Now showing items 1-10 of 104
Forager size of the leaf-cutting ant Atta sexdens (Hymenoptera: Formicidae) in a mature eucalyptus forest in Brazil
(Universidad de Costa Rica, 2000)
Observation of leaf-cutting ants foraging on wild mushrooms
(Birkhauser Verlag Ag, 2012-05-25)
This study reports on the observation of an unusual behavior in leaf-cutting ants: foraging on wild mushrooms. A colony of Acromyrmex lundi in Buenos Aires (Argentina) was observed intensively harvesting basidiomes (mushroom ...
Isolation of the symbiotic fungus of Acromyrmex pubescens and phylogeny of Leucoagaricus gongylophorus from leaf-cutting ants
(Elsevier B.V., 2017-05)
Leaf-cutting ants live in an obligate symbiosis with a Leucoagaricus species, a basidiomycete that serves as a food source to the larvae and queen. The aim of this work was to isolate, identify and complete the phylogenetic ...
Extended phenotypes and foraging restrictions: ant nest entrances and resource ingress in leaf-cutting ants
(Wiley Blackwell Publishing, Inc, 2019-03)
Several factors may restrict the acquisition of food to below the levels predicted by the optimization theory. However, how the design of structures that animals build for foraging restricts the entry of food is less known. ...
Push-pull to manage leaf-cutting ants: an effective strategy in forestry plantations
(John Wiley & Sons Ltd, 2020-08)
BACKGROUND: Leaf-cutting ants (LCAs) are amongst the most important forestry pests in South America. Currently, their control is carried out almost exclusively through the application of toxic baits of restricted use. Here ...
Refuse attracts? Effect of refuse dumps of leaf-cutting ants on floral traits
(Wiley Blackwell Publishing, Inc, 2019-02-13)
The nutrient-rich organic waste generated by ants may affect plant reproductive success directly by enhancing fruit production but also indirectly, by affecting floral traits related with pollinator attraction. Understanding ...
Traffic rules around the corner: walking of leaf-cutting ants at branching points in trunk trails
(Birkhauser Verlag Ag, 2017-11)
The existence of transport networks is vital for leaf-cutting ant foraging but may generate overcrowding, reducing the input of food into the nest. We studied how ants turn at branching points, a problematic sector for ant ...
Traffic restrictions for heavy vehicles: Leaf-cutting ants avoid extra-large loads when the foraging flow is high
(Elsevier Science, 2020-01)
A better knowledge of the behaviors that reduce traffic congestions is essential to understand the success of the trail system despite of costs. Leaf-cutting ants use a trunk-trail system to transport leaf fragments into ...
Avoidance of plants unsuitable for the symbiotic fungus in leaf-cutting ants: Learning can take place entirely at the colony dump
(Public Library of Science, 2017-03-08)
Plants initially accepted by foraging leaf-cutting ants are later avoided if they prove unsuitable for their symbiotic fungus. Plant avoidance is mediated by the waste produced in the fungus garden soon after the incorporation ...