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http://reply.papertrans.cn/1/15/1476/1476-32.png
Submitted on: 16 April 2003.
Revised on: 05 June 2003.
Accepted on: 30 June 2003.
___________________AMERICAN NATURALIST---UNIV CHICAGO PRESS
Submitted on: 08 February 2022.
Revised on: 18 May 2022.
Accepted on: 13 July 2022.
___________________AMERICAN NATURALIST---UNIV CHICAGO PRESS
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Submitted on: 13 April 2002.
Revised on: 08 August 2002.
Accepted on: 27 August 2002.
___________________AMERICAN NATURALIST---UNIV CHICAGO PRESS