Rapid changes in the vegetation of a shallow pond in Epping Forest, related to recent droughts

Panter, Jonathan and May, Andrew (1997) Rapid changes in the vegetation of a shallow pond in Epping Forest, related to recent droughts. Freshwater Forum, 8, pp. 55-64.

[img]
Preview
PDF (The document's language is English .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (294Kb) | Preview
Official URL: https://www.fba.org.uk/journals/index.php/FF/artic...

Abstract

Over much of Britain, 1995 and 1996 have been perceived as drought years. To evaluate the impact that local climatic conditions are having upon successional changes in higher vegetation (macrophytes), Speakmans Pond in Epping Forest was surveyed and mapped in 1996. The results are related to previous vegetation surveys carried out in 1989 and 1991. In 1989 the dominant marginal vegetation was floating sweet-grass Glyceria fluitans, which also covered a major part of the main body of the pond. Other abundant species included soft rush Juncus effusus, reed mace Typha latifolia and yellow flag Iris pseudocorus. A small (central) area of open water contained bladderwort Utricularia vulgaris and white water-lily Nymphaea alba. A similar plant coverage was found in 1991, with a dominance of floating sweet-grass along the shallow eastern edge. A marked change in the pond was found during the 1996 survey of vegetation in July, when the pool was dry. The major plant cover now consisted of creeping bent Agrostis stolonifera, with isolated clumps of Yorkshire fog Holcus lanatus around the edges; both are terrestrial grasses found on land surrounding the pond. Rushes (Juncus) had increased their distribution round the margins of the pond, and the patch of yellow flag noted in 1989 and 1991 was not found in 1996. The deeper trenches were also dry, but a small patch of white water-lily remained adjacent to one of the trenches.

Item Type: Article
Title: Rapid changes in the vegetation of a shallow pond in Epping Forest, related to recent droughts
Personal Creator/Author:
CreatorsEmail
Panter, Jonathan
May, Andrew
Refereed: No
Journal or Publication Title: Freshwater Forum
Volume: 8
Page Range: pp. 55-64
Date: 1997
ISSN: 0961-4664
Issuing Agency: Freshwater Biological Association
Uncontrolled Keywords: Aquatic plants; Drought resistance; Temporary ponds; England; Speakmans Pond
Subjects: Ecology
Limnology
Item ID: 4578
Depositing User: Hardy B Schwamm
Date Deposited: 25 Nov 2010 12:26
Last Modified: 29 Sep 2011 16:14
URI: http://aquaticcommons.org/id/eprint/4578

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...