We recently had a talk by Robin Leech on monitoring rivers (particularly, the Wylye). Robin is an ecologist employed by the Wylye farmer cluster and he spoke about some of the work he does with his farmers, involving monitoring river pollution (chemical and sedimentary) and also re-naturalisation. A lot of what he spoke about theoretically applies to our river, the Nadder.
Many of us who are interested in river pollution (to stop it!) have all probably heard by now a lot on eutrophication, nitrates and phosphates, and there was some debate at the talk on the representativity of these indicators of the extent of the chemical pollution in rivers and also on the randomness of establishing a “safe” level of pollution. But Robin also spoke about something a bit novel: colourimetric analysis to find out where the sediments in the river come from, to target sediment run-off at source. Colourimetric analysis involves taking samples of sediment from the river, putting them in an oven to burn the organic matter and dry the grains and then put the dry remaining sample in a machine that analyses the colour - this allows to compare it with a reference collection of sediment samples from the surrounding areas of a river. He also spoke about their new project to restore the natural floodplains in some of the Wylye and the renaturalisation of the river system, which is something that will hopefully occupy many conservation organisations in the future. The straightened courses of rivers, with high banks, not only is detrimental to wildlife (for example, water voles) but also, in heavy rain, sends high quantities of water downstream, producing flooding in towns, and also sediments due to the erosion of the banks. Restoring the natural course of rivers not only will promote wildlife and natural processes and reduce sedimentary pollution, but it will also have the added benefit of reducing flooding in sensitive areas (the flooding needs to happen whether we want it or not, but if the river is allowed to flood a floodplain, then it won’t flood a town further down!). Inés López-Dóriga The Society meeting this November will be one of the rare occasions when I actually know something of the topic we shall hear about. A little over a year ago I paid a visit to a stretch of riverbank in the Wylye Valley to hear all about work being done by local farmers. They were running a programme of soil sampling and trials, with the aim of reducing levels of nitrate, phosphate and sediment run-off reaching the river and groundwater. The man I heard speak a year ago, Robin Leech, is coming to talk to us on the topic of Wylye Valley Farmer Cluster: monitoring rivers, at 7:30pm on Thursday 14th November (in the Victoria Hall on Tisbury High Street). Robin is a passionate naturalist, skilled in bird and invertebrate identification, who is making ecology into a career. He is employed by a local farmer and landowner and acts as co-ordinator for the group of farmers involved in this project work. We shall hear how the project is going, one year on from my visit. And we shall also hear, I am sure, about the Landscape Recovery Project initiated this year for the wider Wylye Valley, involving both the Wessex Rivers Trust and Wiltshire Wildlife Trust, that aims to restore the river to a more natural state and reconnect it to the floodplain. All of which should have huge benefits for biodiversity, alongside improving water quality and sequestering carbon. Dick Budden Come along to the film this Thursday 7th November for the viewing at 6pm of "Six inches of soil". Doors and bar open at 5:30. Free for members or £2 for guests. This is a story of courage, vision and hope; an inspiring story of three young farmers on the first year of their journey to heal the soil and help transform the food system. Working with communities, small businesses, chefs and entrepreneurs, they, and others like them, are leading the way to transform how our food is produced and consumed.
As the trio strive to adopt regenerative practices and create viable businesses, they meet seasoned mentors who help them on their journey. They are joined by other experts providing wisdom and solutions from a growing movement of people dedicated to changing the trajectory for food, farming and the planet. Mainstream “industrial” farming practices significantly contribute to soil degradation, biodiversity loss and climate change. Regenerative farming practices promote healthier soils, provide healthier, affordable food, restore biodiversity and sequester carbon. Regenerative farming techniques work in harmony with, rather than against nature. They keep carbon in the ground and create resilient systems in the face of climate uncertainty. Together with a focus on local food systems, shorter supply chains, the advantages are numerous. We get to know who is growing our food and how, farmers get paid a fair price and have the satisfaction of producing healthy food in a healthy environment. Dick Budden At this time of year hedges are looking at their best, as far as fruit is concerned. The winter storms and hedge cutting haven’t bashed it away, and the birds and animals haven’t started in earnest.
Following this summer’s wetter than normal weather, there is a good crop of rosehips, crab apples, and berries on blackthorn, spindle, hawthorn, wayfaring tree, guelder rose, rowan, elder and buckthorn. This (incomplete) list shows how important it is to plant a whole range of species when planting a hedge. Ancient hedges can have many more species than more recently planted ones, where the predominant species is often hawthorn, as it is cheap to buy and stock proof. Last winter, no hedges, except those by the roadside, were cut on Wallmead Farm, because it was too wet to get any tractors into the fields without creating mud and ruts for months and the damage would be too much to remedy easily. Over the years, I have learnt that cutting should be as late as possible, and certainly not before Christmas, to let the birds and animals have time to eat their fill. Conservation subsidies help with the cost of hedge cutting if it is only done every second or third year, so that is what I have done too. The reason for this is that the flowering and therefore the fruit only happens on growth that is older than a year old. Yearly cutting results in no fruit at all. When a tall and wide hedge is cut back, the result can look awful! With a flail (which all hedge cutters are) large stems are torn with a jagged edge and the hedge looks as if it has been mauled, a sight which I am sure is familiar to you all. The hedge does recover when spring comes and new shoots appear. Before hedge cutters (going back 50 years or more), most hedges would have been laid on a rotation of about 15 years; hedges were radically thinned, and the remaining stems were cut at the base halfway through and bent to about 45 degrees to form an impenetrable barrier. This essentially is the advice to follow from The People’s Trust for Endangered Species, who have done research on this subject: to cut each two or three years gently, so it increases in height and width slowly, and then to lay it once every 15-20 years. There is a subsidy to help pay for this very slow and expensive job. Peter Shallcross One evening last week Esther and Matthew Phillips kindly showed us around their nature reserve which they started two and half years ago when they moved to Swallowcliffe.
With a torrential downpour half an hour before we arrived we were fortunate that the sun came out and the warmth returned. As we gathered, we were shown two occupied Housemartin nests under the eaves as well as a very active Hornets' nest further along. Although Hornets are not aggressive and rarely sting they often cause problems in roof spaces by chewing plasterboard and roofing felt! Esther and Matthew are members of The Wiltshire Small Rewilders. It is a volunteer-run network providing support and knowledge sharing for small rewilding projects (of up to 50 acres) across Wiltshire and the surrounding area. One of the founders is Jonathan Thompson who is well known to our society. Esther and Philip have planted about twenty native trees in their first winter and have steadily increased the number of differing habitats for wildlife, with extensive swathes of grasses - home to two deer which happily spend most of their days in the reserve, and a perfect home for small mammals such as field voles which attract bird of prey. There are perches provided for them, an important detail as there aren't many large trees around the field. Also, they created an additional dewpond which will take a couple of years to become fully established but is already attracting more bird life. With vines, soft fruit, a forest garden and plenty of space to grow vegetables the Phillips are developing a reserve which will also support their enthusiasm for sustainable living. Our Chair especially enjoyed sampling a Szechuan pepper, with a lovely tangy long lasting flavour! We were invited in for refreshments at the end of the evening and had a lovely time chatting and seeing photos of the reserve taken during the spring and summer when it was awash with colour. Andrew Graham will lead us on a walk around Arne RSPB Reserve where we will pass through varied habitats of heathlands, woods and wetlands with views over Poole Harbour. Arne is a terrific place for wildlife and BBC Seasonwatch has been broadcast from here a number of times, it is so good. It would therefore be a shame not to see a good part of its varied habitats. So, weather permitting, we will aim to spend the day here and we will be walking 4-5 miles.
Please let us know if you are planning to join the trip and where you will meet us. No dogs. Meet at the Nadder Centre car park at 9:30am or at the Arne car park at 11:00 am (OS Grid reference SY972 878) or What3Words wings.poetic.crown. The car park (charges for non- RSPB members) is located on the right at the beginning of Arne village from the Stoborough direction. Distance, Difficulty and Footwear: There is relatively easy walking on paths and tracks with some slopes. Stout shoes should suffice unless wet. Bring binos, a packed lunch and refreshments. Anticipated end time: Conclude at Arne by 3pm returning to Nadder Centre by 4pm. https://www.rspb.org.uk/days-out/reserves/arne/location Please can we have some helpers at the Community Field (below the Skate Park, Tisbury) next week for a 6pm start. You will need to bring some gardening gloves and if you have a gardening fork that makes it easier. We have found that ragwort numbers have diminished with the regular pulling over recent years, so it shouldn't take long. This is in preparation for the hay cut and removing ragwort is necessary due to its toxicity to animals.
On Saturday 6th July, we have a visit to Wild Woodbury, Bere Regis, with a walk of approximately 4km/2.5 miles across uneven ground around this rewilding community project guided by Dorset Wildlife Trust Ranger, Seb Haggett. There is a portaloo on site at the car park.
If you are used to walking poles it will be worth bringing them. Walking shoes/boots are advised and please bring a packed lunch and refreshments. The weather is looking good for Saturday, with dry, sunny spells forecast. There are ticks on site, along with longer vegetation, so trousers are recommended. Also bring along any wildlife spotting equipment, binoculars, cameras etc. Please let us know if you are planning to join the trip and where you will meet us. No dogs. Meet at the Nadder Centre car park at 9:30am or at 10:30am up a short track off Southbrook Road, opposite Eldon Road in Bere Regis. https://maps.app.goo.gl/qXbC482vgk4pZ6Qt6 What3words: permanent.kings.chef Those of you that came along to our meeting in January will recall the fascinating presentation by Rob Farrington of the work he has been leading for the past two and a half years to re-wild the 170-hectare site, south-east of Bere Regis. The plot acquired by Dorset Wildlife Trust was In September 2021 with plans to return what was previously intensively farmed arable land to its natural state. The goal was to create an example of sustainable land use, contribute to tackling the climate and ecological crises, reduce high nitrate levels in the area (and prevent them from entering Poole Harbour), and to engage the local community. In the first year of the project, the land was allowed to naturally regenerate: there was an immediate increase in biodiversity and abundance, with the site list reaching 1300 species. During 2023, the second year of the project, work was carried out to ‘re-naturalise’ the headwaters of the River Sherford that run through the site. More information: https://www.dorsetwildlifetrust.org.uk/blog/tag/wild-woodbury Anticipated end time: Returning to Tisbury by 3:30pm On Saturday 8th June we have planned a field trip to Ham Wall RSPB Nature Reserve near Glastonbury with Andrew Graham and Debbie Carter as your guides. The focus will be on birds but there should be many other wildlife to see. Bring binoculars if you have them. No dogs.
Please let us know by Thurs 6th June evening whether you plan to go on this trip and whether you will car share from the Nadder Centre or meet us at the Reserve because we need to know numbers in advance. Without this information there is risk that this field trip could get cancelled. We do require a booking for each field trip in our programme. Meet at the Nadder Centre car park for a departure at 9.30am or at the Ham Wall Nature Reserve BA6 9SX for 10:30-45am. The car park is at OS ST44893959. What3words biggest.sharpened.clots https://www.rspb.org.uk/days-out/reserves/ham-wall/location Anticipated end time: Departing Ham Wall at 3:00pm to arrive back at the Nadder Centre by 4:15pm. Distance, Difficulty and Footwear: Approximately 5 km/3 miles on flat gravel paths which may be a bit muddy if there has been recent rain. Good stout shoes should suffice rather than wellingtons. Climbing steps may be necessary to enter hides. Bring a packed lunch and refreshments. This Saturday CPRE are celebrating Earth Day with three interesting talks in the beautiful surroundings of Langford Lakes. Earth Day talks
Lynn Trigwell Lynn is a Landscape Architect who has worked in both the private and public sectors. Since 2018 she’s been Head of Climate and Environment for Wiltshire Council. She oversees a wide range to services delivered by the Council in partnership with local communities and local interest groups, landowners and managers, statutory bodies and 3rd sector organisations such as Wiltshire Wildlife Trust and the RSPB. These areas include Archaeology, Landscape, Urban Design and Ecology and in February this year Climate was added. Lynn will be speaking about some of the activities that her teams are working on and share some of the exciting new pilot work they are supporting on the council’s own landholdings. Balancing the challenges and opportunities for our natural environment in Wiltshire. Alex Atkinson Alex oversees the management the Wiltshire Wildlife Trusts 20 southern reserves, including lowland bog, ancient woodland and everything on the successional scale between the two. Restoring natural processes - practical examples for a managed landscape. Peter Thompson Peter Thompson originally trained as an agronomist, advising farmers for 10 years. He then went on to work for the Game & Wildlife Conservation Trust, as their Farmland Ecology adviser, giving guidance to land managers across UK farms. He covers a wide range topics on countryside issues in the talks he gives and leads many training events related to the management of habitats and the wildlife that lives there. He ran the pilot scheme looking into the potential of “Farmer Clusters” for Natural England – which of course has now been widely adopted across the UK. Now “retired”, amongst many other activities, Peter is Chair of the Salisbury & District Natural History Society. The countryside’s future – my shot at seeing the wood through the trees |
Photo: Avocets (Izzy Fry)
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