Vertebrates show a diverse array of social behaviors associated with territoriality. Field and laboratory experiments indicate that underlying themes-including mechanisms-may exist. For example in birds, extensive evidence over many decades has implicated a role for testosterone in the activation of territorial aggression in reproductive contexts. Territoriality at other times of the year appea...

Sexual size dimorphism (SSD) varies in animals from male biased to female biased. The evolution of SSD is potentially influenced by a number of factors, such as territoriality, fecundity, and temporal breeding patterns (explosive vs. prolonged). In general, frogs show female-biased SSD with broad variance among species. Using comparative methods, we examine how different selective forces affect...

Parasites are ubiquitous components of the environment that contribute to behavioural and life-history variation among hosts. Although it is well known that host behaviour can affect parasite infection risk and that parasites can alter host behaviour, the potential for dynamic feedback between these processes is poorly characterized. Using Grant's gazelle (Nanger granti) as a model, we tested f...

The EU Water Framework Directive (EUWFD) of 2000 requires that all EU member states "protect, enhance and restore" rivers to attain good surface water quality by 2015. To achieve this mandate, member states divide themselves into watershed basins (River Basin Districts) for the purposes of monitoring and remediation, even if those districts cross international borders. This paper examines three...

Bu çalışma, Avrupa Birliği’nin (AB) teritoryal yapısını, münhasıran teritoryalitenin siyasal boyutu kapsamında analiz etmektedir. AB’nin niteliği, ağırlıklı olarak modern ile post-modern veya post-nasyonel şeklinde tek bir kavram altında birleştirilebilecek yaklaşımlar ve bunların sonuçları açısından ele alınmaktadır. kapsamda yapılmış olan çalışmalar da genellikle ya zayıf olmayan örgütlenme o...

Examining some issues and challenges for ensuring the universal right to healthcare in Brazil, this paper explores the findings of a government project conducted in 2003 to broaden the approach to healthcare problems in Brazil, based on dialogs between government and society that supplement institutionalized approaches to social participation in healthcare management. Starting with an overview ...

I propose a concept of effective sovereignty to argue that states participate in sovereignty regimes that exhibit distinctive combinations of central state authority and political territoriality. Two basic conclusions, drawing from recent research in political geography and other fields, are that sovereignty is neither inherently territorial nor is it exclusively organized on a state-by-state b...