欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志

• 研究论文 • 上一篇    下一篇

盐城射阳河口春季鸻鹬类与大型底栖动物关系

侯森林1,余晓韵2,鲁长虎2**   

  1. 1南京森林警察学院, 南京 210023; 2南京林业大学, 南京 210037)
  • 出版日期:2013-10-10 发布日期:2013-10-10

Relationships between shorebirds and macrobenthos in Sheyang Estuary of Yancheng Reserve, East China in spring.

HOU Sen-lin1, YU Xiao-yun2, LU Chang-hu2**   

  1.  (1 Nanjing ForestPolice College, Nanjing 210023, China; 2 Nanjing Forestry University, Nanjing 210037, China)
  • Online:2013-10-10 Published:2013-10-10

摘要:

2009年春季,在盐城自然保护区射阳河口滩涂选择高潮带光滩、中潮带光滩、低潮带光滩、高潮带米草丛和潮沟边滩(无米草分布的区域)等栖息地类型,从鸻鹬类嘴长和觅食策略2个角度研究了鸻鹬类与大型底栖动物的关系。结果表明:研究地的主要底栖动物是双壳类和甲壳类动物,其分布和鸻鹬类的分布基本一致;嘴长50 mm以上鸻鹬类的密度与甲壳类密度显著正相关,嘴长25 mm以下鸻鹬类密度与双壳类密度及底栖动物总密度显著正相关,嘴长25~50 mm鸻鹬类密度与任何一类底栖动物均未表现出明显相关性;视觉连续型觅食策略者密度与甲壳类密度显著正相关,触觉连续型觅食策略鸻鹬类密度与双壳类密度及底栖动物总密度显著正相关,奔停型觅食策略鸻鹬类密度与任何一类底栖动物均未表现出明显相关性。嘴长50 mm以上和25~50 mm的鸻鹬类的比例与面上型底栖动物的比例正相关,与面下型底栖动物的比例负相关,而嘴长25 mm以下的鸻鹬类与其相反;视觉连续型和奔-停型觅食策略鸻鹬类的比例与面上型底栖动物的比例具有正相关性,与面下型底栖动物的比例具有负相关性;触觉连续型觅食策略鸻鹬类与其相反,但相关性均不显著。
 

关键词: 树轮稳定碳同位素值, 气孔导度, 水分利用效率, 树轮宽度

Abstract:

In the spring of 2009, an investigation was conducted on the relationships between shorebirds and macrobenthos in the Sheyang Estuary of Yancheng Reserve from the viewpoints of shorebirds bill length and foraging strategy. The high, medium, and low tidal flats without plants, intertidal zone with Spartina alterniflora, and the bank of creek without S. alterniflora were selected as the test habitats. In the study area, Bivalve and Crustacean were the main macrobenthos, whose distribution was basically the same as the distribution of shorebirds. The densities of the shorebirds with a bill length of >50 mm were significantly positively correlated with that of Crustacean, while the densities of the shorebirds with a bill length of <25 mm were significantly positively correlated with those of Bivalve and total macrobenthos. No significant correlations were observed between the densities of the shorebirds with a bill length of 25-50 mm and those of several forms of macrobenthos. The density of visual continuous shorebirds was positively correlated with that of Crustacean, and the density of tactile continuous shorebirds was positively correlated with the densities of Bivalve and total macrobenthos. However, the density of pause-travel shorebirds had less correlation with those of several forms of macrobenthos. The percentages of the shorebirds with a bill length of >50 mm and 25-50 mm were positively correlated to the percentages of epifauna life forms, but negatively correlated to the percentages of infauna life forms, whereas the percentages of the shorebirds with a bill length of <25 mm were positively correlated to infauna and negatively correlated to epifauna life forms. The percentages of the shorebirds with visual continuous and pausetravel foragingstrategies were positively correlated to the percentages of epifauna and negatively correlated to infauna life forms, whereas the percentage of the shorebirds with tactile foraging-strategy was positively correlated to infauna and negatively correlated to the epifauna life forms, but the correlations were not significant.
 

Key words: tree-ring stable carbon isotope, tree-ring width, water use efficiency, stomatal conductance.