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ID 25569
本文ファイル
著者
Matsuoka, Tsutomu
キーワード
mathematical model
resurgence
host-parasite
difference equations
NDC
数学
生物科学・一般生物学
抄録(英)
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.
掲載誌名
Journal of Theoretical Biology
252巻
1号
開始ページ
87
終了ページ
97
出版年月日
2008-05
出版者
Elsevier Ltd
ISSN
0022-5193
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2008 Elsevier Ltd
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/j.jtbi.2008.01.024
部局名
理学研究科