tag:blogger.com,1999:blog-1290723885428192841.post2741297976698359202..comments2024-03-22T12:08:16.167+00:00Comments on BSBI News & Views: Escape to the Orchid Field: Pete's Big Day Out Louise Marsh, BSBIhttp://www.blogger.com/profile/07853015015164789727noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1290723885428192841.post-36467326927158483722022-05-19T10:20:21.473+01:002022-05-19T10:20:21.473+01:00We have just completed a survey of Green-winged Or...We have just completed a survey of Green-winged Orchids on "First Church Meadow" which is part of Martin' Meadows a Suffolk Wildlife Trust reserve. This is also a long-term project started in 1979. The number of flowering spikes in 5 metre square areas is recorded and the whole meadow is surveyed (the method is fairly involved so I won't go into detail here) and the results display nicely in a spreadsheet representation of the meadow. I have yet to process this year's results but the yearly average is around 2500 spikes. Given the ratio above the population could be as high as 15000! A similar method is used for Pyramidal Orchids, Early Purple Orchids and Snake's-head Fritillaries. For the latter I would estimate that there are even greater numbers of juvenile and predated plants that are not recorded. However the method does provide an interesting measurement of flowering trends over the years which shows some very interesting results.Paul Chapmanhttps://www.blogger.com/profile/11962353363226901293noreply@blogger.comtag:blogger.com,1999:blog-1290723885428192841.post-21524273303232427882022-05-13T13:36:00.398+01:002022-05-13T13:36:00.398+01:00Triangulation seems the way to go when the plants ...Triangulation seems the way to go when the plants are not always obvious; 94 instead of the 15 that they were in flower. Jo Cnoreply@blogger.com