Overwintering Areas
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil
The boll weevil causes serious damage to the cotton crop in South America. Several studies have been published on this pest, but its phenology and behavior under the tropical conditions prevailing in Brazil are not well-known. In this study the feeding behavior and main food sources of adult boll weevils throughout the year in Central Brazil was investigated
Neotropical Entomology. Publicado em: 2010-02
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2. OCORRÊNCIA, DISTRIBUIÇÃO ESPAÇO-TEMPORAL E FLUTUAÇÃO DA POPULAÇÃO DE PERCEVEJOS PENTATOMÍDEOS EM SUCESSÕES CULTURAIS SOB PIVÔ CENTRAL E ÁREAS ADJACENTES / OCURRENCE, SPATIAL AND TEMPORAL DISTRIBUTION OF STINK BUGS (PENTATOMIDAE) POPULATION IN CROPS SUCCESSIONS UNDER CENTER PIVOT AND ADJACENT AREAS
Os percevejos pentatomídeos são pragas de soja, milho, trigo e outras culturas. Economicamente, seu manejo é fundamental e o conhecimento do comportamento de suas populações é necessário para planejar medidas de ação eficientes. O objetivo desta pesquisa foi verificar a ocorrência, distribuição espaço-temporal e flutuação da população de esp
Publicado em: 2010
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3. SPATIAL AND TEMPORAL DISTRIBUTION OF SOYBEAN STINK BUG AND BEHAVIOR OF Piezodorus guildinii (WESTWOOD, 1837) (HEMIPTERA: PENTATOMIDAE) ON SOYBEAN (Glycine max (L.) MERRILL) ON DAY TIME / DISTRIBUIÇÃO ESPACIAL E TEMPORAL DE PERCEVEJOS DA SOJA E COMPORTAMENTO DE Piezodorus guildinii (WESTWOOD, 1837) (HEMIPTERA: PENTATOMIDAE) NA SOJA (Glycine max (L.) MERRILL) AO LONGO DO DIA
From december 2006 to april 2008 was conducted a experiment at Universidade Federal de Santa Maria, Santa Maria, RS, Brasil, with objective to verify spatial and temporal distribution of soybean stink bug, with georeferenced surveying. The samplings was accomplished in area of 6,64 hectares of soybean (Glycine max (L.) Merrill), it was divided in a sample gr
Publicado em: 2009
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4. Modeling current and future potential wintering distributions of eastern North American monarch butterflies
Monarch butterflies overwinter in restricted areas in montane oyamel fir forests in central Mexico with specific microclimates that allow the butterflies to survive for up to 5 months. We use ecological niche modeling (ENM) to identify areas adequate for overwintering monarch colonies under both current and future climate scenarios. The ENM approach permits
National Academy of Sciences.
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5. Avian migration phenology and global climate change
There is mounting evidence that global climate change has extended growing seasons, changed distribution patterns, and altered the phenology of flowering, breeding, and migration. For migratory birds, the timing of arrival on breeding territories and over-wintering grounds is a key determinant of reproductive success, survivorship, and fitness. But we know l
National Academy of Sciences.
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6. Bacillus thuringiensis-toxin resistance management: Stable isotope assessment of alternate host use by Helicoverpa zea
Data have been lacking on the proportion of Helicovera zea larvae that develop on noncotton host plants that can serve as a refuge from selection pressure for adaptation to transgenic cotton varieties that produce a toxin from the bacterium Bacillus thuringiensis. We found that individual H. zea moths that develop as larvae on cotton and other plants with C3
National Academy of Sciences.