Back MatterSource: Journal of Animal Ecology, Vol. 65, No. 4 (Jul., 1996)Published by: British Ecological SocietyStable URL: http://www.jstor.org/stable/5796 .

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Freshwater Biology Editors: Professor Alan G. Hildrew, London and Professor Colin R. Townsend, New Zealand

Freshwater Biology has received world- wide recognition among serious workers in the many disciplines which contribute to the study of freshwater biology. The journal publishes papers on all aspects of the ecology of lakes and rivers, including studies of micro-organisms, algae, macrophytes, invertebrates, fish and othervertebrates as well as those concerning whole systems and related physical and chemical aspects of the environment.

A new section of Freshwater Biology was launched in 1994. Called Applied Issues in FreshwaterBiology, the section is devoted to applications in freshwater ecology. Its aims are to provide an outlet in an established and widely circulated journal for applied papers of good scientific quality and to improve communication between applied and fundamental freshwater scientists.

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HEREDIT The Official Journal of the Genetical '

Editor: Dr M J Kearsey, University of Junior Editor: Dr T Crawford, Univel

Heredity publishes articles in all areas of genetics, focusing on the genetics of eukaryotes. The traditional strengths of the journal lie in the fields of ecological and population genetics; biometrical and statistical genetics; animal and plant breeding; and cytogenetics. The majority of papers report new theories orthe results of important original research. in addition Heredity publishes occasional review articles, and the Editors are actively seeking to increase the frequency of such

Y Society of Great Britain

Birmingham rsity of York

articles. Heredityalso accepts submissions such as criticism, opinion and historical articles. Book reviews are a regularfeature. The journal includes special lectures delivered to the Society, in addition to abstracts of papers and posters presented at the Society's annual meeting. Subscribers to Heredity can be sure of regularly receiving issues packed with top quality papers from the frontline of genetical research in the international community.

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ECOLOGICAL

ENTOMOLOGY A Journal of the Royal Entomological '

Editor: S Leather, Imperial College at Silwood Pi

Ecological Entomology publishes original :: research papers on insect ecology; including .Subs the field biology of terrestrial and aquatic E lo/ . insects; inter-relationships between insects ,q:uartE and host plants, other animals and .for.ins pathogens; insect behavioural ecology; l?1681 insects and weather, migration and '..(.r:lt dispersal; autecological and community :u:bsc population dynamics, and ecological ..41...5 aspects of pest-insect problems. The special and U aim of the journal is to encourage field Eolo studies of insects and to relate the findings CE I from field studies to ecological theory. Experimental studies are considered of - particular importance.

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Members of the Royal Entomological Society are eligible for a discounted subscription rate and should contact the Society for details.

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The British Ecological Society President J. A. LEE

Past President I. NEWTON

Vice-Presidents A. J. GRAY and M. CHERRETT

Honorary Treasurer R. A. BENTON

Department of Environmental Biology, University of Manchester, Manchester M13 9PL

Honorary Secretaries B. D. TURNER

Division of Life Sciences, King's College, London W8 7AH M. C. PRESS (Meetings) Department of Plant Sciences, University of Sheffield, Sheffield S10 2TN C. M. LESSELLS (Publications) N100, Boterhoeksestraat 22, PO Box 40, 6666 ZG Heteren, The Netherlands

Honorary Chairmen D. W. H. WALTON (Ecological Affairs) British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 OET D. SHIRLEY (Education and Careers) 5 Trevor Road, Hitchin, Herts SG4 9TA

Ordinary Members of Council

Retiring 1996 P. ANDERSON

A. J. HESTER

M. O. HILL

1997 B. HUNTLEY

J. A. THOMAS

M. A. PALMER

1998 M. H. D. AULD

S. E. HARTLEY

D. R. SLINGSBY

1999 W. BLOCK

M. J. HUTCHINGS

W. J. SUTHERLAND

The British Ecological Society was founded in April 1913, when it replaced the British Vegetation Com- mittee (founded in 1904). The objects of the Society are to advance the education of the public and to advance and support research in the subject of ecology as a branch of natural science, and to disseminate the results of such research. It does this by publishing the Journal of Ecology, the Journal qf Animal Ecology, the Journal of Applied Ecology, Functional Ecology and a Bulletin for members, and by holding regular meetings and symposia on subjects of current ecological interest.

MEMBERSHIP of the Society is open to all, whether or not they reside in the British Isles, who are genuinely and personally interested in Ecology and wish to receive the Society's journals for their own use. The minimum subscription for ordinary membership for 1996 is ?19.50, due on 1 January, and this entitles members to attend the meetings and make use of other facilities that the Society may offer, to vote in the election of Council and Officers and to be eligible for election to Council and Office. For a subscription of

?34.50 (?59.50) members may receive one journal, for ?49.50 (?74.50) two journals, for ?64.50 (?89.50) three journals and for ?79.50 (?104.50) all four journals (rates in parentheses are for copies on CD-Rom). Student membership is available at ?8.00 (no journal), ?15.50 (one journal), ?23.00 (two journals), ?30.50 (three journals) and ?38.00 (four journals), the equivalent CD-Rom rates for students being ?40.50, ?48.00, ?55.50 and ?63.00, respectively. There is a discount of ?1.00 for those paying by Direct Debit. These rates apply to the United Kingdom. Separate rates apply to the USA and there are concessionary .rates for Eastern Europe (including the former USSR) and Africa (excluding South Africa).

Full details of membership and an application form may be obtained on request from the British Ecological Society, a charitable company registered in England No. 1522897 and limited by guarantee. Registered office: 26 Blades Court, Deodar Road, Putney, London SW15 2NU. Tel: + 44-181-871-9797. Fax: +44-181-871-9779. E-mail: general@ecology. demon.co.uk

Officers and Council for

the year 1996

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Journal of Animal Ecology Volume 65 Number 4 1996

Contents 401 Body mass variation in breeding mountain bluebirds Sialia currucoides: evidence of stress or adaptation

for flight? M. S. MERKLE & R. M. R. BARCLAY

414 Refuge availability structures assemblages of tropical reef fishes M. J. CALEY & J. ST JOHN

429 Variation in the feeding success of sperm whales: temporal scale, spatial scale and relationship to migrations H. WHITEHEAD

439 Intraseasonal variation in the development of sexual size dimorphism in a precocial bird: evidence from the lesser snow goose E. G. COOCH, D. B. LANK & F. COOKE

451 The dynamics of bovine tuberculosis in possum populations, and its eradication or control by culling or vaccination M. G. ROBERTS

465 Habitat fragmentation and extinction thresholds in spatially explicit models J. BASCOMPTE & R. V. SOLE

474 Horizontal transmission and reproductive rates of hen fleas in great tit nests P. HEEB, I. WERNER, H. RICHNER & M. KOLLIKER

485 Multiple mechanisms of reversed hatching asynchrony in rockhopper penguins C. C. ST CLAIR

495 The effects of stochasticity and seasonality on model dynamics: bovine tuberculosis in badgers G. D. RUXTON

501 Variability in parasitoid community structure B. A. HAWKINS & N. J. MILLS

517 Density-dependent feeding success in a field population of the sandfly Lutzomyia longipalpis D. W. KELLY, Z. MUSTAFA & C. DYE

Forum paper 528 Correct calculation of Dirichlet polygon areas

J. A. BYERS

530 Book Reviews

b M ull I Blackwell Science 0021-8790(199607)65:4; 1-W

Cover illustrations. Artwork on the cover will normally illustrate an article in the current issue. The Editors would be pleased to consider any such material which authors submit.

The photograph illustrates the structural complexity of reef habitat and the associated fish community. (Photograph courtesy of the Great Barrier Reef Marine Park Authority.)

Typeset by BPCC-AUP Glasgow Ltd, Glasgow, UK Printed in Great Britain by Alden, Oxford, Didcot and Northampton.

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