So we are starting to disregard the principles of good deer management on the basis of fellow stalker competition and not having the balls to educate landowners on what is best to leave and best to shoot…and laziness due to extraction.
Quality
Totally depends on what your (or the landowner’s) objective is.
Traditional deer management was all about maintaining the sport and maximising two things: (a) the chances that every guest/client saw deer and at least had a chance of a shot (and a memorable day); (b) the number of good representative stags that came off the ground (not least because that was linked to the resale value of the property). Built into the model were several assumptions: (a) that forestry and/or agriculture were not a primary concern; (b) that the overall population density was quite low (or at least low enough that modest culls kept it from entering a rapid exponential phase). It was a model largely influenced by the Highland estates during the century between 1850 and 1950. Critically, deer density was low (or absent) across the rest of the UK, so it largely worked.
Modern deer management is much more diverse, and faces completely different conditions. The biggest challenge to the traditional model is the simple fact that across much of the UK, deer density is much, much greater than it has been in hundreds of years. Deer are not just much more common and widespread, they are also often present in densities that mean a modest, selective cull does nothing at all to numbers - they are well into the rapid exponential phase of demography. To illustrate: I recently did some modelling for cluster of Perthshire estates. They were worried they were shooting too many. And yet despite shooting 74% of the deer they were counting, their population was still going up year on year. Which meant that they were part of a much larger population that was growing so fast that their efforts made no difference at all to local numbers.
Many people really don’t understand exponential growth. Once it gets going, you have lost the luxury of being selective if you have any interest in forestry or agriculture. Or indeed animal size and welfare!
Roe are the absolute worst here. The population really can double in a year. The maths then becomes relentless. Say you have a bit of ground that has a ‘carrying capacity’ of 100 animals. You’re at 50 animals. How many years til you hit the limit? Answer: 1 year. So you need to shoot 50 this year. Almost no one is willing to do that. They are still thinking that it’s possible to ‘overshoot’ and are trying to be selective.
For many, many areas, we are way past the point where it’s possible or desirable to be selective. You need to be aggressive and shoot what you see until you bring numbers well down.
