Results 11 to 20 of about 3,032 (199)

Description of the male of Erromyrma Bolton & Fisher, 2016 (Hymenoptera, Formicidae) [PDF]

ZooKeys, 2023
The male of the myrmicine genus Erromyrma is described for the first time on the basis of two specimens of Erromyrma latinodis (Mayr, 1872) collected in northern Madagascar.
Manoa M. Ramamonjisoa, Nicole Rasoamanana, Brian L. Fisher   +2 more
doaj   +4 more sources

The complete mitochondrial genome of Pheidole nodus (Smith, 1874) (Hymenoptera: Formicidae) [PDF]

Mitochondrial DNA. Part B. Resources, 2022
Pheidole nodus (Smith, 1874) belongs to a famously hyperdiverse and ecologically dominant ant genus. The mitochondrial genome of P. nodus is 15,579 bp in length, and the overall base composition is 78.6% AT.
Yu Sang, Ru-Yi Yin, Yi Luo, Zhao-Min Zhou   +3 more
doaj   +2 more sources

ALTERNATIVAS DE FORMICIDAS EM PÓ NO CONTROLE DA FORMIGA-VERMELHA-DE-MONTE, Acromyrmex heyeri [PDF]

Ciência Florestal, 2000
Com o objetivo de criar alternativas no controle químico da formiga-vermelha-de-monte, Acromyrmex heyeri (Forel, 1899) (Hymenoptera: Formicidae, Attini) foram instalados quatro ensaios com formicidas em pó, em Santa Maria, estado do Rio Grande do Sul ...
Fábio Moreira Link, Henrique Moreira Link, Dionisio Link   +2 more
doaj   +5 more sources

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

Ultrasound 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, Ramirez Zegarra R, Corno E, Mappa I, Lu JLA, Di Pasquo E, Morganelli G, Abou-Dakn M, Germano C, Attini R, Masturzo B, Rizzo G, Ghi T.   +12 more
europepmc   +2 more sources

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

Health 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, Pilloni E, Rolfo A, Botta G, Parpinel G, Cortese P, Cotrino I, Attini R, Revelli A, Masturzo B.   +9 more
europepmc   +2 more sources

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

Ecol 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, Naskrecki P, Faucher C, Azémar F, Tindo M, Manzi S, Gryta H.   +6 more
europepmc   +2 more sources

Short-term morbidity and types of intrapartum hypoxia in the newborn with metabolic acidaemia: a retrospective cohort study. [PDF]

BJOG, 2022
Abstract Objectives To assess labour characteristics in relation to the occurrence of Composite Adverse neonatal Outcome (CAO) within a cohort of fetuses with metabolic acidaemia. Design Retrospective cohort study. Setting Three Italian tertiary maternity units. Population 431 neonates born with acidaemia ≥36 weeks.
di Pasquo E, Commare A, Masturzo B, Paolucci S, Cromi A, Montersino B, Germano CM, Attini R, Perrone S, Pisani F, Dall'Asta A, Fieni S, Frusca T, Ghi T.   +13 more
europepmc   +2 more sources

Cyatta abscondita: taxonomy, evolution, and natural history of a new fungus-farming ant genus from Brazil. [PDF]

PLoS ONE, 2013
Cyatta abscondita, a new genus and species of fungus-farming ant from Brazil, is described based on morphological study of more than 20 workers, two dealate gynes, one male, and two larvae. Ecological field data are summarized, including natural history,
Jeffrey Sosa-Calvo, Ted R Schultz, Carlos R F Brandão, Christiana Klingenberg, Rodrigo M Feitosa, Christian Rabeling, Maurício Bacci, Cauê T Lopes, Heraldo L Vasconcelos   +8 more
doaj   +1 more source

Embryogenesis in Myrmicine Ants Combines Features of Short Germ-Band Development With a Progressive Mode of Segmentation. [PDF]

J Exp Zool B Mol Dev Evol
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Fang CC, Rajakumar A, Kenny A, Mueller UG, Abouheif E, Stein D.   +5 more
europepmc   +2 more sources

First record of Cyphoderus innominatus Mills, 1938 (Collembola: Paronellidae) in Early Colonies of the Leaf-cutting Ant Atta sexdens

Sociobiology, 2021
Cyphoderus innominatus Mills, 1938 (Collembola: Paronellidae) was first observed in early colonies of Atta sexdens leaf-cutting ants (Hymenoptera: Formicidae).
Tarcísio Marcos Macedo Mota Filho, Kátia Kaelly Andrade Sousa, Roberto Silva Camargo, João Victor Lemos Cavalcante Oliveira, Nadia Caldato, Douglas Zeppelini, Luiz Carlos Forti   +6 more
doaj   +1 more source