Broad-scale patterns of body size in squamate reptiles of Europe and North America

Aim To document geographical interspecific patterns of body size of European and North American squamate reptile assemblages and explore the relationship between body size patterns and environmental gradients. Location North America and western Europe. Methods We processed distribution maps for native species of squamate reptiles to document interspecific spatial variation of body size at a grain size of 110 x 110 km. We also examined seven environmental variables linked to four hypotheses possibly influencing body size gradients. We used simple and multiple regression, evaluated using information theory, to identify the set of models best supported by the data. Results Europe is characterized by clear latitudinal trends in body size, whereas geographical variation in body size in North America is complex. There is a consistent association of mean body size with measures of ambient energy in both regions, although lizards increase in size northwards whereas snakes show the opposite pattern. Our best models accounted for almost 60% of the variation in body size of lizards and snakes within Europe, but the proportions of variance explained in North America were less than 20%. Main conclusions Although body size influences the energy balance of thermoregulating ectotherms, inconsistent biogeographical patterns and contrasting associations with energy in lizards and snakes suggest that no single mechanism can explain variation of reptile body size in the northern temperate zone

Postcolonial reproductions: disability, indigeneity and the formation of the white masculine settler state of Australia

© 2015. There has been a growing debate within the broad field of postcolonial scholarship which seeks to challenge both its territorial boundaries with the advent of globalization and its limitations when applied to the realm of white-settler societies. The debate has been extremely fruitful in situating emerging scholarship that seeks to extend postcoloniality, its theoretical framing, and the internal processes of social categorization for peoples caught within the nation-state's territorial sphere. Unfortunately, disability and indigeneity remain largely absent from these fresh debates; or when included, are explored as singular fields of analytical inquiry with little intersectional dialogue. With this paper, I aim to extend these nascent debates by critically engaging with both disability and indigeneity as two interlocking sites of (post)colonial nation-state power. To explicate this argument, my analysis focuses on a key historical moment in the Australian experience – the formation of the colonial white-settler society of Australia in its early years (1901–1920s), comparing and contrasting the systems of administrative management of disability and indigeneity. In doing so, the paper reveals the deep materialities of white, able-bodied, masculine, (post)colonial settler rule that bring together disability and indigeneity via gender reproductive controls. The conclusion reflects on the transformative effects of managing transgressive bodies and minds under the white able-bodied settler state and the potential this opens to negotiate practices of solidarity