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- W2201219653 abstract "O efeito da experiencia do predador na eficiencia de predacao foi examinado utilizando estudantes e docentes do curso de Ciencias Biologicas da Universidade de Brasilia. As presas foram larvas de Lepidoptera, folivoras externas, expostas ou em abrigos nas plantas do cerrado de Brasilia. Foram usados tres conjuntos de predadores: 1. Inexperientes – calouros; 2. Experiencia variada – estudantes do 3o ao ultimo semestre do curso; 3. Experientes - docentes e estudantes com experiencia nos projetos com lagartas no campo. A primeira vistoria das plantas marcadas foi feita pelos predadores 1 ou 2 que coletaram todas as larvas encontradas. Logo em seguida as mesmas plantas foram examinadas pelos predadores experientes (grupo 3). Os testes foram feitos em 1998, 2000 e 2003 e, em todos eles, os predadores experientes foram mais eficientes na deteccao de presas, encontrando sempre um numero maior de larvas (27 a 85%) e de plantas com larvas (18 a 76%). Descritores: Eficiencia da predacao. Ensino. Lagartas. Lepidoptera. Learning and efficiency of predation: a teaching approach. Experiments were designed to investigate the effect of the experience on the efficiency of predation by using as “predators” students and lecturers of University of Brasilia, Brazil. The preys were the external folivorous lepidopteran larvae, exposed or inside shelters on plants in the cerrado vegetation. The predators were classified in three groups: 1. Naive – students without experience; 2. Varied experience – including students from the third to the last semester; 3. Experienced – lecturers and students that have had worked with caterpillars in the field. Plants were marked and during the first examination by the predators (1 or 2) all larvae were removed. Soon after that the third predator group examined the same plants and all remaining larvae, on each plant were recorded. This procedure was repeated in 1998, 2000 e 2003, and results were similar. The experienced predators were more efficient in prey detection than the naive ones, encountering always more larvae (27 to 85%) and also more plants with larvae (18 to 76%)." @default.
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- W2201219653 date "2005-12-01" @default.
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- W2201219653 title "Aprendizagem e eficiência da predação: uma abordagem didática" @default.
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