Download the Management Plan - Carlisle City Council

Ragwort – this is in fairly low quantities found in grassland areas and is pulled by hand each year
before seeding in July
Rosebay Willowherb- found mainly but not exclusively around the Tarn edge, campsite area &
roman wood. Pulled by hand each year before seeding.
Canadian Pond weed – found growing in Tarn. Works carried out in past to mechanically
remove have been largely unsuccessful causing spreading of weed in longer term. (dealt with in
more detail under Open Water section)
Blue Green Algae – found in the Tarn, see section under Open Water for details
Grey Squirrels – passing regularly through the Tarn Trapping began in 2010 with assistance
from Brampton Red Squirrel Group.
Action
Remove invasive species such as Ragwort and Rosebay Willowherb
Carry out NVC survey’s to obtain baseline data for meadows
Trap grey squirrels periodically depending on number of sightings
Fungi
The site has an impressive array of fungi and guided walks have often been held to look at these.
Two groups visited the site to study these in 2010 and records from these collections were added
to the species records.
Action
Update species records
Fish
The site is not currently stocked with fish and species present have been added over the years.
The main species are Pike and Perch with eels also present. Evidence is from Fish catches by
anglers and fish remains found around the Tarn.
Beetle
Records have been found from the 1980’s (Tullie House) indicating that the Tarn is home to a
rare (red data book 3) beetle (Macroplea appendiculata). A reed beetle whose larvae feed on the
roots of water plants, mainly on alternate-flowered milfoil and fennel-leaved pondweed. It is one
of the few beetles that spends’ its complete life cycle underwater. It occurs in less than fifteen
10km tetrads in the UK. It was re-found at Talkin Tarn by a German professor in the early
2000,s but not formally recorded.(record from member of staff) Tullie House records show
approx a hundred species recorded at Talkin Tarn, many of which are beetles recorded during the
early 1900’s.
Butterflies/Moths (Lepidoptra)
There are 8 species of butterfly regularly seen at Talkin Tarn, mainly around the wildflower
areas. Small Copper’s tend to be seen around the Tarn edge.
A moth catching evening was held at Talkin Tarn on 21 st Aug 09.
Small Copper Butterfly
Action
Gather data on previous moth surveys and establish species
list
Dragonflies/Damselflies (Odonata)
The common blue damselfly is used as the symbol of Talkin
Tarn due to the sheer number of them that emerge at the Tarn
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