Hydrocotyle ranunculoides growth dynamics and implications for management

Duenas, Manuel; Newman, Jonathan. 2010 Hydrocotyle ranunculoides growth dynamics and implications for management. [Speech] In: The 42nd Robson Meeting, St Ives, Cambridgeshire, 9-10 February 2010, edited by Jonathan Newman. 16.

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Hydrocotyle ranunculoides continue to cause many problems in UK waterways. The estimated costs of control are about £500,000 per annum. In order to understand how the species responds to the environment we have surveyed one of the oldest infested sites at Pevensey levels in Sussex. The plant has spread across many different sized ditches, with different nutrient levels, resulting in different plant morphologies and growth responses. We carried out this work, partly to enable prediction of biomass in uninfested sites, and partly to contribute to the Euphresco project in collaboration with various Dutch organisations, who share the same problems with various non-native species. Understanding how plants react to their environment when management activities are undertaken is also important for non-native species, and we have monitored the success of various management regimes for the control of H. ranunculoides. This talk will describe the effects of various nutrient regimes on the morphology of the plant and report on the success of various management activities in 2009.

Item Type: Publication - Conference Item (Speech)
Programmes: CEH Topics & Objectives 2009 - 2012 > Water > WA Topic 3 - Science for Water Management > WA - 3.4 - Develop novel and improved methods to enable the sustainable management of freshwaters and wetlands
UKCEH and CEH Sections/Science Areas: Acreman
Additional Information. Not used in RCUK Gateway to Research.: Please click on the OFFICIAL URL link to access the abstract/proceedings of the meeting.
NORA Subject Terms: Ecology and Environment
Related URLs:
Date made live: 26 Apr 2011 14:20 +0 (UTC)

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