A roost feature on an Oak (c) Sonia Reveley |
As it is National Tree Week it seems appropriate to submit a blog about
the Swanton Novers Woodland Bat Monitoring Project. As you are well aware,
woodlands are very important to bats. They provide foraging opportunities and
roosting sites all year round for these special flying mammals. The
distribution of woodlands over the years has changed and many are now fragmented
and scattered. Their importance is undeniable though as they provide a haven for
wildlife and support a variety of flora and fauna.
Noctule (c) Hugh Clark |
Trees to bats are like what houses are to us. Where we have a choice of
a semi-detached, flat or a bungalow, trees will provide a range of different roost
features from loose peeling bark, cracks, cavities and fissures to rot holes
and woodpecker holes. And like our homes they provide bats with shelter, warmth
and a place to sleep and bring their young up. A well-established woodland will
contain many trees with these features, all with different conditions (humidity,
temperature and light), which will give the bats the freedom to move to
different roosts throughout the year depending on their needs.
Transect surveying with volunteers (c) Jamie McDonald |
“I
have been kept busy with volunteering work on a number of nature reserves since
moving to Norfolk ten years ago, or should I say indulging my interest in
natural history! One of the reserves I work on, and perhaps my favourite, is
the ancient woodland that is the Swanton Novers NNR.
These woods have been an important part of the Norfolk
landscape for hundreds of years, initially for economic reasons and latterly
for their tremendous wildlife value. I have helped here with many tasks, from
coppicing and growing young hazel plants to carrying out wildlife surveys.
Hence
one day I was asked if I would like to help out with surveying bat activity in
the woods.
Keith and Alex fixing a static detector to a tree (c) Sonia Reveley |
It
all started with walked transects through the woods, initially with an
experienced bat worker, and moved on to analysing the results of the transects
on my computer to identify the bat species. It moved on to positioning static
detectors and analysing those results with even more software.
The
next big step was to help with catching the bats using mist nets. With that
came the chance to hold a bat in my hand and see just how tiny a Pipistrelle
really is. Barbastelles were tagged with radio transmitters, which lead to
tracking the tagged bats around the woods and wider countryside, and the more
sedentary and less exhausting locating of roosts and emergence counts.
I am
now confident in my ability to identify the different species and have gained
enough information from other colleagues and background reading to confidently
lead bat walks for the ‘general public’.
What
do I enjoy about the work? Four things;
I love being out in the woods at night with
the snuffling badgers, barking deer and roding woodcock.
It
gives me a real buzz to think that I am helping to ensure the survival of this
wonderful wooded place.
I
feel I am making a real contribution to the knowledge about bats and how they
use the woodland environment.
It has triggered
a fascination with all aspects of the life of bats; flight, echolocation,
hibernation and all the rest. “
Keith Fox
Swanton Novers Woodland Bat
Project Volunteer
Further information
about the project and monthly updates about the project called Swanton News can
be found at www.bats.org.uk/swanton.
If you would like more
information about the project or would like to be involved and can spare a few
hours helping with bat surveys, call analysis, walks, talks and community
events, please contact the Volunteer Coordinator Sonia Reveley at
SReveley@bats.org.uk or ring 07788 226528.
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