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57 results for “army ants”
Detection of prey odors underpins dietary specialization in a Neotropical top-predator: how army ants find their ant prey
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Data from: The rise of army ants and their relatives: diversification of specialized predatory doryline ants
Background Army ants are dominant invertebrate predators in tropical and subtropical terrestrial ecosystems. Their close relatives within the dorylomorph group of ants are also highly specialized predators, although much less is known about their biology. We analyzed molecular data generated from 11 nuclear genes to infer a phylogeny for the major dorylomorph lineages, and incorporated fossil evidence to infer divergence times under a relaxed molecular clock. Results Because our results indicate that one subfamily and several genera of dorylomorphs are non-monophyletic, we propose to subsume the six previous dorylomorph subfamilies into a single subfamily, Dorylinae. We find the monophyly of Dorylinae to be strongly supported and estimate the crown age of the group at 87 (74–101) million years. Our phylogenetic analyses provide only weak support for army ant monophyly and also call into question a previous hypothesis that army ants underwent a fundamental split into New World and Old World lineages. Outside the army ants, our phylogeny reveals for the first time many old, distinct lineages in the Dorylinae. The genus Cerapachys is shown to be non-monophyletic and comprised of multiple lineages scattered across the Dorylinae tree. We recover, with strong support, novel relationships among these Cerapachys-like clades and other doryline genera, but divergences in the deepest parts of the tree are not well resolved. We find the genus Sphinctomyrmex, characterized by distinctive abdominal constrictions, to consist of two separate lineages with convergent morphologies, one inhabiting the Old World and the other the New World tropics. Conclusions While we obtain good resolution in many parts of the Dorylinae phylogeny, relationships deep in the tree remain unresolved, with major lineages joining each other in various ways depending upon the analytical method employed, but always with short internodes. This may be indicative of rapid radiation in the early history of the Dorylinae, but additional molecular data and more complete species sampling are needed for confirmation. Our phylogeny now provides a basic framework for comparative biological analyses, but much additional study on the behavior and morphology of doryline species is needed, especially investigations directed at the non-army ant taxa.
FIGURE 13 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 13. Dorsal view of the hypopygium of the D. gribodoi queen (HAD 2.53 mm).
FIGURE 7 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 7. Lateral view of the head of a large D. gribodoi worker (HW 2.79 mm), Taï, Ivory Coast.
FIGURE 6 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 6. Lateral overview of a large D. emeryi worker from Taï, Ivory Coast.
FIGURE 4 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 4. Dorylus gribodoi male: genital capsule and subgenital plate.
FIGURE 3 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 3. Frontal view of the head of a Dorylus gribodoi male from Taï, Ivory Coast.
FIGURE 2 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 2. Lateral overview of a Dorylus gribodoi male from Taï, Ivory Coast.
FIGURE 5 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 5. Lateral overview of a large Dorylus gribodoi worker from Taï, Ivory Coast.
FIGURE 1 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 1. Definition of the subgenital plate measurements.
FIGURE 11 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 11. Lateral overview of the D. gribodoi queen collected from a nest at Lamto, Ivory Coast.
FIGURE 8 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
FIGURE 8. Lateral view of the head of a large D. emeryi worker (HW 3.62 mm) from Taï, Ivory Coast.
Linked collectors and determiners for: Carl W. & Marian E. Rettenmeyer Army Ant Guest Collection.
Natural history specimen data linked to collectors and determiners held within, "Carl W. & Marian E. Rettenmeyer Army Ant Guest Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/e457257e-fa64-4d64-87b1-8876efacd00c">https://bionomia.net/dataset/e457257e-fa64-4d64-87b1-8876efacd00c</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/e457257e-fa64-4d64-87b1-8876efacd00c">https://gbif.org/dataset/e457257e-fa64-4d64-87b1-8876efacd00c</a>. Formatted as a Frictionless Data package.
FIGURES 3−8 in Sicariomorpha, a New Myrmecophilous Goblin Spider Genus (Araneae, Oonopidae) Associated with Asian Army Ants
FIGURES 3−8. Sicariomorpha maschwitzi, comb. nov., male. 3, Dorsal; 4, ventral; 5, frontal; 6, lateral; 7, sternum, ventral; 8, abdomen, ventral.
Figure 2 in An Eocene army ant
Figure 2. Phylogenetic and phenotypic position of Dissimulodorylus perseus relative to extant dorylines. (a) Consensus tree resulting from combined analysis of 178 662 (100 supergene loci obtained using weighted statistical binnings [4,8]) molecular and 62 morphological characters under Bayesian Inference. Nodes with posterior probability support <0.95 noted with numerical values. Node ages reflect mean divergence time estimates from Borowiec [4]; nodes denoted with an asterisk were not recovered in divergence dating estimation of Borowiec [4] and so are arbitrary. Triangles denote estimated crown ages from Borowiec [4]. Fossils belonging to extant genera are indicated with the dagger (†) symbol. (b) Principal coordinates morphospace derived from Euclidean distance matrix of binary morphological characters included in phylogenetic reconstruction.
Data from: Multi-year genetic sampling indicates maternal gene flow via colony emigrations in the army ant Eciton burchellii parvispinum
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Data from: The rise of army ants and their relatives: diversification of specialized predatory doryline ants
Open the record for dataset details and reuse information.
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