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Article: Plant parental care: conspecific nurse effects in Frasera speciosa and Cirsium scopulorum.
- Article from:
- Ecology
- Article date:
- July 1, 1998
- Author:
CopyrightCOPYRIGHT 1998 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
When high juvenile mortality constrains fitness, selection should favor organisms that provision offspring with an environment conducive to survival (Pianka 1970, McNaughton 1975, Spira and Pollak 1986, Eriksson and Ehrlen 1992). Past research on provisioning in plants has focused mainly on allocation to offspring size through resource investment in seed reserves. After formation of the embryo, most angiosperms contribute energy resources to the endosperm, enhancing seed germination and the early growth and survival of seedlings (Gross 1984, Stanton 1984, Fenner 1985, Foster and Janson 1985, Haig and Westoby 1988, Galen and Stanton 1991, Hendrix and ...