Algal diversity at Kennack Sands
While walking toward the coast path from Lizard recently I got talking to a fascinating botanist who told me that the slope he was looking at was home to twelve different species of clover, if I remember correctly. He also pointed out some other plants, many of them rare and most of them with spectacular names. It made me think about our inshore algal diversity so when I found myself at Kennack Sands last weekend I decided to do a one minute search to see what I could find.
I recorded ten species of seaweed adjacent to and in a small rockpool on the midshore. There were plenty more but sixty seconds flies! The only green seaweeds I saw were Ulva lactuca (sea lettuce) and Ulva intestinalis, aptly known as gut weed which becomes apparent when you see it floating in a rockpool. Brown seaweeds dominated the area in terms of mass which is typical of the midshore.
Sizzling Summer Reads
Holidays are a great time to get to explore a wildlife topic that is a little bit removed from the nature on our doorstep. Here are 3 books I have enjoyed recently that I would recommend.
I was gripped from the outset by Mark Avery's Inglorious – Conflict in the Uplands. We can be fortunate to see hen harriers on The Lizard, generally in the winter. They are breeding birds of moorland, land which is now frequently the preserve of grouse shooting. Ostensibly this is a book about hen harrier conservation, but inevitably the majority of the book is the story of red grouse and the people who shoot them for sport. Is it possible to arrive at a solution where all these - man, grouse, heathlands and harrier can co-exist? I read the first half in particular with the appetite reserved for runaway novels. I think that the mark of a great book, film or album is that you find yourself revisiting it in your head in quiet moments, and I have done that a lot with the tale that this book tells. It is a wonderful example of how complicated nature conservation can be, and the ongoing battle between economics and the well-being of the habitats and species that we are all charged with the custodianship of. Mark Avery worked for the RSPB for many years and is now an outspoken wildlife blogger and activist (http://markavery.info/). He is easy to read and ushers us along on a story packed with science and statistics to make his case for the banning of driven-grouse shooting. Read it and make your own decisions – but it is a frightening statistic to know that there is enough suitable habitat in England to support around 300 pairs of hen harriers, but there are but a handful of successful breeding attempts every year.
An altogether mellower read ideal for a beach break anywhere is Spirals in Time – The Secret Life and Curious Afterlife of Seashells by Helen Scales.
Did you know that the stuff that limpet teeth is made from(geothite) is the hardest biological material known? That 9 out of 10 shells spiral clockwise? That cone shells use some of the most deadly toxins in the world to capture their prey? Or that people have woven silk from the threads that root seashells to the sea floor? Fascinating stuff and easy to read
And if you still have more holiday reading time then try The Beauty in the Beast by Hugh Warwick. Warwick is obsessed with hedgehogs, but in this book he embarks on a quest to find similarly eccentric characters with a fascination for other groups - from bees to badgers, owls to otters. A lovely insight into the lives of those who care passionately and devote their lives to the conservation of some of the UK's flagship species. Warwick commits to having a tatoo of the animal that he discovers to most engaging (other than a hedgehog of course) – crazy.
Happy reading, and thanks to Cornwall library service for letting me borrow all these !!
Natural and Cultural Heritage on the Lizard
When we think about the Lizard, we tend to think about a landscape that seems primarily natural – full of wonderful plants and animals and featuring some of the most spectacular coastal scenery in the UK. However, this is also a landscape that is formed by the activities of people and communities over millennia. The natural heritage of the Lizard is also part of its cultural heritage, forged through the history of human settlement and activity including farming and fishing. These activities have left behind both tangible and intangible cultural heritage. Field systems across Goonhilly Down, the old life boat station and the lighthouse at the Lizard, and the remains of the serpentine workings at Poltesco are all examples of tangible cultural heritage – objects that have been created by generations past and are in some way preserved, put to use, or repurposed in the present. Sometimes less well preserved are examples of intangible cultural heritage such as net mending, folklore and myths, or traditional forms of music making. Meanwhile, much of the Lizard’s cultural heritage lies beneath the seas in the shape of the wrecks of ships that have foundered on its shores. Understanding more about the Lizard’s tangible and intangible, terrestrial and submarine cultural heritage can contribute to our appreciation of the Lizard as a diverse landscape with a deep history forged together by human and natural forces.
Published: July 2016
Author: Professor Catherine Leyshon (nee Brace)Associate Professor of Geography, University of Exeter’s Penryn campus
“So, what exactly is your job?”
This is a question I’ve been asked many times since I donned the mantle of “Survey and Monitoring Trainee” at Natural England. Tom, my fellow trainee, and I find ourselves in the rather enviable position of spending three months involved in a wide and varied plethora of tasks touching upon varying aspects of the management and conservation efforts within a National Nature Reserve.
Before I moved here I was promised by anyone I discussed my impending placement with that I was relocating to one of the most beautiful locations in the country, with more wildlife and biodiversity than I could shake a stick at. I will readily admit that, one month in, I have not been disappointed. With tasks ranging from surveying marsh fritillary habitats, herding Shetland ponies, discovering new colonies of the Red Data Book Species land quillwort (Isoetes histrix), and failing to register historic ones, maintaining invisible fences, nest-watching Cornish choughs, partaking in guided woodland walks and observing barn-owl ringing we’ve got more than just a flavour of what conservation on the Lizard is all about.
Great news: Lizard chough Nora and her new mate now have chicks!!!
Earlier this season we had some sad news when the resident male chough ‘George’, who was quite a colourful character (LINK: http://the-lizard.org/index.php/article-archives/birds/640-farewell-george-an-unexpected-goodbye-starts-a-new-chapter-for-the-lizard-choughs ), vanished without a trace. After four weeks on her own, as the only chough left on The Lizard, Nora managed to attract a new mate. This was a surprise to us local volunteers as most of the choughs were, at that point, based in west Penwith and we didn’t expect any of them to move our way in time for this nesting season. But, as new breeding pairs began to establish out west it pushed some of the younger unpaired birds out and 3 young males came our way. We waited on tenterhooks, would they reach us?
It’s fledging time....
Right now hedges, trees, heath and grassland as well as nestboxes are all of a flutter as the breeding season gets into full swing. Birds are busy diving into all manner of hidey holes and secret places, beaks packed with insect food for their hungry chicks. Egg-laying season is typically between late March and May, although some species can have many broods with chicks into August. For a small garden bird such as the greenfinch, it can take over two weeks for the eggs to hatch and a further two-three weeks for the chicks to fledge the nest. Just before baby birds are ready to tentatively extend a wing, wiggle a tail feather and take flight for the first time, they leave their nest or fledge. Fledglings then spend a couple of days on the ground developing their final flight feathers.
The fledglings will appear fully feathered (with perhaps some downy fluff here and there) and spend these days hopping around in broad daylight – hence why so many members of the public are convinced they need rescuing.