Methodological approach to assess biodiversity in agro ecosystems: A case study

• Autor(a) principal: Tavares,Catarina
• Data de Publicação: 2013
• Outros Autores: Gouveia,Ana F., Crespo,Luís, Mateus,Célia, Rebelo,M. Teresa
• Tipo de documento: Relatório
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2013000300007
• topic: Higher taxa surrogacy; pear orchards; spiders

In agroecosystems, the evaluation of biodiversity is extremely important given its relation with their sustainability, however it is a difficult and expensive task. The use of the higher taxa surrogacy has been proposed as an effective and less expensive way to assess biodiversity, but is still being used mainly in natural, more stable, ecosystems. In this study, we tested the use of the higher taxa surrogacy approach for spiders in pear orchards, under different production systems, in the “Oeste” region of Portugal. Spiders were chosen for this case study, since they are important predators, acting as biological control agents in agroecosystems. We concluded that genus can be used as a higher taxa surrogate of species richness with a good accuracy.