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

Sundon Springs chalk quarry, near Luton,
Bedfordshire
June 1990
Altitude 140 m. Seepages from disturbed spring
lines, forming shallow, sludgy pools in ruts and
depressions, dominated by hard rush, with jointed
rush, common spike-rush and stoneworts. Site for
Ischnura purnilio, I. elegans, Libellula depressa and
Sympetrurn stridaturn.
PHOTOGRAPH: S A CHAM
Hatchet Moor, New Forest, Hampshire
June 1990
Altitude 35 m. Shallow mesotrophic pond with bare
gravelly banks in area of heathland. The open water
contains beds of white water-lily, with waterplantain
and marsh St. John's-wort at the margins.
Site for Anax irnperator, Libeilula depressa,
Orthetrurn cancellaturn and Syrnpetrurn stridaturn.
PHOTOGRAPH: R THOMPSON
River Stour, Stoke by Clare, Suffolk
August 1988
Altitude 54 rn. Slow-moving river with rich aquatic
vegetation including yellow water-lily and
pondweed species, emergent common club-rush
and branched bur-reed, and marginal reed canarygrass,
common nettle and willows. Site typical for
Platycnemis pennipes, Calopteryx splendons,
Erythromrna najas and Ischnura elegans.
PHOTOGRAPH: H MENDEL
Pett Level, near Winchelsea, Sussex
August 1988
Altitude 2 m. Sheep-stocked coastal grazing marsh,
with a network of ditches which contain bulrush,
frogbit, duckweeds, flowering-rush and hard rush.
Site for Brachytron pratense, Aeshna rnixta,
Syrnpetrurn sanguineum, Coenagnon pulchellurn,
Lestes sponsa and, formerly, L. dryas (last recorded
1941).
PHOTOGRAPH: R MERRITT