THE PELAGIC ECOLOGY OF THE GREY AND RED-NECKED PHALAROPES PHALAROPUS-FULICARIUS AND PHALAROPUS-LOBATUS IN THE BAY OF FUNDY, EASTERN CANADA
THE PELAGIC ECOLOGY OF THE GREY AND RED-NECKED PHALAROPES PHALAROPUS-FULICARIUS AND PHALAROPUS-LOBATUS IN THE BAY OF FUNDY, EASTERN CANADA
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DOI：
10.1111/j.1474-919x.1988.tb00974.x
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发表时间：
1988-04-01
期刊：
影响因子：
2.1
通讯作者：
GASKIN, DE
中科院分区：
文献类型：
--
作者：
BROWN, RGB;GASKIN, DE
加拿大东部芬迪外海湾是灰颈和红颈凤头鹦鹉Phalaropus fulicarius和Phalaropus lobatus在夏末的重要觅食区。这种鸟以桡足类大小的浮游动物为食，这些浮游动物是由强大的潮汐流通过浅的岩石“壁架”带到水面的，并集中在上升流和会聚的“条纹”中。喂养的掌鼠猴在“条纹”比在相邻的“控制”区域明显更丰富。红颈Phalaropes是更常见的物种，他们更喜欢新玩法海岸，那里的桡足类生物量高，物种群落主要是大型，第六至第五阶段省藤finmarchicus。灰色的Phalaropes主要发生在新斯科舍省的芬迪一侧，那里的桡足类生物量和优势物种较小。这两个物种的食性，和他们的非繁殖distribuits，进行了审查。它的结论是，上升，收敛，和其他海洋现象，集中在表面的浮游动物是影响的主要因素？
The outer Bay of Fundy, eastern Canada is an important feeding area for migrant Grey and Red-necked Phalaropes Phalaropus fulicarius and P. lobatus in late summer. The birds feed on copepod-sized zooplankton, brought to the surface by the passage of strong tidal streams over shallow, rocky ''ledges'', and concentrated there in upwelling and convergence ''streaks''. Feeding phalaropes are significantly more abundant in the ''streaks'' than in adjacent ''control'' areas. Red-necked Phalaropes are the more common species; they prefer the New Brunswick shore, where copepod biomass is high and the species-community is dominated by large, Stage VI-V Calamus finmarchicus. Grey Phalaropes occur mainly on the Nova Scotian side of Fundy, where the copepod biomass, and the dominant species, are smaller. The feeding habits of both species, and their non-breeding distibutions, are reviewed. It is concluded that upwellings, convergences, and other oceanographic phenomena that concentrate zooplankton at the surface are the principal factors influencing the pelagic ecology of phalaropes.