Constraints to tree invasion on a nutrient-rich site during old-field succession

Surveys and experiments addressed the factors controlling tree seedling establishment during old-field succession in east central Illinois. Seed bank density and its concentration beneath woody plants matched patterns observed for seed rain in fields last cultivated in 1968 and 1984. 736 seed traps, monitored monthly for 3$1\over2$ years, collected over 54000 seeds of over 30 plant species. Bird dispersed species were more strongly clustered than wind dispersed species. Seed inputs per unit area are predictable at a coarse scale but not at a fine scale. Densities of naturally established seedlings reflected estimates of seed input, but also varied with vegetation.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Burton, Philip Joseph

• Biology, Botany
• Biology, Ecology
• Agriculture, Forestry and Wildlife

Statement dc:rights

• Copyright 1989 Burton, Philip Joseph

Language dc:language

eng

Identifier

AAI8924779
(UMI)AAI8924779

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20264