Data/hora: 09/06/2024 06:19:42

Provedor de dados: 	Revista Brasileira de Entomologia	
País: 	Brazil	
Título: 	Harmonia axyridis: a threat to Brazilian Coccinellidae?	
Autores: 	Martins,Camila B. C.; Almeida,Lúcia M.; Zonta-de-Carvalho,Regina C.; Castro,Camila F.; Pereira,Rosylaine A.	
Data: 	2009-12-01	
Ano: 	2009	
Palavras-chave: 	Aphididae; Intraguild predation; Invasive species; Native species.	
Resumo: 	Harmonia axyridis (Pallas) (Coleoptera, Coccinellidae) is a polyphagous Asian species, well-known as a classical biological control agent of aphids around the world, introduced probably accidentally in Brazil, sampled for the first time in 2002. It is an important intraguild predator, competing for food with native coccinellids. It was studied H. axyridis alimentary sources and host plants, its abundance compared with native and established species, the influence of abiotic factors and the seasons over the abundance of H. axyridis throughout one year, and discussed the mechanisms which influence the displacement of species. Harmonia axyridis was found in 38 plant species, among them 20 were new records, feeding on 20 aphid species, eight of them new alimentary records. Between 2006/2007, eight Coccinellidae species were collected and H. axyridis was the most abundant (91.23%). Harmonia axyridis peak of abundance occurred in August and September 2007, probably influenced by the temperature and food availability. From 1999 to 2007 a reduction and variation in the diversity of collected species of Coccinellidae were observed with the predominance of H. axyridis, which may indicate their displacement.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000400018	
Editor: 	Sociedade Brasileira De Entomologia	
Relação: 	10.1590/S0085-56262009000400018	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Entomologia  v.53 n.4 2009	
Fonte: 	info:eu-repo/semantics/openAccess