Tag Archives: invertebrates

Earthworm ID weekend with the Earthworm Society of Britain

There are 27 species of earthworms in the UK.  We think.  Surprisingly, for such a familiar animal, they are substantially under-recorded and the Earthworm Society of Britain is trying to address that.  They are very keen to recruit new earthworm recorders – I attended a weekend of training complete with Earthworm Society membership and ID book which cost me only £15!

Everybody has seen earthworms in their garden or mooching inexplicably across the pavement.  I knew about soil dwelling earthworms which make tunnels and leave casts, but I had no idea that earthworms can also be found in rotting logs or among leaf litter.  So to learn about the ecology and ID of earthworms was completely new to me and quite fascinating. Continue reading

Bats and glow worms at Beeston Castle with Cheshire Bat Group

If you’ve not been to Beeston Castle near Tarporley, I highly recommend you check it out.  It’s a splendid, proper castle on the top of a hill, magnificently ruinous, with a precipice on one side and a moat on the other.  And it’s a groovy orange colour as it’s made from the local sandstone.  Smashing !

Even better, not only is there a castle on the site, there are caves too, and caves mean BATS !

This is the site where our lonely lesser horseshoe was first recorded to hibernate.  He/she was later joined by a second individual, so we can say we have a population of two lesser horseshoe bats in Cheshire.  At least some of the time 🙂

In the summer, there are roosts of four species of bat on site.  Cheshire Bat Group record numbers of these roosts each year and we find that they fluctuate quite a bit.  This time, I didn’t see any brown long-eared bats but numbers are always low and this year we were a bit later in the summer than usual so this isn’t necessarily cause for concern.  We did see 60 pipistrelles – the site seemingly has a mixed roost of common and soprano pipistrelles, although we don’t know whether they occupy different areas once they get inside the roosting space.  The received wisdom is that sopranos and commons like to roost separately.  Because soprano pipistrelles smell.  They do, honest !!!

We also counted 45 Natterer’s bats which again isn’t as high as usual, but we think it is a maternity roost – in good weather years like 2014, maternity roosts tend to break up earlier, as the young bats develop faster and so learn to become independent sooner.  When a maternity roost breaks up, some of the bats may stick around in the same place whilst others disperse to other roosting sites, often, but not always, in the local area.  So we are not worried about our Natterer’s at all as they may just have moved on a bit earlier than usual.  We do know of at least one other Natterer’s roost nearby.  One day we will get organised and count them both at the same time so we finally know how many bats we have !  This may be easier said than done though as the other roost is on private land and we are not sure how much the owner likes bats….we are grateful that English Heritage love their bats and are happy to let us in out of hours to count them.

You don’t have to go into the site to see bats, as you can get a good view from the gatehouse – so if you want you could always go and see for yourself – be careful though, as the gatehouse fronts directly onto the road and it’s busier with traffic than you might think for such a tiny lane.

Last year the bat count team saw glow worms on the hill leading up to the castle, so we went to have a look and *almost* convinced ourselves we could see some.  Until I realised at least some of what I was looking at and telling myself were glow worms were actually white flowers – !  Yeah. Maybe next year I will get lucky.

Great crested newt survey, Middlewich (2014)

153 ponds.

One of 153 ponds on site

That’s a lot of ponds for any kind of survey, let alone a great crested newt survey potentially needing at least four visits to each and every one !  Happily, the new eDNA sampling technique means that many of these ponds will be visited just once, as they are sufficiently far away from the proposed infrastructure to be of low concern.  That leaves about half of this number needing the standard survey and this is where I came in, as a member of the large survey team tackling the work. Continue reading

Terrestrial molluscs course with FSC Bio.fell

It’s always a treat to visit Malham Tarn, and even better when I get to play with slugs and snails. Wait, what ?

Yes, you heard me right, slugs and snails are not just for complaining about in the garden, they are a fun group to study and quite accessible, especially now the test version of the new slug key is available from the Field Studies Council.

slug crawling over moss Continue reading

Environmental Statement chapters for major infrastructure project (2013)

I have recently completed two chapters for the Environmental Statement of a major transport infrastructure project.  I’m not allowed to say which one, as I’ve signed a confidentiality agreement, but let’s just say it is a very big scheme indeed with lots of very interesting ecological receptors, and has been quite a challenge to work on.  I’ll update this post to give more detail as and when I’m allowed to !