Patterns of Waterbirds Abundance and Habitat Use in Rice Fields

Nam, Hyung-Kyu; Choi, Seung-Hye; Choi, Young In; Yoo, Jeong‐Chil

doi:10.5338/kjea.2012.31.4.359

Cited by 19 publications

(18 citation statements)

References 28 publications

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“…한국 중서부지역의 논습지는 도요물떼새와 같은 이동철새가 이용하는 중요한 중간기착지 중 하나이다 (Nam et al, 2012(Nam et al, , 2015.서해안 일대는 넓은 퇴적층이 형성되어 오래 전부터 농 경지가 발달하였고, 이러한 농경지는 다양한 조류에게 먹이와 휴식처를 제공해 왔다 (Yoo and Lee, 1998). 논습지는 일시 적으로 담수환경(flooded fields)을 조성하여 조류를 포함한 다양한 습지생물 중요한 서식지를 제공한다 (Fasola and Ruíz, 1996;Elphick, 2000).…”

Section: Skagen and Knopf (1993)는 성공적인 이주(Migration)를 위해 번식지와 월동지 사이에unclassified

Influence of Foraging Behaviors of Shorebirds on Habitat use in Rice Fields During Spring Migration

Nam¹,

Choi

Yoo³

2015

Korean Journal of Environmental Agriculture

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BACKGROUND:The coexisting shorebirds often use various foraging strategies, including feeding methods and habitat use, which are the likely mechanisms to explain the variation of morphological and behavior traits. We studied the foraging behaviors of four shorebirds to define how species separate according to habitat structures in rice fields of western-central Korea during their northward migration. METHODS AND RESULTS:The studied species were Long-toed Stints (Calidris subminuta), Wood Sandpipers (Tringa glareola), Common Greenshanks (Tringa nebularia), and Black-tailed Godwits (Limosa limosa), which were commonly observed in rice fields and represented by a wide range of morphological traits. Habitats were categorized into three types ("plowed with water", "shallow water level after harrowing", and "deep water level after harrowing") according to the irrigation intensity and soil manipulation of the farming practices. Long-toed Stints mainly foraged in

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Section: Skagen and Knopf (1993)는 성공적인 이주(Migration)를 위해 번식지와 월동지 사이에unclassified

Influence of Foraging Behaviors of Shorebirds on Habitat use in Rice Fields During Spring Migration

Nam¹,

Choi

Yoo³

2015

Korean Journal of Environmental Agriculture

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“…특히, 논습지내 무논(flooding fields) 조성은 수조류 (waterbirds)를 포함한 다양한 야생동물에게 중요한 서식처 를 제공한다 (Tréca, 1994;Fasola and Ruiz, 1996;Elphick and Oring, 1998;Elphick, 2000;Maeda, 2001;Elphick and Oring, 2003). 국내 벼(Oryza sativa)는 주요 농작물로 넓은 면적을 차지하며, 주기적으로 뚜렷한 환경 변화와 시기 에 따라 다양한 수조류의 서식처 기능을 하는 것으로 알려져 있다 (Nam et al, 2012). 특히, 봄철에는 무논의 형태로 인공 습지를 형성하여 도요⋅물떼새류등 다양한 수조류에게 서식 처를 제공하는 것으로 알려져 있는데, 한국 중서부지역은 EAAF의 연안내륙습지로써 도요⋅물떼새류에게 중간기착지 역할의 보다 명확한 파악이 필요하다.…”

Section: 세계자연보호연맹(Iucn)에 따르면 Eaaf 조간대의 생 물다양성 감소가 급격히 나타나고 생태서비스가 소실되unclassified

“…2). 이는 물이 유입된 논은 자연습지와 유사한 기능을 가져 수조 류에게 중요한 취식지를 제공하기 때문이다 (Fasola and Ruiz, 1996;González-Solís et al, 1996;Marques and Vicente, 1999;Elphick, 2010) 내며, 도요⋅물떼새류에게 다양한 서식지를 제공한다 (Nam et al, 2012).…”

Section: 도요⋅물떼새 군집의 서식지 이용 특성 농경지의 물리적 구조에 따라 도요⋅물떼새류의 종별 이 용 형태는 다르게unclassified

Characteristics of Population Dynamics and Habitat Use of Shorebirds in Rice Fields during Spring Migration

Choi¹,

Nam²,

Yoo³

2014

Korean Journal of Environmental Agriculture

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BACKGROUND:Shorebirds use a variety of wetlands as their stopover sites to replenish energy and nutrient reserves along the migration route. It is increasingly important to understand how birds use the remaining available habitats during migration period, because shorebird stopover sites are often altered and destroyed. Rice fields serve as a major inland stopover site for migrating shorebirds. However, the information on habitat use patterns of shorebirds in rice fields is very limited in Korea. Therefore, we studied the patterns of shorebird abundance and their habitat use in rice fields during spring migration period in western-central Korea. METHODS AND RESULTS:Surveys were conducted at interval of 2-3 days during the spring migration period of 2014 at rice fields of mid-western Korea. We recorded the location of the observed birds on the rice field map according to the local habitat type. The habitat types were divided by physical structure and cultivation methods. Fifteen shorebird species and 7,852 individuals were recorded during the survey period. The number of shorebird

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“…Typically, in Korea, the fields are flooded throughout the rice-growing season (from late April to September), and the water level varies between 3 cm and 15 cm. During this period, many shorebirds and herons that feed mainly on aquatic organisms are commonly observed in the rice fields (Nam et al 2012). During the non-growing season (from October to early April), the rice fields are often dry and are used by waterfowl and cranes that feed on the rice grains or stubble remaining after the harvest (Lee et al 2007).…”

mentioning

confidence: 99%

“…During the non-growing season (from October to early April), the rice fields are often dry and are used by waterfowl and cranes that feed on the rice grains or stubble remaining after the harvest (Lee et al 2007). Therefore, rice fields continuously provide foraging habitats for different types of waterbirds throughout the year (Nam et al 2012).…”

mentioning

confidence: 99%