The Norfolk & Norwich
Total Page:16
File Type:pdf, Size:1020Kb
L c£H£RAl * 3 may ,*,UBRARY^ x TRANSACTIONS OF THE NORFOLK & NORWICH NATURALISTS’ SOCIETY Vol. 24 PART 4 APRIL 1978 ISBN 0375 7226 : : OFFICERS OF THE SOCIETY 1977-78 President: Ms D. M. Maxey ‘Greenfields’, Swanton Road, Dereham. President-Elect Mr P. J. Trett Victoria Road, Great Yarmouth Vice-Presidents: P. R. Banham, A. Bull, K. B. Clarke, E. T. Daniels, K. C. Durrant, E. A. Ellis, R. Jones, M. J. Seago, J. A. Steers, E. L. Swann, F. J. Taylor-Page General Secretary: R. E. Baker 25 Southern Reach, Mulbarton, NR14 8BU Tel. Mulbarton 70609 Assistant Secretary: (Membership and Publications) Ms J. Wakefield Post Office Lane, Saxthorpe, NR 11 7BL Assistant Secretary: (Minutes) P. W. Lambley Castle Museum, Norwich Excursion Secretary: Ms J. Robinson 5 Southern Reach, Mulbarton NR14 8BU Tel. Mulbarton 70576 Treasurer: D. A. Dorling St. Edmundsbury, 6 New Road, Hethersett Tel. Norwich 810318 Assistant Secretary: J. E. Timbers The Nook, Barford, Norfolk Editor: E. A. Ellis Wheatfen Broad, Surlingham, Norwich Auditor: E. L. Swann 282 Wootton Road, King’s Lynn, Norfolk Committee: M. J. Baker, G. Dunmore, Dr A. Davy (University Representative) Dr S. Cole, Ms C. Gurney, G. Hart, R. Hancy, P. W. Lambley (Museum Representative), J. Secker, Ms J. Smith, P. M. C. Stevens (Norfolk Naturalists’ Trust), P. Wright (Nature Conservancy Representative). ORGANISERS OF PRINCIPAL SPECIALIST GROUPS Birds {Editor of the Report) M. J. Seago, 33 Accacia Road, Thorpe, Norwich Mammals (Editor of the Report) R. Hancy, 124 Fakenham Road, Taverham NR8 6QH Plants: P. W. Lambley and E. L. Swann Fungi: E. A. Ellis Insects: K. C. Durrant 18 The Avenue, Sheringham NR26 8DG Amphibia-Reptiles J. Buckley 22 Aurania Avenue, Norwich Mollusca: R. E. Baker Marine: P. R. Banham Field Study Centre, Poka Road, Wells-next-Sea Freshwater: R. Driscoll Nature Conservancy, Bracondale, Norwich . : TRANSACTIONS OF THE NORFOLK AND NORWICH NATURALISTS’ SOCIETY Volume 24, Part 4 (April 1978) Editor Dr E. A. Ellis CONTENTS Page Full of His Glory : Presidential address read by Miss Dorothy Maxey to the members ofthe Norfolk and Norwich Naturalists' Society . 135 The changing status of aquatic macrophytes in the Norfolk Broads A survey of twenty broads in the summer of 1977 and a review of existing records by M. J. Jackson .. .. .. 137 The wetland plant communities of the River Ant valley, Norfolk by B. D. Wheeler .. .. .. .. .. 153 Elodea canadensis and Elodea nuttallii, by E. L. Swann . 188 Weather 1977 by T. B. Norgate . 193 The River Wensum (1) by Roy Baker , Robert J. Driscoll and Peter Lambley . 197 ( FULL OF HIS GLORY Read by the President, Miss Dorothy Maxey , to members of the Norfolk and Norwich Naturalists * Society at a meeting held in the Central Library Lecture Theatre , Norwich, on 7th December, 1977. First of all I must say that I am deeply conscious of the honour paid to me by this Society in asking me to be your President. I agreed without much thought of the Presidential Address but as time went on it began to loom rather larger and when the Secretary asked me for a title—very large indeed. Knowing that this Society numbers amongst its members many learned and expert people, it ruled out an address with a strong scientific basis. I realised too that the Society also contains many expert photographers and artists so that made me doubtful as to how well I would stand up in that company. Fortunately I remembered that also amongst its members are many people who belong simply because they take a delight in our beautiful county and who want to know more about its rich fauna and flora and who wish to ensure that its wild life continues to flourish. In this company I felt much more at home. The title I chose made our Secretary blink, I rather think he thought you were in for a sermon. In reality the quotation comes from one of the earliest nature poems, written over two thousand years ago, a passage in Ecclesiasticus. There is a cave painting of a spider on its web much older than that and together these two things should remind us that even in the earliest days some people realised that there was a spiritual value in the natural beauty of the plants and creatures which cohabit this world with us. That it was not simply how much food they could get from them or how much these things worked against the interests of man. We must beware of those who denigrate the spiritual value of this natural beauty. There is a moral issue too. Man is as yet, unable to bring to life even so simple a creature as an amoeba, what right has he then to cause to become extinct such beautiful creatures as tigers, or nearer home, otters. The acceleration of extinctions, not only of large animals but also of small animals and plants, is frightening and causes me to wonder how long some of the things we now regard as common will remain with us. We live in a materialistic society, not necessarily a happier one, however, for all the things it possesses. Much of the trouble, not all, can be attributed to finance or to put it crudely money and this infects every one of us. There are those who, in order to gain a little more personal wealth, destroy our woodlands, waterways, heaths and roadside hedgerows and the life within them. But what about the rest of us ? We know that sewage and detergents are important con- tributory factors to the destruction of our waterways and the Broads as we knew them. Very few of us would like to be without these conveniences. We are told that processes are available which would help to clean up the rivers and more careful planning would avoid some of the problems from the beginning, but how are we to foot the bill ? I hope the time will come when the public will be educated to expect proper sewage disposal as a matter of course. It seems inexcusable to me to destroy by disturbance some of our rarer animals and plants for the sake of a day or two’s pleasure or a little extra con- venience, things quickly forgotten, but the living creatures are gone for ever. 135 Curious anomalies also occur from time to time which show the illogical thought or ignorance of some. No doubt many of you read in the “Eastern Daily Press” about the Rabbit Clearance Society which was boasting of killing over a hundred foxes and the letter to the Editor which suggested they should be re- named the Rabbit Protection Society. Not all these foxes were rogues but all suffered for the actions of one or two. This kind of attitude is far too common and I think is to be deplored. The threats to our wild life are many and varied but so many are needless. Search for more virulent and longer lasting insecticides and herbicides would surely be better channelled into search for more selective ones, so that fewer of our beneficial or innocent species are destroyed. I am afraid to say some natural- ists and photographers are guilty of excessive collecting or of so-called ‘garden- ing’ for photography. The Botanical Society and the Royal Photographic Society produce Codes of Conduct which I hope all members will read before under- taking such activities. Many people have interests in the countryside for their livelihoods and leisure activities and their interests are sometimes conflicting or seem to be so. It is essential that there is give and take on all sides. Let us try to get together with other societies and bodies and negotiate for the welfare of our wild life. This will take time, and time seems to be running out. In the meantime let us do all we can to preserve what we have until such time as more people realise what is being lost. We can support as many bodies as possible which are seeking to set up reserves and trusts for breeding our endangered species so that when we have caused things to improve the stock is there to re-populate suitable habitats. A great deal can be done to make all our gardens wild life sanctuaries. Perhaps we should be a little less tidy-minded and more tolerant so that there would be homes for the animals. What about the dead tree, the rough corner, the martins under the eaves etc. What about a garden pond for the toads and frogs ? Why not grow some plants for the butterflies for nectar and food plants ? Leave some seeds for the birds—antirrhinums and forget-me-nots so beloved of the finches. We are so anxious to tidy everything away we remove a desirable food supply. The film which follows is intended to show that while the case is not yet desperate, yet there is cause for concern. It is mainly of Norfolk wild life and was filmed in 1976 and 1977 all in the field (except the otters). It shows both sides of the coin namely, how rich the county is in its fauna and flora but also that while some species are relatively safe others are threatened, e.g. cowslips, sundews etc. by loss of habitat, many interesting arable weeds such as shepherd’s needle (Spandix pecten-veneris) by changing agricultural practice, dragonflies and otters by pollution. It shows too the importance of roadside hedges and verges as nature reserves for bird, plant and insect life, and of the managed reserves of the County Trusts and others. Gone are the days when we could take the wild life for granted.