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2014•Dongwuxue zazhiRequires access

Diet Analysis of Migrating Whooper Swan( Cygnus cygnus)at the Nanhaizi Wetland of Baotou in Migrating Season

Lifen Liu

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Abstract

We studied the diet of Whooper swan( Cygnus cygnus) by analyzing the feces in migration season from February to April 2013 in the Nanhaizi Wetland of Baotou. The major diet items of Whooper swan were dockleaf knotweed( Polygonum lapathifolium),corn( Zea mays),liquorice( Glycyrrhiza glabra) and common cattail( Typha amgustifolia). Eighteen Whooper swan who arrived before ice melted mainly fed on dockleaf knotweed,accounting for 99. 4%,while 120 Whooper swans arrived after the ice melted,fed on corn more accounting for 69. 7%,followed by liquorice( 18. 3%) and common cattail( 11. 2%) respectively. There was a significant difference between the two groups of Swan in frequency of each plant consumed. These results suggest that the food item of Swan closely related to the wetland dominant plants species and agricultural products.

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What this paper is about

We studied the diet of Whooper swan( Cygnus cygnus) by analyzing the feces in migration season from February to April 2013 in the Nanhaizi Wetland of Baotou. The major diet items of Whooper swan were dockleaf knotweed( Polygonum lapathifolium),corn( Zea mays),liquorice( Glycyrrhiza glabra) and common cattail( Typha amgustifolia). Eighteen Whooper swan who arrived before ice melted mainly fed on dockleaf knotweed,accounting for 99. 4%,while 120 Whooper swans arrived after the ice melted,fed on corn more accounting for 69. 7%,followed by liquorice( 18. 3%) and common cattail( 11. 2%) respectively. There was a significant difference between the two groups of Swan in frequency of each plant consumed. These results suggest that the food item of Swan closely related to the wetland dominant plants species and agricultural products.

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Available abstract

We studied the diet of Whooper swan( Cygnus cygnus) by analyzing the feces in migration season from February to April 2013 in the Nanhaizi Wetland of Baotou. The major diet items of Whooper swan were dockleaf knotweed( Polygonum lapathifolium),corn( Zea mays),liquorice( Glycyrrhiza glabra) and common cattail( Typha amgustifolia). Eighteen Whooper swan who arrived before ice melted mainly fed on dockleaf knotweed,accounting for 99. 4%,while 120 Whooper swans arrived after the ice melted,fed on corn more accounting for 69. 7%,followed by liquorice( 18. 3%) and common cattail( 11. 2%) respectively. There was a significant difference between the two groups of Swan in frequency of each plant consumed. These results suggest that the food item of Swan closely related to the wetland dominant plants species and agricultural products.

Key concepts: Wetland, Biology, Geography, Ecology

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Diet Analysis of Migrating Whooper Swan( Cygnus cygnus)at the Nanhaizi Wetland of Baotou in Migrating Season — Research Paper | ScholarLens