Tag Archives: Butterflies

Chequered skippers are back: extinct English butterfly breeds for the first time in over 40 years!

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Last year I wrote about our involvement with the chequered skipper reintroduction project that’s happening in north Northamptonshire, and specifically the work of University of Northampton postgraduate researcher Jamie Wildman.  For the past month we’ve been sitting on some news that we were not allowed reveal: the reintroduction has been a success!  That is to say, adult butterflies emerged in May this year, having overwintered as pupae, and have been seen breeding in Rockingham Forest.  The secrecy was to prevent hordes of butterfly twitchers (buttwitchers?) descending on the site and possibly doing unintentional harm as they searched for the adults.  The population just isn’t large enough to be able to withstand that sort of pressure.

The BBC has run with the story this morning – here’s the link – and we have issued a piece via the university’s press team: the link to that is here.

In a time when the media is dominated by profoundly depressing stories about wildlife and the environment it’s great to be able to end the week with some positive news.  Here’s to the long-term success of this lovely little critter!

 

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Filed under Biodiversity, Butterflies, University of Northampton

Hunting the Chequered Skipper: an encounter with England’s latest species reintroduction project

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If you have been following recent conservation news on social media you’ll know that this week was an important one for invertebrates.  The Chequered Skipper, a butterfly last seen in England in 1976, has been reintroduced to the country as part of the Back From the Brink initiative.  The Chequered Skipper project is led by Butterfly Conservation and a team travelled to a site in Belgium earlier in the week where about 40 skippers were captured.  These insects were transported back to the UK where they were held overnight in mesh cages at a secret location in order to acclimatise them, then released into the wild.  The release was filmed as part of next week’s BBC Springwatch series – look out for it.

The exact location of the reintroduction is secret.  However I can tell you that it’s occurred in the Rockingham Forest area of north Northamptonshire, in habitat that (over the past couple of years) has been managed specifically for this reintroduction, in order to create a network of sites across which the species could disperse in the future.  This area was the last stronghold of the species in England prior to its extirpation.  No one knows why it went extinct here, but hung on and did well in Scotland, but it may relate to climate: 1976, as many of the middle-aged will remember, was a very hot, dry summer, and this butterfly likes it warm and humid.

Yesterday I had the privilege of seeing this reintroduction first hand when I visited the site with my colleague Dr Duncan McCollin.  Duncan and I are supervising a PhD student, Jamie Wildman, along with Prof. Tom Brereton, Head of Monitoring at Butterfly Conservation (BC), and the University of Northampton’s Visiting Professor in Conservation Science.  Jamie’s project will focus on understanding the habitat requirements for Chequered Skipper, and monitoring the success of the reintroduction.  I’m also hoping that it might be possible for Jamie to assess the role of this species as a pollinator of the plants it visits.  Butterflies as pollinators is a very under-researched area.

Here’s a shot of the Four Mus-skipper-teers* just before we set off to help BC volunteers to locate the skippers and record their behaviour:

Four Mouse-skipper-teers 2018-05-26 11.10.19.jpg

 

The day started unpromisingly.  It was cool and overcast, and little was flying except some hardy Common Carder Bees.  But around lunchtime things began to warm up and gradually the sun broke through and we started to see flying Lepidoptera that we excitedly chased, only to be disappointed by yet another Mother Shipton or Silver Y.  But no skippers.

As we encountered some of the BC volunteers who were also tracking the insects we were told that we had “just missed one” or that they “saw one down that ride, we marked the spot”.  One volunteer wanted to show me a photo of a Chequered Skipper that he’d just taken “so I could get my eye in”.  I politely refused; I wanted to see the real thing and didn’t want to jinx it with a digital preview.

Finally, our efforts were rewarded and we found the first skipper of several we later encountered.  The image at the head of this post is that butterfly, a sight that has not been seen in England in more than 40 years.  An exciting and privileged encounter.  The county Butterfly Recorder, David James (on the right in this next shot), is ecstatic that the reintroduction has occurred “on his patch” but also nervous at the responsibility it represents:

Skipper crew 2018-05-26 13.15.06

Later we spent time helping Jamie follow a female skipper who was showing egg-laying behaviour, moving slowly for short distances along a shrubby edge, occasionally nectaring on Bugle, and diving deep into the vegetation to (we hope) oviposit on grass leaves:

 

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Although I’ve over-cropped this next image of the skipper on Bugle, I thought I’d leave it as I like the different textures and patterns, and the slightly blurry ambience:

Skipper nectaring 2018-05-26 13.06.08

The primary aim of Butterfly Conservation’s project is to return a small part of England’s lost biological heritage.  But it’s about more than just the Chequered Skipper.  It’s also about understanding how managing a network of sites for this flagship species can benefit other organisms.  The wide woodland rides that have been created are packed with plant species, amongst them at least five grasses that could be used as caterpillar food sources for the skippers, plus more than 20 nectar sources were flowering that they (and other flower visiting insects) could use.  Those other insects were plentiful too: over the day I spotted five species of bumblebees, several different day flying moths, lots of Dark-edged Bee Flies, and a few different solitary bees and syrphids flies.  We heard calling cuckoos, and four different warblers: chiffchaffs, garden warbler, whitethroats, and blackcaps.  Red kites (another incredibly successful species reintroduction) floated overhead skimming the treetops as they their cried to one another.

Rockingham Forest is a lovely part of Northamptonshire, well worth a visit.  The Chequered Skipper will be a wonderful addition to its biodiversity.  Of course there are no guarantees that the reintroduction part of the project will be a success, but if it isn’t it won’t be because of a lack of commitment from the people involved.  If the population does become established then in the future the location will be made public and butterfly enthusiasts will be able to come and pay homage to one of the few butterflies with a pub named after it.

 

*You get the puns you deserve on this blog…..

 

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Filed under Bees, Biodiversity, Birds, Butterflies, Pollination, University of Northampton

Public evening lecture on butterfly conservation – Tuesday 16th May – free and open to all

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The University of Northampton has recently approved the appointment of Tom Brereton as Visiting Professor in Conservation Science.  Tom is well known for his work with Butterfly Conservation, the organisation that monitors British butterfly and moth populations, and promotes their study and conservation.  However he also works with other organisations including the charity MarineLife.

The first task of any Visiting Professor is to present a public lecture on their work, which Tom is doing next Tuesday 16th May; it is entitled:

“Butterflies and other animals: 40 years of adventure in ecology and conservation”

The lecture begins at 6pm in The Grand Hall, Newton Building, St George’s Avenue, Northampton, NN2 6JD

Coffee & biscuits will be served on arrival at 5.30pm

Following the lecture there will be an opportunity for networking and discussion over drinks & nibbles.  The lecture is free and open to all; for catering purposes please advise Val Howe if you wish to attend:

Email: valerie.howe2@northampton.ac.uk
Telephone: 01604 893005

(Though if you decide to come at the last minute that’s also fine!)

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Garden pollinators for PAW no. 4 – Gatekeeper butterfly (Pyronia tithonus)

Gatekeeper 3 - summer 2014

For my fourth contribution to Pollinator Awareness Week I’m going to highlight the Gatekeeper (Pyronia tithonus), a butterfly that I featured on this blog last year.  As I noted in that post, it’s fairly rare to have Gatekeepers in an urban garden which indicates that the shrubs and hedges grown by myself and my neighbours are providing the right microclimate for the adults.  In addition the overgrown lawns of some adjacent gardens give opportunities for egg laying as the caterpillars are grass feeders.

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Adult butterflies are very well camouflaged when resting with their wings folded. They take nectar from a range of plants in my garden but particularly love the dark, heavily scented infloresences of the buddleia variety pictured here.  They also visit the wild blackberries scrambling through the hedge that separates us from next door’s garden and probably pollinate those flowers.  Although it’s often said that butterflies are poor pollinators compared to bees, due to their general un-hairiness and habit of holding themselves above the stamens and stigmas in a flower, it very much depends on the type of flower.  We have an unpublished manuscript that I hope to submit to a journal later this year showing that butterflies are actually better pollinators of one grassland plant than bumblebees.

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Filed under Biodiversity, Butterflies, Gardens, Pollination, Urban biodiversity