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170 results for “ant nest”
Figure 1. - Location of sites where records of caterpillars of Phengarisalcon (triangles) and Phengarisnausithous (circles) in ant nests are known in the Czech Republic.
Figure 1. - Location of sites where records of caterpillars of Phengarisalcon (triangles) and Phengarisnausithous (circles) in ant nests are known in the Czech Republic.
Figure 1. - Location of sites where records of caterpillars of Phengarisalcon (triangles) and Phengarisnausithous (circles) in ant nests are known in the Czech Republic.
Figure 1. - Location of sites where records of caterpillars of Phengarisalcon (triangles) and Phengarisnausithous (circles) in ant nests are known in the Czech Republic.
Figures 8-13. 8 in Use of a Green Tree Ant nest by the jumping spider Carrhotus viduus in Maharashtra, India (Araneae: Salticidae: Salticini)
Figures 8-13. 8, Relative position of the female Carrhotus viduus nest adjacent to an active Oecophylla smaragdina nest enclosed in dried leaves. 9, A second male C. viduus (#2) near the first male (#1) at the entrance to his shelter. 10, O. smaragdina worker carrying a captured ant into the nest. 11, Male C. viduus and nearby O. smaragdina worker on the shelter of the female C. viduus (see Figure 8). 12, Male C. viduus on the active ant nest, watching nearby ants. 13, Male C. viduus above the shelter of the female C. viduus, looking down at an ant.
Fig. 6 in , a New Neotropical Jackal Fly Genus of Milichiidae (Insecta: Diptera) Associated with Carton Ant Nest.
Fig. 6. Distribution map of known occurrence of Brakemyia metallica, gen. et sp. nov.
Data from: Tropical arboreal ants form dominance hierarchies over nesting resources
Interspecific dominance hierarchies have been widely reported across animal systems. High-ranking species are expected to monopolize more resources than low-ranking species via resource monopolization. In some ant species, dominance hierarchies have been used to explain species coexistence and community structure. However, it remains unclear whether or in what contexts dominance hierarchies occur in tropical ant communities. This study seeks to examine whether arboreal twig-nesting ants competing for nesting resources in a Mexican coffee agricultural ecosystem are arranged in a linear dominance hierarchy. We described the dominance relationships among 10 species of ants and measured the uncertainty and steepness of the inferred dominance hierarchy. We also assessed the orderliness of the hierarchy by considering species interactions at the network level. Based on the randomized Elo-rating method, we found that the twig-nesting ant species Myrmelachista mexicana ranked highest in the ranking, while Pseudomyrmex ejectus was ranked as the lowest in the hierarchy. Our results show that the hierarchy was intermediate in its steepness, suggesting that the probability of higher ranked species winning contests against lower ranked species was fairly high. Motif analysis and significant excess of triads further revealed that the species networks were largely transitive. This study highlights that some tropical arboreal ant communities organize into dominance hierarchies.
Data from: The socially parasitic ant Polyergus mexicanus has host-associated genetic population structure and related neighboring nests
<p>The genetic structure of populations can be both a cause and a consequence of ecological interactions. For parasites, genetic structure may be a consequence of preferences for host species or of mating behavior. Conversely, genetic structure can determine where conspecific interactions among parasites lay on a spectrum from cooperation to conflict. We used microsatellite loci to characterize the genetic structure of a population of the socially parasitic dulotic (aka "slave-making") ant (<i>Polyergus mexicanus</i>), which is known for its host-specificity and conspecific aggression. First, we assessed whether the pattern of host species use by the parasite has influenced parasite population structure. We found that host species use was correlated with subpopulation structure, but this correlation was imperfect: some subpopulations used one host species exclusively, while others used several. Second, we examined the viscosity of the parasite population by measuring the relatedness of pairs of neighboring parasitic ant nests at varying distances from each other. Although natural history observations of local dispersal by queens suggested the potential for viscosity, there was no strong correlation between relatedness and distance between nests. However, 35% of nests had a closely related neighboring nest, indicating that kinship could potentially affect the nature of some interactions between nests of this social parasite. Our findings confirm that ecological forces like host species selection can shape the genetic structure of parasite populations, and that such genetic structure has the potential to influence parasite-parasite interactions in social parasites via inclusive fitness.</p>
Data from: Leaf-cutting ant nests support less dense and impoverished seed assemblages in a human-modified Caatinga dry forest
<p>Regenerating forests make up an increasingly large portion of tropical landscapes worldwide and regeneration dynamics may be influenced by leaf-cutting ants (LCA), which proliferate in disturbed areas and collect seeds for fungus culturing. Here we investigate how LCA influence seed fate in human-modified areas of Caatinga dry forest. We evaluate the seed deposition and predation on Atta opaciceps nests, foraging habitat surrounding nest and control habitat away of nest influence of 15 colonies located along a forest cover gradient during the rainy and dry season. For each habitat, four 50-cm2 plots were established and all seeds on the soil surface were collected along one year. We recorded 13,628 seeds distributed among 47 species and 36.57% of the total seeds did not show any sign of predation. Nest mound habitats supported low-density and species-poor seed assemblages, which were taxonomically distinct from the control habitats. These effects only occurred in the rainy season. The proportion of undamaged seeds were similar across the habitats. While forest cover did not influence seed assemblage in terms of species richness or seed predation, it did interact with habitat type via increments in seed abundance as forest cover increased across the nests. Forest cover also affected seed composition, but only in the rainy season. These results indicate that LCA decrease seed deposition in areas under their influence, particularly on the nest mounds. As LCA profit from human disturbance in the Caatinga, their role as seed 'sinks' should be enhanced in disturbed Caatinga patches, particularly during the rainy season, when most of the plant recruitment occurs. Our findings reinforce the importance of LCA as drivers of forest dynamics and resilience in human-modified landscape.</p>
Formica exsecta comparison of the bacterial and fungal microbiomes of nest material and the ants
<p>This study explores the microbiome of the ant <em>Formica exsecta,</em> and compares this to the microbiome found in the nest material. We found fundamental differences in both the bacterial and the fungal communities between ants and their nest material, but no significant differences in the bacterial and fungal communities among colonies. Species diversity, species richness, and evenness were all significantly lower for bacteria in ants than in nest material, whereas for fungi only species richness was lower in ants, than in nest material. No such differences were found among ants from diffrent colonies.</p>
Foraging behavior affects nest architecture in a cross-species comparison of ant nests
<p>Animals construct and inhabit nests that can exhibit dramatic intra- and inter-specific variation due to differences in behavior, the biotic and abiotic environment, and evolutionary history. In ants, variation in nest architecture not only reflects differences in ecology and collective behavior; it influences the behaviors of the colonies that inhabit them. Each component of the nest (such as depth, and the number, size, and connectivity of chambers) reflects selective pressures for different functions, or structural constraints that are imposed by the environment or evolutionary history. To determine potential drivers of nest structure variation in subterranean nests, we performed a meta-analysis of published ant nests to compare different structural elements within and across species. We complemented this survey with 42 nest casts of two closely related species. We quantified nest features that can potentially impact ant foraging behavior and examined whether phylogeny or foraging strategy are better explanatory variables for the variation we observed. We found that foraging strategy better explained nest features than evolutionary history. Our work reveals the importance of ecology in shaping nest structure and provides an important foundation for future investigations into the selective pressures that have shaped ant nest architecture.</p>
Fig. 3 in Characteristics of thermal processes in ant nests built under stones (Hymenoptera: Formicidae)
Fig. 3 – Temperature distribution for stone No. 2 on 06/19/2021.
Data, code, and metadata for: Symbiotic acacia ants drive nesting behavior by birds in an African savanna
<p>Data, code, and metadata that can be used to reproduce the analyses underlying 'Symbiotic acacia ants drive nesting behavior by birds in an African savanna' by Lujan, Nielsen et al. 2023 Biotropica (Preprint: https://doi.org/10.1101/2023.03.06.531340).</p><p>Individual data owners are detailed in the data. Data may only be used to reproduce the analyses underlying Lujan, Nielsen, et al. (2023). Any other use requires the written permission of the data owners.</p><p>For more detailed information, please visit the metadata file.</p>
Foraging behavior affects nest architecture in a cross-species comparison of ant nests
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Data from: Tropical arboreal ants form dominance hierarchies over nesting resources
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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
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Dominance of a highly invasive ant is limited to the nesting territory of its supercolony
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Data from: Azteca ants maintain unique microbiomes across functionally distinct nest chambers
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Formica exsecta comparison of the bacterial and fungal microbiomes of nest material and the ants
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Data from: Leaf-cutting ant nests support less dense and impoverished seed assemblages in a human-modified Caatinga dry forest
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Data from: Social immunity in a supercolonial invasive ant: Nest structure confers immune function
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Disentangling the assembly mechanisms of ant cuticular bacterial communities of two Amazonian ant species sharing a common arboreal nest
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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.