应用生态学报2011，Vol.22Issue(5)：1287-1294,8.
温度对矩形龟甲轮虫生命表统计学参数和形态特征的影响
Effects of temperature on Keratella quadrata life table demography and morphometric characteristics
摘要
Abstract
By the method of individual culture, this paper studied the effects of temperature (10 ℃, 15 ℃ , 20 ℃ , and 25 ℃ ) on the life table demography (net reproductive rate, intrinsic rate of population increase, generation time, average lifespan, and proportion of mictic offspring) and the offspring morphometric characteristics ( body length, body width, antero-median spine length, left and right antero-lateral spine lengths, left and right posterior-spine lengths, and posterior spine number) of two posterior-spined, single posterior-spined, and zero posterior-spined morphotypes of Keratella quadrata. All the test life table demographic parameters and offspring morphometric parameters differed with morphotype and temperature, and their responses to elevated temperature differed with morphotype. Temperature had significant effects on the intrinsic rate of population increase, generation time, average lifespan, and the offspring morphometric parameters (P＜ 0. 05) ; morphotype had significant effects on the offspring body length, antero-median spine length, and left and right posterior-spine lengths ( P＜0. 05 ) but less effects on the life table demography (P＞0. 05 ) ; and the interaction of temperature and morphotype had significant effects on the generation time and all the offspring morphometric parameters (P＜0. 05). Among the three morphotypes, the two posterior-spined morphotype had shorter offspring body length (122. 1±0. 6 μm) than the zero and single posterior-spined morphotypes (126. 3±0. 7 μm and 125. l±0. 7 μm, respectively). The offspring antero-median spine length (32. 5±0. 3 μm) of the two posterior-spined morphotype was longer than that of the zero and single posterior-spined morphotypes (31. 1±0. 3 μm and 30. 8±0. 3 μm, respectively). The offspring left and right posterior-spine lengths of the two posterior-spined morphotype (31. 2 ±1.0 μm and 32. 3 ±0.9 μm, respectivedy) were similar to those of the single posterior-spined morphotype(29. 5±0. 8 μm and 31. 5±0. 6 μm, respectively) , but shorter than those of the zero posterior-spined morphotype (36. 7±1. 5 μm and 37. 3±1. 6 μm, respectively). The relationships between the offspring spine length, body width, and body length were also affected by temperature and morphotype.关键词
矩形龟甲轮虫/形态型/生命表统计学参数/形态特征/温度分类
生物科学引用本文复制引用
葛雅丽,席贻龙,马杰,许丹丹..温度对矩形龟甲轮虫生命表统计学参数和形态特征的影响[J].应用生态学报,2011,22(5):1287-1294,8.基金项目
国家自然科学基金项目(30870369,30499341)、安徽省优秀青年基金项目(08040106904)、高等学校优秀青年人才基金项目(2010SQRL031)安徽省高校生物环境与生态安全省级重点实验室专项基金项目(2004sys003)和重要生物资源保护和利用研究安徽省重点实验室专项基金资助. （30870369,30499341）
