【摘要】 本文应用生态学中的生态位理论,对大连沿海石槽潮间带的六种骨螺的生态位宽度和生态位重叠进行了测定和研究。实验结果证明,六种骨螺无论从觅食高度还是从栖息底质来看互相间竞争强度均较大,而疣荔枝螺与其它五种螺相比较,竞争强度较低而生态位宽度值较高这是竞争促使其利用不同资源的结果。实验结果还证明,选择觅食高度和栖息底质做为分析贝类空间生态位的生态指标是较为合理的。更多还原

【Abstract】 In this paper,the theory of niche in ecology is applied to study on the niche breadth and overlap of 6 species of Muricidae from tidal zone of Dalian Shicao.The ex- perimental results show that the intensities of interspecific competition of 6 species are in a upper level.The theories of competition making animals to use different resources are discussed.更多还原