Woodland Management to increase White Admiral butterfly numbers

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PhilBJohnson
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Woodland Management to increase White Admiral butterfly numbers

Post by PhilBJohnson »

In Lincolnshire, honeysuckle grew well in many of our woods, so the abundance of caterpillar food plants in many specific locations, was not an issue for increasing butterfly numbers.
Female White Admiral butterflies ovipositing on honeysuckle, generally might choose shade or part shade.
Along woodland ride and path edges that got sunlight, one might want to consider thinning or reducing the first 2 or 3 metres of more vertical leaf canopy (light blocking in June/July), so that sunlight penatrated the darker adjacent woodland edge, encouraging more ground flora growth and providing a slow transition from one environment to another (Sunlight to shade). This might have encouraged butterflies, having warmed up in the sun, to travel through and explore some shadier areas.
Where large Oaks were present, that management technique was thought to benefit some ovipositing Silver-washed Fritillary as well.
Winter coppicing of small areas within dense tree growth, leaving trees with honeysuckle growth and larger Oaks, was advisable for the White Admiral species.
Leaving every other tree in a coppice area, might over time, leave fewer trees to coppice, if the regenerating coppice struggled to compete for light with a neighbouring tree not coppiced. It might also provide an area of varying habitat, compared to a full coppice rotation with just a small number of "standards" (usually slower growing Oaks that thrived better without competing for light with neighbouring trees).
After many years of coppice rotation (with not many standards), more trees per coppice area might have grown, allowing more light, for growth from seedling, in tree coppiced years.
A full coppice with no standards, might have encouraged more pioneer flora or invasive species needing more energy management, later.
From my observations, White Admiral butterflies generally preferred our native Oaks for roosting in, overnight.
Kind Regards,
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