Results 121 to 130 of about 45,828 (244)

Flower trade-offs derived from nectar investment in female reproduction of two Nicotiana species (Solanaceae)

open access: yesActa Botânica Brasílica
Animal-pollinated flowers may orient resources for competing activities, such as nectar production for attracting flower visitors but then saving nectar (through inhibiting nectar production or by final resorption) for the subsequent maturation of fruits
Leonardo Galetto   +5 more
doaj   +1 more source

Efecto del consumo de jugos en polvo, néctar y concentrado de pulpa, en un modelo experimental de caries, in vitro [PDF]

open access: yes, 2015
41 p.Objetivo: Si bien se ha estudiado el efecto que produce el consumo de jugos azucarados sobre las superficies dentarias, se desconoce los cambios fisiológicos que estos producen en el medio y en el biofilm oral.
Díaz Garrido, Natalia (Prof. Informante)   +2 more
core  

Using artificial neural networks to explain the attraction of jewel beetles (Coleoptera: Buprestidae) to colored traps

open access: yesInsect Science, EarlyView.
Jewel beetles can discriminate leaf feeding sites and bark oviposition sites based upon the opponent comparison of their blue, green, and red photoreceptor signals. Through this mechanism, green traps resemble leaves, and purple traps resemble bark, explaining their different attractiveness to males and females.
Roger D. Santer, Otar Akanyeti
wiley   +1 more source

Comportamento forrageiro da abelha africanizada Apis mellifera L. no decorrer do ano = Behavior forage of Africanized honey bees

open access: yesActa Scientiarum: Animal Sciences, 2011
O objetivo deste experimento foi estudar o comportamento forrageiro das abelhas africanizadas Apis mellifera, no decorrer do ano. As coletas foram realizadas na área experimental do Centro Universitário Moura Lacerda, Ribeirão Preto, Estado de São Paulo.
Darclet Teresinha Malerbo-Souza   +1 more
doaj  

Insights on the nutritional ecology of a nocturnal pollinating insect

open access: yesInsect Science, EarlyView.
Nutritional ecology examines the environmental effects on nutritional needs, food intake and foraging behaviors, and the use of nutrients ingested by animals. Among insects, Lepidoptera are often considered opportunistic foragers that visit a wide variety of available flowers, although with some preferences.
Evan Force   +4 more
wiley   +1 more source

Desarrollo del Cultivo del Higo (Ficus Carica) para Consumo Fresco y Procesado, como una Alternativa de Diversificación para el Sector Agrícola [PDF]

open access: yes, 2007
Proyecto de Investigación. Instituto Tecnológico de Costa Rica. Vicerrectoría de Investigación y Extensión (VIE). Escuela de Biología. Centro de Investigación en Biotecnología (CIB), 2007Con este proyecto de investigación, lo que se pretende en ...
Flores-Mora, Dora María   +1 more
core  

Exploring marking methods for the predatory hoverfly Sphaerophoria rueppellii (Diptera: Syrphidae)

open access: yesInsect Science, EarlyView.
As important pollinators and predators of aphids, hoverflies play an important role in ecosystems. This study focuses on identifying the best marking technique for the model species Sphaerophoria rueppellii that can be used to track hoverfly feeding and oviposition sites, evaluating three methods: rubidium (RbCl), fluorescein, and fluorescent dusts ...
Michele Violi   +4 more
wiley   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

open access: yesInsect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean   +6 more
wiley   +1 more source

A preventive strategy for the control of aphids in sweet pepper using lacewings and micrococcinelid beetles

open access: yesInsect Science, EarlyView.
Aphids pose a serious risk to horticultural crops. Current biocontrol strategies often fail due to the poor establishment of natural enemies when aphids are scarce. We evaluated the potential of two aphidophagous predators, Micromus variegatus and Scymnus interruptus, to be used as preventive biocontrol agents, released before aphid infestation.
Jesica Pérez‐Rodríguez   +3 more
wiley   +1 more source

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