Results 11 to 20 of about 212 (113)

Three phylogenetically distinct and culturable diazotrophs are perennial symbionts of leaf-cutting ants. [PDF]

Ecol Evol, 2021
In leaf‐cutting ant pests, an obligate mutualistic basidiomycete mediates the ants’ nutrition with carbons from vegetal matter using a fermenter‐like system inside the nest, called a “fungus garden.” Diazotrophs such as Enterobacteriales in the fungus garden and intestinal Rhizobiales were proposed to mediate the incorporation of atmospheric nitrogen ...
Zani ROA, Ferro M, Bacci M.
europepmc   +2 more sources

Distinct and enhanced hygienic responses of a leaf-cutting ant toward repeated fungi exposures. [PDF]

Ecol Evol, 2022
The leaf‐cutting ant Atta sexdens discriminates between different antagonistic fungi and apply distinct responses to remove them from the fungus garden. Also, successive exposures to the same antagonist increase sanitization in the fungus garden.
Goes AC, Kooij PW, Culot L, Bueno OC, Rodrigues A.   +4 more
europepmc   +2 more sources

Shifts in Chromosome Evolution Rates Shape the Karyotype Patterns of Leafcutting Ants. [PDF]

Ecol Evol
Modern phylogenetic methods were used to explore how chromosome number and other karyotypic traits vary across species. The focus was on testing whether karyotypic traits follow a Brownian motion model (indicating neutral changes) or are influenced by phylogenetic constraints.This research elucidates the mechanisms underlying chromosomal evolution and ...
Cardoso DC, Cristiano MP.
europepmc   +2 more sources

Ant Diversity and Stratification in an Amazonian Rainforest. [PDF]

Ecol Evol
We examined the three strata of an Amazonian rainforest (e.g., the ground and leaf litter, understory and canopy) using only two sampling techniques and analyzed their functional traits. We identified 494 ant species from 10 subfamilies and 77 genera over ≈3.0 ha, showing that they are species rich and abundant, particularly at ground level.
Delabie JHC, Dejean A, Leponce M, Longino JT, Orivel J, Touchard A, Compin A.   +6 more
europepmc   +2 more sources

Vertical Stratification Increases the Capacity of Morphological Traits to Predict Trophic Position in Neotropical Ants. [PDF]

Ecol Evol
We use data from 73 Neotropical ant species to examine the strength of associations between nine morphological traits and trophic position. No individual morphological trait explained variation in the trophic position of arboreal species, whereas three traits individually correlated with the trophic position of ground species, but only weakly so ...
Vieira J, Neves KC, Zuanon LA, Gibb H, Andersen AN, Vasconcelos HL.   +5 more
europepmc   +2 more sources

The predatory behavior of ants: an impressive panoply of morphological adaptations. [PDF]

Insect Sci
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Dejean A, Cerdá X, Orivel J, Azémar F, Wild AL, Corbara B, Touchard A.   +6 more
europepmc   +2 more sources

Large deformation diffeomorphic mapping of 3D shape variation reveals two distinct mandible and head capsule morphs in Atta vollenweideri leaf-cutter worker ants. [PDF]

Ecol Evol
Atta vollenweideri leaf‐cutter ant workers vary continously in size across more than two orders of magnitude in body mass. We investigated whether size‐variation correlates with shape variation by analysing the 3D morphology of mandibles and head capsules.
Imirzian N, Püffel F, Roces F, Labonte D.   +3 more
europepmc   +2 more sources

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

Systematic 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, Jeffrey Sosa‐Calvo, Ted R. Schultz, Christian Rabeling, Maurício Bacci Jr   +4 more
wiley   +1 more source

Commodity risk assessment of Persea americana from Israel

EFSA Journal, Volume 19, Issue 2, February 2021., 2021
Abstract The EFSA Panel on Plant health was requested to prepare and deliver risk assessments for commodities listed in the relevant Implementing Acts as ‘High risk plants, plant products and other objects’ (Commission Implementing Regulation (EU) 2018/2019 establishing a provisional list of high risk plants, plant products or other objects, within the
EFSA Panel on Plant Health (PLH), Claude Bragard, Katharina Dehnen‐Schmutz, Francesco Di Serio, Paolo Gonthier, Marie‐Agnès Jacques, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Lucia Zappalà, Pedro Gómez, Andrea Lucchi, Gregor Urek, Sara Tramontini, Olaf Mosbach‐Schulz, Eduardo de la Peña, Jonathan Yuen   +25 more
wiley   +1 more source

Phorid Flies Parasitizing Leaf-Cutting Ants: Their Occurrence, Parasitism Rates, Biology and the First Account of Multiparasitism

Sociobiology, 2016
The leaf-cutting ants Atta sexdens (Linnaeus) and Atta laevigata (Smith) were parasitized by the following phorid flies: Apocephalus attophilus Borgmeier, Apocephalus vicosae Disney, Myrmosicarius grandicornis Borgmeier and species of Eibesfeldtphora ...
Marcos Antonio Lima Bragança, Filipe Viegas Arruda, Lana Rubia Rocha Souza, Hendria Cirqueira Martins, Terezinha Maria Castro Della Lucia   +4 more
doaj   +1 more source