T A N E VOLUME 9 AUCKLAND UNIVERSITY FIELD CLUB THE JOURNAL OF THE. Printed by The University Of Auckland. Bindery and Publishing Department

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1 T A N E THE JOURNAL OF THE AUCKLAND UNIVERSITY FIELD CLUB VOLUME Printed by The University Of Auckland Bindery and Publishing Department

2 TANE Volume Published by the Auckland University Field Club with the financial assistance of the University Council. EDITORS: W. B. Silvester G. Rennison STAFF EDITOR: Prof. R. N. Brothers SECRETARY: BUSINESS MANAGERS: Glennis White P. Hyde D. English Printed by University of Auckland Bindery and Publishing Department. Price of single copies of this issue: 4/6d. Information regarding availability and prices of previous volumes will be furnished upon receipt of specific requests. Back copies of Volumes 6, 7 and 8 are available. Articles are obtained primarily from University of Auckland Students. Unsolicited manuscripts from other sources are also welcome. In all cases, however, the editors reserve the right to accept, reject or suggest revisions in submitted material. All manuscripts should be on double-space typewritten pages, with references and citations in accordance with the customary style of TANE. All diagrams to be twice the normal size of TANE done in black Indian ink on good quality tracing paper or 'ethulon'. Reprints of articles are available from the Editors on request. Correspondence concerning the Journal should be addressed to: "TANE" c/- Auckland University Field Club P. O. Box 2175 AUCKLAND. C. 1

3 CONTENTS A Study of the Macrofauna of an Exposed "Iron Sand" Beach and a Nearby Estuary - D. H. Wood 1 An Introductory Study of the Marine Algal Ecology of an Open Coast Area at Leigh - W. B. Silvester 17 The Geology of Musick Point, Bucklands' Beach Area - J. Chappell 33 The Boulder Beach Fauna of Otata Island - D. H. Wood 41 An Observation on the Tides at Otata Island, Hauraki Gulf - A. Haughey 57 The Vegetation of the North Cape Area - J. M. Wheeler 63 The Spread of Exotic Conifers into the Tongariro National Park - G. Rennison 85 Regeneration of the Bush Edge after Fire in the Rangataua Forest - G. Rennison 91 Studies In the Growth Rate of Young Beech Under Canopy Conditions - G. Rennison 97 Notes on Nothofagus Solandri var Cliffortioides - G. Rennison & D. A, English 101 A Preview of Ecological Studies in the National Park Area 103 An Artificial Key to the Vascular Plants Common in the Swanson Area of the Waitakere Ranges W. B. Silvester 105

4 EDITORIAL In helping to bring together the collection of original papers which make up this, the ninth volume of "TANE, " it has been a pleasure to see the high standard of previous years continued in the present issue. All of the articles were written by students, all of the natural sciences are represented, and the traditional practices of the naturalist - discriminative observation and meticulous description - have been faithfully observed. The diversity of subject material, which involves such widely separated disciplines as sandy beach ecology, sedimentary geology and algology, is a true measure of the scientific activity in Field Club. The present format of "TANE' has been achieved through a grant from the University Council and by generous assistance from the Registry; the club is most appreciative of this help and wishes to record its gratitude. Indeed, it is not many years since the staff and students used to gather at night in the basement duplicating room to feed stencilled copy laboriously through a Gestetner machine, each page being handled many times before those early volumes were ready for hand stapling. Now that this publication hurdle has been overcome, it will be possible for the editorial committee to produce "TANE" in regular volumes. Articles will be accepted throughout the academic year and the journal will be assembled in time for an issue to appear during enrolling week in February. In this way freshmen will be given a vivid introduction to club activities and advanced students should gain fresh ideas for their own "TANE" projects. The editorial committee has suggested a club project which may be implemented in the coming year - that is, a systematic and detailed coverage of the animal and plant ecology of selected areas in and about Auckland, with the environments and species lists to be published in "TANE. " This information will be a valuable record and should be of interest to school classes, to naturalists in the general public, and to members of Field Club. Perhaps as first priority the geologists will urge ultimate destruction by their temporary custodians. R. N. BROTHERS

5 As has been indicated in the editorial many of the teething troubles of "TANE" are now over. It is now no longer necessary for the editors to perform all the tasks of editor, publisher and binder. Financial assistance and the use of Xerox methods have done away with a lot of the time consuming student work. Now that "TANE" has come of age as it were the present editorial committee would like to pay a tribute to those editors who gave "TANE" its initial impetus and to those who have seen the Journal through its period of infancy. One person in particular we feel needs mention here, Mr Don Wood who was largely responsible for Volume and for the establishment of the present format. - THE STUDENT EDITORS