Results 11 to 20 of about 1,384 (194)

The Antennal Lobes of Fungus-Growing Ants (Attini): Neuroanatomical Traits and Evolutionary Trends [PDF]

open access: yesBrain, Behavior and Evolution, 2009
Ants of the tribe Attini are characterized by their obligate cultivation of symbiotic fungi. In addition to the complex chemical communication system of ants in general, substrate selection and fungus cultivation pose high demands on the olfactory system of the Attini. Indeed, behavioral studies have shown a rich diversity of olfactory-guided behaviors
Kelber, Christina   +3 more
openaire   +4 more sources

Attini

open access: yes, 2009
Identification key to the genera formerly considered Mycetophylax, based on workers and gynes 1. Subtriangular head, without psammophore. Posterior margin of postpetiole straight, without any median impression. Color light to dark brown. Lives exclusively in dunes and “restingas” of the Atlantic Ocean; preferring arid habitats with sandy soil ..........
Klingenberg, Christiana   +1 more
openaire   +3 more sources

Sexual castes of Trachymyrmex fuscus (Formicidae: Attini) performing worker tasks [PDF]

open access: yesCiência Rural, 2015
:The main of this research was to report an atypical foraging behavior in a colony of Trachymyrmex fuscus, situated in "Cerrado" (savanna ecoregion of Goiás, Brazil). The colony foraging activity was performed only by sexual caste.
Márcio da Silva Araújo   +4 more
doaj   +4 more sources

Pregnancy and Kidney Diseases: Multidisciplinary Follow-Up and the Vicious Circles Involving Pregnancy and CKD, Preeclampsia, Preterm Delivery and the Kidneys. [PDF]

open access: yesJ Clin Med, 2022
Thomas Addis, the father of nephrology, once wrote that a clinician is complex, "he is part craftsman, part practical scientist, and part historian" [...]
Piccoli GB   +3 more
europepmc   +2 more sources

Fungos negros presentes no integumento de formigas-cortadeiras (Tribo Attini)

open access: yes, 2016
Pós-graduação em Ciências Biológicas (Microbiologia Aplicada ...
Toledo, Ana Paula Miranda Duarte
core   +3 more sources

Consecutive chorioangiomas in the same pregnancy: A clinical case and review of literature. [PDF]

open access: yesHealth Sci Rep, 2022
Abstract Background and Aims Aetiopathogenesis of chorioangioma is already unknown. Among the risk factors, hypoxia, environmental and genetic factors are believed to induce the overexpression of angiogenic cytokines promoting vascular proliferation.
Germano C   +9 more
europepmc   +2 more sources

Role of fetal head-circumference-to-maternal-height ratio in predicting Cesarean section for labor dystocia: prospective multicenter study. [PDF]

open access: yesUltrasound Obstet Gynecol, 2023
ABSTRACT Objective To evaluate the relationship between the fetal head‐circumference‐to‐maternal‐height (HC/MH) ratio measured shortly before delivery and the occurrence of Cesarean section (CS) for labor dystocia. Methods This was a multicenter prospective cohort study involving four tertiary maternity hospitals.
Dall'Asta A   +12 more
europepmc   +2 more sources

An Old World leaf-cutting, fungus-growing ant: A case of convergent evolution. [PDF]

open access: yesEcol Evol, 2023
Crematogaster clariventris, a myrmicine ant from the African subgenus Atopogyne, is a defoliator that uses vegetal material to grow fungi as do higher New World leaf‐cutting Attina, illustrating a case of convergent evolution. However, C. clariventris grows fungal mycelia to reinforce the carton of the nests rather than cultivating it for food ...
Dejean A   +6 more
europepmc   +2 more sources

The Influence of Selected Insecticides on the Oxidative Response of Atta sexdens (Myrmicinae, Attini) Workers. [PDF]

open access: yesNeotrop Entomol, 2023
AbstractReactive oxygen species (ROS) are generated as products of normal cellular metabolic activities; however, the use of pesticides to control leafcutter ants leads to unbalanced ROS production. We evaluated the effects of two insecticides (fipronil, sulfluramid) and metallic insecticide complex (magnesium complex [Mg(hesp)2(phen)] (1)) on the ...
Poiani SB   +5 more
europepmc   +3 more sources

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