Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A new concept for insect damage evaluation based on plant physiological variables Anais da ABC (AABC)
Neves,Ademir D.; Oliveira,Ricardo F.; Parra,José R.P..
The objective of this study was to determine the damage levels caused by Orthezia praelonga Douglas, 1891 and Leucoptera coffeella (Guérin-Mèneville 1842), on rangpur lime and Obatã coffee leaves, respectively. Measurements were based on a new concept for the evaluation of the following plant physiological parameters: photosynthesis, stomatal conductance, leaf temperature and transpiration, and internal concentration of CO2 (by infrared analyzer). A negative correlation between infestation level and photosynthesis was found, where the negative inflexion point of the curve was considered as a reference for damage levels. The control level for O. praelonga is below the 7-13% limit for damaged leaf area (40 to 70 scales per leaf), while for L. coffeella it is...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Photosynthesis; Economic level injury; Citrus; Coffee; Plant-insect interactions.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015
Imagem não selecionada

Imprime registro no formato completo
Ecological aspects of lepidopteran caterpillar parasitoids from Caryocar brasiliense Camb. (Caryocaraceae) in a cerrado sensu stricto of Central Brazil Biota Neotropica
Rodovalho,Sheila Rodrigues; Laumann,Raúl Alberto; Diniz,Ivone Rezende.
This study quantified parasitoid occurrence on five lepidopteran caterpillars species that use Caryocar brasiliense as host plant, trying to verify if there was a direct relationship between host abundance and the proportion of parasitism; if leaf shelters served as cues or protection from parasitoids; if host size influenced the proportion of parasitism, and if attacks by Diptera were more frequent than by Hymenoptera. Searches for external folivorous caterpillars were carried out in an area of cerrado sensu stricto, from July/2003 to June/2004. Caterpillars were more parasitized when occurred on mature leaves. Nola sp. (Noctuiidae) had the highest proportion of parasitism and a negative correlation between their body size and parasitoid attack....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado host plant; Density dependent parasitism; Leaf shelter caterpillars; Plant-insect interactions; Tritrophic interactions; Tropical Lepidoptera.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300026
Imagem não selecionada

Imprime registro no formato completo
Floral-oil-producing Plantaginaceae species: geographical distribution, pollinator rewards and interactions with oil-collecting bees Biota Neotropica
Martins,Aline Cristina; Alves-dos-Santos,Isabel.
Floral oils as reward to pollinators occur in eleven plant families and appeared at least 28 times in the evolutionary history of flowering plants. They are produced in epithelial or tricomatic glands and collected by oil bee visitors. The present paper focuses on floral-oil-producing species of Plantaginaceae, a Neotropical group namely Angelonia clade. This group comprises around 40 described species in the genera Angelonia, Basistemon, Monttea, Monopera and the oil-less Melosperma. We present a revision of all species of the Angelonia clade, their geographical distribution, resources offered to pollinators and records of flower visitors, especially oil-collecting bees. These plants rely only on oil-collecting species in the tribe Centridini and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant-insect interactions; Oil-collecting bees; Oil-flowers; Plantaginaceae; Apidae.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400077
Imagem não selecionada

Imprime registro no formato completo
Fluctuating asymmetry of and herbivory on Poincianella pyramidalis (Tul.) L.P. Queiroz (Fabaceae) in pasture and secondary tropical dry forest Acta Botanica
Ribeiro,Viviane Andrade; Silva,Rosineide Nascimento da; Sousa-Souto,Leandro; Neves,Frederico de Siqueira.
Plants subjected to stressful environments tend to be more asymmetric with reduced defenses and are therefore more vulnerable to herbivory. This study investigates the relationship between herbivory and fluctuating asymmetry (FA) in Poincianella pyramidalis in two contrasting habitat types in the Brazilian caatinga (shrublands). We tested the following hypotheses: that FA occurs in P. pyramidalis; that FA of P. pyramidalis leaves is greater in individuals located in pasture than in those located in secondary tropical dry forest; that herbivory by insects (leaf chewers and leaf miners) increases in parallel with increases in the level of FA; and that herbivory is more common in pasture than in secondary tropical dry forest. In each of the two environments,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Forest regeneration; Leaf miners; Plant-insect interactions; Tropical dry forests.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100003
Imagem não selecionada

Imprime registro no formato completo
How specialists can be generalists: resolving the "parasite paradox" and implications for emerging infectious disease Rev. Bras. Zool.
Agosta,Salvatore J.; Janz,Niklas; Brooks,Daniel R..
The parasite paradox arises from the dual observations that parasites (broadly construed, including phytophagous insects) are resource specialists with restricted host ranges, and yet shifts onto relatively unrelated hosts are common in the phylogenetic diversification of parasite lineages and directly observable in ecological time. We synthesize the emerging solution to this paradox: phenotypic flexibility and phylogenetic conservatism in traits related to resource use, grouped under the term ecological fitting, provide substantial opportunities for rapid host switching in changing environments, in the absence of the evolution of novel host-utilization capabilities. We discuss mechanisms behind ecological fitting, its implications for defining specialists...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Climate change; Coevolution; Ecological fitting; Host shift; Plant-insect interactions; Sloppy fitness.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200001
Imagem não selecionada

Imprime registro no formato completo
Insect galls in Rupestrian field and Cerrado stricto sensu vegetation in Caetité, Bahia, Brazil Biota Neotropica
Vieira,Leir Guimarães; Nogueira,Ravena Malheiros; Costa,Elaine Cotrim; Carvalho-Fernandes,Sheila Patrícia; Silva,Juliana Santos.
Abstract: We investigated insect galls in Rupestrian field and Cerrado vegetation in the municipality of Caetité (BA), Brazil, between August/2015 and June/2016. This is the first study of gall diversity in Rupestrian field vegetation in that state. We encountered 48 different morphotypes of galls, distributed among 17 different plant species belonging to 13 genera and 21 host plant families. The greatest gall richness was observed in Cerrado (n=39) as compared to Rupestrian field (n=9) vegetation. The principal botanical families observed with galls were Leguminosae, Malpighiaceae, and Myrtaceae, with 10, 8 and 4 morphotypes, respectively. The genera showing the greatest gall diversity were Copaifera L. (n=6) (Leguminosae-Detarioideae), Croton L. (n=2)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gall-inducing insects; Plant-insect interactions; Northeastern Brazil; Semiarid region.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200310
Imagem não selecionada

Imprime registro no formato completo
Occurrence and characterization of entomogenic galls in an area of Cerrado sensu stricto and Gallery forest of the state of Bahia, Brazil Anais da ABC (AABC)
SILVA,APARECIDA RAVENE F. DA; NOGUEIRA,RAVENA M.; COSTA,ELAINE C.; CARVALHO-FERNANDES,SHEILA P.; SANTOS-SILVA,JULIANA.
Abstract We surveyed insect galls in an area of Cerrado sensu stricto and Gallery forest in the municipality of Caetité (BA) to contribute to current knowledge of the local flora and its associated gall-inducing insects. Monthly collections were made between February/2015 and January/2016, totaling 12 field campaigns (involving two or three people and lasting four hours) that followed an established path through the countryside. A total of 63 gall morphotypes were identified on 47 host plant species belonging to 22 families; 17 morphotypes were found in the Gallery forest and 46 in Cerrado vegetation. The plant families showing the greatest gall richness were Leguminosae (n=15), Myrtaceae (n=9), and Asteraceae (n=7). The species with the greatest number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cecidomyiidae; Plant-insect interactions; Leguminosae; Semiarid.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602903
Imagem não selecionada

Imprime registro no formato completo
Parámetros de las interacciones planta-herbívoros-enemigos naturales en Schoepfia schreberi J. F. GMEL. (Olacaceae): el fruto es el detalle. Colegio de Postgraduados
López Ortega, Maurilio.
En este trabajo se describe de manera general las interacciones de las especies de herbívoros asociados a los frutos de Schoepfia schreberi (Olacaceae). La investigación se llevó a cabo en tres sitios experimentales durante tres años (2009-2011). Los arbustos de S. schreberi producen frutos de enero a mayo, periodo en el que se establecen relaciones directas e indirectas por el uso de sus frutos entre la mosca de la fruta Anastrepha spatulata (Diptera: Tephritidae), dos especies de palomillas; Coleotechnites sp. (Lepidoptera: Gelechiidae) y una especie de tortricido no identificada, y dos especies de hemípteros Ramosiana insignis y Vulcirea violacea (Hemiptera-Heteroptera: Pentatomidae). Con A. spatulata y las palomillas se evaluó la acción de diversas...
Palavras-chave: Anastrepha spatulata; Relaciones planta-insecto; Depredación de frutos y semillas; Coleotechnites; Parasitoides; Coexistencia; Búsqueda de hospedero; Preferencia de oviposición; Repartición del recurso; Botánica; Doctorado; Plant-insect interactions; Fruit-seed predators; Parasitoids; Species coexistence; Host-finding behavior; Oviposition preference; Resource sharing.
Ano: 2012 URL: http://hdl.handle.net/10521/1768
Registros recuperados: 8
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional