Ecological balance in the native population dynamics may cause the paradox of pest control with harvesting
Journal of Theoretical Biology 252 巻 1 号
87-97 頁
2008-05 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Ecological balance in the native population dynamics may cause the paradox of pest control with harvesting
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| 作成者 |
Matsuoka Tsutomu
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| 収録物名 |
Journal of Theoretical Biology
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| 巻 | 252 |
| 号 | 1 |
| 開始ページ | 87 |
| 終了ページ | 97 |
| 抄録 |
We analyze a time-discrete mathematical model of host–parasite population dynamics with harvesting, in which the host can be regarded as a pest. We harvest a portion of the host population at a moment in each parasitism season. The principal target of the harvesting is the host; however, the parasite population may also be affected and reduced by a portion. Our model involves the Beverton–Holt type density effect on the host population. We investigate the condition in which the harvesting of the host results in an eventual increase of its equilibrium population size, analytically proving that the paradoxical increase could occur even when the harvesting does not directly affect the parasite population at all. We show that the paradox of pest control could be caused essentially by the interspecific relationship and the intraspecific density effect.
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| 著者キーワード |
mathematical model
resurgence
host-parasite
difference equations
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| NDC分類 |
数学 [ 410 ]
生物科学・一般生物学 [ 460 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Elsevier Ltd
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| 発行日 | 2008-05 |
| 権利情報 |
Copyright (c) 2008 Elsevier Ltd
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0022-5193
[DOI] 10.1016/j.jtbi.2008.01.024
[NCID] AA00708258
[DOI] http://dx.doi.org/10.1016/j.jtbi.2008.01.024
～の異版である
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