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Colonies of real army ants always have only one queen, while some other ant species can have several queens. The queen is dichthadiigyne (a blind ant with large gaster) but may sometimes possess vestigial eyes. [5] The queens of army ants are unique in that they do not have wings, have an enlarged gaster size and an extended cylindrical abdomen ...
- Summary of Phylogenetic Analyses and Reclassification of The Dorylomorphs
- Army Ant Evolution
- Diversification of Non-Army Ant Lineages
- Divergence Times and Trends Within Dorylinae
We generated a molecular data set consisting of DNA sequences from 11 genes obtained from 73 dorylomorph taxa and 10 outgroup taxa. We inferred the phylogeny of dorylomorph lineages under several different analytical treatments of the data. Our fundamental analyses included all generated data, analyzed under partitioned Bayesian inference (BI) and ...
The army ants were reconstructed as monophyletic under most analytical treatments, with support varying considerably depending on treatment conditions. Our BI analysis of the entire data set supports army ant monophyly with a posterior probability (PP) of 0.99 (MrBayes) or 1.0 (BEAST), but ML analyses of this data set only weakly support army ant m...
The genera Cylindromymex and Acanthostichus were robustly resolved as sister groups under all analytical treatments. These results are consistent with previous studies [5–8], with one notable caveat. The species Cerapachys davisi is clustered within Acanthostichus with 100 percent support under all data treatments. Cylindromymex, Acanthostichus, an...
Our divergence dating analysis indicates that the crown group (i.e., extant) Dorylinae originated approximately 87 (95% CI: 74–101) million years ago (mya) (Figure 3). Initial estimates for the age of this group from previous studies were substantially older, with mean ages of 120 mya and 99–117 mya . Notably, both of these studies contained a lar...
- Seán G Brady, Brian L Fisher, Ted R Schultz, Philip S Ward
- 2014
The dorylomorph group of ants comprises the three subfamilies of army ants (Aenictinae, Dorylinae, Ecitoninae) together with the subfamilies Aenictogitoninae, Cerapachyinae, and Leptanilloidinae. We describe new morphological characters and synthesize data from the literature in order to present the first hypothesis of phylogenetic relationships among all dorylomorph genera.
Aug 17, 2022 · Most ants have eyes. They have two compound eyes that most people can see and three tiny eyes called ocelli that are best seen under a hand lens or microscope. A few kinds of ants, like army ants, have no eyes at all. Like other insects, ants have two antennae, which they use as a nose to smell things. They also use their antennae to touch ...
Amongdorylomorph ants,the three army ant subfamilies have received by far the most attention from biologists (e.g. Schneirla, 1971; Gotwald, 1995). Army ants predominantly occur in tropical and subtropical areas of Africa, the Americas, Asia, and Indo-Australia, although a few species range into more temperate regions. Ecitoninae contains
November 19, 2023. Ants, as industrious and social insects, play a crucial role in ecosystems worldwide. Their impact goes beyond natural habitats, influencing human activities. This article explores ant anatomy, shedding light on the mechanisms driving their behaviors, their roles within colonies, and their overall success as a species.
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Army Ants (Ecitoninae) are unique among ants and even within the animal kingdom due to several distinctive features and behaviors that set them apart: Nomadic Lifestyle: Army Ants are renowned for their nomadic way of life. Unlike many other ant species that establish permanent nests, Army Ants do not have fixed nest sites.
