TY - JOUR
T1 - Temperature-dependent development and reproductive traits of Tetranychus macfarlanei (Acari: Tetranychidae).
AU - Ullah, Mohammad Shaef
AU - Haque, Md. Ahsanul
AU - Nachman, Gösta
AU - Gotoh, Tetsuo
PY - 2012/4
Y1 - 2012/4
N2 - Development and reproductive traits of Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae) were investigated on kidney bean, Phaseolus vulgaris L., at eleven constant temperatures. Tetranychus macfarlanei was able to develop and complete its life cycle at temperatures ranging from 17. 5 to 37. 5°C. At 15 and 40°C, a few eggs (2-4%) hatched but further development was arrested. Development from egg to adult was slowest at 17. 5°C and fastest at 35°C for both females and males. Using Ikemoto and Takai's linear model, the estimated lower developmental thresholds for egg-to-female adult, egg-to-male adult and egg-to-egg development were 12. 9-13. 0°C. The thermal constants for the respective stages were 110. 85, 115. 99 and 125. 32 degree-days (DD). The intrinsic optimum temperatures (T Φ) calculated by non-linear SSI model were determined as 24. 4, 24. 4 and 24. 2°C for egg-to-female adult, egg-to-male adult and egg-to-egg development, respectively. The net reproductive rate (R 0) was highest at 25°C (167. 4 females per female) and lowest at 17. 5°C (42. 6 females per female). The intrinsic rate of natural increase, r m, increased linearly with the rising of temperature from 0. 102 at 17. 5°C to 0. 441 day -1 at 35°C. These values suggested that T. macfarlanei could be growing quickly in response to increasing temperatures from 17. 5 to 35°C and provide a basis for predicting its potential geographical range.
AB - Development and reproductive traits of Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae) were investigated on kidney bean, Phaseolus vulgaris L., at eleven constant temperatures. Tetranychus macfarlanei was able to develop and complete its life cycle at temperatures ranging from 17. 5 to 37. 5°C. At 15 and 40°C, a few eggs (2-4%) hatched but further development was arrested. Development from egg to adult was slowest at 17. 5°C and fastest at 35°C for both females and males. Using Ikemoto and Takai's linear model, the estimated lower developmental thresholds for egg-to-female adult, egg-to-male adult and egg-to-egg development were 12. 9-13. 0°C. The thermal constants for the respective stages were 110. 85, 115. 99 and 125. 32 degree-days (DD). The intrinsic optimum temperatures (T Φ) calculated by non-linear SSI model were determined as 24. 4, 24. 4 and 24. 2°C for egg-to-female adult, egg-to-male adult and egg-to-egg development, respectively. The net reproductive rate (R 0) was highest at 25°C (167. 4 females per female) and lowest at 17. 5°C (42. 6 females per female). The intrinsic rate of natural increase, r m, increased linearly with the rising of temperature from 0. 102 at 17. 5°C to 0. 441 day -1 at 35°C. These values suggested that T. macfarlanei could be growing quickly in response to increasing temperatures from 17. 5 to 35°C and provide a basis for predicting its potential geographical range.
U2 - 10.1007/s10493-012-9523-3
DO - 10.1007/s10493-012-9523-3
M3 - Journal article
C2 - 22382712
SN - 0168-8162
VL - 56
SP - 327
EP - 344
JO - Experimental & Applied Acarology
JF - Experimental & Applied Acarology
IS - 4
ER -