Buscar
Mostrando ítems 111-120 de 1173
Foraging of psilocybe basidiocarps by the leafcutting ant acromyrmex lobicornis in Santa Fé, Argentina
(2013-06-14)
Background It is generally accepted that material collected by leaf-cutting ants of the genus Acromyrmex consists solely of plant matter, which is used in the nest as substrate for a symbiotic fungus providing nutrition ...
Oviposition, life cycle, and longevity of the leaf-cutting ant Acromyrmex rugosus rugosus
(2017-01-01)
Studies related to the demography of individual members from ant colonies have received little attention, although they are the basis to understanding the population dynamics of colonies. Thus, the objective of this work ...
Allogrooming, self-grooming, and touching behavior: Contamination routes of leaf-cutting ant workers using a fat-soluble tracer dye
(2017-06-09)
The aim of this study was to determine whether worker self-grooming, allogrooming, and direct contact promotes the dispersal of substances among members of the colony. For this purpose, a tracer (Sudan III dye) was applied ...
Foraging activity pattern and herbivory rates of the grass-cutting ant Atta capiguara
(Springer, 2016-08-01)
The objective of this study was to investigate the seasonal change in the pattern of foraging activity in the leaf-cutting ant Atta capiguara and to provide an estimate of the annual herbivory rate of its colonies. We ...
Refuse production in leaf-cutting ants (Hymenoptera: Formicidae) and its relationship with leaf harvest
(Taylor & Francis Ltd, 1996-05-01)
We examined the relationship between fungal refuse production and vegetation input in a laboratory colony of the leaf-cutting ant Acromyrmex coronatus. We found only a strong 6-day time-delay in the production of refuse ...
Refuse production in leaf-cutting ants (Hymenoptera: Formicidae) and its relationship with leaf harvest
(Taylor & Francis Ltd, 1996-05-01)
We examined the relationship between fungal refuse production and vegetation input in a laboratory colony of the leaf-cutting ant Acromyrmex coronatus. We found only a strong 6-day time-delay in the production of refuse ...
Relationship between mandible morphology and leaf preference in leaf-cutting ants (Hymenoptera: Formicidae)
(Soc Colombiana Entomologia-socolen, 2015-07-01)
Morphological differences among mandibles of grass and leaf-cutting ant species were examined. Specifically, we compared morphometric measurements from mandibles of four species (Atta laevigata, A. bisphaerica, Acromyrmex ...
Fallen Branches as Part of Leaf-Cutting Ant Trails: Their Role in Resource Discovery and Leaf Transport Rates in Atta cephalotes
(2007)
Fallen branches, logs, and exposed roots (fallen branches hereafter) commonly form part of the trunk trail system of leaf-cutting ants that inhabit the tropical rain forest. We studied the role of fallen branches on resource ...
Do leaf-cutting ants benefit from forest fragmentation? Insights from community and species-specific responses in a fragmented dry forest
(Wiley-liss, Div John Wiley & Sons Inc, 2015-03)
1.The expansion of agriculture has led to forest loss and fragmentation, resulting in dramatic biodiversity impoverishment. Surprisingly few studies have assessed forest fragmentation effects on leaf-cutting ant assemblages, ...
Age polyethism in the leaf-cutting ant Acromyrmex subterraneus brunneus Forel, 1911 (Hym., Formicidae)
(Blackwell Publishing, 2014)