遗鸥(Larus relictus)在国际上是濒危鸟种,繁殖地在内蒙古盐沼湿地,繁殖地的选择与觅食行为密切相关。从2005年至今连续多年对该盐沼湿地遗鸥进行调查,结果表明:在内蒙古沙漠盐沼湿地,豆娘成虫和幼虫是遗鸥整个繁殖季的主要食物,摇蚊幼虫起重要的食物补充作用,由于当地生态环境恶化,水体pH值9.59已临近豆娘生存的pH值上限9.62,豆娘濒临消失,遗鸥将失去其在繁殖地的主要食物。
In the world Larus relictus is an endangered species.It’s breeding ground is in the salina wetland in Inner Mongolia.The choice of breeding ground is closely related to the foraging behavior.We have studied Larus relictus in the salina wetland for many years since 2005.Results showed that the Caenagrion imagoes and larvae are the main food of Larus relictus in the breeding season in Inner Mongolia desert salina wetland.Chironomidae larvae is an important food supplement for Larus relictus.Because of the local ecological environment deterioration,the water pH value 9.59 will reach the limit of Caenagrion survival 9.62.If Caenagrion disappears,Larus relictus will lose its main food in breeding ground.
[1]King W B .Red Data Book,2 Aves[M].Morges Switzerland:IUCN,1978—1979.
[2]Collar N J,Andrew P.Birds to Watch The IUCN World Checklist of Threatened Birds[M] Washington,DC:Smithsonian Institution Press,1988.
[3]Collar N J,Crosby M J,Statiersfield A J,Birds to watch 2-The World List of Threatened Birds[M].Cambridge UK:Birdlife International,1994.
[4]张荫荪,丁文宁,陈容伯,等.遗鸥(Larus relictus)繁殖生态研究[J].动物学报,1993,2(37):131-137.
[5]何芬奇,张荫荪,吴勇.遗鸥鄂尔多斯种群研究的最新报道[J].生物多样性,1994,2(2):88-90.
[6]高铁军,吴勇,吴兆军,等.遗鸥在鄂尔多斯中部的分布-暨一新巢群的发现[J].动物学杂志,1992,27(5):31-33.
[7]张荫荪,何芬奇.对遗鸥分类地位问题的进一步论证[J].动物分类学报,1994,19(3):378-382.
[8]何芬奇,David Melville,邢小军,等.遗鸥研究概述[J].动物学杂志,2002,37(3):65-70.
[9]约翰·马敬能,何芬奇,卡伦·菲利普斯.中国鸟类野外手册[M].长沙:湖南教育出版社.
[10]张荫荪,何芬奇,陈容伯,等.遗鸥繁殖生境选择及其繁殖地湿地鸟类群落研究[J].动物学研究,1993,14(2):128-135.
[11]田耜,薛文,马俊,等.遗鸥(larus relictus)繁殖群在内蒙古东部的新发现[J].内蒙古农业大学学报:自然科学版,1998,29(5):694-696.
[12]吕宪国.湿地生态系统保护与管理[M].北京:化学工业出版社,2004.
[13]谢祚浑,周一兵.中国北方盐碱水域中的底栖动物[J].大连水产学院学报,2002.17(3):176-186.
