Results 11 to 20 of about 3,065 (169)

Novel Worker-Like Behavior Observed in Gynes of the Social Parasite <i>Tetramorium microgyna</i>. [PDF]

open access: yesEcol Evol
Our article reports, to our knowledge, the first observations of inquiline gynes performing worker tasks for their host colony. We dissected these gynes to establish that they were all unmated. We hypothesize that nest excavation by social parasites represents an artifact of a non‐parasitic past.
Brassard F, Kwapich C.
europepmc   +2 more sources

Landscape configuration and soil properties shape ant-mediated seed dispersal in tropical dry forest agricultural landscapes. [PDF]

open access: yesJ Anim Ecol
We show that ant‐mediated seed dispersal components respond differently to local soil conditions and landscape structure in Caatinga agricultural mosaics. Low‐intensity rainfed croplands maintained or enhanced seed removal compared to natural remnants, highlighting how small‐scale agriculture can sustain key ecological processes in human‐modified dry ...
Silva JM   +5 more
europepmc   +2 more sources

Recognition and Aggression of conspecific and heterospecific worker in Acromyrmex subterraneus subterraneus (Forel) (Hymenoptera: Formicidae) [PDF]

open access: yesSociobiology, 2015
Aggressive behavior is important for social insects because it makes possible for the colony to defend itself and the offspring from the action of invasive species.
Tiago Georg Pikart   +4 more
doaj   +2 more sources

Spiroplasma Display an Intricate Continuum of Infection Heterogeneity and Persistence in Myrmica Ants. [PDF]

open access: yesMol Ecol
ABSTRACT Many bacterial taxa evolved facultative symbiotic associations with insects and spread through host populations by horizontal and maternal transmission. Co‐infection at the individual host level may facilitate or constrain the spread of facultative symbionts.
Castillo Franco D   +6 more
europepmc   +2 more sources

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

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   +5 more sources

Leafcutter Ant Farmers Prevent Loss of Edible Symbiotic Structures by Maintaining Allelic Diversity in Their Multinucleate Fungal Crop. [PDF]

open access: yesMol Ecol
ABSTRACT Leafcutter ants farm the domesticated fungal cultivar Leucoagaricus gongylophorus in subterranean nests containing up to hundreds of discrete garden chambers. The fungal cultivar produces edible symbiotic structures called gongylidia (nutritious swollen hyphal cells consumed by the ants) and expresses a form of polyploidy (multiple ...
Rødsgaard-Jørgensen A   +3 more
europepmc   +2 more sources

OCORRÊNCIA DE FORMIGAS CORTADEIRAS NA REGIÃO DA DEPRESSÃO CENTRAL DO ESTADO DO RIO GRANDE DO SUL [PDF]

open access: yesCiência Rural, 2002
Com o objetivo de identificar as espécies de formigas cortadeiras que existem na região da Depressão Central do Estado do Rio Grande do Sul, de verificar sua predominância e distribuição geográfica, realizou-se um levantamento em 51 municípios.
Douglas D. Grürzmacher   +2 more
doaj   +1 more source

The effect of homeopathic preparations on the activity level of Acromyrmex leaf-cutting ants=Atividade de formigas cortadeiras Acromyrmex spp. submetidas a preparações homeopáticas [PDF]

open access: yesActa Scientiarum. Agronomy, 2012
The effect of homeopathic preparations on the activities of the leaf-cutting ants Acromyrmex spp. was studied. A field experiment involving ant nests in six experimental areas was performed using a randomised complete block design.
Pedro Boff   +2 more
doaj   +1 more source

A single Streptomyces symbiont makes multiple antifungals to support the fungus farming ant Acromyrmex octospinosus [PDF]

open access: yes, 2013
Attine ants are dependent on a cultivated fungus for food and use antibiotics produced by symbiotic Actinobacteria as weedkillers in their fungus gardens. Actinobacterial species belonging to the genera Pseudonocardia, Streptomyces and Amycolatopsis have
Brearley, Charles   +6 more
core   +2 more sources

Symbiont-Mediated Protection of Acromyrmex Leaf-Cutter Ants from the Entomopathogenic Fungus Metarhizium anisopliae

open access: yesmBio, 2021
Many fungus-growing ants engage in a defensive symbiosis with antibiotic-producing ectosymbiotic bacteria in the genus Pseudonocardia, which help protect the ants’ fungal mutualist from a specialized mycoparasite, Escovopsis.
Gaspar Bruner-Montero   +5 more
doaj   +1 more source

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