally (confluent).</p>
Fig 43-62 in Review and reclassification of Cataglyphis (Hymenoptera, Formicidae)
<p>Figs 43-62. 43-47: Lateral view of the stipes: 43: C. diehlii; 44: C. bicolor complex sp.; 45: C. niger; 46: C. nodus; 47: C. setipes. 48-62: median view of the right volsella: 48: C. cursor; 49: C.emeryi; 50: C. altisquamis; 51: C. combycinus; 52: C. emmae; 53: C. urens; 54: C. nigripes; 55: C. diehlii; 56: C. bicolor group sp. (dark form from Touggourt, Tunisia); 57: C. niger; 58: C. nodus; 59: C. setipes; 60: C. viaticoides; 61: C. ibericus; 62: C.fortis.</p>
Fig. 14. Cataglyphis urens Collingwood, 1985 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. 14. Cataglyphis urens Collingwood, 1985, syntype, worker (CASENT0922340, AntWeb.org (Michele Esposito)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 10. Cataglyphis arenaria Finzi, 1940 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. 10. Cataglyphis arenaria Finzi, 1940, worker (CASENT0263825, AntWeb.org (Will Ericson)). A. Body in profile. B. Head in full-face view. C. Distribution map.
Fig. 2 in A new inquiline ant (Hymenoptera: Formicidae) in Cataglyphis and its phylogenetic relationship
Fig. 2. Phylogenetic relationships of Cataglyphis hannae n. sp. Two most parsimonious trees shown with a consistency index (ci) of 98 and a retention index (ri) of 96. The synapomorphies for the sistergroup hannae + viaticus are small body size (characters 3 (1) in Table 1), and long antennal scape (4 (1)); for the sistergroup viaticus + (hannae + abyssinicus) the synapomorphies are bright red colour of head and alitrunk (7 (1)) and shape of median appendage of the male subgenital plate (9 (0)).
Fig. 1 in A new inquiline ant (Hymenoptera: Formicidae) in Cataglyphis and its phylogenetic relationship
Fig. 1. Lateral view of the females of C. bicolor (A) and its inquiline C. hannae n.sp. (B). Hairs are only drawn on the occiput.
Figure 3 in A behavioral analysis of achromatic cue perception by the ant Cataglyphis aenescens (Hymenoptera; Formicidae)
Figure 3. Angular distributions and tracks of foragers on the orientation platform during intensity threshold experiments with 370 nm (a, b) and 440 nm (c, d). Only the results of the control tests and the last critical tests with which the ants' homeward orientations were lost were given for each stimulus. a) 370 nm control test, I = 1.1 × 1011 photons, P <0.0005; b) last critical test, I = 0.44 × 1010 photons, P> 0.05, not significant (n.s.); c) 440 nm control test, I = 1.1 × 1011 photons, P <0.01; d) last critical test, I = 1.1 × 1010 photons, P> 0.05, n.s. The triangle above each circle indicates the home angle. The dots around the circumference show the actual distribution of angles of foragers. Sample size = 30; h.a. = home angle; a = mean vector angle; r = mean vector length; u = critical values of the V test; d = deviation values around the 95% confidence interval. The dashed lines denote the 95% confidence interval around each sample mean.
Linked collectors and determiners for: A new inquiline ant (Hymenoptera: Formicidae) in Cataglyphis and its phylogenetic relationship.
Natural history specimen data linked to collectors and determiners held within, "A new inquiline ant (Hymenoptera: Formicidae) in Cataglyphis and its phylogenetic relationship". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/54b2150d-e662-450d-b3c2-73b51ac32041">https://bionomia.net/dataset/54b2150d-e662-450d-b3c2-73b51ac32041</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/54b2150d-e662-450d-b3c2-73b51ac32041">https://gbif.org/dataset/54b2150d-e662-450d-b3c2-73b51ac32041</a>. Formatted as a Frictionless Data package.
Microsatellite data of the paper "A putatively new ant species from the Cataglyphis cursor group displays low levels of polyandry with standard sexual reproduction"
<p>Fifty colonies of the ant Cataglyphis cursor were sampled at their nest entrance in two localities separated by 79km in the plain of Avila, west of Madrid, in July 2015 for Salobralejo (27 colonies) and in April 2014 for Castrillo de Guareña (23 colonies). Only workers near the nest entrance were collected. In Salobralejo, we also collected nine gynes at the nest entrance in three colonies. After collection, the individuals were preserved in 95% Ethanol (with 5% Tris-EDTA). From the 50 colonies sampled, we genotyped a single worker per colony for 37 colonies (Table S1). For the other 13 colonies, 114 workers were collected and genotyped to assess the colony genetic structure (86 workers from nine colonies in Salobralejo and 28 workers from four colonies in Castrillo). We also genotyped the nine gynes found in three colonies in Salobralejo. A total of 160 individuals were screened for thirteen microsatellite loci used by Eyer et al. (2023) and two supplementary loci (L76 and L3653) were amplified. The L26 locus was excluded because of amplification failures in nine individuals (18% of samples) and a highly significant Hardy-Weinberg disequilibrium (<em>P</em> < 00001 for both sites). </p> <p>The file contain the locality (Salobralejo or Castrillo), the colony number and individual identification number (code), the caste (worker or gyne). For each locus, the two alleles are provided and characterised by their size. </p>
Ecological diversification preceded geographical expansion during the evolutionary radiation of Cataglyphis desert ants
<p>Biological diversity often arises as organisms adapt to new ecological conditions (i.e. ecological opportunities) or colonise suitable areas (i.e. spatial opportunities). Cases of geographical expansion followed by local ecological divergence are well described; they result in clades comprising ecologically heterogeneous subclades. In contrast, nothing is known about evolutionary radiation events in which ecological opportunities preceded spatial spread. Here, we show that the desert ant genus <em>Cataglyphis</em> likely originated in open grassland habitats in the Middle East ~18 million years ago and became a taxon of diverse species specialising in prey of different masses. Around 9 million years ago, southern Europe and northern Africa experienced aridification and were colonised by <em>Cataglyphis</em>, which was preadapted to the harsh environmental conditions. The result was the rapid accumulation of species, and the appearance of local assemblages containing species from different lineages that still displayed ancestral foraging specialties. These findings highlight that, in <em>Cataglyphis</em>, ecological diversification happened before the genus geographically spread into newly arisen suitable habitats, resulting in a clade composed of ecologically homogeneous subclades.</p>
Figs. 1 & 2 in Cataglyphis viatica (Fabricius, 1787) (Hymenoptera: Formicidae), host ant for Thorictus buigasi Escalera, 1923 (Coleoptera: Dermestidae: Thorictinae) from Morocco.
Figs. 1 & 2.- Thorictus buigasi on the head of Cataglyphis viatica. (photos Fernando Amor)
Mapa 1 in Cataglyphis iberica (Emery, 1906) (Hymenoptera, Formicidae): novas citas para Galicia (NO Iberia)
Mapa 1.- Citas de Cataglyphis iberica na Península Ibérica.
Thoracic endoskeleton and posterior leg muscles in queen of ant Cataglyphis savignyi
<p>The external trochanter muscles (orange) of mid- and hindlegs originate on fused meso- and metafurcae (blue) in <em>Cataglyphis savignyi</em> queens. Depressor muscles of the petiole (light blue) originate on base of T3 furca.<br> </p> <p><strong>Micro-CT </strong>scans were performed at the Okinawa Institute of Science and Technology Graduate University, Japan<strong>.</strong></p> <p><strong>Segmentation </strong>of the reconstructed image stacks was performed with ITK-SNAP 3.6.0. Structures were segmented manually.</p>
Ecological diversification preceded geographical expansion during the evolutionary radiation of Cataglyphis desert ants
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Data from: Facultative use of thelytokous parthenogenesis for queen production in the polyandrous ant Cataglyphis cursor
The evolutionary paradox of sex remains one of the major debates in evolutionary biology. The study of species capable of both sexual and asexual reproduction can elucidate factors important in the evolution of sex. One such species is the ant Cataglyphis cursor, where the queen maximises the transmission of her genes by producing new queens (gynes) asexually while simultaneously maintaining a genetically diverse workforce via the sexual production of workers. We show that the queen can also produce gynes sexually, and may do so to offset the costs of asexual reproduction. We genotyped 235 gynes from 18 colonies, and found that half were sexually produced. A few colonies contained both sexually and asexually produced gynes. While workers in this species can also use thelytoky, we found no evidence of worker production of gynes based on genotypes of 471 workers from the six colonies producing sexual gynes. Gynes are thus mainly, and potentially exclusively, produced by the queen. Simulations of gynes inbreeding level following one to ten generations of automictic thelytoky suggest that the queen switches between or combines thelytoky and sex, which may reduce the costs of inbreeding. This is supported by the relatively small size of inbred gynes in one colony, though we found no relationship between the level of inbreeding and immune parameters. Such facultative use of sex and thelytoky by individual queens contrasts with other known forms of parthenogenesis in ants, which are typically characterised by distinct lineages specialising in one strategy or the other.
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