Similarity of Seed Banks to Aboveground Vegetation in Grazed and Ungrazed Salt Marsh Communities on the Gower Peninsula, South Wales
| Autor: | S. R. J. Woodell, Irwin A. Ungar |
|---|---|
| Rok vydání: | 1996 |
| Předmět: | |
| Zdroj: | International Journal of Plant Sciences. 157:746-749 |
| ISSN: | 1537-5315 1058-5893 |
| DOI: | 10.1086/297398 |
| Popis: | Seed bank and aboveground species composition of four salt marsh plant communities on the Gower Peninsula, South Wales, were compared. Puccinellia maritima was the dominant or codominant species in the vegetation on all of the marshes investigated. Two of the marshes were ungrazed (Oxwich, Three Cliffs Bay), one lightly grazed by horses (Cwm Ivy), and one heavily grazed by sheep (Landimore). Two annual species, Salicornia europaea and Suaeda maritima, accounted for less than 15% of the plant cover in the four salt marshes, but their seeds accounted for over 60% of the seed bank in the Cwm Ivy, Oxwich, and Landimore marshes. The two annuals comprised 100% of the seed bank of the heavily grazed marsh, but only 13 6% of the total plant cover. Ungrazed and lightly grazed marshes had percentage similarities between seed bank and plant cover ranging from 1.7% to 12 3%, while the grazed marsh had a value of 13.7%. An unweighted pair group mean cluster analysis indicated that three of the four plant communities f... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|