Results: 29

Fruit color preference by birds and applications to ecological restoration

Braz. j. biol; 76 (4), 2016
Abstract Ecological restoration aims to retrieve not only the structure but also the functionality of ecosystems. Frugivorous birds may play an important role in this process due to their efficiency in seed dispersal. Color perception in these animals is highly developed, and then the colors of fleshy fr...

Frugivory and seed dispersal of Solanum granuloso-leprosum Dunal (Solanaceae) by birds in deciduous seasonal forest

Braz. j. biol; 76 (4), 2016
Abstract The goal of this study was to identify which bird species consume Solanum granuloso-leprosum fruits and disperse its seeds. 60 hours of focal observations were carried out between April and May 2006 on the edge of a deciduous forest fragment in the Uruguay River region, Rio Grande do Sul state, ...

Traditional knowledge and uses of the Caryocar brasiliense Cambess. (Pequi) by “quilombolas” of Minas Gerais, Brazil: subsidies for sustainable management

Braz. j. biol; 76 (2), 2016
Abstract Local knowledge of biodiversity has been applied in support of research focused on utilizing and management of natural resources and promotion of conservation. Among these resources, Pequi (Caryocar brasiliense Cambess.) is important as a source of income and food for communities living in the C...

Resource allocation in Copaifera langsdorffii (Fabaceae): how supra-annual fruiting affects plant traits and herbivory?

Rev. biol. trop; 64 (2), 2016
AbstractPlants have limited resources to invest in reproduction, vegetative growth and defense against herbivorous. Trade-off in resources allocation promotes changes in plant traits that may affect higher trophic levels. In this study, we evaluated the trade-off effect between years of high and low frui...

Interactions between frugivorous bats (Chiroptera: Phyllostomidae) and Piper tuberculatum (Piperaceae) in a tropical dry forest in Valle del Cauca, Colombia

Rev. biol. trop; 64 (2), 2016
AbstractIn any ecosystem, fruits are resources that vary in time and space as well as in nutritional content. Coexistence of species from a trophic guild depends on the division and use of resources. Therefore, the organisms that depend on them as a food source, tend to show a certain degree of specializ...

Dendrophysiological plant strategies of Poincianella pyramidalis (Tul.) L.P. Queiroz after wood herbivory in semiarid region of Paraíba - Brazil

Acta sci., Biol. sci; 38 (2), 2016
The increase in Equus africanus asinus Linnaeus population in semiarid areas of Northeast Brazil had significant impacts on wild and rural areas. The objective of this work was to analyze the herbivory of E. africanus asinus on Poincianella pyramidalis (Tul). L.P. Queiroz and determine the dendrophysiolo...

Peces marinos de la Reserva Biológica Isla del Caño: Estructura de las comunidades de peces de arrecife y lista taxonómica actualizada de los peces costeros

Rev. biol. trop; 63 (supl.1), 2015
Resumen El presente trabajo tuvo como objetivos 1) Describir la estructura de la comunidad de peces de arrecife de la Isla del Caño y 2) Completar una lista de las especies de peces costeros registrados hasta el día de hoy. Para el primer objetivo, se realizaron 50 censos de cilindro en 10 lugares alre...

Essential oils from two Eucalyptus from Tunisia and their insecticidal action on Orgyia trigotephras (Lepidotera, Lymantriidae)

Biol. Res; 47 (), 2014
BACKGROUND: Essential oils extracted from aromatic and medicinal plants have many biological properties and are therefore an alternative to the use of synthetic products. The chemical composition of essential oils from two medicinal plants (Eucalyptus globulus and E. lehmannii) was determined and, their ...

Influências de Atta spp. (Hymenoptera: Formicidae) na recuperação da vegetação pós-fogo em floresta de transição amazônica

Acta amaz; 42 (1), 2012
Este estudo investigou o papel das saúvas na recuperação da vegetação pós-fogo. Foi hipotetizado que a perturbação do fogo aumenta a abundância de ninhos de saúva (1) e as atividades de remoção de sementes (2) e desfolha (3), especialmente no ambiente de borda. Os ninhos de saúva foram inven...