http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Samane Sakaki,Ahad Sahragard 한국응용곤충학회 2011 Journal of Asia-Pacific Entomology Vol.14 No.4
Functional response is basic to any investigation of predator–prey relationships. In this study, the functional response of female Scymnus syriacus Marseul (Col.: Coccinellidae) to different densities (10, 20, 40, 60, 80,100) of third instar nymphs of Aphis gossypii Glover as prey was studied in an open patch experiment in a growth chamber (25 °C, 65±5% RH and a photoperiod of 16L:8D h ). Using logistic regression, a type II functional response for female Scymnus syriacus was determined. The searching efficiency (a') and handling time (T_h) of the female predator using non linear least-square regression were estimated as 0.0769±0.0136 h^(−1) and 0.3103±0.0438 h., respectively. Mean times required for the female predator to settle in a patch were 10.20±4.28, 6.58±2.58, 12.58±4.50, 4.53±1.48, 5.14±2.59, 3.87±3.52 min at different prey densities, respectively. Maximum theoretical predation rate (T/T_h) estimated by Rogers' model for the female predator was 77.34. The proportion of female predators remaining in open patches at the end of the experiment was dependent on prey density (R^2=0.876). The type of functional response obtained here agrees with studies on this predator in closed patches.