Título: Factors affecting vigilance within wild mixed-species troops of saddleback (Saguinus fuscicollis) and moustached tamarins (S. mystax)
Autores: Smith, Andrew C.
Kelez, Shaleyla
Buchanan-Smith, Hannah M.
Fecha: 2010-04-27
2010-04-27
2004-05
Publicador: Anglia Ruskin University
Fuente:
Tipo: Article
Tema: vigilance
predation
interspecific differences
Saguinus
sex
Descripción: The original publication is available at springerlink.com.
We examine vigilance within a mixed-species troop of saddleback (Saguinus fuscicollis) and moustached (S. mystax) tamarins over a complete year. Saddleback tamarins were consistently more vigilant than moustached tamarins. This may be linked to their preference for lower strata. In accordance with previous studies of other primates, vigilant tamarins of both species were significantly further away from their nearest neighbours, and were also at lower heights in the forest than non-vigilant individuals. There was no observed sex difference in the amount of time spent vigilant. In terms of modes of scanning, the saddleback tamarins looked up significantly more frequently than the moustached tamarins, whereas there was no difference between the species in the frequency of side sweeps. There were no differences between the sexes in the frequencies of either type of vigilant behaviour. The proportion of time spent vigilant was higher than average immediately prior to entering a sleeping site for saddleback tamarins, but not for moustached tamarins. Both species were more vigilant immediately after exiting a sleeping site than at other times of the day. There was significant variation in the amount of time devoted to vigilance over the course of the year. These findings are discussed with respect to the social structure, ecology and main predator threats facing these species.
Idioma: Inglés

Artículos similares:

Development of a harmonised method for the profiling of amphetamines: I. Synthesis of standards and compilation of analytical data por Aalberg, Laura,Andersson, Kjell,Bertler, Christina,Borén, Hans,Cole, Michael D.,Dahlén, Johan,Finnon, Yvonne,Huizer, Henk,Jalava, Kaisa,Kaa, Elisabet,Lock, Eric,Lopes, Alvaro,Poortman-van der Meer, Anneke,Sippola, Erkki
Factors affecting group spread within wild mixed-species troops of saddleback and mustached tamarins por Smith, Andrew C.,Buchanan-Smith, Hannah M.,Surridge, Alison K.,Mundy, Nicholas I.
Development of a harmonised method for the profiling of amphetamines: II. Stability of impurities in organic solvents por Aalberg, Laura,Andersson, Kjell,Bertler, Christina,Cole, Michael D.,Finnon, Yvonne,Huizer, Henk,Jalava, Kaisa,Kaa, Elisabet,Lock, Eric,Lopes, Alvaro,Poortman-van der Meer, Anneke,Sippola, Erkki,Dahlén, Johan
Peripheral refraction for distance and near vision in emmetropes and myopes por Calver, Richard I.,Radhakrishnan, Hema,Osuobeni, Ebi P.,O'Leary, Daniel J.
Development of a harmonised method for the profiling of amphetamines: III. Development of the gas chromatographic method por Andersson, Kjell,Jalava, Kaisa,Lock, Eric,Finnon, Yvonne,Huizer, Henk,Kaa, Elisabet,Lopes, Alvaro,Poortman-van der Meer, Anneke,Cole, Michael D.,Dahlén, Johan,Sippola, Erkki
Effect of positive and negative defocus on contrast sensitivity in myopes and non-myopes por Radhakrishnan, Hema,Pardhan, Shahina,Calver, Richard I.,O'Leary, Daniel J.
Development of a harmonised method for the profiling of amphetamines: IV. Optimisation of sample preparation por Andersson, Kjell,Jalava, Kaisa,Lock, Eric,Huizer, Henk,Kaa, Elisabet,Lopes, Alvaro,Poortman-van der Meer, Anneke,Cole, Michael D.,Dahlén, Johan,Sippola, Erkki
Crowding under scotopic conditions por Simunovic, Matthew P.,Calver, Richard I.
10