Showing posts with label Holly Blue. Show all posts
Showing posts with label Holly Blue. Show all posts

Sunday, 16 October 2016

The Big Butterfly Count 2016

The 2016 Big Butterfly Count has just published its results. According to the Big Butterfly Count 2016 Results page, 36,400 people carried out 38,233 15-minute counts from July the 15th to August the 7th.

Holly Blue, 25 July 2016.

Considering just the counts I did in our own garden:
  • 2014: 10 counts, 10 species of butterfly, 66 individual butterflies
  • 2015: 12 counts, 13 species of butterfly, 108 butterflies as well as some moths
  • 2016: 10 counts, 8 species of butterfly, 61 butterflies and a 6-spot burnet moth.
So this year's count was lower than previous years.  It seems that others had the same experience.  The results page says:

The average number of individual insects of the 20 target species seen per 15 minute count during big butterfly count 2016 was the lowest recorded since the project began in 2010.

Large White, 25 July 2016.
In my garden, nearly half the butterflies I counted were large whites. This species was slightly more numerous than last year, whereas numbers of the others had dropped dramatically.

Butterflies recorded during 12 counts in our Uckfield garden.

In 2015, gatekeepers had been the most numerous butterfly in both: my counts (47 individuals) and nationally. However this year this species had tumbled to a miserable 4th in both.  I've certainly missed seeing them dancing in our front gateway.

Speckled Wood, 31 July 2016.
On the other hand another dancer, the Speckled Wood, did really well in my 2016 counts - it came joint second with the Meadow Brown. I counted 11 individuals this year, compared to 2 last year. The national count recorded a small (12%) increase.

Red Admiral, 21 July.
Sadly, most of the big colourful butterflies were missing from our garden counts this year. No Peacocks, Small Tortoiseshells or Commas - all of which I counted in 2014 and 2015. We did have 3 Red Admirals - but that compares to  8 last year and 4 in 2014. Nationally numbers were up a by 70%.

An Guardian article on the Big Butterfly Count says:

“The drop in butterfly numbers this summer has been a shock,” said Richard Fox of Butterfly Conservation. “When we have cold, wet summers, as in 2012, we expect butterfly populations to plummet, but that wasn’t the case this year."

“The summer months were warmer than usual, yet most Big Butterfly Count participants saw fewer butterflies. Perhaps the very mild winter had a negative effect, or the cold spring, or perhaps the impacts of intensive farming and pesticides are really hitting these common species now.”

We can only hope for better next year.

Saturday, 8 August 2015

The Big Butterfly Count 2015

Between the 17th of July and the 9th of August, people all over the country counted butterflies for periods of 15 minutes. This citizen science is backed by The Butterfly Conservation people. This year’s results can be found on the web site.  

Me, counting butterflies, notebook in hand.
I was pleased with the results I got in 2014 but this year was so much better.
  • 2014: 10 counts, 10 species of butterfly, 66 records
  • 2015: 12 counts, 13 species of butterfly, 108 records as well as some moths.
Although I've done more counts, the average number of butterflies per count is 9 compared to 6.6 last year. All the numbers in this post are for butterflies only, although the moths were pretty and interesting too.
Attractive 6 spot burnet moth.
Here is a graph showing how many butterflies I recorded.

Butterflies recorded during 12 counts in our Uckfield garden.
The top three species were the same as last year:
1. Gatekeepers, which took an even more commanding lead than before
2. Meadow Brown
3. Large White.

Meadow Browns mating.
Otherwise, there were some differences. Last year, Ringlets and Small Tortiseshells were in the top 6. This year, I had no Ringlets and only one Small Tortiseshell. On the other hand, Red Admirals had held their position in the rankings.

Small Tortiseshell.
In both years, I saw one common blue butterfly. It has become less common over the last few years due to the reduction of habitats suitable for its food plant, bird's-foot trefoil. I've often found this little character clinging to a flower first thing in the morning. It is very hard to persuade it to let go of its perch. Most of the blues we see are Holly Blues.

Holly Blue.
Then I read an article about Commas, which explained that they had adapted to the decline in their formerly favourite food plant, hop, by feeding on nettles.This got me thinking about caterpillar food plants. Next year, I will be looking out for caterpillars on the following plants.

Food TypeButterflies
GrassesGatekeeper
Meadow Brown
Ringlet
Small Skipper
Speckled Wood
 BrassicasLarge White
Small White
Nettle, hopComma
Peacock
Red Admiral
Small Tortiseshell
Bird's-foot trefoilCommon blue
Six spot burnet
BrimstoneBuckthorn, Alder Buckthorn
Holly BlueHolly, Ivy, Dogwood, Gorse

Monday, 11 May 2015

Boothland Wood

It's the early part of May, which means it's time to go and see some bluebells.  We have a bluebell wood, Views (Williams) Wood, just a few hundred yards from where I live. I looked round my old friends: the bluebells, the strange stumps and the kingcups on the May Day bank holiday weekend. Today, I visited Boothland Wood, owned by Uckfield Town Council.

Tall trees in Boothland wood.
Although I had never visited this wood before, it has been much in my thoughts recently. Within the next few years it will be engulfed by vast new housing estates.  There is also a Facebook group discussing the situation here. At a Neighbourhood Planning event that we held on the 7th of March, several people mentioned the lovely bluebells in Boothland Wood and their concerns that the wood would be spoilt by too many pairs of feet or the addition of inappropriate pathways.

The wood itself is charming. Although, like Views (Williams) Wood it is an ancient woodland carpeted with bluebells, the atmosphere is very different.  The wood is much smaller but it has a light, airy feel. Partly this is because the trees are different. Views (Williams) Wood is full coppiced sweet chestnut with some sturdy oaks.  Because it was once part of a grand house's park and adjoins a housing estate, a mixture of odd species such as sycamores and rhododendrons have been planted or have found their own way in. To my inexpert eye, Boothland seems to be full of hornbeam and elegant beeches soaring skywards.  It appears to have far fewer 'interlopers'.

Light slanting into the wood.
Because Boothland is surrounded by fields, light seems to bounce in from the slides, playing beautifully with the textures of bark and greenery.

Looking outside of the wood, you can see a farm. Seeing wool caught on the wire seems especially poignant, knowing that the sheep that once grazed there will soon be replaced by houses.

Wool caught on a fence and farm equipment in the background.
On a brighter note, the plans suggest that the farm and oast houses will be kept.

Farm and oast house.
At the moment, the woodland floor is thick with bluebells. A myriad of small paths thread through allowing a curious animal or photographer to get right into the flowers without doing any damage.  As I found my way through the wood a small group of great tits squabbled amongst themselves with little concern about the lumbering human watching them.  Butterflies flitted between the sunlit fields and flower rich woods.

Female holly blue butterfly.
The spring succession of flowers is well under way. I came too late for the wood anemones but there are bluebells, cow parsley, red camion, lesser celandine, herb robert and so many more. The delightfully named, goldilocks buttercup was a particular treat.

Goldilocks buttercup and lesser celandine with the bluebells.
I fear that the paths and the flowers surrounding them will be trampled into dust and the birds will find nesting much harder once the wood is surrounded by thousands of people and their cats and dogs. So it was a lovely but rather troubling visit. The wood seems quite delicate and will need considerable care if it is to survive the new estates.

Note: The outline planning application is here - you need to scroll down the page and hit accept to see it.  It is too late to make comments on this stage of the application.

Wednesday, 13 August 2014

The Big Butterfly Count 2014

It's not often that I get an excuse for wandering round the garden for quarter of an hour but the Big Butterfly Count gave me one. Between the 19th of July and the 10th of August, people all over the country counted butterflies for periods of 15 minutes. This fine example of citizen science is backed by The Butterfly Conservation people. This year’s results can be found on the web site.  

I did 10 counts in our Uckfield garden. Here is my top five countdown ...

At number 5, the Small Tortoiseshells. There were just 3 in my counts but, as a Guardian article explains, their numbers have been very low over the last few years and have recovered due to the wet weather earlier in the year, which boosted the nettles that feed their caterpillars.

Small Tortoiseshell on a dahlia.
We have a joint number 4 this week, with 4 sightings each: Red Admiral and the Ringlets. The Red Admiral was probably the first butterfly I became aware of as a child, as it visited the asters and buddleia in our London garden. I’ve only become aware of the Ringlet this year. The open wings are the colour of fine dark chocolate and it was only when I started looking at the butterflies properly for the count that I realised that they were not Meadow Browns.

Ringlet
At number 3, with 11 records, Large Whites appeared to dance around the garden.  Lovely to see but, in previous years, their caterpillars have wreaked havoc by chomping through nasturtium leaves.

At number 2, with 14 sightings, modest Meadow Browns fluttered round marjoram during the earlier weeks of the count.


Finally, in the lead with 24 sightings, orange and brown Gatekeepers, seemed to explode from beneath my feet almost every time I walked across our shaggy grass.

Gatekeeper

We have had a super variety of butterflies in the garden this year.  This chart shows the totals from my 10 counts.



Sadly there are some absences such as Holly Blue and Small Copper. We can only hope that they’ll be back another year.