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1 0 0 0 OA 1768年―ロイヤル・アカデミーの創設とサー・ジョシュア・レノルズ

著者: 鈴木雅之
出版者: 京都大学総合人間学部英語部会
雑誌: 英文学評論 (ISSN:04208641)
巻号頁・発行日: vol.75, pp.69-97, 2003-03

2012-11-01 23:24:19
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1 0 0 0 OA 亡命者の入国問題と国際法

著者: 島田征夫
出版者: 早稲田大学法学会
雑誌: 早稲田法学 (ISSN:03890546)
巻号頁・発行日: vol.51, no.1-2, pp.71-102, 1976-03-20

2012-11-01 16:56:52
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http://hdl.handle.net/2065/1938

1 0 0 0 OA 〈研究ノート〉米国著作権法におけるオンライン送信 : 頒布権との関係を中心に

著者: 鳥澤孝之
出版者: 筑波法政学会
雑誌: 筑波法政 (ISSN:03886220)
巻号頁・発行日: no.53, pp.137-151, 2012-09

2012-11-01 08:30:12
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http://hdl.handle.net/2241/117746

1 0 0 0 OA The presence of heterospecific males causes an Allee effect

著者: Kyogoku Daisuke Nishida Takayoshi
出版者: The Society of Population Ecology and Springer
雑誌: Population Ecology (ISSN:14383896)
巻号頁・発行日: vol.54, no.3, pp.391-395, 2012-07
被引用文献数: 25

The Allee effect is a positive causal relationship between any component of fitness and population density or size. Allee effects strongly affect the persistence of small or sparse populations. Predicting Allee effects remains a challenge, possibly because not all causal mechanisms are known. We hypothesized that reproductive interference (an interspecific reproductive interaction that reduces the fitness of the species involved) can generate an Allee effect. If the density of the interfering species is constant, an increase in the population of the species receiving interference may dilute the per capita effect of reproductive interference and may generate an Allee effect. To test this hypothesis, we examined the effect of heterospecific males on the relationship between per capita fecundity and conspecific density in Callosobruchus chinensis and C. maculatus. Of the two species, only C. maculatus females suffer reproductive interference from heterospecific males. Only C. maculatus, the species susceptible to reproductive interference, demonstrated an Allee effect, and only when heterospecific males were present. In contrast, C. chinensis, the species not susceptible to reproductive interference, demonstrated no Allee effect regardless of the presence of heterospecific males. Our results show that reproductive interference in fact generated an Allee effect, suggesting the potential importance of interspecific sexual interactions especially in small or sparse populations, even in the absence of a shared resource. It may be possible to predict Allee effects produced by this mechanism a priori by testing reproductive interference between closely related species.

2012-10-31 21:52:20
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1 0 0 0 OA コンテクストにゆれる日本 : 若者言葉から見る日本人の現状

著者: 井上俊輔中元祐司原田知典
出版者: 早稲田大学社会科学学会
雑誌: 早稲田社会科学総合研究. 別冊, 2008年度学生論文集 (ISSN:13457640)
巻号頁・発行日: pp.223-232, 2009-06-25

2012-10-31 17:59:11
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http://hdl.handle.net/2065/32388

1 0 0 0 OA 認識と秩序 : 人間学としての心理学序説

著者: 石原岩太郎 Iwataro Ishihara
雑誌: 人文論究 (ISSN:02866773)
巻号頁・発行日: vol.24, no.3, pp.23-47, 1974-11-05

2012-10-31 10:51:22
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http://hdl.handle.net/10236/5328

1 0 0 0 OA Axiomatic Differential Geometry Ⅱ-3

著者: Nishimura Hirokazu
巻号頁・発行日: pp.1-52, 2012-10-28

As the fourth paper of our series of papers concerned with axiomatic differential geometry, this paper is devoted to the general Jacobi identity supporting the Jacobi identity of vector fields. The general Jacobi identity can be regarded as one of the few fundamental results belonging properly to smootheology.