Results 71 to 80 of about 19,504 (188)

Evaluating endophyte‐rich leaves and leaf functional traits for protection of tropical trees against natural enemies

open access: yesFunctional Ecology, Volume 39, Issue 2, Page 371-389, February 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants use physical barriers and chemical compounds to defend themselves against natural enemies. For instance, tough leaves are considered to be better defended than soft leaves, part of a spectrum of defences defined by functional traits such as leaf chemistry ...
Bolívar Aponte Rolón   +3 more
wiley   +1 more source

Interference of β-eudesmol in nestmate recognition in Atta sexdens rubropilosa (Hymenoptera: Formicidae)

open access: yes, 2008
Leaf-cutter ant species (Atta spp.) are key pests of cultivated crops in the Neotropics, and recent studies have demonstrated that workers of Atta spp., particularly of Atta sexdens rubropilosa, exhibit aggressive behavior among nestmates when in contact
Marinho, C.G.S.   +5 more
core   +1 more source

Bimodal alarm signals modulate responses to monomodal alarm signals in Camponotus modoc carpenter ants

open access: yesInsect Science, Volume 32, Issue 1, Page 343-355, February 2025.
Distressed Camponotus modoc carpenter ants emit alarm pheromone and produce vibratory alarm signals. Presented as a monomodal signal, the pheromone attracts nestmates, whereas vibratory signals cause nestmates to “freeze” or to run fast. Sensing a bimodal signal complex, nestmates are less attracted to pheromone but stay “frozen” longer which seems ...
Asim Renyard, Gerhard Gries
wiley   +1 more source

Musa acuminata pseudostem extract on the control of Atta sexdens rubropilosa

open access: yesBioscience Journal, 2019
Currently, few active principles are authorized by the forest certification for the control of insect pests, with which it is necessary to develop new products, mainly aiming at lower environmental impact. The plants are able to develop substances called secondary metabolites, widely studied as an alternative form of pest control.
da Silva, Thais Cibeli   +3 more
openaire   +5 more sources

Atta sexdens Linnaeus 1758

open access: yes, 2007
sexdens (Linnaeus 1758). Caaguazú, Canindeyú, Central, Cordillera, Misiones, Paraguarí, San Pedro, “Guañayos” (Dept. unknown) “ Paraguay ” (s. loc.) (ALWC, IFML, INBP, LACM, MCSN, MHNG, MZSP, NHMB, NHMW, USNM). Literature records: Alto Paraná, Caaguazú, Caazapá, Canindeyú, Central, Concepción, Cordillera, Guairá, Itapúa, Misiones, Ñeembucú, Paraguarí ...
openaire   +1 more source

Common ant species dominate morphospace: unraveling the morphological diversity in the Brazilian Amazon Basin

open access: yesEcography, Volume 2024, Issue 11, November 2024.
Rare plant and vertebrate species have been documented to contribute disproportionately to the total morphological structure of species assemblages. These species often possess morphologically extreme traits and occupy the boundaries of morphological space.
Joudellys Andrade‐Silva   +7 more
wiley   +1 more source

ATIVIDADE ANTIMICROBIANA DE SUBSTÂNCIAS GLANDULARES DE Atta sexdens (HYMENOPTERA: FORMICIDAE) [PDF]

open access: yes
As a defense strategy, Atta ants evolved with the production of glandular secretions that act as antibiotics. In this context, the aim of this study was to evaluate the antimicrobial activity of glandular secretions from Atta sexdens specie.
Dal Magro, Jacir   +6 more
core   +1 more source

Eficiência de isca formicida aplicada sobre o monte de terra solta de ninhos de Atta sexdens rubropilosa (Hymenoptera: Formicidae) [PDF]

open access: yesRevista Árvore, 2003
Avaliou-se a eficiência de uma isca granulada à base de sulfluramida (0,3%) aplicada em olheiros situados sobre o monte de terra solta, em comparação com o sistema convencional de aplicação nos olheiros fora desses montes, no combate a Atta sexdens ...
Ronald Zanetti   +3 more
doaj   +1 more source

Conteúdo energético das operárias da formiga cortadeira, Atta sexdens [PDF]

open access: yesCiência Rural, 2013
O conhecimento do conteúdo energético das operárias é essencial para mensurar a disponibilidade energética, responsável pela manutenção e execução de atividades essenciais para o crescimento da colônia de formigas. Mas pouco se conhece sobre o conteúdo energético das operárias e quanto estará disponível para realizar atividades de, por exemplo, escavar
Camargo, Roberto da Silva   +2 more
openaire   +6 more sources

Antennal chemoreceptors in the European ectoparasitoid Sclerodermus cereicollis (Hymenoptera: Bethylidae)

open access: yesMicroscopy Research and Technique, Volume 87, Issue 10, Page 2275-2291, October 2024.
An evident sexual dimorphism concerning antennae length, types, number, and distribution of chemosensilla is shown. Long sensilla basiconica are present in females and could play a role in the host location and/or maternal care. Multiporous sensilla chaetica, longer and mostly represented in males, could play a role in intraspecific relationships ...
Paolo Masini   +4 more
wiley   +1 more source

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