influência da temperatura na mortalidade de imaturos de centris (heterocentris) analis (hymenoptera, apidae, centridini) influence of temperature on the immatures mortality of centris (heterocentris) analis (hymenoptera, apidae, centridini)
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2007
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Abstract
Os ninhos de Centris (Heterocentris) analis (Fabricius, 1804) foram estudados no Campus de Ribeirão Preto da Universidade de São Paulo, de janeiro a dezembro de 2003. As fêmeas nidificaram em ninhos-armadilha confeccionados com cartolina preta, os quais foram introduzidos em placas de madeira colocadas em duas áreas distintas: sombreada e ensolarada. Nas duas áreas, a mortalidade de imaturos ocorreu principalmente no estágio de ovo; área sombreada: estágio de ovo (76,7%), estágio de larva (10,0%) e estágio de pupa (13,3%); área ensolarada: estágio de ovo (80,0%), estágio de larva (6,6%) e estágio de pupa (13,3%). A diferença de mortalidade entre as duas áreas (chi2 = 1,0, gl:1, p>0,05) não foi estatisticamente significativa, entretanto, a diferença de temperatura entre os meses nas duas áreas estudadas foi estatisticamente significativa (t-student, p<0,05). Os resultados mostraram também que a temperatura entre 26ºC e 27ºC foi ideal para o desenvolvimento de Centris analis.
Centris (Heterocentris) analis (Fabricius, 1804) nests were studied at the University Campus of Ribeirão Preto, São Paulo, Brazil, from January to December 2003. The females constructed nests in trap-nests made with black cardboard introduced in wood blocks which were placed on the shelves of two shelters built at the study site: sunny area and shady area. In both areas, the immatures mortality occurred mainly in the egg stage; shady area: egg stage (76.7%), larval stage (10.0%) and pupal stage (13.3%); sunny area: egg stage (80.0%), larval stage (6.6%) and pupal stage (13.3%). The mortality difference between the areas (chi2 = 1.0, gl:1, p>0.05) was not great enough to reject the possibility that the difference was due to random sampling variability, however, there were differences of temperature between two areas in all months observed (t-student, p<0.05) and the temperature around 26-27ºC showed to be optimal to Centris analis development.
Centris (Heterocentris) analis (Fabricius, 1804) nests were studied at the University Campus of Ribeirão Preto, São Paulo, Brazil, from January to December 2003. The females constructed nests in trap-nests made with black cardboard introduced in wood blocks which were placed on the shelves of two shelters built at the study site: sunny area and shady area. In both areas, the immatures mortality occurred mainly in the egg stage; shady area: egg stage (76.7%), larval stage (10.0%) and pupal stage (13.3%); sunny area: egg stage (80.0%), larval stage (6.6%) and pupal stage (13.3%). The mortality difference between the areas (chi2 = 1.0, gl:1, p>0.05) was not great enough to reject the possibility that the difference was due to random sampling variability, however, there were differences of temperature between two areas in all months observed (t-student, p<0.05) and the temperature around 26-27ºC showed to be optimal to Centris analis development.
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couto2007iheringia:influncia
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| Authors | ;Ricardo Marques Couto;Evandro Camillo |
| Journal | Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan |
| Year | 2007 |
| DOI |
10.1590/S0073-47212007000100008
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