Results 81 to 90 of about 137 (128)
Metodología para la evaluación del potencial insecticida de especies forestales.
Revista Facultad Nacional de Agronomía Medellín, 2000 La diversidad florística de Colombia plantea enormes retos de investigación, con miras a una utilización racional e integral de sus recursos forestales.
Morales Soto León +1 more
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Extractos de hojas de tomate Lycopersicon esculentum como
Agronomía Colombiana, 2003 <span style="font-size: small; font-family: Baskerville;"><span style="font-size: small; font-family: Baskerville;"><p align="left">Con el fin de probar la actividad fagoinhibidora</p><p align="left">(disuasora) de extractos
Serna C. Francisco Javier +1 more
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Herbivoría de Atta cephalotes (Hymenoptera: Myrmicinae) sobre tres sustratos vegetales
, 2008 Un estudio reciente sugiere una significativa reducción de la herbivoría de la hormiga arriera, Atta cephalotes, en plantaciones de arboloco (Montanoa quadrangularis (Asteraceae)) asociadas y abonadas con follaje verde de botón de oro (Tithonia diversifolia (Asteraceae)). Estas observaciones plantean un efecto disuasivo de esta planta sobre el forrajeo
RODRÍGUEZ G, JHONATTAN +2 more
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, 2019 The genetic variation between island and mainland populations of the leaf-cutter ant Atta cephalotes have been poorly studied, despite its importance to understand their local migration, regional structure, and the distribution of one of the most abundant species in the neotropics. Objective: To analyze the genetic variation of an insular population of
López, Alejandra +1 more
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Source Distance has No Effect on Load Size in the Leaf-Cutting Ant, Atta Cephalotes
Psyche: A Journal of Entomology, 1991 James K. Wetterer
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Epiphyll deterrence to the leafcutter ant Atta cephalotes
Oecologia, 1991Epiphyll growth on leaves of the grapefruit Citrus paradisi and the understory cyclanth Cyclanthus bipartitus repelled the fungus-growing, leafcutter ant Atta cephalotes from harvesting leaves of these tropical plants. Experimental removal of epiphylls from leaves resulted in 2-3 times more herbivore damage by leafcutter ants as compared to matched ...
Ulrich G Mueller, Mueller Ulrich G
exaly +3 more sources
The Foraging Behaviour of Atta cephalotes L. (Hymenoptera, Formicidae)
Journal of Animal Ecology, 1968J M Cherrett
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Traffic Dynamics of the Leaf‐Cutting Ant,Atta cephalotes
The American Naturalist, 2002Colonies of Atta cephalotes (Myrmicinae: Formicidae) construct cleared paths between their nest and the vegetation sources at which they harvest leaf tissue. Here, we employ ideas from traffic engineering to study streams of laden and unladen ants on these paths.
Martin, Burd +3 more
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Journal of Chemical Ecology, 1996
The chemical composition of the secretions of the metapleural glands of workers and soldiers of twoAtta species,Atta sexdens rubropilosa andA. cephalotes, and workers ofAcromyrmex octospinosus, has been studied. As indicated by infrared spectrometry and confirmed by the ninhydrin test, the secretions contain chiefly proteins.
Ruth R do Nascimento +2 more
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The chemical composition of the secretions of the metapleural glands of workers and soldiers of twoAtta species,Atta sexdens rubropilosa andA. cephalotes, and workers ofAcromyrmex octospinosus, has been studied. As indicated by infrared spectrometry and confirmed by the ninhydrin test, the secretions contain chiefly proteins.
Ruth R do Nascimento +2 more
exaly +3 more sources
Vibrational communication between hitchhikers and foragers in leaf-cutting ants (Atta cephalotes)
Behavioral Ecology and Sociobiology, 1995Abstract In a foraging column of the leaf-cutting ant Atta cephalotes, minim workers (the smallest worker subcaste) “hitchhike” on leaf fragments carried by larger workers. It has been demonstrated that they defend leaf carriers against parasitic phorid flies. The present study examines the cues used by the potential hitchhikers to locate leaf carriers.
Flavio Roces +2 more
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