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Soil Seed Banks in Coniferous, Fire-Adapted, and Southwestern U.S. Ecosystems: An Annotated Bibliography
 

Summary: Soil Seed Banks in Coniferous, Fire-Adapted, and Southwestern U.S. Ecosystems:
An Annotated Bibliography
Judy Springer and Rob Hastings
Ecological Restoration Institute
Northern Arizona University
Flagstaff, AZ
December, 2004
1. Abrams, M. D., and D. I. Dickmann. 1984. Apparent heat stimulation of buried seeds
of Geranium bicknellii on jack pine sites in northern lower Michigan. The Michigan
Botanist 23:81-88.
Geranium bicknellii dominates vegetative cover the first year after fire on many
jack pine sites in northern lower Michigan, but in subsequent years it disappears. To test
whether heat from fire was responsible for this behavior, experiments using seed buried
in the soil of different aged jack pine sites were initiated. Germination of buried geranium
seed only occurred in heated treatments from 3- and 35-year-old sites; unheated controls
produced no germinants. The apparent heat requirements for germination of buried
geranium seed from sites in northern lower Michigan contrasts with other Lake States
studies and suggests ecotypic differences in germination behavior. Unheated soil from the
35- and 55-year-old sites produced significantly greater numbers of grass germinants than
did heated treatments. Many important members of the plant community recorded on

  

Source: Abella, Scott R. - School of Life Sciences, University of Nevada at Las Vegas

 

Collections: Environmental Sciences and Ecology