Impact of Climate Change on the Dynamics of Rat House Dust Mites

House Dust mites have been recorded as potential allergens causing allergy in sensitive victims among, over 20% population of India and world. Hence fortnightly, regular study has been undertaken for eight months, from February 2015 to September 2015, to analyze the significant impact of environment on the behavior of population dynamics in Rat house dust mites during  summer and rainy seasons from an educational complex in Kothrud area at Pune. Very encouraging findings have been obtained during this . Echinolaelaps echidninus (Ee-288-78.69%), Haemolaelaps glasgowi (Hg-75-20.49%), Unidentified (U 1 -2-0.56%)and (U 2 -1-0.28%) have been reported in the order of dominance from the total (366) screened specimens, by simple ‘Pickup Technique’ (Jogdand 1988). Highest load 231 (63.1%) has been recorded during rainy season followed by summer 132 (37.5%). Echinolaelaps echidninus (Ee) has been found to be dominant species during rainy 196 (53.55%)  and summer season 92 (26.13%) followed by Haemolaelaps glasgowi (Hg) 35 (9.56%), 40 (11.36%) respectively, which have been recently reported from the rat dust from our laboratory and very few specimens have been reported as unidentified (U 1 )2 (0.56%) and (U 2 )1(0.28%). They may be suspected as potential allergens. Sex wise quantitative estimation of rat house mites revealed dominance of Echinolaelaps echidninus females (35.25%) as compared to Ee males (18.31%) during rainy season and Ee males (15.30%) as compared to females (9.84%) during summer. While Hg males (5.4%) dominated females (3.8%) during rainy season and same percentage contribution of male and female had been obtained during rainy season (5.47%) and showed variable impact on two genera.