Results 71 to 80 of about 2,441 (219)

The Metapleural Secretion of Acromyrmex laticeps (Forel) does not have Fungicide Effect on the Entomopathogenic Fungus Beauveria bassiana (Bals.) Vuill

open access: yesEntomoBrasilis, 2014
The metapleural gland (MPG) is an exocrine structure, exclusive to formicids, being more developed in females and workers. This structure is stunted or nonexistent in males.
Luciane Junqueira, Elena Diehl
doaj   +3 more sources

PREFERÊNCIA DE CORTE DE Acromyrmex crassispinus (FOREL, 1909) E Acromyrmex ambiguus (EMERY, 1887) (HYMENOPTERA: FORMICIDAE) POR DIFERENTES ESPÉCIES DE EUCALIPTOS EM LABORATÓRIO

open access: yesCiência Florestal, 2014
The search for new leafcutter ant management and control methods have been the aim of several studies over the country, propelled by economic and environmental aspects.
João Luis Osório Rosado   +6 more
doaj  

Worker Survival and Egg Production—But Not Transcriptional Activity—Respond to Queen Number in the Highly Polygynous, Invasive Ant Tapinoma magnum

open access: yesMolecular Ecology, Volume 34, Issue 6, March 2025.
ABSTRACT In social animals, reproductive activity and ageing are influenced by group composition. In monogynous (single‐queen) insect societies, queen presence affects worker fecundity and longevity, but less is known about worker responses to queen number variation in polygynous (multi‐queen) species or how queens age in these systems.
Anna Lenhart   +5 more
wiley   +1 more source

Damage by Acromyrmex spp. to an Initial Pinus taeda L. Planting

open access: yesFloresta e Ambiente
The objective of this study is to evaluate the damage caused by Acromyrmex heyeri Forel, 1899 and Acromyrmex lobicornis Emery, 1887 to Pinus taeda L. seedlings during the first two months after replanting.
Edison Bisognin Cantarelli   +4 more
doaj   +1 more source

Tree species controls over nitrogen and phosphorus cycling in a wet tropical forest

open access: yesEcological Monographs, Volume 95, Issue 1, February 2025.
Abstract Wet tropical forests play an important role in the global carbon (C) cycle, but given current rates of land‐use change, nitrogen (N) and phosphorus (P) limitation could reduce productivity in regenerating forests in this biome. Whereas the strong controls of climate and parent material over forest recovery are well known, the influence of ...
Ann E. Russell   +4 more
wiley   +1 more source

Isoenzyme variation in the leaf-cutting ants Acromyrmex heyeri and Acromyrmex striatus (Hymenoptera, formicidae)

open access: yesGenetics and Molecular Biology, 2002
This is the first study of isoenzyme variability in the leaf-cutting ants (Myrmicinae, Attini) Acromyrmex heyeri (Forel, 1899) and A. striatus (Roger, 1863) which are common throughout the southern Brazilian state of Rio Grande do Sul.
Elena Diehl   +2 more
doaj   +1 more source

Hymenopteran‐specific TRPA channel from the Texas leaf cutter ant (Atta texana) is heat and cold activated and expression correlates with environmental temperature

open access: yesInsect Science, Volume 32, Issue 1, Page 301-320, February 2025.
Texas leaf cutter ant (Atta texana) populations have expanded northward and their obligate symbiotic fungus has increased cold tolerance. The ants have exquisitely temperature sensitive antennae; here, we find the antennae express a subset of six transient receptor potential (TRP) channels, including HsTRPA.
Julia M. York   +4 more
wiley   +1 more source

The diversity of microorganisms associated with Acromyrmex leafcutter ants

open access: yesBMC Evolutionary Biology, 2002
Background Molecular biological techniques are dramatically changing our view of microbial diversity in almost any environment that has so far been investigated.
Boomsma Jacobus J   +2 more
doaj   +1 more source

LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES

open access: yesActa Biológica Colombiana, 2014
Despite the condition of leaf-cutting ant pests in agroecosystems, it is undeniable the benefits they can bring in certain situations or environments.
Liriana Belizário Cantagalli   +3 more
doaj   +1 more source

Actividad forrajera de Acromyrmex lobicornis Emery (Hymenoptera: Formicidae) en un pastizal natural semiárido de la provincia de La Pampa (Argentina)

open access: yesEcología Austral, 1997
En este trabajo se realizó una evaluación cualitativa y cuantitativa del material acarreado a los hormigueros por Acromyrmex lobicornis en un pastizal-arbustal del Parque Nacional Lihue Calel. La actividad forrajera se concentró en dicotiledóneas.
Alberto Pilati   +2 more
doaj  

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