Dokumente Fakultät für Biologie und Psychologie (inkl. GAUSS) nach Gutachter "Kappeler, Peter M. Prof. Dr."
Anzeige 21-40 von 47
-
Immature development in wild Assamese macaques (Macaca assamensis)
(2016-10-11)Relationships between adult attributes and lifetime fitness have been previously explored in numerous studies, but although many adult attributes diversify during childhood or even prenatally, and although lifetime fitness ... -
Inequality in nature. Patterns of reproductive skew among male redfronted lemurs (Eulemur fulvus rufus)
(2009-01-22)Due to male-male competition over access to fertile females, small groups of female primates are predicted to contain only one adult male. The gregarious lemurs of Madagascar significantly ... -
Influence of social tolerance on social learning
(2014-11-10)One outstanding feature of modern human societies is the complex cultural behaviour they exhibit. Although we do not find comparable capacities for culture in other species, some elements of culture are present in the ... -
Influences of ecological factors on vocal communication in olive baboons (Papio hamadryas anubis)
(2008-11-06)In non-human primates, flexibility is largely documented in usage of vocal signals, while it appears more limited in vocal production. The present thesis adopts two perspectives to investigate the degree of flexibility in ... -
Intergroup relationships in Verreaux's sifakas (Propithecus verreauxi)
(2015-12-15)How animals achieve collective action for territorial defense and how they establish relationships between neighboring groups has recently become a central topic in the study of animal behavior. The power of a group can ... -
Das Leben in der napoleonischen Armee - interdisziplinäre Untersuchung eines Massengrabs aus Kassel, Hessen
(2013-10-25)In 2008, a mass grave was found on the grounds of the University of Kassel, Germany. There was no evidence helping to identify them or throwing light on the cause of their death. Mainly due to 14C age determination and ... -
Male Reproductive Strategies in Verreaux's Sifaka (Propithecus verreauxi)
(2009-04-28)The lemurs of Madagascar are the evolutionary endpoints of a spectacular primate adaptive radiation and provide a unique opportunity to study convergent evolution in social organization. ... -
Measuring communicative complexity across modalities: a new framework in the context of the “social complexity hypothesis” and its application in true lemurs
(2021-03-25)Animals exhibit an astonishing diversity of communicative systems, with substantial variation in both the nature and the number of signals they produce. Variation in communicative complexity has been conceptually and ... -
Molecular evolution of primates - featuring mobile elements
(2009-03-12)With at least 66 genera and about 350 species, the order Primates is one of the most diverse mammalian orders. Even though the phylogenetic relationships among major lineages are elucidated, ... -
Molecular mechanisms of myelin membrane biogenesis
(2008-03-26)During vertebrate brain development, axons are ensheathed by myelin, an insulating membrane generated by oligodendrocytes. Our aim is to elucidate the cellular machinery that is required for the formation of this membrane. ... -
Phylogeny of Gibbons (Family Hylobatidae) with Focus on Crested Gibbon (Genus Nomascus)
(2010-05-10)Although the phylogeny and phylogeography of gibbons (Hylobatidae), a primate family endemic to Southeast Asia, has been studied in detail, phylogenetic relationships among taxa remain ... -
Roots of Primate Cognition. The Primate Cognition Test Battery applied to three species of lemurs (Varecia variegata, Lemur catta and Microcebus murinus).
(2018-05-16)Compared to other mammals, primates have evolved relatively large brains and outstanding cognitive skills. Given that brain tissue is energetically very costly, one major evolutionary question concerns possible selection ... -
Seeing versus Doing: Causal Bayes Nets as Psychological Models of Causal Reasoning
(2006-06-20)This dissertation is concerned with the question of how people infer the consequences of active interventions in causal systems when only knowledge from passive observations is available. ... -
Sex-specific aging: Sex differences in survival and health in a wild primate population
(2015-01-15)Ageing influences the functioning of most living organisms in myriad ways and has profound consequences for their reproductive fitness and survival. Age-related changes in the functioning of an organism are thought to ... -
Sex-specific differences in dispersal propensities and their consequences for grey mouse lemurs (Microcebus murinus)
(2012-10-22)Dispersal, the permanent relocation or change of social group of an organism, is an almost ubiquitous phenomenon among taxa. Sex-biased dispersal (SBD) propensities and/or distances are of one of the most common general ... -
Social organisation and mating system of the fosa (Cryptoprocta ferox)
(2012-09-24)Mammalian mating systems are closely related to the social organisation of a species, which in turn is determined by sex-specific selection pressures with respect to access to limited resources. In previous studies of ... -
Social organisation of the narrow-striped mongoose (Mungotictis decemlineata) in Kirindy Forest C.N.F.E.R.E.F., Madagascar
(2016-02-16)The diversity of ecological and behavioural adaptations of the Carnivora makes them an exemplary group for studying patterns of mammalian social evolution. In particular, species displaying sex-specific forms of social ... -
The Chemical Ecology of Primate Seed Dispersal
(2016-04-06)Many tropical angiosperms rely on frugivores for seed dispersal and evolved fleshy fruits to attract them. Although both sides of the interaction are generalists, frugivores do not feed on the full range of fruit species ... -
The conservation biology of the leopard (Panthera pardus)in Gabon
(2009-06-23)The leopard (Panthera pardus) has the greatest geographic distribution of the wild cats, and is the most abundant large felid in Africa. Tropical rainforests comprise a large part of ... -
The effect of visible skin condition on the perception of female facial age, health, and attractiveness
(2011-09-14)Evolutionary psychologists argue that humans have evolved preferences for those facial features that signal health and fertility and thus facilitate mate selection. While there is ample ...