Rosehips

Inspired by yesterday’s gallery of the reserve’s berries and fruit, Sarah, a long-term member of FoSCP, has sent in pictures of the spectacular crop of rosehips near Lambrok Bridge.

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Why do the leaves change colour?

There are three kinds of pigment in a usually green leaf: yellow carotenes, red and pink anthocyanins, and chlorophyll, which is the green that masks the other colours until autumn.

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Reclassifying grass snakes

 The UK has three species of snake, the adder (Vipera berus), the smooth snake (Coronella austriaca) and the grass snake, recently re-classified as Natrix helvetica.

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Bioturbation

Wikipedia defines bioturbation as the reworking of soils and sediments by animals or plants. Here is a video of a system with and without soil fauna such as earthworms, mites and isopods over a 15 week period: this is what is happening to the fallen leaves all over the reserve.

Seed dispersal

Seed dispersal is an annual problem for trees and shrubs.  If seeds just fell down and germinated under the parent tree, they would be competing with their parent for nutrition, water and eventually light. Trees need a way to send their seeds far off to a new environment where their germination will not pose a threat.

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Winter territory

During the spring and summer, robins’ pair up and defend a joint territory, chosen specifically for its nest site and the nearby availability of invertebrate food suitable for nestlings. Now, at the end of September, those pairings have broken down and each bird holds an individual winter territory which it will defend fiercely: robins have been known to fight to the death over territory.

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Red admiral

by Ian Bushell

After the article on Sunday about the Small Copper, I have noticed at the reserve that there are many Red Admirals flying around. I can guarantee seeing some almost every time I visit but I was stunned over this weekend to see so many.  There is Ivy now in flower and the most I have seen around a flowering Ivy bush are at least a dozen.

I don’t know whether these are the latest hatchings [from the nettle beds] that will migrate or possibly over winter here, or if they are the latest wave of immigrants from mainland Europe. I suspect that they are hatchlings because they are all absolutely pristine and beautiful.

The ground beneath our feet

We rattle on about the reserve’s biodiversity, its species-rich hayfields, the insect life buzzing through the hedges and our woods filled with birdsong but we pay scant attention to its most biodiverse habitat, the soil.

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Fascinating fact

In the next few weeks each of the reserve’s jays will cache as many as 7500 acorns, carrying away from the tree as many as six acorns at a time and hammering them into the ground in a spot believed to be chosen for a nearby memory-jogging marker.

Yarrow

As the reserve’s flora turns itself over to making seed, there are fewer and fewer flowers in our hedgerows. Yarrow (Achillea millefolium) is one of the few.

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