Taro leaf blight (caused by the Oomycete

A detailed account of symptoms produced by Colletotrichum gloeosporioides on susceptible and resistant cultivars of yam {Dioscorea alata) in Solomon Islands is given. A superficial blackening of upper leaf surfaces of some cultivars is unusual and worthy of further study. In pathogenicity tests with isolates of C gloeosporioides from various sources, those that were virulent on D. alata were all from D. alata except one from D. esculema and one from Cucumis sativus but only nine of 30 isolates from D. alata were virulent on this host. Since all four isolates of the yam pathogen tested on D. nummuiaria and D. trifida were virulent, it is inappropriate to retain the epiphet f. sp. alatae proposed by earlier authors. Considerable variation in cultural morphology existed among virulent isolates, the only consistent character being production of dark pigment, although this was also produced by some saprophytic isolates. Most reisolations of C. glveosporioides from lesions resulting from inoculation yielded isolates identical with the original inoculum but also some reisolates had a different morphology.

Climate change researchers argue that a residual domain exists beyond the limits of adaptation to prevent deleterious climate change impacts: this has been labeled as "loss and damage." Over the last 8 years, there has been significant growth in loss and damage scholarship thus making it imperative to take stock of what we know already and directions for future research. We undertook a quantitative review of academic publications (n = 122) in the loss and damage field to date and documented study characteristics, thematic areas, trends, gaps, and opportunities. The first publication appeared in 2010 before a significant increase in published research after 2013. Although increasingly diverse over time, loss and damage studies have primarily focused on technical, political, and normative questions. Our analysis suggests the following: that researchers predominately conceptualize loss and damage as "limits to adaptation"; that the literature is more practical (i.e., descriptive, does not challenge underlying presuppositions) than critical (i.e., challenges underlying presuppositions) in orientation; that loss and damage is conceived as both an occurring and future condition; and that economic dimensions of loss and damage are prioritized in studies. Recommended future research directions include empirical and theoretical explorations of the potential for transformational change; understanding what people value and how they can engage with loss and grief; ensuring the perspectives of the most vulnerable groups are included in decision-making; and greater policy-relevant research and critical analyses of loss and damage conceptualizations and the Warsaw International Mechanism.

The societal costs of disasters around the world are continuing to increase and Pacific Island countries are considered some of the most vulnerable. This is primarily due to a combination of high hazard exposure coupled with a range of social, economic, physical, and political vulnerabilities. This article contributes to the growing body of work that aims to understand the causal factors of disaster vulnerability, but with a specific focus on small island developing states. The article first develops a framework for understanding disaster vulnerability, drawing on extensive literature and the well-established Methods for the Improvement of Vulnerability in Europe (MOVE) framework, and second, applies this adapted framework using empirically-derived data from fieldwork on Emae Island, Vanuatu to provide a working understanding of the causal elements of disaster vulnerability. Drawn from a significant body of scholarship at the time, the MOVE framework was primarily developed as a heuristic tool in which disaster vulnerability is considered to be a function of exposure, susceptibility (socially, economically, physically, culturally, environmentally, institutionally), and a lack of resilience. We posit that this adapted framework for small islands should also include historical susceptibility, and we prefer livelihood resilience (as capabilities, social capital, knowledge, participation, and human rights) over lack of resilience. We maintain that understanding disaster vulnerability holistically, which is inclusive of both strengths and drawbacks, is crucial to ensure that limited resources can target the causal factors that produce vulnerability and help safeguard and improve livelihoods in both the short and long term.

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Anthropogenic climate change is leading to widespread losses around the world. While the focus of research over the last decade has largely been on economic or tangible losses, researchers have begun to shift their focus to understanding the non-economic or intangible dimensions of loss more deeply. Loss of life, biodiversity and social cohesion are some of the losses that are beginning to be explored, along with Indigenous and local knowledge (ILK) and cultural heritage. These latter two form the basis of this systematic review of 100 studies to take stock of what we know about climate-driven losses to ILK and cultural heritage, how such losses manifest and how they are overcome, revealing gaps in our knowledge and carving a path for future research.