| 摘要: |
| 基于2014年9月和2015年4月辽东湾西海岸潮间带10个断面3个潮区的调查数据，对12个优势种的生活型、生态位宽度和生态位重叠度进行了分析，结果表明：12个优势种分别隶属于3门4纲12科；面上生活类群和面下生活类群的比值GS/GSB表现为春季＞秋季；秀丽织纹螺、日本大眼蟹和丽核螺的生态位宽度较宽(2.171、2.170和2.169) ，猫爪牡蛎和短角双眼钩虾的生态位宽度较窄（0.637和0.173）；生态位重叠较为显著的种类有四组，均是生态位宽度较宽的物种。以上结果也从一个侧面反映了底栖生物对季节和生境的适应情况，由于季节变化和生境不同，使物种生态位宽度值发生了变化，从而影响物种之间的生态位重叠值。 |
| 关键词: 潮间带 大型底栖动物 优势种 生活型 生态位 |
| DOI： |
| 分类号:Q958 |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
|
| The niche characteristics of macrobenthos community in intertidal zone on west coast of Liaodong Bay |
|
LI Yi-ping, GUO Dong, FU Jie, WANG Xiao-lin, LI Yu-long, DONG Jing
|
|
Liaoning Ocean and Fisheries Science Research Institute,Key Laboratory of Marine Biological Resources and Ecology
|
| Abstract: |
| Based on the survey data of 10 sections and 3 tidal zones in the intertidal zone on the west coast of Liaodong Bay in September 2014 and April 2015, we analyzed the life style, niche breadth and niche overlap of 12 dominant species. The results show that 12 dominant species belong to 3 phyla, 4 classes and 12 families respectively. The ratio GS/GSB of upper and lower surface is spring > autumn. The niche breadth of Nassarius festivus、Macrophthalmus japonicas and Mitrella bella are wider (2.171, 2.170 and 2.169), while the niche breadth of Talonostrea talonata and Ampelisca brevicornis are narrower (0.637 and 0.173). There are four groups of species with significant niche overlap, all of which are species with wide niche breadth. The above results reflect the adaptation of benthic organisms to seasons and habitats. The niche breadth values of species have changed due to seasonal changes and different habitats, thus affecting the niche overlap values among species. |
| Key words: Intertidal zone Macrobenthos Dominant species Life type Niche |