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首页> 外文期刊>Journal of Chemical Ecology >TANNINS IN Puccinellia arctica: POSSIBLE DETERRENTS TO HERBIVORY BY CANADA GEESE
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TANNINS IN Puccinellia arctica: POSSIBLE DETERRENTS TO HERBIVORY BY CANADA GEESE

机译:Puccinellia arctica中的单宁:加拿大吉斯可能会对草食性造成威胁

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摘要

Urban populations of Canada geese, Branta canadensis, pose a nuisance problem throughout most of the eastern United States and in other parts of the United States and Canada. Puccinellia arctica is a species of arctic grass that is unpalatable to Canada geese on the North Slope of Alaska and may prove to be an effective long-term and nonlethal means of controlling the growing populations of urban Canada geese. A comparative study of the secondary metabolites of both P. arctica and Puccinellia langeana and Poa pratensis, two palatable grass species that Canada geese generally consume, revealed no significant differences. However, ellagitannin levels were higher in P. arctica than in the palatable grass species and may be contributing to its unpalatability to Canada geese. These results support the potential to use P. arctica in public areas to control geese intrusions.
机译:在美国东部大部分地区以及美国和加拿大其他地区,加拿大鹅,加拿大黑雁的城市人口构成了令人讨厌的问题。 Puccinellia arctica是北极草种,对阿拉斯加北坡的加拿大鹅不喜欢,并且可能被证明是控制加拿大城市鹅生长种群的有效的长期和非致命手段。对加拿大大雁普遍食用的两种可口草种——P。arctica和Puccinellia langeana以及Poa pratensis的次生代谢产物的比较研究没有显着差异。然而,P。arctica中的鞣花单宁含量高于可口草种中的鞣花单宁,这可能是导致其对加拿大大雁不佳的原因。这些结果支持在公共区域使用北极假单胞菌控制鹅入侵的潜力。

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