That’s not been my experience,large estates are run in such a way that maximises profit at the expense of everything else. Your smaller units will have far more biodiversity simply because the farmer knows his ground much better and will have a diverse rotation to suit rather than the mono culture in the drive for profit in the large estate.No its not. Consistent management of ground over larger averages has been proven to be more successful. If small farms work together to achieve joint goals, then it is indeed the same.
For example, if you manage to get a breeding covey of grey partridge (just using my original example) on 50 acres, they are more likely to stray off or be pushed off your ground and potentially shot, than if you ave them on 5000 acres.
Im not slagging small farms off, but any form of land management or environmental management is more successful and has greater impact when done at scale. Also financially, it is often more viable on larger units.