Sedimentary Environment Influences the Effect of an Infaunal Suspension Feeding Bivalve on Estuarine Ecosystem Function

The suspension feeding bivalve Austrovenus stutchburyi is a key species on intertidal sandflats in New Zealand, affecting the appearance and functioning of these systems, but is susceptible to several environmental stressors including sedimentation. Previous studies into the effect of this species on ecosystem function have been restricted in space and time, limiting our ability to infer the effect of habitat change on functioning. We examined the effect of Austrovenus on benthic primary production and nutrient dynamics at two sites, one sandy, the other composed of muddy-sand to determine whether sedimentary environment alters this key species' role. At each site we established large (16 m2) plots of two types, Austrovenus addition and removal. In winter and summer we deployed light and dark benthic chambers to quantify oxygen and nutrient fluxes and measured sediment denitrification enzyme activity to assess denitrification potential. Rates of gross primary production (GPP) and ammonium uptake were significantly increased when Austrovenus was added, relative to removed, at the sandy site (GPP, 1.5 times greater in winter and summer; ammonium uptake, 8 times greater in summer; 3-factor analysis of variance (ANOVA), p<0.05). Denitrification potential was also elevated in Austrovenus addition plots at the sandy site in summer (by 1.6 times, p<0.1). In contrast, there was no effect of Austrovenus treatment on any of these variables at the muddy-sand site, and overall rates tended to be lower at the muddy-sand site, relative to the sandy site (e.g. GPP was 2.1 to 3.4 times lower in winter and summer, respectively, p<0.001). Our results suggest that the positive effects of Austrovenus on system productivity and denitrification potential is limited at a muddy-sand site compared to a sandy site, and reveal the importance of considering sedimentary environment when examining the effect of key species on ecosystem function

Un-nation branding: the cities of Tel Aviv and Jerusalem in Israeli soft power

This chapter presents a theory of ‘un-nation branding’. We define this as the practice of promoting a nation-state with minimal or even no reference to the nation-state. In contrast to nation branding, un-nation branding involves states symbolising themselves as/through cities (or regions) in order to make themselves attractive to others. In articulating this theory, we focus on the case study of Israel’s ‘Two Cities. One Break’ advertising campaign. We highlight how this campaign serves to visually represent Israel as the cities of Tel Aviv and Jerusalem. As a practice of un-nation branding, we argue that the ‘Two Cities. One Break’ campaign silences contentious aspects of the Israeli state, such as questions about borders, settlements and conflict. As such, this campaign is demonstrative of the importance of un-nation branding for states in the twenty-first century, and we suggest several implications of un-nation branding as well as future directions for research into the role of cities in contemporary accounts of soft power