Restoration of an Indiana, USA, stream: bridging the gap between basic and applied lotic ecology

BRIDGES BRIDGES is a recurring feature of J-NABS intended to provide a forum for the interchange of ideas and information between basic and applied researchers in benthic science. Articles in this series Abstract. Stream restoration attempts to reverse the global degradation of rivers and streams, but rigorous evaluations are needed to advance the science. We evaluated a 3 rd -order channelized Indiana (USA) stream that was restored in 1997 by constructing two meanders, each ϳ400 m long. Pool and riffle sequences were constructed, coarse substrate and wood were added to the channel, banks were stabilized and revegetated, and sedimentation was reduced by creating a sediment retention basin upstream. Habitat, periphyton, macroinvertebrates, and fishes were measured before restoration and for 5 y after restoration in the restored reaches and in an upstream, unrestored reach. Restoration improved habitat conditions (e.g., more pools, fewer fine sediments) in both restored reaches compared to the unrestored reach. Within 1 y after restoration, major trophic groups (i.e., periphyton, macroinvertebrates, and fishes) recovered to or exceeded levels in the degraded, unrestored reach. However, biotic responses varied with time, trophic level, and community parameter measured. Five years after the restoration, habitat quality, algal abundance, and macroinvertebrate density remained higher in the restored reaches, whereas macroinvertebrate diversity and fish abundance in the restored reaches were similar to or below levels in the unrestored, channelized reach. Although biotic recovery was relatively rapid, long-term persistence is uncertain because of continued sedimentation at a watershed scale. In many instances, reach-scale restorations may be ineffective in the face of basin-wide degradation. This study illustrates the importance of conducting long-term assessments of stream restorations, which can improve both knowledge and management of stream ecosystems

Multidecadal High Mortality Disease Events in Australian Domestic Geese Associated with a Novel Alphaherpesvirus, Designated Anatid Alphaherpevirus 2

Herpesviruses are ubiquitous viruses which infect a wide range of hosts. Novel herpesviruses are being increasingly detected in free-ranging bird populations and there are growing concerns for cross-species infection and spillover events. Herein, multiple sporadic outbreaks of mortality caused by a herpesvirus are described in domestic geese in Queensland, Australia. Goose herpesvirus was initially detected in 1989 in south-east Queensland, and this article details four further recent outbreaks and reports novel genome sequencing and phylogeny of the preliminarily designated anatid alphaherpesvirus 2 (AnHV-2). Affected flocks were housed outdoors and comingled with other domesticated and wild anseriforms and other birds which were unaffected by disease. Affected geese displayed anorexia, lethargy, weakness, vomiting, and diarrhoea prior to death within 12–24 hr of the onset of clinical signs. Post-mortem examinations showed variable hepatic necrosis, splenic necrosis, fibrinonecrotising enteritis, lymphoid necrosis, necrotising thymitis, necrotising adrenalitis, and vasculitis. Intranuclear inclusion bodies were observed in hepatocytes, biliary epithelium, small intestinal mucosal epithelium, thymus, endothelial cells, ovarian stromal cells, adrenal cortical cells, and neuronal cell bodies in peripheral nerve ganglia. Transmission electron microscopy visualised herpesviral particles in virus culture supernatant, and within the nuclei of hepatocytes, biliary epithelium, and endothelial cells in case tissues. The genome sequence of this herpesvirus, designated anatid alphaherpesvirus 2 (AnHV-2), is described. While investigating goose mortalities, archived isolate from a swan with suspected herpesvirus infection was tested and genome sequencing identified a further novel herpesvirus, proposed anatid alphaherpesvirus 3 (AnHV-3). The AnHV-2 and AnHV-3 genomes were more similar to each other, with a nucleotide identity of 76.1%, than to reference genome sequences. Phylogenetically, the new genomes formed a distinct clade within the alphaherpesvirus genus Mardivirus. We sequenced four AnHV-2 genomes from different cases and these did not display consistent divergence over time or distance. Expanded surveillance and outbreak testing are recommended, facilitated by the development of a specific real-time PCR for the rapid detection of AnHV-2

Screen Dance: Interfacing Culture and History in the Urban Space

Yarra Yarra, a Kulin nation meeting place pre-contact, is now the site of this metropolis called Melbourne, a grid overlaid on the landscape, a vertical convergence of glass, steel and network infrastructure. To negotiate this urban space is to conduct the rather colonial act of mapping: marking the screen, meeting on the screen and ultimately documenting via the screen. Long a contested space of conflicting and complimentary power structures, the contemporary urban city – as noted by Malcolm McCullough (2013) and William Gibson (2000) – have become intensely mediated sites of production that blend commercial and historical traditions of place and community. This is occurring in a variety of settings via the physical mediated body and the augmentation provided by the virtual media object. While personal, civic and corporate data certainly converge in the smart city so do the power flows of geology, culture and identity. These flows are informed by the narrative contexts given to them by a city’s inhabitants both past and present. Screen Dance, is a collaborative research project looking at the design and flow of screen-based information in the Melbourne CBD and how this links back - figuratively and literally - with the area's Indigenous and environmental heritage. By considering the rapidly approaching Augmented Reality developments in the areas of advertising, public data governance and information privacy, we question how this new virtual geography might be managed

Reassembling the Indigenous Public Sphere

This paper seeks to provide an initial theoretical grounding to assess a practical project: a new software application that attempts to be a beneficial resource in the field of Indigenous representation. As a starting point, we are concerned to provide a theoretical ground for considering the inherited and shifting spaces of Indigenous media representation. To this end, this paper reconsiders the strengths and weaknesses of debates surrounding the ‘Indigenous public sphere’. This is used as grounds for critically understanding the relations that constitute this field. Following this, we consider how a more materialist approach to publics might enable a productive reconceptualization, and in particular how digital media initiatives and shifting news markets may be contributing to change. Finally, drawing on this model, we outline both the ‘Wakul app’ project, and how this framework might inform an assessment of its impact

Social Control Theory and School Misbehavior: Examining the Role of Race and Ethnicity

Social control theory has been successfully utilized to investigate and explain school misbehavior; however, only a few studies have focused on the complex role of race and ethnicity. With a diverse and growing racial and ethnic minority population, exploring whether race and ethnicity moderate the relationship between social control theory and school misbehavior is warranted. This study utilizes data from the Educational Longitudinal Study of 2002, a nationally representative sample of 10th-grade students, to examine whether the relationship between social control theory and school misbehavior varies by race and ethnicity. The findings suggest that the relationship between elements of the social bond and school misbehavior varies across racial and ethnic groups. This study discusses the importance of focusing on race and ethnicity in criminological research as the United States becomes increasingly diverse. </jats:p

School-Based Activities, Misbehavior, Discipline, and Racial and Ethnic Disparities

School-based discipline can negatively shape the educational outcomes of students, particularly for racial and ethnic minorities. Because racial and ethnic minority youth are at risk for educational failure and marginalized within schools, academic and sport extracurricular activities are often presented as a means to ameliorate educational risk factors. Little is known, however, about the relationship between involvement in these activities and school-based discipline, particularly for racial and ethnic minority youth. This study uses data from the Education Longitudinal Study of 2002 and incorporates multilevel modeling techniques to examine whether the relationship between academic and sport extracurricular activities, misbehavior, and school-based discipline varies by race and ethnicity. This study suggests that while academic and sport extracurricular activities reduce the likelihood of school-based discipline for White students, the relationships for racial and ethnic minority are complex. The implications of the racial and ethnic disparity in school-based discipline in the United States are discussed

School-Based Activities, Misbehavior, Discipline, and Racial and Ethnic Disparities

School-based discipline can negatively shape the educational outcomes of students, particularly for racial and ethnic minorities. Because racial and ethnic minority youth are at risk for educational failure and marginalized within schools, academic and sport extracurricular activities are often presented as a means to ameliorate educational risk factors. Little is known, however, about the relationship between involvement in these activities and school-based discipline, particularly for racial and ethnic minority youth. This study uses data from the Education Longitudinal Study of 2002 and incorporates multilevel modeling techniques to examine whether the relationship between academic and sport extracurricular activities, misbehavior, and school-based discipline varies by race and ethnicity. This study suggests that while academic and sport extracurricular activities reduce the likelihood of school-based discipline for White students, the relationships for racial and ethnic minority are complex. The implications of the racial and ethnic disparity in school-based discipline in the United States are discussed. </jats:p