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Japanese Journal of Ornithology
Article . 2009 . Peer-reviewed
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Immigration of banded Great Cormorants to inland areas

標識されたカワウの本州内陸部への移入
Authors: Tsuboi, Jun-ichi; Fukuda, Michio; Kato, Nanae; Saito, Naruhito; Ishida, Akira; Sudo, Akiko;

Immigration of banded Great Cormorants to inland areas

Abstract

本研究では,広域的に移動するカワウPhalacrocorax carboにおいて,山梨県で発見された標識個体の記録から,沿岸域を中心とする大規模コロニーから内陸部への移入および飛来の傾向を調査した.2003年から2008年までの間に,銃器による捕獲で8個体,釣り針による捕獲で2個体,観察により3個体,計13個体の標識されたカワウが発見された.発見された水系別にみると,駿河湾に注ぐ富士川水系では,5個体全てが愛知県以西で標識された個体であった.一方,上流域が山梨県東部にあり相模湾,東京湾へと注ぐ相模川および多摩川では,8個体の標識されたカワウは,全て関東地方沿岸域で標識された個体であった.富士川と相模川,多摩川とで,カワウの標識された地域には明瞭な差異がみられ,富士川水系へは中部,近畿地方から,相模川,多摩川水系へは,関東地方から移入または飛来することが示唆された.本研究のように,カワウへの標識の装着が実施されていないエリアでも,既存の捕獲個体データからの標識個体情報の抽出や,観察による標識個体の発見は十分に可能であると考えられる.各地域での発見記録が集約されれば,広域的な移動経路が解明されるであろう.

Keywords

移動, 移入, カワウ, Great Cormorants, 標識, migration, color bands, banding, カラーリング, immigration

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
bronze