Species diversity and interspecific associations among mosquitoes in rice agro-ecosystem of Kheda district, Gujarat.

Rice agro-ecosystem of Kheda district in Central Gujarat was inhabited by 14 species of anophelines and 15 species of culicines. Anopheles subpictus and Culex vishnui gr dominated the respective groups. Species diversity in rice fields as well as in associated habitats remained high during non-monsoon (rabi) period. There existed several positive and negative interspecific associations. Malaria vector An. culicifacies showed positive association with An. subpictus, An. annularis, An. pallidus and Cx. quinquefasciatus but was found negatively associated with An. nigerrimus, Cx. vishnui and Cx. tritaeniorhynchus.