Title | Soil seed banks associated with individual broom snakeweed plants |
Publication Type | Journal Article |
Year of Publication | 1987 |
Authors | Osman A, Pieper, Rex D., McDaniel K.C |
Journal | Journal of Range Management |
Volume | 40 |
Pagination | 441-443 |
Date Published | 1987 |
Call Number | 00244 |
Keywords | article, articles, Gutierrezia, effects on forbs and grasses, Gutierrezia,seed bank associations, Gutierrezia,vegetational zonation, journal, journals, seed bank,Gutierrezia association, soil, Gutierrezia, soil, seed banks, vegetational zonation,Gutierrezia |
Abstract | The influence of individual broom snakeweed (Gutierrezia sarothrae [Push] Britt. & Rushby) plants on the distribution of buried viable seed and the distribution of plants in the field was studied in a desert grassland in southern New Mexico. Surface soil samples collected at 3 distances from a central broom snakeweed plant were watered in pots in a greenhouse and numbers of each specie emerging were counted. Densities of each species were also determined in the field. Some species (Sporobolus flexuosus [Thrub.] Rybd., S. contractus Hitche., Descurainia pinnata [Walt.] Britton, and Dithyre wislizenii Engelm.) emerged in greatest numbers from soil collected in the zones closest and at the greatest distances from the broom snakeweed. Emergence of other species declined in relation to distance from the central snakeweed plant. In the field, grasses generally increased in relation to distance from the central broom snakeweed plant while the pattern for forbs was not consistent. |