Abstract:The differences in life table parameters among the three sibling species including sibling HE1, HE3 and LE9 in Brachionus calyciflorus species complex collected from Lake Liantang and Pond Hehuatang in Wuhu City and cultured at 13℃, 18℃, 23℃ and 28℃ with 2.0×106 cells/mL of Scenedesmus obliquus were that at 13 and 18℃, sibling species LE9 had longer life expectancy at hatching and average lifespan than sibling species HE3; but at 23℃, sibling species HE1 had the shortest life expectancy at hatching and average lifespan. At 13℃, sibling species LE9 had longer generation time than sibling species HE3; but at 18℃ and 23℃, sibling species LE9 and HE1 had the longest and shortest generation time, respectively. At 13℃, sibling species LE9 had the highest net reproductive rate, but the reverse was true for sibling species HE1 at 28℃. At 13℃, sibling species LE9 had the highest intrinsic rate of population growth, but at 18℃, sibling species HE3 had higher intrinsic rate of population growth than sibling species LE9. At 18℃ and 28℃, the percentage of mictic females in the offspring produced by sibling species HE3 was the highest; but at 23℃, the percentage of mictic females in the offspring produced by sibling species HE1 was lower than that produced by sibling species HE3. The responses in life table parameters to increasing temperatures were different among the three sibling species. Temperature, sibling species and their interactions all significantly influenced generation time, average lifespan, life expectancy at hatching and percentage of mictic females in the produced offspring. Both temperature and sibling species affected markedly net reproductive rate and intrinsic rate of population growth, but their interactions did not.