Download - NERC Open Research Archive - Natural Environment ...

Furze Hill, near Pirbright Common, Surrey
August 1988
Altitude 54 m. Peaty, mesotrophic pond with white
water-lily and broadleaved pondweed, and
marginal bulrush, rushes, bog-myrtle and
Sphagnum, surrounded by Scots pine, birch and
sallow. Site for Ceriagrion tenellum, Erythromma
najas, Aeshna grandis, A. cyanea, Cordulia aenea
and Somatochlora metallica.
PHOTOGRAPH: R MERRITT
Colaton Raleigh Common,
Devon
August 1987
Altitude 90 m. Shallow spring-fed
gravelly runnel emanating from
underlying calcareous sandstone
in heathland dominated by
heather and western gorse, with
scattered Scots pine and birch.
The margins support black bogrush,
purple moor-grass and
rushes, and boggy areas contain
Sphagnum and round-leaved
sundews. This and the following
locality are sites for Coenagrion
mercuriale, Pyrrhosoma
nymphula, Cordulegaster boltonii
and Orthetrum coerulescens.
PHOTOGRAPH: R MERRITT
Mynydd Preseli, near
Brynberian, Pembrokeshire
May 1985
Altitude 145 m. Spring-fed runnel
over marl, containing marsh St
John's-wort, bog pondweed and
marginal Sphagnum species, in
an area of sheep-grazed heath
dominated by purple moor-grass,
heather and bilberry.
PHOTOGRAPH: R MERRITT
Cadover Bridge, near Lee Moor, Devon
June 1988
Altitude 216 m. Shallow pool in old china clay
workings, resulting from the silting up of a settling
pond, with emergent common cottongrass, soft
rush, unbranched bur-reed, floating sweet-grass
and lesser spearwort. Site for Ischnura pumilio,
elegans, Lestes sponsa, Libellula guadrimaculata
and L. depressa.
PHOTOGRAPH: R MERRITT