Results 21 to 30 of about 2,736 (207)

Three cuticular amides in the tripartite symbiosis of leafcutter ants

open access: yesArchives of Insect Biochemistry and Physiology, Volume 114, Issue 2, Page 1-13, October 2023., 2023
The heatmap points out three alkyl amides specific for leafcutter ants covered with symbiotic bacteria. These findings indicate an interspecific function of the described compounds within the ant−bacteria relationship. Abstract Cuticular hydrocarbons (CHCs) play various roles in insects' chemical ecology. As leafcutter ants live in a specific symbiosis
Johannes‐Paul Fladerer   +2 more
wiley   +1 more source

Weathering the hunt: The role of barometric pressure in predator insects' foraging behaviour

open access: yesEcology and Evolution, Volume 13, Issue 8, August 2023., 2023
Despite the essential role of barometric pressure, its influence on insects remains poorly understood, particularly in predator insects. Our study showed that three predator species from distinct orders, with varying morphological, physiological, ecological and biological characteristics, modify their foraging behaviour in response to barometric ...
Kamila E. X. Azevedo   +3 more
wiley   +1 more source

POPULATION GENETICS OF Atta sexdens rubropilosa (HYMENOPTERA: FORMICIDAE)

open access: yesActa Biológica Colombiana, 2013
The genetic variability of Atta sexdens rubropilosa leaf-cutting ants collected from five brazilian localities was evaluated with PCR-RAPD technique. We used 15 primers producing 148 fragments of which 123 (83,11 %) contained polymorphisms. The estimated Shannon index was 0.3836 ± 0.2335 showing that these ants possess high genetic diversity.
Belizário Cantagalli, Liriana   +2 more
openaire   +4 more sources

Da Vinci's yeast: Blastobotrys davincii f.a., sp. nov

open access: yesYeast, Volume 40, Issue 1, Page 7-31, January 2023., 2023
Several surveys from around the world reported the same yeast species from a wide range of substrates, most notably from the iconic self‐portrait of Leonardo da Vinci. None of these studiesidentified their strains, clones, or OTUs as Blastobotrys. Here we describe this as a new species and name it Blastobotrys davincii.
Cobus M. Visagie   +5 more
wiley   +1 more source

Learning through the waste: olfactory cues from the colony refuse influence plant preferences in foraging leaf-cutting ants [PDF]

open access: yes, 2016
Leaf-cutting ants learn to avoid plants initially harvested if they proved to be harmful for their symbiotic fungus once incorporated into the nest.
Arenas, Andres, Roces, Flavio
core   +1 more source

Revisiting the hymenopteran diploid male vortex: a review of avoidance mechanisms and incidence

open access: yesEntomologia Experimentalis et Applicata, Volume 170, Issue 12, Page 1010-1031, December 2022., 2022
The Hymenoptera (bees, ants, wasps, and sawflies) have haploid males and diploid females. According to the diploid male vortex (DMV) theory, inbreeding increases sterile diploid male production and extinction risk for many species. We reviewed DMV incidence and avoidance.
Kelley Leung, Henk van der Meulen
wiley   +1 more source

BIOLOGICAL CONTROL IN LEAF-CUTTING ANTS, Atta sexdens (HYMENOPTERA: FORMICIDAE), USING PATHOGENIC FUNGI

open access: yesRevista Árvore, 2021
Chemical control using toxic baits containing the active ingredient sulfluramid at 0.3% (w/w) is the main method for controlling leaf-cutting ants of the genera Atta and Acromyrmex.
Tarcísio Marcos Macedo Mota Filho   +4 more
doaj   +1 more source

EFEITO DE FORMULAÇÕES GRANULADAS DE DIFERENTES PRODUTOS QUÍMICOS E À BASE DE FOLHAS E DE SEMENTES DE GERGELIM, Sesamum indicum, NO CONTROLE DE FORMIGUEIROS DE Atta sexdens rubropilosa Forel, 1908 (HYMENOPTERA: FORMICIDAE) [PDF]

open access: yes, 2003
Avaliou-se a eficiência de diferentes iscas formicidas comercializadas e de outras fabricadas artesanalmente à base de gergelim, Sesamum indicum, no controle de formigueiros de saúva-limão, Atta sexdens rubropilosa Forel, 1908.
Alberto Dorval, Otávio Peres Filho
core   +2 more sources

Phylogenomic reconstruction reveals new insights into the evolution and biogeography of Atta leaf‐cutting ants (Hymenoptera: Formicidae)

open access: yesSystematic Entomology, Volume 47, Issue 1, Page 13-35, January 2022., 2022
We employ phylogenomic markers (UCEs) to reconstruct the most extensively sampled phylogeny to date for the ecologically dominant leaf‐cutting ant genus Atta, the major herbivore of the New World tropics. The ancestor of Atta arose 8.5 Ma in the North/Central America + NW South America range, and its descendant species rapidly radiated into Neotropical
Corina A. Barrera   +4 more
wiley   +1 more source

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

open access: yes, 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   +4 more sources

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