Journal ArticleDOI
The Function of Howling in Red Howler Monkeys (Alouatta Seniculus)
Reads0
Chats0
TLDR
The lauten Rufe der Roten Brullaffen (Alouatta seniculus) wurden wahrend eines Jahres in vier nachbarlichen Gruppen, deren Territorialgebiete sich uberschnitten, beobachtet as mentioned in this paper.Abstract:
Die lauten Rufe der Roten Brullaffen (Alouatta seniculus) wurden wahrend eines Jahres in vier nachbarlichen Gruppen, deren Territorialgebiete sich uberschnitten, beobachtet. Obwohl die Brullaffen aus verschiedenen Anlassen brullten, waren mindestens 94.2% der Rufe jeder der beobachteten Gruppen wahrend des Tages gegen zu nahe, sichtbare Affen gerichtet, besonderes gegen solitare Tiere und gegen nachbarliche Gruppen. Mannchen, die in der eigenen Gruppe keine Konkurrenz hatten, zeigten erheblich hohere Brullraten wahrend des Tages, als solche, die Konkurrenten in ihrer Gruppe hatten. Bei Begegnung verschiedener Gruppen brullten die in geringerer Anzahl vertretenen Mannchen derjenigen Gruppe wesentlich haufiger, als die der Gruppe, die mehr Mannchen aufwies. Diese Beobachtungen zeigen an, dass die lauten Rufe der Roten Brullaffen zur Einschatzung ihrer Gegner verwendet werden, unter Vermeidung alternativer energieaufwendiger Jagden und Kampfe. Es wird vorgeschlagen, dass die Hauptfunktion des Gebrulls der Roten Brullaffen dazu bestimmt ist, die solitaren sowie die untergeordneten Mannchen in den verschiedenen Nachbargruppen von jedem Versuch abzuhalten, sie zu vertreiben und zu ersetzen.read more
Citations
More filters
Journal ArticleDOI
Armaments and ornaments: an evolutionary explanation of traits of dual utility
TL;DR: Secondary sexual characters in many species function both in male-male competition and as cues for female choice, and a literature compilation of existing knowledge of traits with this dual role is compiled.
Journal ArticleDOI
Contest and scramble competition: patterns of female aggression and ranging behavior among primates
TL;DR: Examination of the covariance of female aggression and ranging behavior among 20 species of primates in an attempt to better explain the variation in female relationships within and between groups of primates shows that groups of females are aggressive toward other groups and that home-range size increases with increasing group size in most species.
Journal ArticleDOI
Diana monkey long-distance calls : messages for conspecifics and predators
TL;DR: It is concluded that, in addition to their function in perception advertisement, diana monkey long-distance calls function as within-group semantic signals that denote different types of predators.
BookDOI
Adaptive radiations of neotropical primates
TL;DR: New Perspectives on the Pithecines (Pithecia, Cacajao, Chiropotes, Callicebus, Aotus) and the Evolution of Positional Behavior in the Saki-Uakaris S.L. Rosenberger.
Journal ArticleDOI
Differential Costs of Locational and Social Dispersal and Their Consequences for Female Group-Living Primates
TL;DR: It is suggested that when there are few, if any, costs of social and locational dispersal (inferred from moderate to extensive home range overlap and the absence of aggression between groups of females), female transfer in Old World anthropoids will be obligate when groups of Females cannot be monopolized by a single male.
References
More filters
Book
Nonparametric statistics for the behavioral sciences
TL;DR: This is the revision of the classic text in the field, adding two new chapters and thoroughly updating all others as discussed by the authors, and the original structure is retained, and the book continues to serve as a combined text/reference.
Journal ArticleDOI
Assessment strategy and the evolution of fighting behaviour.
TL;DR: Predictions compatible with the observations are given, indicating that RHP loss alone can be adequate to explain withdrawal: escalation behaviour.
Book
Introduction to Biostatistics
F. James Rohlf,Robert R. Sokal +1 more
TL;DR: In this article, the authors introduce the concept of biostatistics and introduce the Biostatistic Approach to Biometrics (BAPB) as a method for biometrics.
Journal ArticleDOI
The logic of asymmetric contests
TL;DR: In this article, a theoretical analysis is made of the evolution of behavioral strategies in contest situations, and it is concluded that in asymmetric contests the ESS is likely to be a "mixed" strategy; that is, either the population will be genetically polymorphic or individuals will be behaviourally variable.
Journal ArticleDOI
On the Occurrence and Significance of Motivation-Structural Rules in Some Bird and Mammal Sounds
TL;DR: It is proposed that many sounds in species' repertoires are evolved from motivation-structural rules derived from selection pressures favoring the use of communication instead of, or in conjunction with, fighting to attain resources.