Biological Recorders' Seminar 2020 - Sussex Biodiversity

As Storm Dennis started lashing the country with rain, I was heading towards Sussex Biodiversity's 2020 Biological Recorder's Seminar.

Fixing and Linking Our Wetlands

Last weekend, I had been exploring an old Uckfield Tithe map and noticed just how many ponds there were in the area back in the 1840s.  Coincidentally, my first conversation was with a representative of the Fixing and Linking Our Wetlands (FLOW) initiative. She had also been looking at old tithe maps to find out where ponds had been so they could restore them.  She has been receiving communications from landowners whose ponds have been restored saying that they are not experiencing flooding even though it has been an exceptionally wet year.

Highlights of wildlife recording in 2019

Many of the highlights are explained in Adastra 2019.

Tall Ramping Fumitory - Victoria Pleasure Grounds

A couple of items relevant to Uckfield and the local area are:

• In the Freshwater Fish report (page 29) a report about Dace in the Uck (not far from the bypass). They spawn in March/April and you might be lucky enough to see a silver flash as they jump over obstacles or try to catch a fly.
• In Amphibians and Reptiles (page 32) they thanked the Uckfield toad patrol "for their continued effort to protect toads crossing roads, to and from their breeding ponds.
• Vascular Plants (page 12) mentioned the new site for Tall Ramping Fumitory that I found during my survey of Victoria Pleasure Grounds, undertaken for the SBRS Village Green and Recreation Grounds project.

A couple that really struck a chord were:

• The comment this this year was Fungi Heaven - back in December I wrote about this in A wonderful year for fungi..
• The cuckoo split insect survey - I had a go at this when "cuckoo split" was visible on plants in the summer but want to do more this year.

Soil Biodiversity

This is a truly fascinating area,  I was aware of microrhizal fungi but there is so much more going on down there. Natural England had set up microscopes so we could see live millipedes, springtails and even a Tardigrade.

Ouse and Uck

At the first break, I stumbled on the stand for the Ouse and Adur Rivers Trust and bought some copies of their new book, "Ouse and Uck, sketch of a Sussex Catchment."

There was also a stand about the River Ouse Project comprising a poster (available from their reports page) with a wealth of information about Meadows.

Potters on the Heath

I very much enjoyed John Walters talk, illustrated with his wonderful photographs and drawings about potter wasps.

Notable Sussex Bees

James Power of Sussex Bees and Wasps Recording Group gave brief descriptions of 10 notable Sussex bees and wasps.

1. Macropis europaea - Yellow Loose-strife Bee
2. Ammophila pubescens - Heath sand wasp
3. Anthophora retusa - Potter Flower Bee - Seaford Head
4. Halictus eurygnathus - Downland Furrow bee - Lewes, Slindon
5. Andrena vaga - Gray-backed Mining Bee - Dungeoness, Rye Harbour
6. Cerceris quinquefasciata - The Five Banded Tailed Digger Wasp - High and Over
7. Nomada zonata - Variable Nomad Bee - becoming WIDESPREAD
8. Colletes cunicularius - Early Colletes - attracted to Willow
9. Bombus muscorum - Moss Carder Bee - flower rich grassland
10. Osmia bicolor - Red Tailed Mason Bee - downs, nests in abandoned snail shells

I haven't met any of these bees yet but I live in hope.

Botanical Recording in Sussex Churchyards

Girdled Mining Bee - Holy Cross - 27 April 2017

Helen gave a lovely talk on this, which featured one of my bee photos, taken in Uckfield's Holy Cross Churchyard. I wrote posts on my Early April, Late April, June and August 2018 surveys

One unexpected point was that, for finding unimproved grassland plants, Victorian churches were the best. Medieval ones were not so good.

National Bat Monitoring Programme

Philip Briggs outlined bat recording schemes and some of the results.

The Spiders of Sussex

Graham Lyons outlined highlights of 2019 intensive spider recording.

Back home

After all the talk of ponds and rivers, I decided to check our own pond. As I approached, there was a splash and a glimpse of a webbed foot. Our frogs have arrived and are spawning.

Revving up a Buff-tailed Bumblebee

Late this afternoon, the temperature was dropping and the washing clearly wasn't going to dry any more. So I went out, started gathering getting stuff off the lines and ... spotted a little black body in the grass.  I looked closer and saw that it was a Buff-tailed Bumblebee. I feared that (1) it had died and (2) it was 'our' big queen who has been visiting the garden since Christmas Day.

Buff-tailed Bumblebee Queen - 25 Dec 2019

As I carefully parted the grass to take a closer look, I realised that this Queen was smaller and a leg raised to warn off the annoying human told me that she was very much alive.

A different Buff-tailed Bumblebee Queen - 01 Feb 2020

I didn't like the idea of leaving her in the clammy grass where she could be trodden on so I picked a hellebore flower and scooped her up. As I raised her into the the warmer air, her wings started quivering.

Bumblebee after transfer to a warmer spot - 1 Feb 2020.

I carried her and her flower to a warmer, safer spot and put them down. She started feeding and I left them to it.  I was intrigued by the way in which she vibrated her wings and did a little Googling. According to a clip from the BBC's life in the Undergrowth, it is normal for bumblebees to cool right down in the night but, when they need to warm up, they can vibrate their wings until they are warm enough to fly.