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113 results for “Ant ecology”
Figure 3 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 3. Chromatic ratios calculated from pictures of the Colobopsis CSL and DQL patterns and from pictures of the two putative model species Cr. scutellaris and D. quadripunctatus (N = 2 0 for each species or chromatic form). Boxplots show mean and standard deviation, while whiskers represent minimum and maximum values. Dots correspond to measured individuals. Their dispersal on the X-axis is a randomized graphic effect to avoid overlaps.
Figure 2 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 2. Type material of the described West-Palaearctic Colobopsis, all showing to the 'D. quadripunctatus-like' pattern. A, holotype queen of Colobopsis truncata from Liguria, Italy, preserved at the Turin Natural History Museum (Italy). B, syntype worker of Colobopsis fuscipes from Austria (picture from AntWeb.org, FOCOL2496; photographer: Christiana Klingenberg), preserved at the Museum für Naturkunde der Humboldt-Universität Berlin (Berlin, Germany). Note that the queen's red colour in the anterior heavily sculptured part of the phragmotic head is not relevant to evaluating its chromatic pattern. Scale bars: 0.5 mm.
Figure 11. Colobopsis imitans. A, B, E, F in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 11. Colobopsis imitans. A, B, E, F, queen; C, D, G, male. Specimens from the type locality. Scale bars: 0.5 mm. Pictures also available on AntWeb.org database, specimen codes: ANTWEB1041483 and ANTWEB1041484.
Figure 8 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 8. Trail-following behaviour on Crematogaster scutellaris trails by other ants (indicated with arrows). On the left (A, C, E) CSL Colobopsis; on the right (B, D, F) Camponotus lateralis observed in the same locality performing the same behaviour (photos taken in Palermo (Sicily) during field surveys).
Figure 12 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 12. Male genitalia of Colobopsis imitans in ventral and dorsal view, specimen from the type locality. Scale bars = 0.25 mm.
Figure 1 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 1. The model species and the two detected chromatic model patterns of Colobopsis: A, Crematogaster scutellaris; B, CSL Colobopsis from Sicily; C, Dolichoderus quadripunctatus from Tuscany; D, DQL Colobopsis from Tuscany.
Figure 7. Interactions between tarantulas and ants. A in An extensive review of mutualistic and similar ecological associations involving tarantulas (Araneae: Theraphosidae), with a new hypothesis on the evolution of their hirsuteness
Figure 7. Interactions between tarantulas and ants. A. Avicularia purpurea (marked with an arrow) in its arboreal retreat, living with a colony of an unidentified species of Camponotus, Tena, Napo, Ecuador. B. Tapinauchenius cupreus living with Camponotus femoratus in a tree cavity, Río Momón, Loreto, Peru. C. Stichoplastoris cf. obelix, spiderlings, and Labidus coecus ants not being interested in the spiders, Reserva Biológica Tirimbina, Heredia Province, Costa Rica. D. Same, spiderlings gathered at the maternal burrow entrance, with ants moving close to the entrance. E. Avicularia hirschii displaying an escape strategy against Labidus ants, Madre de Dios, Peru. F. Tapinauchenius plumipes caught, killed and carved up by the army ants Eciton burchellii, Montsinéry-Tonnegrande Commune, French Guiana. D reproduced from Lapinski (2019). Photo credits: Rick C. West (A, B, F), Witold Lapinski (C, D), and Emanuele Biggi (E).
Figure 3 in Ecology and behaviour of the weaver ant Camponotus (Myrmobrachys) senex
Figure 3. Activity rhythm of Camponotus senex, between 08.00 h and 18.00 h, in a nest maintained in the Experimental Garden, Uberlândia, MG (n = 4 observations).
Figure 1 in Ecology and behaviour of the weaver ant Camponotus (Myrmobrachys) senex
Figure 1. Nest of weaver ant Camponotus senex in a Brazilian savanna. (A) External aspect of the nest: (1) one of the entrances of the nest, (2) leaf adhered to the external wall of the nest. (B) Sections of the nest showing the internal structure. The arrow shows the leaves and branches used as supports in nest fixation. (C) Details of the nest. The arrow indicates a worker on a wall that is being rebuilt. (D) The arrow shows a worker holding a larva in its jaws. The larva throws silk threads while the worker walks on the nest.
Figure 2 in Ecology and behaviour of the weaver ant Camponotus (Myrmobrachys) senex
Figure 2. Scanning Electron Micrography of the nest of the weaver ant Camponotus senex. (A) Part of the nest with a worker. The arrow indicates the wall structure (× 20 magnification). (B) Detail of part of the nest; (1) wall of the nest, (2) layer of silk that belongs to an internal wall (× 30 magnification). (C) Scan of the surface among the silk layers. The arrow shows deformed organic material deposited by ants among the silk layers (× 30 magnification). (D) Scan of the wall of the nest showing the random positioning of the silk threads (× 600 magnification).
FIG. 6 in Foraging ecology of the giant Amazonian ant Dinoponera gigantea (Hymenoptera, Formicidae, Ponerinae): activity schedule, diet and spatial foraging patterns
FIG. 6. Ritualized territorial contest between Dinoponera gigantea foragers from diVerent colonies at the border of their foraging areas. (A) Ants lock their mandibles together, vigorously antennate each other's head, and constantly kick one another with the Žrst pair of legs. (B) As the contest escalates the dominant ant (right) directs the tip of the gaster against the opponent's body. The subordinate ant eventually walks away as she breaks free.
FIG. 2 in Foraging ecology of the giant Amazonian ant Dinoponera gigantea (Hymenoptera, Formicidae, Ponerinae): activity schedule, diet and spatial foraging patterns
FIG. 2. Frequency distribution of trip duration relative to diVerent activities performed by workers of Dinoponera gigantea in a Brazilian rainforest site. Although foraging ants may be away from the nest for up to 3 h, successful foragers usually return after 30–60 min of searching. Data are based on continuous 12-h observations at colony Nos 9 and 10, from 6.00 a.m. to 6.00 p.m. Two successful foragers from each colony are not included in the graphs because the duration of their foraging trips could not be recorded.
Data from: The direct and ecological costs of an ant-plant symbiosis
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Data from: Biotic-drivers of seedling establishment in Neotropical savannas: selective granivory and seedling herbivory by leaf-cutter ants as an ecological filter
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Data from: Disentangling endogenous versus exogenous pattern formation in spatial ecology: a case study of the ant Azteca sericeasur in southern Mexico
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Thistle-down velvet ants in the Desert Mimicry Ring and the evolution of white coloration: Müllerian mimicry, camouflage, and thermal ecology
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Multidimensional trait morphology predicts ecology across ant lineages
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Data from: Ants as ecological indicators of rainforest restoration: community convergence and the development of an Ant Forest Indicator Index in the Australian wet tropics
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Foraging and spatial ecology of a polydomous carpenter ant (Camponotus leydigi) in tropical cerrado savanna: A natural history account
<p>Carpenter ants (genus <i>Camponotus</i>) are considered to be predominantly omnivorous, mixing several feeding habits that include predation, scavenging of animal matter, and plant-derived resources. Nitrogen acquisition is crucial for the nutritional ecology of ant colonies since growing larvae require sustainable protein provisioning. Here, we investigate the foraging ecology and the spatial nesting structure of the carpenter ant <i>Camponotus leydigi</i> in Brazilian cerrado savanna. By marking workers from different nests with distinct colors, we revealed that <i>C. leydigi</i> occupies physically separated but socially connected nests (up to 30 m apart), a phenomenon known as polydomy. Observational data on aboveground internest movements in <i>C. leydigi</i> corroborate cooperative exchanges between nest units and confirm several types of social connections, including internest transfer of liquid and solid food, transport of colony members (brood, workers), movement of solitary workers, and internest recruitment. Polydomous <i>C. leydigi</i> allocate foragers throughout 1,700 m<sup>2</sup>, feeding mostly on termites and plant-derived exudates. Influx of exudates is threefold higher compared to solid food. Uric acid pellets excreted by lizards comprise 20% of the solid diet in <i>C. leydigi</i>, a rare quantitative assessment of this peculiar type of nitrogen complementation in ants. Based on video recordings, we hypothesize that nest decentralization in <i>C. leydigi</i> may reduce foraging constraints caused by overt interference by the aggressive ant <i>Ectatomma brunneum</i>, which regularly blocks nest entrances. Our field study enhances the importance of natural history data to clarify selective pressures underlying the evolution of particular behavioral patterns (nutritional and nesting habits) in ants.</p>
Figure 7 in Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae)
Figure 7. Coexistence between Colobopsis and their putative model species on the same tree.
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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.