کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4380487 1304003 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Food supply in intertidal area for shorebirds during stopover at Chongming Dongtan, China
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Food supply in intertidal area for shorebirds during stopover at Chongming Dongtan, China
چکیده انگلیسی

The wetland in Chongming Dongtan, China is an important stopover site for migratory shorebirds along the East Asian-Australasian Flyway. The high-abundance macrobenthos in Chongming Dongtan allow migratory birds to refuel during the stopover. This study analyzed the distribution and density of macrobenthos in the intertidal zone. Results showed that the macrobenthos mainly consisted of gastropods, bivalves, polychaetes, crustaceans and insect larvae. The density of gastropods [(2805 ± 360) ind./m2] was the highest, accounting for up to 80% of the total macrobenthos density. Meanwhile, bivalves [(51.4 ± 7.8) g/m2] and gastropods [(38.7 ± 5.1) g/m2] together accounted for more than 90% of the total biomass. On the other hand, there were significant differences in the distribution of macrobenthos among different intertidal zones. Gastropods were mainly confined to the Scirpus zones, and bivalves to the outer Scirpus zone and the muddy and sandy flats. In terms of the spatial distribution of density, the gastropod density was higher in the north but lower in the south. However, no significant difference was found in the density and biomass of macrobenthos groups between spring and autumn, except that the density of bivalves in autumn was significantly higher than that in spring (P < 0.001).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Ecologica Sinica - Volume 27, Issue 6, June 2007, Pages 2149-2159