Results 41 to 50 of about 2,531 (177)
All termites secrete trail pheromones from their sternal gland, whereas ants use a variety of glands for this purpose. This and the diversity of chemical compounds that serve as trail pheromones among ants, and the uniformity of chemicals among termite trails, suggest a different evolutionary historical dynamics for the development of chemical mass ...
Klaus Jaffe +3 more
wiley +1 more source
As formigas, quando atraídas por um apêndice nutritivo, produzido na semente de certas plantas, podem exercer o papel de agente predador ou dispersor das sementes.
Ethel Fernandes de Oliveira Peternelli +2 more
doaj +1 more source
Subterranean Pitfall Traps: Is It Worth Including Them in Your Ant Sampling Protocol?
The use of subterranean traps is a relatively novel method to sample ants, and few studies have evaluated its performance relative to other methods. We collected ants in forests, savannas, and crops in central Brazil using subterranean pitfall traps and conventional pitfall traps placed on the soil surface. Sampling duration, soil depth, and sprinkling
Renata Pacheco +2 more
wiley +1 more source
Abstract This study describes and quantifies the behavioural acts of two laboratory colonies of Acromyrmex subterraneus brunneus by investigating worker age polyethism. Twenty‐nine behavioural acts were recorded during the 19‐week observation period. Young individuals performed tasks inside the nest related to brood care and care for the fungus garden,
R. S. Camargo +4 more
semanticscholar +3 more sources
We surveyed ant fauna in the leaf litter in an Atlantic Semideciduous forest in the State Park of Rio Doce (PERD). The work aimed to produce basic information about habitat effects on diversity, as well as about how the ant fauna in a such buffered forest habitat, as the litter layer, could respond the climate variation in a short and long term.
Flávio Siqueira de Castro +4 more
wiley +1 more source
Chemical warfare between leafcutter ant symbionts and a co-evolved pathogen [PDF]
Acromyrmex leafcutter ants form a mutually beneficial symbiosis with the fungus Leucoagaricus gongylophorus and with Pseudonocardia bacteria. Both are vertically transmitted and actively maintained by the ants.
AD Argoudelis +57 more
core +2 more sources
Transitional Complexity of Social Insect Immunity [PDF]
Genomic analyses between insects are often conducted by comparing host genomes to that of Drosophila. For honey bees, this led to the claim that the evolutionary transition to eusociality resulted in a reduction of immunity-related genes.
Bos, N., Otani, S., Yek, S.H.
core +2 more sources
Age Polyethism in Atta sexdens (Linnaeus) (Hymenoptera: Formicidae) [PDF]
This study aimed to verify age polyethism occurrence in medium-sized (cephalic capsule = 2.3 ± 0.21 mm) and small-sized (cc = 1.4 ± 0.10 mm) workers from Atta sexdens (Linnaeus) colonies. Four laboratory colonies were used, and they were maintained at 25
de Souza, Danival José +3 more
core +3 more sources
Camponotus fellah queens are singly mated [PDF]
The ant Camponotus fellah has been used in several behavioral and life history studies. An important factor that affects the genetic structure and division of labour within a colony is whether queens are singly or multiply mated.
Keller, L., La Mendola, C., Mersch, D.P.
core +1 more source
Densidade e tamanho de formigueiros de Acromyrmex crassispinus em plantios de Pinus taeda. [PDF]
O objetivo deste trabalho foi avaliar a densidade e o tamanho dos formigueiros de Acromyrmex crassispinus, ao longo do ano, em plantios de Pinus taeda de diferentes idades.
IEDE, E. T. +3 more
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