摘要:

AbstractForms of aggression, their situational motivations and frequencies in Thomson's gazelle were investigated to elucidate the multiple functions of aggressive behavior as well as quantitative differences in encounters with opponents of different sex, age, and social classes. The study was conducted in the Serengeti National Park (Tanzania) where the gazelle population is estimated to total 600 000. Within three years, 4016 agonistic encounters were recorded and analyzed. Besides the confirmation of its conventionally recognized functions in territoriality, etc., the great role of intraspecific aggression in the coordination of group activities appears to be of special importance.

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01827.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractA surprisingly high proportion (42 %) of breeding pied flycatchers failed to mob a stuffed pygmy owl placed near the nests. To determine whether the range of effective stimulus objects eliciting mobbing could be extended in these “non‐mobbers”, a live owl, resembling the ineffective dummy in nearly all static owl traits, was briefly exposed. It evoked strong mobbing from all birds, as did the stuffed specimen on a subsequent presentation. The role of experience with live predators and the effect of labile properties of the latter on the mobbing response are disc

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01828.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractTo know whether cliff ledge nesting Herring Gull parents recognize other chicks, chicks from ground‐nesting pairs were brought onto the cliff ledges. Contrary to the latter, the cliff‐nesting gulls still adopt chicks after the 1st week of l

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01829.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractCrow calls of red jungle fowl(Gallus gallus)were analyzed for the purposes of (a) determining the extent of commonality and variability of acoustic features within and between individual roosters, and (b) characterizing the modal crow call of this species. Comparisons were made between crow calls of jungle fowl and those of domestic fowl to assess the extent to which domestication has affected these motor patterns.

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01830.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

AbstractThe social organization of the gerenuk in Tsavo East National Park, Kenya, is characterized by single adult ♂♂ on territories encompassing their entire home ranges, small ♀‐groups of variable composition, often associated with territorial ♂♂, and small groups of subadult ♂♂. There appear to be no non‐territorial adult ♂♂ (“bachelors”). Subadult ♂♂ wander about considerably, often alone, before they succeed in taking over a territory. Territorial ♂♂ perform linked urination/defecation and mark dry twigs with the antorbital gland secretion. Agonistic and courtship behaviour resemble those of other gazelles. Mother‐young relations confo

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01831.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY

摘要:

Book Reviewed in this article:Seidel, F. (1976): Entwicklungsphysiologie der Tiere. III. Morphologische und histologische Differenzierung der Organe. 2. Aufl.Schmidt‐Nielsen, K. (1975): Physiologische Funktionen bei Tieren. Gustav Fischer‐Verlag, Stuttgart.Urich, K. (1977): Vergleichende Physiologie der Tiere—Stoff‐ und Energiewechsel. 3. Aufl. Sammlung Göschen.Szöke, P., und M. Filip † (1977): The study of intonation structure of bird vocalizations: an inadequate application of sound spectrography (Über die Untersuchung von Lautstrukturen bei Vögeln: unsachgemäße Anwendung der Klangspektrographie).Curry‐Lindahl, K. (1975): Fåglar över land och hav. En global översikt av fåglarnas flyttning (Vögel über Land und Meeren. Eine weltweite Übersicht über den Vogelzug). Albert Bonniers Förlag, Stockholm.Rijksen, H. D. (1978): A field study on Sumatran Orang Utans,Pongo pygmaeus abeliiLesson 1827; Ecology, behaviour and conservation (Eine Freilanduntersuchung des Sumatra‐Orangs). Mededelingen Landbouw‐hogeschool 78–2, Wageningen, Nederland. (Nature Conservation Department, Communication No. 164).Tinbergen, N. (1977): Das Tier in seiner Welt, Bd. 1. Freilandstudien. Aus d. Engl. von A. Koehler. Piper&Co.Bateson, P. P. G., und R. A. Hinde,eds.(1976): Growing points in ethology (Wachstumsstellen der Ethologie). Cambridge University Press, Cambridge, London, New York, Melbourne.Varjú, D. (1977): Systemtheorie für Biologen und Mediziner. He

ISSN:0044-3573    

DOI:10.1111/j.1439-0310.1978.tb01832.x

出版商:Blackwell Publishing Ltd    

年代:1978

数据来源: WILEY