At present, our forests and many across much of Europe have a medley of different species, and this has been the case for many hundreds of years.  They have survived minor fluctuations in climate and weather.  However, now climate and weather are changing in significant ways.  There are more extreme weather events, ranging from unprecedented rainfall to drought and periods of very high temperatures.  Winters seem to be be warmer and wetter, summers hotter and drier. Consequently, there is concern that many tree species being planted today will not be able to survive in the conditions that they are likely to experience in 50 or a 100 years time.  Species like the European Beech (Fagus sylvatica) are likely to struggle (like many did in the heat wave of 1976).  The root system of the beech is shallow, and though it has large roots spreading out in many directions, it cannot access water that may be present at deeper levels in the soil.   Though it is not known how native trees might adapt or be able to respond to a changing climate, it is possible that the number of tree species per km2 able to survive through to the next century may well fall by a third to a half in a warmer climate (depending on how quickly the warming occurs). Examination of some 60 plus European trees species at University of Vienna by Johannes Wessely et al suggested that the English or Pedunculate Oak (Quercus robur) may be a species that could cope with changing climatic conditions. It seems that native UK Oaks are genetically diverse, and this gives rise to variation and the potential to adapt to changing conditions.  Oak is wind pollinated and its light pollen can be dispersed over long distances, which promotes outbreeding and genetic diversity. Whilst the oak has always been valuable as a species for :- Timber production : it is used in furniture making and in the past thousands of oaks were used in the building of ships such as the Mary Rose. Carbon sequestration / storage - it is long lived and has a large above ground biomass Biodiversity : it provides a ‘home’ for many species of animals, plants and fungi. It offers food and shelter for many invertebrate species, numerous insects and spiders); its leaves often show the ‘scars’ of their feeding activities. Its bark is an ideal substrate for many lichen and bryophyte species (epiphytes). The roots of the trees establish mycorrhizal associations with various fungi. Now, the Oak may prove to be valuable in a warmer world as a species for timber production and reforestation projects.  The Oak’s ability to support other plant, animal and fungal species would also be important in terms of biodiversity and resilience..   Forests with a smaller number of tree species are thought to be less resilient to climate change and less biodiverse.   [caption id="attachment_41217" align="aligncenter" width="675"] A solitary oak[/caption]

The terms veteran tree or ancient tree are often used. But what is a veteran? A veteran tree may be defined by a combination of factors: its age its size; its condition; its history; its position. Read more...

Woodlands.co.uk is 'republishing' this blog, as contact details for the Jones family are now available and several people have expressed an interest in having a walking stick 'custom made'.  The blog originally appeared in 2014. Contact email address is pj451324(at)gmail.com Peter Jones and his sons make walking sticks on a serious scale using sticks they come across in the woods, where they do their forestry work.  They use chestnut, silver birch, oak and hazel.  But they avoid using willow, as it goes brittle once it's aged.  Apart from finding the right stick to work on they need a steamer for bending the tops of the walking sticks and a good supply of sealant and varnish for protecting the finished sticks. "Honeysuckle makes the best twist sticks" advises out Peter Jones, who comes across a lot of twisted stems in Kent and East Sussex.  As a result, he is able to trade these with fellow stick makers in more northern English areas - they give him carved tops for walking sticks in exchange for good twisted shanks.  But even among twisted sticks there is variety: the slower growing trees such as holly and oak twist more slowly whilst the fast-growing chestnut twists quickly.  Though he also corrected me pointing out that the maker of walking sticks should really be called a "stick dresser" Read more...

Recently, woodlands.co.uk asked me some questions about ‘buying a woodland’.  So here goes : How did you find your woodland? As a local, I found the woodland by walking with my partner and our dog. My partner’s family lived in the village for a number of years. Were there surprises you found in the first few weeks of owning your wood? The biggest surprise for me in the early weeks was the expansiveness of my woodland, every time I would visit I would find something different. This could be a different tree species,a path or a bird. Did you set up a campsite and how did that go?   One of my goals was to camp at least once a month, starting with my first month of ownership in January! Camping has given me the opportunity to spend more time in the woods, not just mornings /  afternoons and appreciate the peace and quietness. How have you managed the woodland?  Management so far has been cutting overstood hazel coupes for regeneration and collecting good firewood for home. Rotten or poor-quality wood has been collected and stacked for wildlife habitats, especially oak! The hazel rods have been for craft activities ,with the brush piles being left for insects. What are your future plans for the woodland?  Future plan for the woodland is to introduce different native species of tree. I have around 20 saplings I have potted on at home, that will eventually be moved into the wood. With the regeneration of hazel, the crop I intend to use to create deadwood hedges for protecting young trees from deer. How have various members of the family got involved in the woodland?  All of my family have visited the woods and helped in some way. Whether it be firewood, coppicing or bringing food to have with a hot drink!   What practical projects have you done or planned for your woodland?  How did you do these?  My partner and I both enjoy wood craft such as pyrography and woodturning. A lot of oak limbs that have come down during storms have been used to make presents for friends and family, and decorations for our home. What advice would you give to someone buying a small woodland?  My best bit of advice would be to wait for the woodland that has what you want. Woodlands come in all shapes and sizes; and getting the right patch can make your experience a lot more enjoyable. In terms of flora, what have you learnt in the woodland? I have learnt that woodlands like mine (broadleaf) provides a home for hundreds of plants, flowers and insects. The humid conditions in oak woodlands provides ideal conditions for rare / hard to find flowers such as orchids and so many types of fungi and lichens. David 

‘The Fall’ in the eastern United States has been colourful and plentiful this year.  There have been bumper crops of acorns, maple seeds and pine cones.  It is a Mast Year.  The trees have produced enormous numbers of potential offspring. These seeds and fruits will have significant 'knock on effects' in the ecosystems for some years.   Beeches and oaks can release so many seeds that they significantly increase the organic content of the soil and its nutrient value.  This fuels fungal and microbial growth. Small mammals feast on the acorns / mast and their numbers increase.  They, in turn, are food for foxes, owls and other predators *.   Quite what drives a mast year has long been a cause of speculation.  Ideas have included  masting evolved to overwhelm seed predators (mice, squirrels etc.) and thus ensure that at least some seeds survive to germinate and grow on.  fluctuations in nutrient availability affect the trees and flower / fruit production environmental prediction - that masting occurs in those years when seeds are likely to have good weather for sprouting in the following Spring.   even sunspot activity has been invoked Recently, a database [MASTREE] was created of mast years (for Beech and Norway Spruce) that extends back centuries.  This has enabled scientists to explore the environmental prediction idea, that is, whether masting is correlated with climatic events and occurs when seeds are likely to have favourable weather for germination and growth in the Spring after their production. On comparing the data with climate records, they found masting events [in beeches] correlated with climate patterns associated with the NAO - North Atlantic Oscillation, i.e. changes in air pressure between Iceland (low) and the Azores (high).  A “positive” NAO phase favours both masting and subsequent seedling growth; that is warm wet winters promote seed production and dry springs favour seedling growth.  Quite how the trees turn such climatic events into ‘signals’ for masting is another matter. Not all are convinced however. Some argue that the resources used up in producing so many seeds / fruits mean that the trees are exhausted and it takes time for these resources to be replaced and for the tree to flower and fruit fully again.   Professor David Kelly has a somewhat different hypothesis related to weather .  He suggests greater warmth in the previous growing season(s) may be the trigger.  Quite how the trees ‘remember’ the warmth that they have experienced is not known; but one thought is that it is due to what is termed ‘epigenetic marking’.  It is possible that the DNA of the genes that affect flowering is changed by the warm temperatures.   The activation of particular genes can be altered by their DNA undergoing methylation - a process where methyl (-CH3) groups are added (or removed) from the DNA.  Further information on masting and climatic effects on trees - visit science.org * [Sadly, a Swiss study found good masting years were later associated with a rise in tick-borne disease.]  

Ecology is concerned with understanding the relationships between organisms, and their relationship with their environment.  This can involve how climate and soil influence the growth and development of organisms. Ecological studies may focus on a particular organism (autecology) or specific areas. One area that has been intensely studied is Wytham Wood, which lies just outside Oxford.   The area includes ancient semi-natural woodland, secondary woodland, grassland and ponds. It is a designated SSSI, where some 500+ plant species and 800+ lepidopteran (butterfly and moth) species have been recorded. Records of bird populations go back some sixty or more years (with the work of David Lack and others); other ecological studies with long-term data include those on badgers,  and also work on climate change. Wytham Wood belongs to Oxford University. Historically speaking, it is possibly the most intensely studied woodland in the world.  Read more...

Monks Wood is an area of woodland in Cambridgeshire.   It has been subject to extensive and intensive ecological studies for many years.  The site is described by Natural England as one of our essential lowland woods with ash and field maple trees; also to be found is the rather rare wild service tree.  The ground flora is typical of that of ancient woodland, within the wood there are also ponds and streams.  Monks Wood is a National Nature Reserve. Next to the reserve there is former agricultural land.  Two fields have been studied to understand the process of natural woodland development.  One field was formerly two acres of grassland that was ‘abandoned’ (in 1996), the other was a four acre barley field (that was left to stand in 1961).  For natural regeneration of woodland to occur there needs to be existing woodland nearby.  The transition of these fields to ‘new’ woodland has been monitored over the intervening years - through field surveys of trees, measurement of vegetation height, remote sensing via LIDAR.  Read more...

Checking through my emails, I came across a link sent by a friend to one of the winter talks in the program offered by the Botanical Society of Scotland - specifically “The Scottish Uplands: how to revive a degraded landscape” by Dr Helen Armstrong.  The talk was live-streamed but was also recorded and is available here.   Dr Armstrong spent 24 years at the Nature Conservancy Council, the Macaulay Land Use Research Institute, Scottish Natural Heritage and Forest Research carrying out research and advisory work. The following is an attempt to summarise some of the key features of her informative and enlightening talk. Read more...