Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island
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Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island
Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island
海洋湖沼学报(英文)2012年30卷第3期 页码:485-496
Affiliations:
1. State Key Laboratory of Estuarine and Coastal Research East China Normal University
2. Shanghai Key Laboratory of Urbanization and Ecological Restoration East China Normal University
Author bio:
Funds:
Supported by the National Basic Research Program of China (973 Program) (Nos. 2010CB951204, 2008DFB90240), and the National Special Research Fund for Non-Profit Sector (Marine) (No. 200805080)
Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island[J]. 海洋湖沼学报(英文), 2012,30(3):485-496.
Fan, X., Zhang, L. Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island., Chin. J. Ocean. Limnol. 30, 485–496 (2012). https://doi.org/10.1007/s00343-012-1149-0
Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island[J]. 海洋湖沼学报(英文), 2012,30(3):485-496. DOI: 10.1007/s00343-012-1149-0.
Fan, X., Zhang, L. Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island., Chin. J. Ocean. Limnol. 30, 485–496 (2012). https://doi.org/10.1007/s00343-012-1149-0DOI:
Spatiotemporal dynamics of ecological variation of waterbird habitats in Dongtan area of Chongming Island
摘要
Abstract
Based on Landsat TM images
we explored the pattern of variation of suitable waterbird habitats from 1990 to 2008 in the Dongtan area of Chongming Island at the Changjiang (Yangtze) River mouth. By applying our highly accurate indicator model (R=0.999
P<0.01)
we quantified the variations of fluctuation intensity for local waterbird habitats during 1990–2008
and for the main waterbird groups (Anatidae
Charadriidae
Ardeidae and Laridae) from 2006 to 2008
to evaluate the impact of habitat quantity change on the waterbird habitat status and the population dynamics of the different waterbird groups. The results show that the aquaculture ponds (AP) and the Scirpus mariqueter zone (SMZ) underwent drastic habitat changes during certain periods (AP: 1997–2000
2000–2003
2005–2008; SMZ: 1997–2000)
and the fluctuation intensity differed among habitat types in the order AP>SMZ>TSH (total suitable habitat)>BSA (bare mud flat and shallow water area). The abandonment of tracts of aquaculture ponds in Dongtan in mid-2006 brought about an intensive population fluctuation
caused by rapidly changing habitat with the population expanding to adjacent areas. At present
Anatidae and Ardeidae are threatened in the Dongtan area with declining populations because of their very “picky” habitat requirements (i.e.
high reliance on AP). The Charadriidae experienced enormous population declines in the late 1990s
however
they have since recovered to normal levels as habitat change has stabilized. Our findings suggest that the current challenges for habitat management are the protection and stabilization of AP and SMZ habitats.
关键词
Keywords
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