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170 results for “ant nests”
Fig. 6. A–F in Larval juice anyone? The unusual behaviour and morphology of an ant nest beetle larva (Coleoptera: Carabidae: Paussini) from Thailand
Fig. 6. A–F, Paussus siamensis Maruyama, 2016, third instar larva, abdominal terminal disk imaged by SEM. A, terminal disk, apical view; B, margin of left dorsal plate; C, sensilla S–II on margin of left dorsal plate; D, sensilla S–I on apex of left dorsal plate; E, sensilla S–I on medial part of left dorsal plate; F, lateral close-up of a sensillum S–I showing the multilobed crown of radial spines and spinulate surface of the plate. Scale bars = 500 μm [A]; 200 μm [B, E]; 50 μm [C, D]; 10 μm [F].
Fig. 5. A–F in Larval juice anyone? The unusual behaviour and morphology of an ant nest beetle larva (Coleoptera: Carabidae: Paussini) from Thailand
Fig. 5. A–F, Paussus siamensis Maruyama, 2016, third instar larva, details of thorax and abdomen imaged by SEM. A, left legs, ventrolateral view; B, apex of left prothoracic leg, anteroventral view; C, left lateral side of metanotum, showing different types of microsculpture, elongate and spiniform in membranous areas and smooth or slightly corrugated in more sclerotised areas; D, mesothoracic sternum; E, left abdominal spiracle II; F, setipherous socket on abdominal tergal side, showing a remnant of tergite III. Scale bars = 500 μm [A]; 100 μm [B, D]; 50 μm [C]; 40 μm [E]; 10 μm [F].
Fig. 4. A–G in Larval juice anyone? The unusual behaviour and morphology of an ant nest beetle larva (Coleoptera: Carabidae: Paussini) from Thailand
Fig. 4. A–G, Paussus siamensis Maruyama, 2016, third instar larva, details of head capsule imaged by SEM. A, left mandible, dorsal view; B, maxillae, prementum and left mandible, ventral view; C, left antenna, left lateral view; D, right mandible, mesodorsal view; E, right mandible ental surface; F, maxillary palp and galea of right maxilla, dorsal view; G, labial palps, dorsal view. Scale bars = 200 μm [A, B]; 100 μm [C, D, E]; 50 μm [F, G].
Fig. 3. A–E in Larval juice anyone? The unusual behaviour and morphology of an ant nest beetle larva (Coleoptera: Carabidae: Paussini) from Thailand
Fig. 3. A–E, Paussus siamensis Maruyama, 2016, third instar larva. A, head, dorsal view; B, head, right lateral view; C, head, ventral view; D, terminal disk, apical view; E, terminal disk, right lateral view. Scale bars = 500 μm.
Fig. 1. A–D in Larval juice anyone? The unusual behaviour and morphology of an ant nest beetle larva (Coleoptera: Carabidae: Paussini) from Thailand
Fig. 1. A–D, Paussus siamensis Maruyama, 2016. A, environment where the third instar larva was found, together with 9 adults, inside a Pheidole plagiaria nest built inside an abandoned termite mound (Macrotermes sp.); B, adult, dorsal view; C, third instar larva, right lateral view; D, third instar larva interacting with a worker of Pheidole plagiaria (note the drops of clear liquid sucked by the host ant).
Fig. 8 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 8 – Daily temperature changes at characteristic points of the system for thick stone (A, open space; B, penumbra; C, shadow); Same, for thin stone: D, open space; E, penumbra; F, shadow
Fig. 9 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 9 – Temperature distribution along the height of a thick stone and in the soil under the stone (A, open space; B, penumbra; C, shadow) and for a thin stone (D, open space; E, penumbra; F, shadow).
Fig. 6 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 6 – Number of workers, larvae and pupae found under stones (A-C, cold; D-F, warm; G-I, hot) during April – August 2021. A, D, G: workers; B, E, H: larvae; C, F, I: pupae.
Fig. 5 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 5 – Number of workers, larvae and pupae found under stones in the nests of three ant species (A-C, Myrmica rubra; D-F, Lasius niger; G-I, Formica cinerea) during April - August 2021. A, D, G: workers; B, E, H: larvae; C, F, I: pupae. 1-4 indicates the number of week in each month.
Fig. 4 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 4 – Linear dimensions of stones with Myrmica rubra (M_r), Lasius niger (L_n), Formica cinerea (F_c) nests. D1 and D2 are diameter 1 and 2; H is height. All measures are in cm.
Fig. 1 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 1 – Place of research at the confluence of the rivers Desna and Lyubich (Litky village, Kyiv region, Ukraine); 1, location of stone 2; 2, location of stones 1, 3-12, 19-20; 3, location of stones 13-18.
Fig. 10 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 10 – Two-dimensional temperature field of the "thick stone-soil" system for open space: A, time 10-00; B, time 14-00: Temperature scale in °C. The heights of rectangles are: the height above the sole (for the part above the dashed line) and the depth below the soil (for the part below the dashed line).
Fig. 7 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 7 – Relationship between the number of ants and their brood and the linear dimensions of the stone (average diameter, cm). A, workers in mid- June (R2 = 0.46788, p = 0.00088136); B, workers at the end of July (R2 = 0.27579, p = 0.017422); C, larvae at the end of May (R2 = 0.25457, p = 0.023286); D, pupae in mid-June (R2 = 0.16688, p = 0.073735).
Figure 4 in Size of nest complexes, the size of anthills, and infrastructure development in 4 species wood ants (Formica rufa, F. polyctena, F. aquilonia, F. lugubris) (Hymenoptera;
Figure 4. Average diameter (4A, 4B) and height (4C, 4D) of F. rufa and F. polyctena anthills depending on the status: single, 2-5 anthills, 6- 10 anthills, 11-20 anthills, 21-50 anthills, 51-100 anthills in the nest complex (colony). Kyiv andregion, Ukraine.
Figure 7 in Size of nest complexes, the size of anthills, and infrastructure development in 4 species wood ants (Formica rufa, F. polyctena, F. aquilonia, F. lugubris) (Hymenoptera;
Figure 7. Estimates of pair correlation function g(r) plotted against distance r for anthills of F. rufa (7A) and F.polyctena (7B).
Figure 6 in Size of nest complexes, the size of anthills, and infrastructure development in 4 species wood ants (Formica rufa, F. polyctena, F. aquilonia, F. lugubris) (Hymenoptera;
Figure 6. Average number of trails depending on the size class of the anthill F. rufa taking into account the diameter (6A) and height (6B), F. polyctena - also taking into account the diameter (6C) and height (6D), Kyiv and region, Ukraine.
Nest choice in arboreal ants is an emergent consequence of network creation under spatial constraints
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Data from: Does the history of option quality affect nest site choice in the acorn ant?
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Data from: Influences of species interactions with aggressive ants and habitat filtering on nest colonization and community composition of arboreal twig-nesting ants
Ant community assembly is driven by many factors including species interactions (e.g. competition, predation, parasitism), habitat filtering (e.g. vegetation differences, food and nesting resources), and dispersal. Canopy ant communities, including dominant and twig-nesting ants, are structured by all these different factors, but we know less about the impacts of species interactions and habitat filters acting at the colonization or recruitment stage. We examined occupation of artificial twig nests placed in shade trees in coffee agroecosystems. We asked whether species interactions -- aggression from the dominant canopy ant, Azteca sericeasur (Hymenoptera: Formicidae) -- or habitat filtering -- species of tree where nests were placed, tree size, or surrounding vegetation -- influence colonization, species richness, and community composition of twig-nesting ants. We found 20 species of ants occupying artificial nests. Nest occupation was lower on trees with A. sericeasur, but did not differ depending on tree species or surrounding vegetation. Yet, there were species-specific differences in occupation depending on A. sericeasur presence and tree species. Ant species richness did not vary with A. sericeasur presence or tree species. Community composition varied with A. sericeasur presence, tree height, and surrounding vegetation. Our results suggest that species interactions with dominant ants are important determinants of colonization and community composition of twig-nesting ants. Habitat filtering by tree species did not affect twig-nesting ants, but changes in tree size or coffee management may contribute to differences in community composition with important implications for ant conservation in agricultural landscapes, as well as biological control of coffee pests.
Disentangling the assembly mechanisms of ant cuticular bacterial communities of two Amazonian ant species sharing a common arboreal nest
<p>Bacteria living on the cuticle of ants are generally studied for their protective role against pathogens, especially in the clade of fungus-growing ants. However, little is known of the diversity of cuticular bacteria in other ant host species, as well as of the mechanisms leading to the composition of these communities. Here, we used 16S rRNA gene amplicon sequencing to study the influence of host species, species interactions, and the pool of bacteria from the environment on the assembly of cuticular bacterial communities on two phylogenetically distant Amazonian ant species that frequently nest together inside the roots system of epiphytic plant<i>s</i>, <i>Camponotus femoratus</i> and <i>Crematogaster levior</i>. Our results show that 1) the vast majority of the bacterial community on the cuticle is shared with the nest, suggesting that most bacteria on the cuticle are acquired through environmental acquisition, 2) 5.2% and 2.0% OTUs are respectively specific to <i>Camponotus femoratus</i> and <i>Crematogaster levior</i>, likely representing their respective core cuticular bacterial community, and 3) 3.6% of OTUs are shared between the two ant species. Additionally, mass spectrometry metabolomics analysis of metabolites on the cuticle of ants, which excludes the detection of cuticular hydrocarbons produced by the host, were conducted to evaluate correlations among bacterial OTUs and m/z ion mass. Although some positive and negative correlations are found, the cuticular chemical composition was weakly species specific which supports that cuticular bacterial communities are prominently environmentally acquired. Overall, our results suggest that the environment is the dominant source of bacteria found on the cuticle of ants.</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.