ciplines, particularly ecologists. Ecologists are currently obtaining basic information on primary productivity and
tors, both as to the kinds and quantities of toxins pro-
will be the basis for producing more food and fiber to
meet the requirements of the rapidly increasing world population and to prevent further damage to natural ecosystems
as well as the rehabilitation of ecosystems that have
deteriorated.
not only from coincidence of soil and climatic requirements but also from tolerance of one another’s exudates
mineral cycling of natural ecosystems. This information
Internationally known scientists will present general prin-
ciples and specific information on primary productivity
and mineral cycling in natural ecosystems. If these sctentists, by their accomplishments, can encourage others to
add to the limited pool of knowledge in this area, then a
significant step forward will have been madein the solution
of these major world problems: overpopulation and environment deterioration.
Harold E. Young, Afanasii 1. Marchenko, Peter J.
Rennie, Taisitiroo Satoo, Howard T. Odum, Bostwick H.
Ketchum, Jerry S. Olson, Rudolph F. Scheltema, J. D.
Ovington, F. H. Bormann, G. M. Woodwell, D. W. Cole,
S. P. Gessel, S. F. Dice, R. H. Whittaker, and H. A. 1,
Madgewick.
A Coastal Marine Ecosytem: Diversified Ecological
Approaches to Barnstable Harbor, Massachusetts
(29 Dec.)
Arranged by David C. Grant and Roger H. Green
duced by planis and their persistence and effectiveness in
the environment. Thus associations of plants may derive
which in turn are somewhat controlled by soil and climatic
qualities.
John Cantlon, Cornelius Muller, H. B. Tukey, F. W.
Woods, and Helmut Leith.
Adaptive Radiation in Aquatic Animals (28 Dec.)
Arranged by Arthur H. Clarke, Jr. (National Museum
of Canada) and Alan H. Cheetham (U.S. National
Museum).
Many aquatic animal groups have increased in diversity
during Paleocene to Recent time by exploiting ecologic
or biogeographic opportunities through acquisition of advantageous morphologic, physiologic, or behavioral features. Adaptive radiation, grounded in Cenozoic or earlier
evolutionary events, is less well known in aquatic animals
than in some terrestrial groups. Participants in the symposium will discuss neontologic and paleontologic views of
adaptive radtation and will present evidence for rates of
radiation and the functional bases of adaptation, Those
groups of Recent invertebrates and vertebrates having a
fossil record and occurring in a wide variety of freshwater
and marine habitats will be emphasized.
existing ecological research on a single ecosystem, to synthesize the information within the context of modern ecological theory, and to point out any gaps in the present
Arthur H. Clarke, Jr.. Eugene G. Munrow, Alfred S.
Romer, Richard Cifelli, Alan H. Cheetham, John W. Wells,
David Nicol, J. Wyatt Durham, G. Arthur Cooper, Richard
Hf. Benson, E. L. Bousfield, Richard Lund, Alan Keast,
Max K. Hecht, and Frank Whitmore, Jr.
sive studies carried out in the past several years by many
Techniques for Comparative Studies of Protein Structure
(Marine Biological Laboratory).
This symposium has been arranged to draw together the
knowledge of a relatively well-known system. Barnstable
Harbor is particularly appropriate because of the exten-
persons utilizing diverse approaches. The symposium will
consist of two half-day sessions of half-hour papers synthesizing the participant’s individual research in Barnstable
Harbor with any later or current marine ecological work.
In addition to comments on the individual presentations,
there will be a general round-table discussion and summary
at the conclusion of the symposium.
David C. Grant, Alfred C,. Redfield, J. Dungan Smith,
Donald C. Rhoads, John D. Palmer, Charlotte P. Mangum, Charles E. Jenner, Rudolph F. Scheltema, Roger H.
Green, Katherine D. Hobson, Eric L. Miils, and Howard L.
Sanders,
Allelopathy Amongthe Higher Plants (30 Dec.)
Arranged by Pierre Dansereau (New York Botanical
Garden, Bronx) and John Cantlon (Michigan State Uni-
versity).
The mechanism of evolution in vegetation differs from
that in species in detail only. The selective pressures in
each include antagonisms between organisms which may
determine survival of specific genomes as well as inter-
Specific associations. Allelopathy is a factor frequently
responsible for such antagonisms and capable of controlling germination, ecesis, invasion, dominance, exclu-
sion, and ultimate vegetational composition. The toxic products involved in allelopathy are controlled by habitat fac8 DECEMBER 1967
(29 Dec.)
Arranged by Charles G. Sibley (Yale University).
This symposium
will
concern
the
application
of
the
techniques of protein chemistry, specifically structural techniques, to the study of systematic problems. Techniques
which permit one to determine the sequence of amino
acids in a polypeptide chain or which provide an index
to part or all of the sequence will be discussed.
Charles G. Sibley, Richard A. Laursen, Russell F. Doolittle, and E. Margoliash.
Zoologists’ Library and Book Lounge
The Zoologists’ Library and Book Lounge will be open
throughout the meetings as a lounge and informal meeting
place. Ali zoologists are invited to visit this room and to
examine the special exhibits arranged there. The Lounge
again will feature the extensive collection of recent books
and monographs on zoological subjects.
Books in the collection include works on all aspects
of animal science: general zoology and biology texts, reference books, natural histories, works on principles and
philosophical aspects of zoology, popular books and guides,
periodicals, and monographs on specific groups of animals.
The collection includes most of the books on animals currently in print in the English language.
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