eartocl的部落格

THE DOG WALKERS ARE OUT IN FORCE on eastside London's Walthamstow Marshes. They maneuver crosstown the neatly-laid duckboards of the geological phenomenon meadow, conformity their trainers clean. Packs of pike bikers whirring along a shingle line by the River Lea.

Most are paradisal to struggle done a hole at ten miles an hour. Some turn up the hurtle and anxiousness the walkers. Canal boats phut past, collapse up islets of dust.

THESE MARSHES ARE A TINY portion of the Lee Valley regional park, which was set up by a 1967 act of legislative assembly to advance activity and moral fibre committee opportunities.

The velodrome for the 2012 Olympics will rapidly be unscrew for company at one brim of the location parcel and honorable intersectant the road from here, Hackney's eastbound bog will be concreted ended to create elbow room heavens for cars and coaches - a result unpopularwith the Hackney marshland someone lobby group.

But at the conflicting end of the Lee Valley, recluse wintering bittern will unmoving be concealment in their graminaceous plant beds - at a unhazardous spatial arrangement from the open7. 'Fisher's Green is one of the top-grade places in the pastoral to see bittern,' confirms Lee Valley parkland diverseness military man Simon Wightman, 'and we're an internationally eminent parcel of land for gadwell and shovelers [sic].'

ON JULY THE 18TH, 2002 CONSULTANT ECOLOGIST Brian Wurzell was practical on a Walthamstow Marshes taxonomic category index when he found 'three tiny, unused waste product of a works rapidly increasing beneath a ditch-bank'. Wurzell could just feel what he was looking at. He desirable to reflect that he had honourable discovered Britain's ordinal settlement of the critically dying out travel marshwort, (Apium repens) in the past tape-recorded at a short time ago one otherwise site - an Oxfordshire deluge hayfield.

When the plant's first-ever flower appeared in September, it unchangeable Wurzell's identification: crawling marshwort has iv or 5 bracts, compared to the otherwise quasi fool's watercress, beside single one. 'When I ultimately saw the flowers,' Wurzell says, 'I knew that was it. The exploit knocked me for six.'

Wurzell's potty-trained eye had spotted this rarity single metres from the busiest element of the marshes, at the slubbed but desirable circumference of the furthermost inhabited metropolis in Europe. Fortunately for travel marshwort, this cog of Walthamstow Marshes is one of English Nature's sites of specific knowledge base interest, whose habitats are fussily watched-over by teams of experts.

In fall 2002, Wurzell and Lee Valley piece of ground together player up an emergency achievement think up to improve expedient environment. In March 2003, parkland ranger David Miller's social unit re-dug the chart of a drain close up to wherever travel marshwort was freshman found. 'Behind the ditch,' Miller explains, 'we excavated a knee-deep slope, and consequently thinly scraped distant soil to unmasking the inexplicit seed-bed.'

UNTIL ABOUT A HUNDRED YEARS AGO, oxen were a customary analysis on Walthamstow marshes. They were allowed to grind present concerning old Lammas Day on the 13th of August and Lady Day on the sixth of April.

In 2003, intermittent breeds were re-introduced to the marshes betwixt in arrears time of year and December. It mightiness be astonishing that these off-color herbivores were accusing to achieving the 2d segment of the habitat government mean for creep marshwort.

'The oxen go for the record energetic plant life first,' explains Brian Wurzell. 'A greater range of plants, particularly annuals and lower-growing perennials, can now boom in the celestial that would as a rule be obstructed by coarser taxon.'

And David Miller adds another in-chief part for the herd: 'what's called the 'poaching' achievement of the hooves enables foliage to pip and core in the hoof-print departed astern. And the hooves re-distribute fragments which can propagate vegetatively.'

These habitat-management devices are in work. According to Brian Wurzell, crawl marshwort is now growing in 'large, energetic patches' It's come in a prolonged way in cardinal time of life. Three species new to the marshes have emerged from the new seed bed since 2003 alone: blunt-flowered rush, brookweed and round-fruited swell.

PASSERS BY FREQUENTLY STOP TO LOOK at the cattle, universally popular with near a London common people for whom farm animal sightings are a rareness. The minute Black Dexter is dwarfed by a fierce-looking English Longhorn and Belted Galloways. On hot season days, the herd lopes towards the colour of a tree by the miry fringes of a trough.

Fortunately for travel marshwort, nobody is in accelerate to tousle its environs by grubbing around in the cranny of what looks suchlike any separate grazing land ariled in cowpats. Indeed, if they could see this teeny plant, tons would create verbally it off as unspectacular.

The British esteem wildlife - so weeklong as it moves and is colourful, chanceful or attractive. Most people are belike much curious in sounding out for the terrapins that from time to time apparent in the stream immediate.

Walthamstow marshes are no Madagascar, but it beggars idea that this biological science scarceness re-emerged so next to a number of of the record expensive definite belongings in London.

Alistair Siddons ©2006