Object permanence tests on gibbons (Hylobatidae).

UNIVERSITY OF STIRLING CLARE CUNNINGHAM DEPARTMENT OF PSYCHOLOGY Cognitive Flexibility in Gibbons (Hylobatidae): Object Manipulation and Tool-Use

Systematic morphology and evolutionary anatomy of the autonomic cardiac nervous system in the lesser apes, gibbons (hylobatidae).

We examined the morphology of the autonomic cardiac nervous system (ACNS) on 20 sides of 10 gibbons (Hylobatidae) of three genera, and we have inferred the evolution of the anatomy of the primate ACNS. We report the following. (1) Several trivial intraspecific and interspecific variations are present in gibbons, but the general arrangement of the ACNS in gibbons is consistent. (2) Although the ...

Behavioral and Ecological Responses of Silvery Gibbons (Hylobates moloch) to Severe Habitat Degradation in West Java, Indonesia 2004 Conservation Small Grant Award Report

Descriptions of Javan gibbon social organization usually emphasize the small group size, territoriality, and monogamous mating pattern.. However, there are relatively few data on the distribution, behavior, or socioecology of this species (Kappeler, 1984; Nijman, 2001). These data are important for the conservation of this species, as well as for developing accurate evolutionary models of gibbo...

A complete species-level phylogeny of the Hylobatidae based on mitochondrial ND3-ND4 gene sequences.

The Hylobatidae (gibbons) are among the most endangered primates and their evolutionary history and systematics remain largely unresolved. We have investigated the species-level phylogenetic relationships among hylobatids using 1257 bases representing all species and an expanded data set of up to 2243 bases for select species from the mitochondrial ND3-ND4 region. Sequences were obtained from 3...

ClaSS MaMalIa Order PrIMateS SuBOrder HaPlOrrHINI ParvOrder CatarrHINI SuPerfaMIly HOMINOIdea faMIly HylOBatIdae

Males and females exhibit distinct color differentiation in many species, (e.g. Nomascus and Hoolock genera) although some show significant color variation unrelated to sex (e.g. the Hylobates genus). Aside from coloration, gibbon species can be distinguished by their vocalizations; mated couples in many species sing duets to display the strength of their pair bond and communicate territory ran...