Consulta: subjectFacets:"Tri-trophic interactions"
Registros recuperados: 2
Data/hora: 02/06/2024 09:45:46

Does Bt maize cultivation affect the non-target insect community in the agro ecosystem?
Provedor de dados: 92
Autores: Resende,Daniela Chaves; Mendes,Simone Martins; Marucci,Rosangela C.; Silva,Alessandra de Carvalho; Campanha,Mônica Matoso; Waquil,José Magid.
ABSTRACT The cultivation of genetically modified crops in Brazil has led to the need to assess the impacts of this technology on non-target species. Under field conditions, the potential effect on insect biodiversity was evaluated by comparing a homogeneous corn field with conventional and transgenic maize, expressing different Bt proteins in seven counties of Minas Gerais, Brazil. The richness pattern of non-target insect species, secondary pests and natural enemies were observed. The results do not support the hypothesis that Bt protein affects insect biodiversity. The richness and diversity data of insects studied were dependent on the location and other factors, such as the use of insecticides, which may be a major factor where they are used.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biosafety; GM maize; Tri-trophic interactions; Integrated pest management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000100082

Occurrence of Amblycerus species in Cordia trichotoma seeds and their influence on germination
Provedor de dados: 92
Autores: Fleck,Marciane Danniela; Costa,Ervandil Corrêa; Araujo,Maristela Machado; Schoeninger,Karine; Machado,Leonardo Mortari; Silva,Jéssica Maus da; Pedron,Leandra; Machado,Dayanna do Nascimento; Boscardin,Jardel.
ABSTRACT Forest species can have their seeds damaged by granivorous insects, especially by those in their larval stage. In this context, this study aims to report the occurrence of Amblycerus species in Cordia trichotoma seeds, to describe their main damage to seeds and effects on germination, as well as their associated hymenopteran parasitoids. Therefore, seven trees were selected in the municipality of Taquaruçu do Sul, RS, Brazil. Fruits were collected weekly from the medium third of the tree crown, from the beginning of their formation until total dehiscence. To examine the damage caused by granivorous insects within the fruits, 15 fruits from each tree were sectioned with a scalpel. Furthermore, 10 fruits from each tree were stored individually in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boraginaceae; Bruchinae; Forest entomology; Tri-trophic interactions.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000300212