Results 31 to 40 of about 772 (185)

The early life of a leaf‐cutter ant colony constrains symbiont vertical transmission and favors horizontal transmission

open access: yesEcology and Evolution, 2021
Colonial organisms host a large diversity of symbionts (collectively, parasites, mutualists, and commensals) that use vertical transmission (from parent colony to offspring colony) and/or horizontal transmission to disperse between host colonies.
Zachary I. Phillips   +2 more
doaj   +1 more source

Recognition of endophytic Trichoderma species by leaf-cutting ants and their potential in a Trojan-horse management strategy [PDF]

open access: yesRoyal Society Open Science, 2017
Interactions between leaf-cutting ants, their fungal symbiont (Leucoagaricus) and the endophytic fungi within the vegetation they carry into their colonies are still poorly understood.
Silma L. Rocha   +8 more
doaj   +1 more source

Dynamic analysis of stochastic delay mutualistic system of leaf-cutter ants with stage structure and their fungus garden

open access: yesJournal of Biological Dynamics, 2022
In this paper, we propose a stochastic delay mutualistic model of leaf-cutter ants with stage structure and their fungus garden, in which we explore how the discrete delay and white noise affect the dynamic of the population system.
Ruimin Zhang, Xiaohui Liu, Chunjin Wei
doaj   +1 more source

Cyatta abscondita: taxonomy, evolution, and natural history of a new fungus-farming ant genus from Brazil. [PDF]

open access: yesPLoS ONE, 2013
Cyatta abscondita, a new genus and species of fungus-farming ant from Brazil, is described based on morphological study of more than 20 workers, two dealate gynes, one male, and two larvae. Ecological field data are summarized, including natural history,
Jeffrey Sosa-Calvo   +8 more
doaj   +1 more source

Inhibition of symbiote fungus of the leaf cutter ant Atta sexdens by secondary metabolites from the bacterium Xenorhabdus szentirmaii associated with entomopathogenic nematodes

open access: yesArquivos do Instituto Biológico, 2018
: Leaf-cutter ants (Hymenoptera: Formicidae) have evolved as dominant herbivores on the American continent. These social insects remove the leaves of economically important plant species to maintain their colony’s food reserves, the symbiotic fungus ...
Julie Giovanna Chacon Orozco   +5 more
doaj   +1 more source

Do an ecosystem engineer and environmental gradient act independently or in concert to shape juvenile plant communities? Tests with the leaf-cutter ant Atta laevigata in a Neotropical savanna [PDF]

open access: yesPeerJ, 2018
Background Ecosystem engineers are species that transform habitats in ways that influence other species.While the impacts of many engineers have been well described, our understanding of how their impact varies along environmental gradients remains ...
Alan N. Costa   +2 more
doaj   +2 more sources

Leafcutter Ant Nests Inhibit Low-Intensity Fire Spread in the Understory of Transitional Forests at the Amazon's Forest-Savanna Boundary

open access: yesPsyche: A Journal of Entomology, 2012
Leaf-cutter ants (Atta spp.) remove leaf litter and woody debris—potential fuels—in and around their nests and foraging trails. We conducted single and three annual experimental fires to determine the effects of this leaf-cutter ant activity on the ...
Karine S. Carvalho   +3 more
doaj   +1 more source

Control of pest ants by pathogenic fungi: state of the art

open access: yesFrontiers in Fungal Biology, 2023
Pest ants are known for their damage to biodiversity, harm to agriculture, and negative impact on human welfare. Ants thrive when environmental opportunities arise, becoming pests and/or invading non-native areas.
Patricia J. Folgarait, Daniela Goffré
doaj   +1 more source

Communication or Toxicity: What Is the Effect of Cycloheximide on Leaf-Cutting Ant Workers?

open access: yesInsects, 2017
Leaf-cutting ants are insects that use plant material to grow fungus from which they feed. These fungus-growing ants perform various behavioral activities to establish an environment conducive to the fungus.
Kátia Kaelly Andrade Sousa   +2 more
doaj   +1 more source

Nonhuman Complexity Poetics: Leaf-Cutter Ants and Multispecies Composition [PDF]

open access: yesISLE: Interdisciplinary Studies in Literature and Environment, 2020
In this article I examine leaf-cutter ants, and particularly their nest architecture, in terms of what I call an ‘ethological poetics.’ I propose that thinking about leaf-cutter architecture is an engagement with a radically alternative aesthetics. I begin by contrasting human and insect ontologies, before focusing on ants.
openaire   +2 more sources

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