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首页> 外文期刊>Slovak Raptor Journal >Migration pattern and wintering population of the Eurasian marsh harrier (Circus aeruginosus) in the Central Marshes, a wetland of international importance in southern Iraq
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Migration pattern and wintering population of the Eurasian marsh harrier (Circus aeruginosus) in the Central Marshes, a wetland of international importance in southern Iraq

机译：欧亚沼泽鹞（马戏团铜绿假单节）在中央沼泽中的迁移模式和越冬人口，伊拉克南部国际重视湿地

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摘要

There is scarce information on the migration patterns and population size of the Eurasian marsh harrier (Circus aeruginosus) in Iraq in general and in the southern Mesopotamian wetlands in particular. From February 2018a??April 2019, a total of 11 field expeditions were conducted in the Central Marshes (219,700 ha), one of the major Mesopotamian wetlands and Iraqa??s National Park, a RAMSAR and UNESCO site. Two of the field survey objectives were to determine the spatial and temporal distribution and estimate the population size of the migratory/wintering Eurasian marsh harrier in the Central Marshes. Distance sampling on three line-transects covering a study plot of 40,000 ha was conducted. Among other wintering Circus harriers, the Eurasian marsh harrier was the most abundant species with a total of 93 individuals recorded. The estimated species densities were 0.0042a??0.035 individuals/ha, and the estimated size of the Eurasian marsh harrier migratory population in the Central Marshes was 922.7a??7,689.5 individuals. Moreover, the migration phenology and breeding status of the Eurasian marsh harrier in the Central Marshes were investigated. Our efforts did not confirm the breeding of this species during recent years, or since the inundation of the Mesopotamian wetlands in 2003. Furthermore, hunting and trapping were identified as major threats affecting the species which need urgent conservation action.
机译：关于伊拉克欧洲沼泽鹞（马戏团Aerginosus）的迁移模式和人口大小的稀缺信息，特别是南部的中奥泊托乃i湿地。从2018年2月到2019年4月，中央沼泽（219,700公顷）共有11个野外探险，其中一个主要的中午湿地和伊拉克的国家公园，拉姆萨尔和联合国教科文组织网站。两个现场调查目标是确定空间和时间分布，并估计中央沼泽中迁徙/越冬欧亚沼泽鹞的人口规模。进行了覆盖40,000公顷的研究图的三线横断面的距离采样。在其他越冬马戏团鹞中，欧亚沼泽鹞是最丰富的物种，共有93人录制。估计的物种密度为0.0042A ?? 0.035个个体/公顷，中央沼泽中欧亚沼泽鹞迁徙人口的估计规模为922.7A？7,689.5个人。此外，调查了中央沼泽中欧亚沼泽鹞的迁徙候选和育种状态。我们的努力近年来没有确认这种物种的繁殖，或者自2003年淹没了梅索多米亚湿地。此外，狩猎和诱捕被确定为影响需要紧急保护行动的物种的主要威胁。

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