Data/hora: 10/06/2024 10:23:10

Provedor de dados: 	92	
País: 	Brazil	
Título: 	Surface swimming behavior of the curculionid Ochetina uniformis Pascoe (Erirhininae, Stenopelmini) and Ludovix fasciatus (Gyllenhal) (Curculioninae, Erodiscini)	
Autores: 	Sousa,Wesley Oliveira de; Marques,Marinêz Isaac; Rosado-Neto,Germano Henrique; Adis,Joachim.	
Data: 	2007-03-01	
Ano: 	2007	
Palavras-chave: 	Aquatic/semi-aquatic weevils; Behavioral adaptation; Central Amazonia; Pantanal Mato-grossense.	
Resumo: 	The swimming behavior exhibited by specimens of L. fasciatus and O. uniformis was analyzed frame-by-frame with video observation recorded with a digital camera, attached to a stereomicroscope. Adults of O. uniformis, an aquatic insect, swim with all three pairs of legs. During the process of swimming the majority of the abdomen and rostrum remain submerged, part of the fore and hind tibiae remain above the surface, while the mid tibiae remain submerged. The mesothoracic legs, during the power-stroke stage, provide the greatest thrust while the metathoracic legs provide the least forward propulsion. The prothoracic legs, extended forward, help to direct the swimming. The semi-aquatic specie L. fasciatus shows the same swimming style as O. uniformis, that is, with movement of all the three pairs of legs; the mesothoracic legs are responsible for the main propulsion. The insect body remains on the water surface during the process of swimming, while the legs remain submerged. Both species complete a swimming cycle in 0.33 and 0.32 seconds, respectively, with an average speed of 1.38 cm/s and a maximum and minimum swimming duration time of 11.15 and 5.05 minutes, respectively, for L. fasciatus. The swimming behavior exhibited by O. uniformis and L. fasciatus corresponds to the style known as a breast strokelike maneuver. This is the first record of this kind of swimming for both species here observed and increases to seven the number of genera of Curculionidae exhibiting this behavior.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000100015	
Editor: 	Sociedade Brasileira De Entomologia	
Relação: 	10.1590/S0085-56262007000100015	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Entomologia  v.51 n.1 2007	
Fonte: 	info:eu-repo/semantics/openAccess