نتایج جستجو برای: larval habitats

تعداد نتایج: 52688  

Journal: :International journal of biometeorology 2012
Hamady Dieng G M Saifur Rahman A Abu Hassan M R Che Salmah Tomomitsu Satho Fumio Miake Michael Boots Abubakar Sazaly

Larvae of Aedes albopictus Skuse typically inhabit natural and artificial containers. Since these larval habitats are replenished by rainfall, Ae. albopictus may experience increased loss of immature stages in areas with high levels of rainfall. In this study, we investigated the effects of rainfall and container water level on population density, and oviposition activity of Ae. albopictus. In ...

2005
RANDALL M. CLARAMUNT DANIEL E. SHOUP DAVID H. WAHL

—Understanding sampling effectiveness is critical to gear selection and the determination of larval fish dynamics. We evaluated bow-mounted push nets for collecting larval fish across reservoirs and habitats and compared them with traditional tow nets. By means of a pushed 0.5-m-diameter conical net and towed 0.5-m-diameter and 0.75-m-diameter conical nets, ichthyoplankton samples were taken du...

Journal: :BMC Public Health 2006
Michael J Vanek Bryson Shoo Deo Mtasiwa Michael Kiama Steven W Lindsay Ulrike Fillinger Khadija Kannady Marcel Tanner Gerry F Killeen

BACKGROUND As the population of Africa rapidly urbanizes it may be possible to protect large populations from malaria by controlling aquatic stages of mosquitoes. Here we present a baseline evaluation of the ability of community members to detect mosquito larval habitats with minimal training and supervision in the first weeks of an operational urban malaria control program. METHODS The Urban...

2003
Jay R. Rooker George D. Dennis Denis Goulet

The applicability of a nightlight lift-net for sampling ichthyoplankton assemblages was evaluated in inshore habitats off southwestern Puerto Rico. The effects of lunar periodicity, habitat, light duration, and gear type (nightlight vs. plankton tow) were investigated. Overall, 36 piscine taxa were collected with the nightlight lift-net from inshore habitats (i.e. coral reef, mangroves, seagras...

2011
S Azari-Hamidian

BACKGROUND Ecological data are important in the vector control management of mosquitoes. There is scattered published information about the larval habitat characteristics and ecology of the genus Anopheles (Diptera: Culicidae) in Iran and most of available data is in relation to malaria vectors in southern Iran. METHODS This cross sectional investigation was carried out to study the mosquito ...

Journal: :The American journal of tropical medicine and hygiene 2007
Guofa Zhou Stephen Munga Noboru Minakawa Andrew K Githeko Guiyun Yan

Information on the spatial relationships between disease vectors and environmental factors is fundamental to vector-borne disease control. Although it is well known that mosquito abundance is associated with the amount of rainfall and thus the number of larval breeding sites, the spatial relationship between larval habitat availability and adult mosquito abundance is not clear. We investigated ...

2000
D. Hay

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Journal: :Journal of vector borne diseases 2011
Sarfarazul Haq Rajpal S Yadav

BACKGROUND & OBJECTIVES Certain indigenous fish can play potential role in vector control. The study recorded distribution of Aphanius dispar (Rüppell) in its native habitats in Gujarat, India and evaluated its larval propensity for Indian mosquito vectors. METHODS Fishes were surveyed in various districts of Gujarat and samples were collected from coastal habitats and were identified to spec...

2009
Laith Yakob Guiyun Yan

Integrated vector management for malaria control has received a lot of recent interest. Attacking multiple points in the transmission cycle is hoped to act synergistically and improve upon current single-tool interventions based on the use of insecticide-treated bed nets (ITNs). In the present study, we theoretically examined the application of larval habitat source reduction with ITNs in reduc...

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