Showing posts with label becks. Show all posts
Showing posts with label becks. Show all posts

21 November 2014

Making space for nature in the South Lakes



Nature conservation in the Lakes - nothing furry in sight

What springs to mind when you think about ‘nature conservation’?  Maybe it’s something exotic but vague about tigers or snow leopards - or, closer to home, fuzzy ideas about counting dormice or monitoring butterflies.  The sad fact is that most of the rangers’ nature conservation work is much more prosaic. As a cynical ex-colleague put it: ‘We just cut down trees and build fences.’  There’s a lot of truth in that, but our work’s no less important for it!

For the past few weeks some of us have been hard at work on Hoathwaite Farm, near Coniston, creating a new wildlife corridor through the fields. Our starting point was an old, neglected hedgerow next to a beck. ‘Neglected’ in that it hadn’t been managed by laying for many years, so it had developed into a gappy line of trees. Although trees are important components of lots of ecosystems, the real value of hedgerows lies in the way they provide a continuous, sheltered ‘corridor’ through the landscape, which small mammals and invertebrates can use to move around and live in. The low, bushy growth also provides perfect nest sites for lots of birds.   

The gappy, neglected hedge before we started the project
To restore the hedgerow and maximise its value for wildlife, we felled the ‘overstood’ hedge trees in a process called coppicing – most broadleaved trees will spring back to life when you cut them down with lots of vigorous new stems, so they’ll form the perfect basis of a hedge in a couple of years.  Although it can look a little stark initially, and may seem counter-intuitive, cutting down trees and allowing them to coppice creates a constantly changing variety of different stages of growth throughout the landscape, ensuring that the right conditions are available for lots of different mammals, birds and other creatures – all of which require different things. We’ll also plant new hedge plants between the coppiced trees, to make sure it’s a continuous line, and we always leave the best couple of trees in the line upright as 'standards' to grow on into maturity, for the habitat they provide and to enhance the landscape.  


The old neglected hedge before...


...and after, with trees coppiced and two new fences.

 Fencing - not glamorous but great for wildlife

The only problem with coppicing and hedge-planting on a farm is that the young, soft growth of the trees makes an irresistible treat for sheep and cows.  Livestock will choose tree leaves and fresh twigs over grass, so we needed to fence the hedge-line to ensure that the trees grow successfully.  With its location on a small beck, fencing this hedge created a win-win situation, as fencing stock away from the beck is also great for the ecosystems in the stream, and for the water quality of the whole catchment.  Stopping the stock accessing the beck will reduce the amount of silt washing into the lake where they trample the banks (not to mention sheep poo!), and allow the natural vegetation of stream-sides (‘riparian edges’ in conservation terms) to grow unhindered.  In turn, the increased growth of vegetation slows the movement of water through the catchment, which can help alleviate flooding; and the wild, overgrown strip within the fence line becomes a whole new ecosystem, bustling with wildlife.  We should be able to see wildflowers and native shrub species growing, and butterflies and birds flitting along the beck-side - not to mention all the mice, shrews, beetles and bugs hidden away beneath the plants.

The beck protected within the fence line.

 A team effort

We spent a week coppicing trees (and producing about 8t of firewood), and then built two fences of nearly 200m in length, so we couldn’t have done it without the help of the South Lakes Volunteer Group, and our colleagues in the ranger team – particularly the upland path team, who are down off the fells for the winter and provide vital muscle and technical ability on jobs like this.  

Luke S, Sarah and Stuart hard at work.
  

We also worked closely with the tenant farmer, Sam; developing good relationships with the farmers so that we work in co-operation with them is one of the most important parts of the rangers’ job.  We need to work together to ensure they can run successful businesses while also providing the other benefits we all need or want from the land; like increased biodiversity, clean water, carbon storage, or a place to go for a revitalising walk. 

One of the other less glamorous sides of nature conservation is dealing with funding, and this work was made possible thanks to Sam’s ‘Higher Level Stewardship’ agreement with Natural England – government funding for farmers to help them achieve environmental benefits, and to ease the difficult balancing act between food production and all those other factors.  

The finished job with two 'standards' left in the line.
  
Behind the scenes


So while it might look like we’re just ‘cutting down trees and building fences’, the rangers are hard at work behind the scenes building relationships with farmers and our colleagues in other organisations, using our understanding of ecosystems and river catchments to plan effective projects, getting our heads round the grant schemes and sourcing funding, and organising the team and our great volunteers to ensure we get the work done.   

The hard graft’s done at Hoathwaite now – we’ve just got to plant the new hedge trees in a couple of weeks.  We’re all looking forward to next spring when we can head back and see the new plants bursting into leaf and the coppice stools sprouting fresh buds; and beyond that, when the hedge has grown back and the vegetation gets nice and high inside the fence, creating a brilliant new home for wildlife.  It might not be tigers, but its nature conservation Lake District style, and we love it! 

29 August 2014

Salmon songs

Inspired by gardener Pete’s themed musical offerings on the Hill Top blog, the South Lakes rangers have spent an unhealthy amount of time discussing ranger-themed music, and we’ve come up with some pretty good (and eclectic) Lake District playlists for our journeys in the truck – from Ain’t No Mountain High Enough by Diana Ross to Into the Valley by The Skids, and from Travis’ Why Does It Always Rain On Me? to Bob Marley’s Hammer (the perfect accompaniment to a fencing job).  


I've been on my usual hobby horse, scouring my music collection for songs that reflect ecology as well as landscape, and sadly, haven’t found much.  Strangely, the only two I came up with are about the same species: salmon.   


                                                                      Atlantic salmon - image wikipedia

Neil Young’s Will to Love and The Chemical Brothers’ Salmon Dance couldn’t be more different in terms of style; the former was recorded on acoustic guitar on a tape deck  in front of an open fire, while the latter is a techno/hip-hop mash up (and features the odd bit of typically hip-hop language, so please be aware that it may not be suitable for work, children or sensitive ears if you choose to search for it).  They’re similar, though, in that they’re both bizarre pieces of music in which the salmon has a voice – Neil Young sings verses from the salmon’s imagined perspective through an underwatery vocoder effect, and ‘Sammy the Salmon’ provides guest vocals for The Chemical Brothers. 

                                           Will to Love by Neil Young on Youtube - external link

So, what is it about salmon that inspired these major musicians to write about them?  Well, as the songs show, they’re pretty incredible fish.  Sammy the Salmon tells his rapper friend that ‘all my peeps spend part of their life in fresh water, and part of their life in salt water;’ they have an intricate and awe-inspiring life-cycle, spending anything from one to eight years as juveniles (or ‘parr’ ) in the rivers where they're born – such as the Crake and Leven locally, and the becks above Coniston Water and Windermere.   (On a slight tangent, it's been suggested that symptoms of loneliness have been observed in salmon parr, giving a whole new dimension to Will to Love, which as well as featuring the thoughts of a salmon, develops into Young's meditations on love and relationships and finally seems to consolidate the two in a surreal last verse as the salmon looks for a companion with whom to 'sway together, our tails together, and our fins and minds.'  Maybe it's best to just listen to it.)

When salmon mature they head out to sea, changing their physiology in the estuary to cope with seawater and to become better camouflaged for the ocean, and spend a few years in the seas around Greenland.  Finally, they head back to the river of their birth – their ‘natal river’ – using senses beyond our comprehension.  Sammy says: ‘Most of our friends find their home waters by sense of smell, which is even more keen than that of a dog or a bear.  My family also rely on ocean currents, tides, and the gravitational pull of the moon.’  

               
                                    Atlantic salmon heading back upriver. Image - animalspot.net                                         


Neil Young takes over the story with his much more poetic imagining of the salmon’s thoughts:

When the water grew less deep
My fins were aching
from the strain
I'm swimming in my sleep
I know I can't go back again.

They re-adapt to freshwater and struggle upstream to lay their eggs before most die, although some will complete two of these huge cycles.  As Young observes ( And now my fins are in the air, and my belly's scraping on the rocks / And I'll keep swimming till I stop), the huge fish (up to 75cm long) swim literally as far as they can upstream in to tiny becks, before laying their eggs in gravel beds.  It’s during this epic journey that salmon perform their famous ‘leaps’ up waterfalls, powering out of the water over and over again in their attempts to get up to their spawning grounds.

                              Atlantic salmon leaping a waterfall.  Image - atlanticsalmontrust.org

The past few decades have seen huge declines in salmon and their fellow migrant, the sea-trout, due to overfishing at sea, and pollution and changes in river management inland.  In the south Lakes, the National Trust works in partnership with organisations that are doing great work to improve catchments for migrating fish and other wildlife.  The South Cumbria Rivers Trust and the Coniston and Crake Catchment Partnership promote land management practices that reduce pollution in our local becks, lakes and rivers, and carry out practical work to ‘de-canalise’ waterways that have been straightened and homogenised in the past, in order to allow the development of gravel beds and other natural niches for salmon and all sorts of aquatic life to use. 

Weirs and dams have also blocked some migration routes so fish passes are now a common sight on the region’s rivers, allowing salmon and sea trout to bypass the man-made blockages and access their home waters.  Adult salmon undertake their epic migration back to their spawning grounds in the autumn, so if you head to the region’s low waterfalls on the right becks, you might be lucky enough to see salmon on the last leg of their huge journey – you’ll have to do a bit of research and get off the beaten track to pick the right spot!

For a better chance of spotting them, fish passes on the River Kent in Staveley and near Sizergh are hot spots for salmon viewing.  Don’t forget to put some Neil Young or Chemical Brothers on the stereo to learn even more about these amazing fish – you might even find yourself doing the salmon dance…

If you’d like to know more about Lake Windermere and especially the history and ecology of the Claife woodlands, why not join ranger Paul on one of his guided walks as part of the Great British Walk festival? Meet at Ferry House (where the ferry docks) at 2pm on Sunday 14 September, Friday 26 September, Sunday 12 October, or Friday 17 October.