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Disturbance theory

Ecology 7. Disturbing News for Bowling Clubs

In 1988, Grime, Hodgson and Hunt published their study called “Comparative Plant Ecology – A functional approach to common British species”, which on the face of it sounds like ideal bed time reading for insomniacs. However, the work these scientists carried out might make you sit up in bed and take notice when you realise how relevant it could be to the performance of your bowling green.

In this work, the authors state that vegetation that develops in a place at a particular time is governed by environmental pressures. These pressures may be categorised as stress, disturbance and competition (S, R and C) and that these vary in their relative intensities. Individual species develop their own growth strategies in order to deal with their own environmental pressures.

In Performance Bowling Greens, I introduced the concept of Disturbance Theory which is simply a way of thinking about and defining the growth strategies of each of the fine grass species we aim to grow on our bowling greens. Furthermore, by relating this Disturbance Theory to our greenkeeping calendar we can develop programs and strategies to help us create the environmental conditions that favour the species we know will produce the finest bowling surface. In the UK these are the bent and fescue grasses, but Disturbance Theory holds up for any environment, including the warm season areas of the world.

In a nutshell, Disturbance Theory encapsulates the main themes of the previous 6 articles (imaginatively labelled Ecology1 to 6) on bowling green ecology and attempts to become the go to tool for greenkeepers to help them manage their greens in a manner that heeds the importance of ecology in bowling green maintenance. In particular it should help give lay people an understanding of how to manage the bowling green in favour of a dominance of the finer grasses. If allowed to develop, the bent and fescue grasses will provide improved playing qualities and reduced vulnerabilities compared to

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