The regulation of cyber warfare under the jus ad bellum

This chapter evaluates the potential for legal regulation of the resort to cyber warfare between states under the ‘jus ad bellum’ (the law on the use of force). Debate in the literature has largely concerned whether cyber warfare falls within the scope of Article 2(4) UNC. The first part of this chapter sets out this debate. It then goes on to argue that the ‘Article 2(4) debate’ often misses the fact that an act of cyber warfare can be considered a breach of a different legal rule: the principle of non-intervention. The chapter further considers some of the issues in applying either the prohibition of the use of force or the principle of non-intervention to cyber warfare, and then concludes by arguing that the debate should be reoriented to focus on another existing international legal obligation: the duty to prevent cyber-attacks.

How to be a fig wasp down under: the diversity and structure of an Australian fig wasp community

Endophytic insects and their parasitoids provide valuable models for community ecology. The wasp communities in inflorescences of fig trees have great potential for comparative studies, but we must first describe individual communities. Here, we add to the few detailed studies of such communities by describing the one associated with Ficus rubiginosa in Australia. First, we describe community composition, using two different sampling procedures. Overall, we identified 14 species of non-pollinating fig wasp (NPFW) that fall into two size classes. Small wasps, including pollinators, gallers and their parasitoids, were more abundant than large wasps (both galler and parasitoid species). We show that in figs where wasps emerge naturally, the presence of large wasps may partly explain the low emergence of small wasps. During fig development, large gallers oviposit first, before and around the time of pollination, while parasitoids lay eggs after pollination. We further show that parasitoids in the subfamily Sycoryctinae, which comprise the majority of all individual NPFWs, segregate temporally by laying eggs at different stages of fig development. We discuss our results in terms of species co-existence and community structure and compare our findings to those from fig wasp communities on other continents.