Comparison of automatic traps to capture mosquitoes (Diptera: Culicidae) in rural areas in the tropical Atlantic rainforest

Abstract

In several countries, surveillance of insect vectors is accomplished with automatic traps. This study addressed the performance of Mosquito Magnet® Independence (MMI) in comparison with those of CDC with CO2 and lactic acid (CDC-A) and CDC light trap (CDC-LT). The collection sites were in a rural region located in a fragment of secondary tropical Atlantic rainforest, southeastern Brazil. Limatus durhami and Limatus flavisetosus were the dominant species in the MMI, whereas Ochlerotatus scapularis was most abundant in CDC-A. Culex ribeirensis and Culex sacchettae were dominant species in the CDC-LT. Comparisons among traps were based on diversity indices. Results from the diversity analyses showed that the MMI captured a higher abundance of mosquitoes and that the species richness estimated with it was higher than with CDC-LT. Contrasting, difference between MMI and CDC-A was not statistically significant. Consequently, the latter trap seems to be both an alternative for the MMI and complementary to it for ecological studies and entomological surveillance.

Effectiveness of Mosquito Magnet® trap in rural areas in the southeastern tropical Atlantic Forest

“…Similar results were observed by Brown et al (2008) and Dusfour et al (2010) when comparing the performance of different models of MM with the CDC trap. Recently, de Sá and Sallum (2013) obtained similar results by employing the set of traps in different locations and with lower sampling effort.…”

“…The efficiency of CDC traps associated with attractants and of CDC-LT has been proved by the results of several studies ( Forattini et al 1991 , Hutchings et al 2005 , 2013 , Montes 2005 , Laporta & Sallum 2011 ). Furthermore, these traps are considered effective tools for sampling mosquitoes ( Cardoso et al 2011, d , de Sá & Sallum 2013 ). The performance of different models of Mosquito Magnet ® (MM) (Woodstream Corporation, USA) for sampling mosquitoes has been compared with that of other collection methods, including that of human attraction.…”

“…The performance of different models of Mosquito Magnet ® (MM) (Woodstream Corporation, USA) for sampling mosquitoes has been compared with that of other collection methods, including that of human attraction. As a result, distinct models of MM have shown good performance for sampling mosquito populations under different environmental and climate conditions ( Pucci et al 2003 , Brown et al 2008 , Xue et al 2008 , Kitau et al 2010 , Morrow et al 2010 , Hiwat et al 2011a , Jawara et al 2011 , Missawa et al 2011, d , de Sá & Sallum 2013 ).…”

“…The performance of the model Mosquito Magnet ® Independence (MMI) has been addressed in two previous studies conducted in areas on the Brazilian Atlantic Forest coast. In the first, de Sá and Sallum (2013) assessed the effectiveness of MMI in comparison to those of the CDC with CO 2 and Lurex ® (CDC-A) and with CDC-LT in three rural areas. A second study was conducted in an area of preserved forest ( Chaves et al 2014 ), employing the same sampling methods and traps utilised by de Sá and Sallum (2013) .…”

“…In the first, de Sá and Sallum (2013) assessed the effectiveness of MMI in comparison to those of the CDC with CO 2 and Lurex ® (CDC-A) and with CDC-LT in three rural areas. A second study was conducted in an area of preserved forest ( Chaves et al 2014 ), employing the same sampling methods and traps utilised by de Sá and Sallum (2013) . The results of both studies have confirmed that the effectiveness of the MMI is higher than that of CDC traps whether with or without attractants.…”