Dear Readers, on the hottest day of the year so far, my friend A and I ventured forth for a walk around Long Lane Pasture. This nature reserve is just half a mile from my house in East Finchley, but it’s easy to miss, being tucked in beside the North Circular Road and the tube line. Once I was through the unprepossessing gate it was as if I was in some mythical summer from my childhood – although the rumble of the traffic is ever present this is the only reminder that you are in the London Borough of Barnet, not in some meadow in the shires.
There are meadow brown and ringlet butterflies, cabbage whites and the occasional cinnabar moth flitting around the long grass. The flower heads of a yellow buddleia hang opposite the berries of a guelder rose. Wild and garden perennials mix cheerfully together. All that is missing is the chirrup of grasshoppers, which puzzles me – with all this long grass I would expect the place to be deafening. I wonder why there aren’t any?
There are some seats under a covered area next to the largest pond, and we sit and enjoy the shade and a drink of water. A moorhen and her chick head for cover, but the dragonflies are relentless. One male emperor dragonfly seems to want to own the entire pond, swooping down to see off all rivals, his wings gleaming in the sun. He always returns to the same reed to survey his kingdom. Occasionally he stoops at a butterfly but in a half-hearted way. This time of year is about breeding.
It is chastening to think ow easily this pasture could have been lost to development. In 1912 it was given to the public as a reserve, but half of it was lost in 1920 when the North Circular Road was built. For years the land was grazed by horses, but in 1999 Barnet wanted to build houses on the site, one of the last scraps of unspoilt green left in the Borough. After a public campaign it was designated as open space, and 2009 the Long Lane Pasture Trust was granted a 25 year lease. I suppose this means that we’ll have to gird our loins for another fight in 2034. I shall be marking it in my diary.
We follow the paths, taking the opportunity to sit on the benches placed in the shade of the trees. In one area, an elm has been planted. A sign tells us that this is a Princeton elm, a hybrid developed in the US to resist Dutch Elm disease, which still kills off any elm saplings ambitious enough to grow taller than about six feet. The sign tells me that a white-letter hairstreak (Satyrium w-album) was spotted in the pasture in 2009: this is vanishingly rare in the UK, as the eggs are laid on the twigs of elm trees, and the caterpillars feed on the leaves. When the elms died in the UK, it was pretty much the end for the butterfly as well, so closely was it associated with the tree. The Princeton elm has been planted in the hope that ‘the white-letter hairstreak will make a home here’. I hope so too.There are many small ponds on the pasture, many dotted with purple loosestrife and bulrushes. My friend A rescues a cinnabar moth caterpillar from one of them. The irises have just gone over, and there are some strange plants in another of the damper patches. I’m hoping that they aren’t skunk cabbage, an invasive species from North America that can out compete practically anything, but my latest advice is that it’s probably elecampane, a yellow member of the daisy family. I saw some in flower earlier, so this makes sense.
But the best is yet to come. My friend A points out some little webs in the long grass. I take a few photos, and once home I talk to some of my friends on the invertebrate identification groups that I belong to. It appears that the webs belong to nursery web spiders! I am cockahoop. These spiders are free-range hunters, tracking flies and other small insects through the long grass and pouncing on them like cheetahs. The female carries her egg-sac around with her in her jaws and then, when they are ready to hatch, she weaves the webs that I saw so that her spiderlings are protected while they grow.
Apparently, when the male wants to mate with the female (who, as is the way with spiders, is much, much bigger than he is) he presents her with a gift of food while simultaneously pretending to be dead. When she comes over to investigate he apparently springs to his feet, mates with her (presumably while she is absorbed in her dinner) and then runs away as fast as his eight tiny legs will carry him. The ways of insects are strange, but I have known humans who would pursue the same tactics if only they were speedy enough.And so we come full circle to the entrance again, having only just skimmed the surface of the wonders that Long Lane Pasture has to offer. I haven’t mentioned the fluty notes of the song thrush, nor the pretty yellow flowers of the meadow vetchling, and I could probably go on all day about the moth population of the grassland. But that will have to wait, because once it gets above 80 degrees in London it’s time for even the mad dogs and English women to get out of the mid-afternoon sun, and into somewhere a little more shady. I shall certainly be back.
Photo One by By Ian Kirk from Broadstone, Dorset, UK – White Letter HairstreakUploaded by tm, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=30182755
Photo Two by By Ptelea [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], from Wikimedia Commons
Photo Three by By Lukas Jonaitis from Vilnius, Lithuania (Spider – Pisaura mirabilis) [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
Photo Four by By Mathias Krumbholz [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], from Wikimedia Commons