ホンセイインコ類によるセンジュギクの食害
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- SANDHU P. S.
- Department of Zoology, Punjab Agricultural University
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- SANDHU Jaswlnder S.
- Department of Forestry & Natural Resousces, Punjab Agricultural University
書誌事項
- タイトル別名
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- Parakeet Damage to Marigold
抄録
Blossom-headed Parakeet Psittacula cyanocephala and Rose-ringed Parakeet P. krameri were recorded to cause 64.7% damage to a seed crop of African Marigold Tagetes erecta cv. Cracker Jack. This is the first ever report on the parakeet damage to marigold. The Blossom-headed Parakeet was the major depredator, whereas, the Rose-ringed Parakeet was occasional visitor to the crop. This was probably due to the difficulty the latter species faced in feeding on the tiny seeds of marigold with its larger beak and availability of more profitable alternative food for its consumptiori. The parakeets did not feed randomly, but preferred the flowers nearer to their perching site. Consequently, the damage caused at a particular point was negatively related to the distance from the perch. The damage was positively related to the distance from road. The side towards road suffered minimum damage (28.7%) which was significantly less than the damage inflicted on the other three sides (80.3%, 84.8% and 69.9%) this confirming the tendency of the parakeets to keep away from human disturtance. The results of this study may be helpful in planning more effective and less expensive strategies for reducing bird damage to a crop in a particular situation.
収録刊行物
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- 日本鳥学会誌
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日本鳥学会誌 43 (2), 73-78, 1994
日本鳥学会
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詳細情報 詳細情報について
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- CRID
- 1390001204480321408
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- NII論文ID
- 130003564589
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- ISSN
- 18819710
- 0913400X
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可