%0 Journal Article
%T Orthopteran diversity at Keraniganj, Dhaka
%A Mahmuda Aktar
%A Md Abdul Alim
%A Md Aminul Islam
%J Bangladesh Journal of Zoology
%D 2018
%R https://doi.org/10.3329/bjz.v46i1.37623
%X This study was conducted to assess the divesity of Orthopteran species at some grasslands and crop fields of Keranigonj upazila in Dhaka district, Bangladesh from April, 2014 to September, 2014. A total of 20 species under 18 genera belonging to 7 families have been recorded. Among them 4 species were more common, 6 species were moderately distributed and 10 species documented as rare. The highest number of Orthopterans was from the family Acrididae 60.58% (10 spp.) followed by Tetrigidae 15.32% (2 spp.), Gryllidae 14.23% (4 spp.), Tettigonidae 10.33% (1 sp.), Locustidae 2.55% (1 sp.), Mantidae 2.55% ( 1 sp.), and the lowest from the family Gryllotalpidae 2.19% (1 sp.). During observation period the number of Orthopterans was highest recorded in the month of May (20.44%) followed by April (19.34%), June (17.52%), July (14.60%), August (14.23%), and the lowest in September (13.87%). Shannon¡¯s diversity index and Simpson¡¯s diversity index represent moderate value (H = 2.82) and moderately low value (¦Ë = 0.07), respectively indicating moderate diversity richness for Orthopteran species. The value of species evenness (E = 0.94) tends to be higher indicating that the species are eventually distributed. Bangladesh J. Zool. 46(1): 21-31, 2018
%K Orthopteara
%K diversity
%K abundance
%K Acrididae
%K Shannon¡¯s index
%K Simpson¡¯s index
%K evenness
%U https://www.banglajol.info/index.php/BJZ/article/view/37623