Showing posts with label biodiversity. Show all posts
Showing posts with label biodiversity. Show all posts

Sunday, 9 November 2014

Autumn in Full Flow


The rate of decomposition of aquatic plants has been quite surprising and given that the daytime temperatures have been more akin to a poor summer and the first noteworthy frost only bit this week this appears to prove that, unlike the triggers our so called intelligence would have us believe apply to such events, it is not simply heat that controls the reaction of life to the seasons

On the stretch of the Leam that Parps and I have the rights to the arrowheads were slipping into browning dormancy some weeks ago and now, it always seems sudden, the bulrush is losing its bottle green shade in many stems, and ‘cabbages’ break up into slimy, khaki folds as, with the oncoming winter, they prepare for that which will ultimately leave only the rhizome intact


Ten days ago the first seasonal redwings sipped in panic as they burst from foraging to the shelter of thick hawthorn in the nearby Warwickshire countryside and only this past week their erstwhile companion the fieldfare followed a similar pattern as a flock of forty took an undulating course parallel to the Fosse

The gnawing sound on stems being trimmed becomes ever less frequent whether I sit bankside or walk quietly near water and the family of six swans on our stretch is reduced to four by the ravages of predatory instinct and the need to feed the next generation of ‘higher’ species

Yesterday morning a train of five jackdaws sky-jacked a quite massive cronking raven as it headed out to the meadows, its Maltese cross profile as evident as ever it could be in this fascinating individual. How long before we become blasé about their presence in the central and east midlands much as we have with the buzzard, and yet at the same time we worry about the loss of species? Strange times indeed

I read recently that the great ecologist Edward O Wilson was marking the start of the MEMO project to build a shrine to the species which have become extinct since the dodo began the decline, now known widely as the sixth mass extinction, on the ‘Jurassic Coast’. A thirty million pound investment in what, to my mind, could prove to be the most powerful reminder to us (in Britain at least) that it really is time to act. Human life created the issue and, if it is possible to reverse the collapse, surely we owe it to the earth to urge it back to fitness

(see here www.memoproject.org)

 
Speaking of counter-intuitive increases in populations as I was, I am seeing, preceded by a deep dull drone, regular hornets in many locations now and yet, until about three years ago, I could only recall one dead individual noted on a bathroom window cill during a survey of a rural house a decade ago. A friend of mine had a swarm take up residence in her porch just a month ago but while they seem somewhat breathtakingly repulsive, with their bloated wasp-like appearance, they are apparently quite docile and unlikely to attack unless, like the bee, they are provoked to such a degree that they feel the need to defend themselves – such as at food sources or nest sites. In fact there is only one documented record of anyone seeking medical attention after a hornet encounter in the whole of Europe! So, like the buzzard and then the raven, is the hornet expanding in Britain having been restricted to southern counties in the past? Well yes, according to the Natural History Museum, it is indeed as they say ‘a known fact’ that hornets are spreading from their historic stronghold around the Exeter and New Forest area

 
The wet weather towards the end of this week has pushed the Middle River Leam level from the standard summer range of 0.25-0.3m to a positively healthy 0.75 over the past two days and with this in mind fresh vigorous lobworms were obtained and are added to the bait range with the obligatory bread. So with a simple Avon quiver set-up and the contrary, but still relatively strong, sun bursting across the field and in through the windows a plan was hatched

Roach, chub and anything else daft enough to be fooled would be the target. The spaniels seemed to know too but they, with live lamb on the agenda, would be staying to bathe in that same sunlight from indoors

On arrival, the afternoon sun was starting to slide behind a comforting blanket of light cloud while two herons took flight and barked, as only they can, their raucous contact call. As I sauntered to the water’s edge kingfishers piped and their neon blue streaks abounded. Jackdaws jack-ack-acked as, in their fluster, they exploded from the wood with fears all their own…and all was well in the valley

I all-but trod on a field vole as it scurried underfoot into waterside rush margins where cattle and sheep had broken the bank into terraces as it dropped toward the water. But it was not him I sought. For me it was the waterscape that drew me in search of undercuts, slacks and glides; and therein, I dreamt, the aforementioned quarry

Recently I had discovered an undercut with overhanging grasses and hoped it would offer steady water under these first suitably raised water levels of the colder months, but it was not to be; the water gently, admittedly, boiled and surged through the channel and I would need to wait for levels to fall, or rise considerably more, for this area to came back into play
 
An enticing slack I had harboured far from complementary thoughts about when approaching from the opposite bank in the past suddenly seemed all the more attractive downstream of a substantial bed. As the main flow cut past the outside of the shelter, it cried-out for a stab at its likely refugees. Heads, tails and indeed the haemorrhaging middles of a series of unfortunate lobworms were offered to its inhabitants, and, cast after cast, bites ensued. Roach, perch around 12 ounces, then a river best (though far from exceptional example) of 1-1-3 battled and failed to get under the decomposing but, at the same time, high water-animated rush stems. Then another roach before the closing gloom of the evening pushed me back to my prepared bread swim to engage in the last rites of the angling day at the head of an awkward to access shallow gravel run


Last weekend I had been buzzed by a tawny owl elsewhere on the river just minutes after briefly observing its barn-dwelling cousin hunting over rank bankside vegetation. An incoming message from mission control had lit me up in the dark and the enquirer came for a closer look, delaying his fly-by with a brief hover and eventually alighting over my left shoulder until, as I reached for the camera he slipped with the flow and out of sight. This week was to be little different, a male buzzard had landed in bare branches on the opposite bank but soon realised there was a bigger predator already here and silently flapped north and away from this imposter but, as darkness fell and before the evening hoot commenced, another tawny owl swept in from behind willows to my right and settled ten metres in front of me. This time I managed to reach the camera but the owl, wiser than I and fearful as to survive, saw this as an invitation to drift back from whence he appeared and to my horror the gadget slipped from my grasp, bounced down the grassy bank and settled part-submerged in the water. As I write it sits upside-down, stripped-down as much as is possible, next to a radiator – in hope, whether vain or not is yet to be revealed

Although another two small roach were quite taken with the bread after dark the swim wasn’t ‘right’ and I decided to tidy-away and weigh the perch with a heavy dew coating everything at hand


Next week. There's always next week.

Thursday, 30 January 2014

A PREDATION SENSATION

Having just visited Mick Newey's always entertaining Piscatorial Quagswagging (http://calamitymn.blogspot.co.uk) (where did you discover that word Mick?!) to find a link to a 116 page document about the angling world-perceived problem of fish predation I feel compelled to write something

But what, what should I write?

My natural reaction is to side against any groundswell of angling opinion as it is all-but always driven by the sensationalist and self-preservative tendencies of the tabloid-esque angling press, desperate for a sale in an insular world they would have you believe is necessarily controlled by tackle companies and a single fish species

The fact that it is inevitable today for issues associated with carp to be high profile factors is again a turn-off due to the inextricable link to economics and ego. It is surely natural to question the supposed necessity to maintain waters for the benefit of a single species or any unnatural mix, the reasons I resist can surely be the only ones

Next there is the logical thought that fishery owners and managers shoot themselves and the sport in the foot and fin when they measure the importance of their, no doubt individually-named, stock in £'s not lbs.

I could go on

...and I will


For those who, like me, do not have the stomach for 116 pages of such information, 'Predation: An Ecological Disaster. The Big Picture' is a compilation of research documents, press clippings, commentary and opinion by scientists, supposedly high profile anglers, politicians, celebrities, etc., presented as being published for The Predation Action Group (PAG).

PAG it seems is the joint effort of various angling 'personalities' and others reporting back to the Angling Trust but sadly their website does them no favours (www.thepredationactiongroup.co.uk). If you were to click on the otter in the predators section and read the first sentence you will immediately get my drift

Anyway, the thrust of it is to convince those who may condone it that destruction of presupposed culprits is essential to maintain an artificial level of control over predators to the benefit of the quantity and size of fish available to be caught and ultimately, of course, to reward those who believe that fish exist to adorn them with gold and those whose heads grow fat upon their capture. No need to expand further on that

Thankfully blogworld is heavily populated by countryfolk who fully appreciate that a balanced ecological community is what we all desire of our favourite waters and that a healthy, naturally biodiverse countryside is a laudible aim we should all be able to enjoy for its, at the same time, magical, beautiful, weird and wonderful qualities

The fact that certain introductions would upset the balance was inevitable. Otters for instance have spread naturally into my part of the world following, and possibly directly because of, introductions elsewhere. It will now take time for a natural balance to descend on the watercourses they inhabit especially when combined with the fact that there are now coincidentally so many signal crayfish for them to forage on in some of those waters

New introductions of non-indigenous species, it would undoubtedly be fair to say, are never well advised

Alien species inevitably cause initial problems beyond prediction and the imagination before they settle back to a natural level in the newly adjusted ecosystem, often at a cost to a pre-existing species (mink/water vole being the obvious example)

Reintroductions are another matter, what are we (they) trying to achieve? If we allow ourselves to be sentimental for a second then, yes, it is nice to be able to see the majesty of red kites close to home but I still and always will see them as a slightly false 'tick', just as I do with white-tailed eagles on the annual Highlands excursion, monstrously impressive though they are. These species have been lost for whatever reason in the past and their presence now does nothing to reinstate the then extant balance of fauna at the time they last graced these isles. So what is the point of all that?

I could go on and on, page after page, on this subject of course

The fact of the matter is that we have what we have at any one point in time. If it were down to me, and it isn't as thankfully I am nobody in the scheme of things, there would be no introductions, no reintroductions and heavy protection and conservation of what we already have with emphasis on the relinking and enlarging of the widest possible variety of valuable habitat as part of a nationwide strategy. This should be the fundamental thrust of conservation - to maximise the chances for the broadest range of biodiversity to survive, strengthened not weakened, in the interests of maintaining Gaia to the benefit of all species, ourselves included. This should be the predominant national policy above all other or our, perhaps immediate, children may live to regret the actions of ourselves, their predecessors

So how does that leave us with the PAG document?

Well, do we not simply have to wait and make of situations of change what we can? My local waters had been hard venues from which to catch fish, certainly since the 1960's, but in 2013 the canal fished so well I actually got bored and stopped going, and yet simultaneously there was, and is, otter spraint under every suitable bridge and signal crayfish everywhere...oh! and, yes, it is riddled with zander too. This example is the antithesis of the PAG argument; a venue that was incredibly difficult to winkle a few small fish out of thirty years ago but that last year produced numerous double figure bags of quality fish with the additional benefit in the interim of otter, signal crayfish, zander and, at times undoubtedly, cormorants and, to my definite knowledge, goosander too. Similarly a syndicate I belong to has a water which for the first time in living memory is alive with small fish and yet this has occurred at a time when cormorant numbers have been increasing. 'For every action there is an equal and opposite reaction', 'remember those words from school physics?

So what does that prove?

Well nothing of course, other than nothing is clear and it's all guesswork, all round. Nobody understands whats going on and every time it gets tampered with it it goes wrong and becomes ever more complicated

It's quite simple - leave what species remain alone, protect them - and embrace the constant change; 'twas ever thus and always will be so










Saturday, 23 March 2013

The Combined End of the Beginning

A weekend struck-through by a third bout of man'flu this winter set me thinking more widely than the usual particularly narrow field of view...

So many memories from the old days. So many days when luck was on my side and yet plenty when it wasn't, memories that mysteriously emerge heavily rioting from a fog like a ponderous bream from murky water as I attempt to draw them out for recollection

There have been days when one's fortune seemed overwhelmingly unjust to others and others that are simply forgotten, and for justifiable reason

I have been lucky to have found the outdoors, or maybe it is the other way round, but then that is no doubt the mantra of anyone who enjoys thoroughly an enthralling pursuit away from their work which is more than just sport or a hobby but a way of life, a state of mind

This for me is how I view being anywhere in fresh air but particularly imbibing the sights and being stimulated of the senses in the countryside, even though there is nothing natural about it if one takes the view that man's influence renders things 'unnatural'. There is not a single plant or organism outside the influence of man, without doubt, and the great outdoors is only great within those limits and set against that context. The range of our everyday lives is wholly subject to the influence of ourselves and our ancestors

50 years I have wandered where the feeling took me and at every turn there is regret, occasionally at my own stupidity, but more often over the actions of others

As a teenager, and maybe before, it was fundamentally obvious that unendingly and obsessionally tampering with what I will call 'life' was a means to a gloomy end. Even at that formative time of life it was beyond being unquestionable that there was no need for any car to be capable of less than even 40mpg; there was no logic in straightening watercourses and literally destroying the food chain and webs supported by them to such an extent that, even when the error is identifed, it can never be corrected as the true loss is just a faded memory; there was a noticeable decline in what is now termed biodiversity (yes, give it a name and we can all live with it, "My child is out of control!, He has attention problems", well have you considered that feeding him a diet of blue smarties, coke and electronic games might not be natural?); development goes ahead paying lip service to biodiversity because national planning guidance says it must, and for that reason alone; agriculture rapes every last inch of land and can only be diverted from its destructive combine by subsidy

It is no risk as far as I am concerned to state here that it is possible that in ours or our childrens' lifetimes the world as we know it may come to an end. I do not consider this the miserable rambling of one obsessed by 'doom and gloom' but just a calculated statement of fact

To my mind it has long since been questionable that the earth behaves as a single organism and that it can't be that long, in terms of the time-line of life on earth, that it is about to change, as far as we are concerned, for the unfathomable worse

Highly likely is the possibility that the extinction of one too many organisms will act as a fairly sudden catalyst for massive change as we head for the inevitable restructuring of Gaia to the exclusion of life as we know and enjoy it

Today was a strange one, two of the family were ill with heavy colds and yet we needed to vacate the house as building work was underway which we wouldn't be able to live with. The day therefore became one of wanderings and, in that now somewhat old-fashioned way, we drove. We drove partly so that we didn't visit friends or relations and spread the bug to them and partly to revisit areas of countryside we hadn't seen for a while south of home and into the north of Oxfordshire

We drove about forty miles and, in all that way, through drift-crisped verges and scenes of wild desperation; through stiff easterly winds biting on exposed arable fields; under snow-laden branches of apparently lifeless trees we saw just four mammals, two pair of roe deer, and I remarked how odd it seemed to see them wandering the fields and yet not being owned by the landowners but, of course, we should be used to the presence of wild animals we should expect them to be there and not have to search for them with a metaphorical nit-comb in the flea-bitten wig of the outdoors

Yes, so many memories. Memories of water voles pushing tiny flared nostril-speared bow waves and diving at the last minute sight of my presence through their tiny glistening pin-head eyes pursued to the edge by released mink and hanging like a milk tooth on its last eye-wateringly painful thread of flesh; of myriad multi-coloured butterfly species now seemingly lost for ever in any number and maybe soon for good; of vast shoals of tiny gudgeon now quite simply devoured by the dim-witted alien attack of the zander; on catching the diminutive native freshwater crayfish in a minnow-trap, inspecting it with wonder, and returning it with care to the stony sun-sparkled and commensurately tiny River Swift; of hundreds of yellow wagtails falling in fields from migration brighter than custard such that it seemed the whole population of the country was descending on us at that very moment; of hoardes of chirping house sparrows attacking the breadcrumbs in the back yard of youth; and imagined memories that can only be gleaned of a balance of existence never fully experienced from an era, indeed another world, when otters and bitterns, water meadows and working mills, red-backed shrikes and adders, lush growth and a vast and wide array of lifeforms washed around in a delicately poised environment such as we will never see again nor appreciate to even the most infinitely miniscule degree as common-sense fades away hand-in-hand with the advancement of the modern world

How I wish that, just occasionally, time spent by the water might be punctuated by the 'plop' of the water vole, how fulfilled life would again be

"But we're alright, we're nice and warm here,
No one to hurt us except our friends"

References:
Gaia - James Lovelock/Oxford University Press 1979
The Combine - Paul Weller/Universal Music Publishing Group 1977