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Granivoría por hormigas del género Pogonomyrmex en el Monte Central: consumo de semillas e impacto sobre el banco de sueloSeed harvesting by ants of the genus pogonomyrmex in the Central Monte Desert: seed consumption and impact on the soil seed bandk
(Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires, 2007)
Effect of harvester ants of the genus Pogonomyrmex on the soil seed bank around their nests in the central Monte desert, Argentina
1. The abundance and composition of soil seed banks is a key determinant of plant community structure. Harvester ants can remove huge quantities of preferred seeds close to the nest affecting composition and spatial ...
Forager abundance and its relationship with colony activity level in three species of South American Pogonomyrmex harvester ants
The proportion of foragers in ant colonies is a fairly constant species-specific characteristic that could be determined by intrinsic or extrinsic factors. If intrinsic factors are relevant, species with similar life history ...
Foraging strategies and foraging plasticity in harvester ants (Pogonomyrmex spp., Hymenoptera: Formicidae) of the central Monte desert, Argentina
(Oesterreichische Gesell Entomofaunistik, 2015-09)
Foraging strategy determines the way harvester ants use space and therefore their access and impact on seed resources. In this study, we described the foraging strategy of three sympatric South American species of Pogonomyrmex ...
Fasting and chemical signals affect recruitment and foraging efficiency in the harvester ant, Pogonomyrmex vermiculatus
(BRILL ACADEMIC PUBLISHERS, 2009)
Solitary foraging in the ancestral South American ant, Pogonomyrmex vermiculatus. Is it due to constraints in the production or perception of trail pheromones?
Several North American species of Pogonomyrmex harvester ants exhibit group foraging, whereas South American species are exclusively solitary foragers. The composition of the secretions of the poison and Dufour glands in ...