The limited natural regeneration of trees in Scotland has contributed to the long term decline and loss of native woodland.  Indeed, Scotland now has one of the lowest levels of native woodland in Europe; circa 4%.  The regeneration of trees / woodland is restricted by browsing by deer.  Any natural regeneration is largely confined to areas where the deer are excluded.  Deer numbers have increased significantly over recent decades, despite various management programmes.  Estimates suggest that the red deer population might now be as high as 400,000. Red deer no longer have any natural predators.  The wolf was eradicated from Scotland more than two centuries ago.  Some have suggested that wolves should be reintroduced as part of a rewilding program to help control deer numbers.  Across Western Europe, the wolf population is estimated to be 12,000+.  The Netherlands, which is more densely populated than Scotland, has a resident wolf population. Researchers at Leeds University have suggested that there could be significant benefits to the re-introduction of the wolf to Scotland.  Using a predator / prey model, they suggest  the presence of wolves would:  reduce the red deer numbers  allow natural tree and woodland regeneration to occur. Increase carbon dioxide uptake due to the regenerated woodland   The study estimated that a wolf population (of 157 animals) could result in the ‘locking up’ of one million tonnes of CO2 each year. The study acknowledges the potential objections that might be raised by livestock farmers, deer stalkers and the public at large.  However, other advantages that might accrue from the introduction of wolves, for example : increased ecotourism contribute to the NetZero2050 program a reduction in deer-related traffic accidents a reduction in Lyme Disease (ticks on deer can carry the disease)  a reduction in then number / expense of deer culls Details of the Leeds research : https://besjournals.onlinelibrary.wiley.com/doi/10.1002/2688-8319.70016

Woodland covers some 1,000 hectares of the Ashdown Forest, that is roughly 40% of its area. Much of the woodland is relatively young. However, the forest’s capacity for regeneration / renewal is being damaged by overgrazing.  Local deer populations have grown and now represent a problem. Deer browse / graze on vegetation, shoots, flower buds and foliage are stripped off plants.  Young saplings are damaged and bark is eaten, especially when food is scarce.  Consequently, tree and shrub regeneration is limited.  Other species are affected by the feeding of the deer, either through loss of niches or food.  Among those at risk are small mammals and certain butterfly species. [caption id="attachment_34368" align="aligncenter" width="650"] deer damage[/caption] Damage is found in woodlands in many parts of the country, as deer populations have increased in recent times. In the 1970s, the deer population was estimated to be around 450,000 as compared to today’s estimates of over 2 million.  The National Forest Inventory highlighted that "40 percent of British forests have ‘unfavourable’ levels herbivore damage, which limits the survival of young trees and threatens biodiversity".  Apart from deer damage, there is damage by the grey squirrel populations. Deer browsing can : Prevent natural regeneration Affect biodiversity Affect woodland resilience Reduce food availability to the herd which can lead to starvation / loss of condition Deer are also hosts to ticks.  The ticks may be infected with Borrelia burgdorferi  bacteria and transmit them to humans, resulting in Lyme disease. Deer  also contribute to collisions with motor vehicles; more than 450 deer were hit by vehicles on Hampshire roads last year .  In Scotland,  government agency figures indicate that deer vehicle collisions  [DVCs] have almost doubled between 2008 and 2020.   Sadly, people are injured or killed in DVCs, and the repair cost to vehicles runs into millions. The solution to the ‘problem’ is not clear cut. Culling [the selective killing of animals] to control deer populations is one way in which numbers can be reduced, and the damage to woodland mitigated.  However, this approach has been met with opposition by many, including animal rights organisations.  There is the argument that whilst a reduction in deer numbers might fix some problems in the short term, the subsequent increase in plant growth and food availability might lead to increased breeding by the remaining deer and numbers would then increase again.  Also, unsuccessful or inaccurate shooting leads to animal suffering, mutilation and / or a lingering death.   Some might advocate rewilding and the introduction of apex predators (such as the wolf, lynx, wild cats*) as a means of reducing numbers but that might raise other problems! Deer have been 'part and parcel' of woodlands since mediaeval times, when the forests were used for hunting. In the Ashdown Forest, the number of red deer declined during the C17th,  and poaching was a factor in their decline. Fallow deer numbers also declined. [Fallow deer were introduced to England by the Normans around 1100 AD.]  The deer population roaming the forest has increased significantly in the recent decades, and now there are the relatively recently introduced species, muntjac and sika deer.   There are six species of deer in UK woodlands – the two native species, the red deer and roe deer and fallow, muntjac, sika and chinese water deer make up the four non-native species. The problem of over grazing is not unique to the Ashdown forest. For example, deer numbers in Scotland have doubled in recent years to almost a million since 1990.   Finding sustainable (and humane) solutions to the large numbers of deer is difficult. * Wildcats were once widespread in Britain, but by the end of the 18th century, they were to be found only in the northern regions. [caption id="attachment_34415" align="aligncenter" width="700"] Remnants of birch woodland near Loch Muick are subject to browsing by red deer (especially in the winter), so temporary fences have been put in place to allow for regeneration.[/caption]

A few years ago I started deer stalking with my wife, Roxanna, for three reasons:- we wanted to do something useful to help control the burgeoning deer population, we like eating venison and we wanted to do something active in the country side. In the absence of the natural apex predators, such as Lynx, wolf and bear, deer are now threatening to become a serious nuisance in some parts of the country.   Deer have co-evolved with predators which have now been eliminated, so the deer are at risk of 'eating the bottom out' of British Woodlands; preventing the natural regeneration of trees for future generations. This creates a need for culling of selected deer but it needs to be done in a way that is safe and humane Read more...

Forestry is a surprisingly important part of the Swiss economy and the sector employs 90,000 people, with 1.3 million hectares of Switzerland being given over to forestry.  To put this in a UK perspective, it is about the same amount of forestry land as Scotland and is a little more than England (which has 1.1 million hectares of forest).  The reason why Switzerland, smaller in size than England, has as much forestry land is that a much higher percentage of the countryside is given over to trees - Switzerland has 31% tree cover which is much more than England's 9% and is high even compared to Scotland which only has 17%.  In fact European countries are generally more forested than the UK - with Finland at a whopping 76% tree cover and even France is 27%, so Switzerland stands at just above the european average. Read more...