Kabirul Bashar — новинки

A faunistic study of Odonata (Dragonfly and Damselfly) was carried out in Bangladesh. A total of forty eight (48) species of Odonates belonging to thirty one genera, eight families and two sub-orders were recorded from the sampling areas. Among them, twenty five (25) species of Dragonflies under three families and twenty three (23) species of Damselflies under five families were recorded. The highest and lowest numbers of Odonata species were observed in Jahangirnagar university campus (31 species) and Bandarban (23 species) respectively. The diversity of Odonata species was peak during the post-monsoon season (45 species). Highest numbers of species were identified in Libellulidae family whereas lowest numbers were observed in Gomphidae, Lestidae, Calopterygidae and Protoneuridae family. Rhyothemis variegata was the dominant species (13.03%) of Dragonfly but in Damselfly, Agriocnemis pygmaea was the abundant species (13.97%) among all collected Odonata.

Blood-feeding patterns, Plasmodium infection status and seasonal abundance of Anopheles mosquitoes and their association with environmental factors were studied to incriminate malaria vector mosquitoes in Bangladesh. Thirty one species of Anopheles mosquito were collected from the study areas and their distribution maps were presented in this book. An. baimai, An. minimus s.l., An. annularis, An. jamesii, An. maculatus s.l., and An. pallidus are more or less anthropophilic, whereas the other species are zoophilic. Ten species were found Plasmodium positives; An. annularis, An. baimai, An. barbirostris, An. jeyporiensis, An. karwari, An. kochi, An. minimus s.l., An. peditaeniatus, An. philippinensis and An. vagus. Anopheles vagus and An. philippinensis were found dominant species in Bangladesh present almost throughout the year with major peaks in March and smaller peaks in September but An. baimai and An. willmori were found during monsoon only. Rainfall and temperature were the most significant variables influencing An. baimai, An. willmori, An. vagus, and An. subpictus density in Kumari. Abundance of these four species positively related to malaria cases.