Results 11 to 20 of about 31,233 (264)

Spatio-temporal permanence and plasticity of foraging trails in young and mature leaf-cutting ant colonies (Atta spp.) [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2005
The distribution and formation of foraging trails have largely been neglected as factors explaining harvesting patterns of leaf-cutting ants.We applied fractal analysis, circular, and conventional statistics to published and newly recorded trailmaps of ...
Amthor, A. M.   +22 more
core   +8 more sources

Morphophysiological differences between the metapleural glands of fungus-growing and non-fungus-growing ants (Hymenoptera, Formicidae). [PDF]

open access: yesPLoS ONE, 2012
The metapleural gland is an organ exclusive to ants. Its main role is to produce secretions that inhibit the proliferation of different types of pathogens.
Alexsandro Santana Vieira   +2 more
doaj   +1 more source

Leaf processing behaviour in Atta leafcutter ants: 90% of leaf cutting takes place inside the nest, and ants select pieces that require less cutting [PDF]

open access: yesRoyal Society Open Science, 2016
Leafcutter ants cut trimmings from plants, carry them to their underground nests and cut them into smaller pieces before inoculating them with a fungus that serves as a primary food source for the colony. Cutting is energetically costly, so the amount of
Ryan W. Garrett   +5 more
doaj   +1 more source

Susceptibility of Atta sexdens worker ants treated with the immunosuppressant Sandimmun Neoral to Metarhizium anisopliae [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2017
: The objective of this work was to evaluate if the immunosuppressant Sandimmun Neoral enhances the activity of Metarhizium anisopliae against the leaf-cutting ant Atta sexdens.
Aline Silvestre Pereira Dornelas   +7 more
doaj   +2 more sources

Interspecific Repellent Effect of Hydroalcoholic Solution of Nest Refuse from Two Leaf-cutter Ant Species

open access: yesSociobiology, 2023
Leaf-cutting ants manage their waste continuously to avoid risks of colony contamination. The presence of residues or their odor near foraging areas is enough for ants to stop attacking plant tissues.
Leandro Sousa-Souto   +2 more
doaj   +1 more source

Adaptive social immunity in leaf-cutting ants [PDF]

open access: yesBiology Letters, 2009
Social insects have evolved a suite of sophisticated defences against parasites. In addition to the individual physiological immune response, social insects also express ‘social immunity’ consisting of group-level defences and behaviours that include allogrooming.
Walker, Tom N., Hughes, William O. H.
openaire   +7 more sources

The dynamics of plant cell-wall polysaccharide decomposition in leaf-cutting ant fungus gardens. [PDF]

open access: yesPLoS ONE, 2011
The degradation of live plant biomass in fungus gardens of leaf-cutting ants is poorly characterised but fundamental for understanding the mutual advantages and efficiency of this obligate nutritional symbiosis.
Isabel E Moller   +4 more
doaj   +1 more source

How Do Leaf-Cutting Ants Recognize Antagonistic Microbes in Their Fungal Crops?

open access: yesFrontiers in Ecology and Evolution, 2020
Leaf-cutting ants employ diverse behavioral strategies for promoting the growth of fungal cultivars in a structure known as fungus garden. As a nutritionally rich resource for the ants, the fungal crop is threatened by microbial antagonists and pathogens.
Aryel C. Goes   +5 more
doaj   +1 more source

Daily Foraging Activity of Acromyrmex (Hymenoptera: Formicidae) Leaf-cutting ants

open access: yesSociobiology, 2016
Leaf-cutting ants are well-known insects due to their remarkable activity as herbivores and the considerable economic damage they cause to many crops.
Mariane Aparecida Nickele   +3 more
doaj   +1 more source

Biocontrol of leucoagaricus gongylophorus of leaf-cutting ants with the mycoparasitic agent trichoderma koningiopsis [PDF]

open access: yes, 2016
Leaf-cutting ants are one of the main agricultural and agroforestry pests in the Neotropic region. The essential food source of these ants is Leucoagaricus gongylophorus.
Bich, Gustavo Angel   +3 more
core   +1 more source

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