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Aggressive Communication By Larus Glaucescens Part Vii. the Role of the Intruder

Aggressive Communication By Larus Glaucescens Part Vii. the Role of the Intruder AGGRESSIVE COMMUNICATION BY LARUS GLAUCESCENS PART VII. THE ROLE OF THE INTRUDER by ERNEST R. SCHWAB1) and JOHN F. STOUT2) (Biology Dept., Andrews University, Berrien Springs, Michigan 49104, U.S.A.) (With 13 Figures) (Acc. 1-I-1991) Introduction The importance of aggressive behavior in territory maintainance by gulls (Laridae) has been well established (TINSERCEN, 1954, 1959; JAMES- VEITCH & BOOTH, 1954; MOYNIHAN, 1955; VERMEER, 1963). Postures and functions of individual behaviors used during aggressive encounters have been described with varying degrees of rigor (MOYNIHAN, 1958; TINBERGEN, 1969, 1961; STOUT et al., 1969; STOUT & BRASS, 1969; STOUT, 1975; GALUSHA & STOUT, 1977). Differences in the communicative func- tions of a given behavior have been found to be influenced by both the physical orientation of interacting gulls with respect to each other, and the context of individual behaviors within a sequence (HAYWARD et al., 1977; AMLANER & STOUT, 1978). Aggressive tendency is more easily evaluated for territory residents than intruders due to their active role as territory defender. Conse- quently, resident threat is better understood than intruder threat. STOUT & BRASS (1969) suggested that during a display by Larus glaucescens, degree of defender threat was importantly conveyed by head level. STOUT (1975) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Aggressive Communication By Larus Glaucescens Part Vii. the Role of the Intruder

Stout, John F.; Schwab, Ernest R.
Behaviour , Volume 117 (3-4): 161 – Jan 1, 1991
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References (5)

Publisher
Brill
Copyright
© 1991 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/156853991X00517
Publisher site
See Article on Publisher Site

Abstract

AGGRESSIVE COMMUNICATION BY LARUS GLAUCESCENS PART VII. THE ROLE OF THE INTRUDER by ERNEST R. SCHWAB1) and JOHN F. STOUT2) (Biology Dept., Andrews University, Berrien Springs, Michigan 49104, U.S.A.) (With 13 Figures) (Acc. 1-I-1991) Introduction The importance of aggressive behavior in territory maintainance by gulls (Laridae) has been well established (TINSERCEN, 1954, 1959; JAMES- VEITCH & BOOTH, 1954; MOYNIHAN, 1955; VERMEER, 1963). Postures and functions of individual behaviors used during aggressive encounters have been described with varying degrees of rigor (MOYNIHAN, 1958; TINBERGEN, 1969, 1961; STOUT et al., 1969; STOUT & BRASS, 1969; STOUT, 1975; GALUSHA & STOUT, 1977). Differences in the communicative func- tions of a given behavior have been found to be influenced by both the physical orientation of interacting gulls with respect to each other, and the context of individual behaviors within a sequence (HAYWARD et al., 1977; AMLANER & STOUT, 1978). Aggressive tendency is more easily evaluated for territory residents than intruders due to their active role as territory defender. Conse- quently, resident threat is better understood than intruder threat. STOUT & BRASS (1969) suggested that during a display by Larus glaucescens, degree of defender threat was importantly conveyed by head level. STOUT (1975)

Journal

Behaviour – Brill

Published: Jan 1, 1991

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