Developmental stress selectively affects the song control nucleus HVC in the zebra finch brain

Songbirds sing complex songs as a result of evolution through sexual selection. The evolution of such sexually selected traits requires genetic control, as well as selection on their expression. Song is controlled by a discrete neural pathway in the brain, and song complexity has been shown to correlate with the volume of specific song control nuclei. As such, the development of these nuclei, in particular the high vocal centre (HVC), is thought to be the mechanism controlling signal expression indicating male quality. We tested the hypothesis that early developmental stress selectively affects adult HVC size, compared with other brain nuclei. We did this by raising cross–fostered zebra finches (Taeniopygia guttata) under stressed and controlled conditions and determining the effect on adult HVC size. Our results confirm the strong influence of environmental conditions, particularly on HVC development, and therefore on the expression of complex songs. The results also show that both environmental and genetic factors affect the development of several brain nuclei, highlighting the developmental plasticity of the songbird brain. In all, these results explain how the complex song repertoires of songbirds can evolve as honest indicators of male quality.

Parasites affect song complexity and neural development in a songbird

There is now considerable evidence that female choice drives the evolution of song complexity in many songbird species. However, the underlying basis for such choice remains controversial. The developmental stress hypothesis suggests that early developmental conditions can mediate adult song complexity by perturbing investment in the underlying brain nuclei during their initial growth. Here, we show that adult male canaries (Serinus canaria), infected with malaria (Plasmodium relictum) as juveniles, develop simpler songs as adults compared to uninfected individuals, and exhibit reduced development of the high vocal centre (HVC) song nucleus in the brain. Our results show how developmental stress not only affects the expression of a sexually selected male trait, but also the structure of the underlying song control pathway in the brain, providing a direct link between brain and behaviour. This novel experimental evidence tests both proximate and ultimate reasons for the evolution of complex songs and supports the Hamilton–Zuk hypothesis of parasite-mediated sexual selection. Together, these results propose how developmental costs may help to explain the evolution of honest advertising in the complex songs of birds.

Developmental stress, social rank and song complexity in the European starling (Sturnus vulgaris)

Bird song is a sexually selected trait and females have been shown to prefer males that sing more complex songs. However, for repertoire size to be an honest signal of male quality it must be associated with some form of cost. This experiment investigates the effects of food restriction and social status during development on song complexity in the European starling (Sturnus vulgaris). Birds that experienced an unpredictable food supply early in life produced a significantly smaller repertoire of song phrases than those with a constant food supply. Social status during development was also significantly correlated with repertoire size, with dominant birds producing more phrase types. This study therefore provides novel evidence that social as well as nutritional history may be important in shaping the song signal in this species.

Developmental stress affects the attractiveness of male song and female choice in the zebra finch (Taeniopygia guttata)

Developmental stress has recently been shown to have adverse effects upon adult male song structure in birds, which may well act as an honest signal of male quality to discriminating females. However, it still remains to be shown if females can discriminate between the songs of stressed and non-stressed males. Here we use a novel experimental design using an active choice paradigm to investigate preferences in captive female zebra finches (Taeniopygia guttata). Nine females were exposed to ten pairs of songs by previously stressed and non-stressed birds that had learned their song from the same tutor. Song pairs differed significantly in terms of song complexity, with songs of stressed males exhibiting lower numbers of syllables and fewer different syllables in a phrase. Song rate and peak frequency did not differ between stressed and non-stressed males. Females showed a significant preference for non-stressed songs in terms of directed perching activity and time spent on perches. Our results therefore indicate that developmental stress affects not only the structure of male song, but that such structural differences are biologically relevant to female mate choice decisions.

Fleshed sacred : the carnal theologies of Nick Cave

Contents: Cultural contexts. The light within : the 21st century love songs of Nick Cave / Jillian Burt ; Planting seeds / Clinton Walker ; Nick Cave and the Australian language of laughter / Karen Welberry ; Nick Cave, dance performance and the production of masculinity / Laknath Jayasinghe -- Intersections. An audience for antagonism / Chris Bilton ; And the ass saw the angel : a novel of fragment and excess / Carol Hart ; Red right hand : the cinema and Nick Cave / Adrian Danks ; Grinderman : all stripped down / Angela Jones -- The sacred. From mutiny to calling upon the author : Cave's religion / Robert Eaglestone ; Oedipus wrecks : Cave and the Presley myth / Nathan Wiseman-Trowse ; Fleshed sacred : the carnal theologies of Nick Cave / Lyn McCredden ; The moose and Nick Cave : melancholy, creativity and love songs / Tanya Dalziell.

Not the holocaust memorial

Evoking Genocide compiles more than sixty short essays written by leading scholars and activists in the field of genocide studies. These authors pay eloquent tribute to the works of art and media that influenced their engagement with genocide and crimes against humanity. The subjects include books and stories, films, songs, drawings, documents, monuments, sculptures, personal testimonies, and even a Lego set. In an accessible and often deeply personal way, contributors explore their own relationships with the works in question. Edited by Adam Jones, recently selected as one of fifty key thinkers in Holocaust and genocide studies, Evoking Genocide makes an important contribution to the study of the art and culture of mass atrocity.

Vocal mimicry in songbirds

Baylis (1982, Acoustic Communication in Birds, Academic Press) decried the serious lack of experimental verification for the various hypotheses proposed to explain vocal mimicry in songbirds. With few exceptions, our understanding of the function and acquisition of this fascinating behaviour seems to have scarcely progressed. We examine the proposed functional explanations and supporting evidence, and summarize advances made since Baylis's (1982) review. We conclude that there is no compelling evidence to support any of the functional hypotheses but, rather, that almost all of the data concerning song mimicry are consistent with the learning mistakes hypothesis, whereby birds learn simple and common sounds, frequently using them in inappropriate contexts. Additionally, many apparently mimicked sounds are calls, not songs, which themselves may not be learned by the models. It is plausible that many examples of call mimicry are, in fact, due to evolutionary convergence.

Story vessels

Twelve sculptors were chosen to research and create a story vessel to represent the stories of the twelve wards of The City of Greater Geelong. I organised the community meetings for nine of the sculptors including myself.  This involved facilitating 27 meetngs.  I then documented and curated the exhibition of the twelve story vessels at three locations (Geelong City Hall, Johnstone Park and Federation Square).  This was part of the project called Connecting Identities in which other artists consulted with other communities to record stories, write and compose songs, poetry and performance art.

Amazing shapes : chirality

The use of songs to help learning of content is consistent with multi-sensory models of learning. Here, a song to the tune of “Amazing Grace” can be used in the classroom to enhance the learning of chirality and the Cahn-Ingold-Prelog priority rules.

Appropriation in the name of art: is a quotation exception the answer?

The Australian Law Reform Commission is at present considering the scope of exceptions to copyright infringement. Its consideration will no doubt be influenced to some degree by the outcome in EMI Songs Australia Pty Ltd v Larrikin Music Publishing Pty Ltd (2011) 191 FCR 444; (2011) 90 IPR 50 which concerned the quotation of a musical phrase in a later musical work. This article addresses the problem of creative appropriations and the extent to which a quotation exception, consistent with Art 10 of the Berne Convention, should be incorporated into Australian law. In doing so it considers the practical application of such a quotation exception in European jurisdictions (most notably Germany) and suggests the form in which such an exception might be incorporated into Australian law.

Carving into country: the work of Badger Bates

Badger Bates (William Brian Bates) was born on the Darling River at Wilcannia in 1947. His grandmother, Granny Moysey, a revered Paakantyi woman who spoke several Aboriginal languages, raised him, teaching him stories and traditional songs. This was the beginning of Badger’s journey into a complex and sophisticated knowledge system. As a child Badger experienced the knowledge and practice imparted by his grandmother which informs his artwork today. Badger learnt carving from her and other Paakantyi elders, and by 1986 he was selling his carvings of wood and emu eggs to the Australian Museum in Sydney.

Reproduction game demo

An 8 screen stereoscopic 3D Multi-user environment set in a circular formation. Paticipants are tracked by 8 kinect sensors as they move around the 360 degree installation. Participants inherit a species upon entering. Artificial Life based entities cluster towards the human particpants of their species and their songs evolve according to the interactions.

Exploring and expressing Italian musical heritage in Melbourne (Australia): a women’s community choir

Australia comprises many cultures, ethnicities, and languages. Belonging to community music groups by older people can enhance quality of life, offer a sense fulfilment, and provide a space through which cultural and linguistic identity may be shared and celebrated. This qualitative case study explores engagement by older members of La Voce Della Luna, an Italian women’s community choir based in Melbourne, Victoria. Older Australians, particularly those from culturally and linguistically diverse backgrounds frequently rely on voluntary community arts organisations to enhance quality of life. Singing together can provide ways for individuals and communities to express themselves, build community identity, improve quality of life, and celebrate cultural heritage. The members of the choir know that under their inspiring conductor they would learn new songs, new languages and new ways of performing. Their music director saw that the women’s singing together opened new horizons of social engagement and new ideas such as social justice and women’s rights.
This case is from the larger ongoing joint research project (2008 ongoing), Well-being and ageing: community, diversity and the arts in Victoria. Data were gathered from documentary sources and by individual and focus group semi-structured interviews (2013) and were analysed using interpretative phenomenological analysis. Significant themes emerged: social connection and combatting isolation, the maintenance and transmission of cultural heritage, and opening horizons about music making and social justice. This paper demonstrates that active music making makes it possible for older women to learn new skills, new ideas, and create for themselves a resilient community.

Preservice music students explore African music in an Australian tertiary context

Randai Hari Bela Negara

This was a traditional theatre form with an original script in Indonesian (as opposed to the local language of the region) that retold the events leading to the formation of the emergency government of Indonesian following Dutch aggression after Indonesia declared independence. The performance features an original script based on in-depth historical research, originally choreographed dance based on traditional styles, a play script for the actors, and original songs. The preparation of this script required extensive historical research, including interviews, as well as the conversion of traditional art genres into Indonesian for presentation in the modern context. This was the first time a randai, a traditional theatre form, has ben done in Indonesian and represents a significant innovation in the performing and literary arts. The performance involved dance, music, singing, written text, and acting, all of which were composed, directed, and overseen by the author.