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Massive yet grossly underestimated global costs of invasive insects
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Available Online

Albert, Celine.

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Barbet-Massin, Morgane.

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Bellard, Celine.

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Bradshaw, Corey J.A.

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Courchamp, Franck.

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Fournier, Alice.

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Leroy, Boris.

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Roiz, David.

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Salles, Jean-Michel.

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Simard, Frederic.

2016
Insects have presented human society with some of its greatest development challenges by spreading diseases, consuming crops and damaging infrastructure. Despite the massive human and financial toll of invasive insects, cost estimates of their impacts remain sporadic, spatially incomplete and of questionable quality. Here we compile a comprehensive database of economic costs of invasive insects. Taking all reported goods and service estimates, invasive insects cost a minimum of US$70.0 billion per year globally, while associated health costs exceed US$6.9 billion per year. Total costs rise as the number of estimate increases, although many of the worst costs have already been estimated (especially those related to human health). A lack of dedicated studies, especially for reproducible goods and service estimates, implies gross underestimation of global costs. Global warming as a consequence of climate change, rising human population densities and intensifying international trade will allow these costly insects to spread into new areas, but substantial savings could be achieved by increasing surveillance, containment and public awareness.
Learning ecosystem complexity: a study on small-scale fishers' ecological knowledge generation

Garavito-Bermúdez, Diana

2016
Small-scale fisheries are learning contexts of importance for generating, transferring, and updating ecological knowledge of natural environments through everyday work practices. The rich knowledge fishers have of local ecosystems is the result of the intimate relationship fishing communities have had with their natural environments across generations (see e.g. Urquhart and Acott 2013). This relationship develops strong emotional bonds to the physical and social place. For fishing communities and fishers – who depend directly on local ecosystems to maintain their livelihoods – fishing environments are natural places for living, working and defining themselves. Previous research on fishers’ ecological knowledge has mainly been descriptive, i.e., has focused on aspects such as reproduction, nutrition and spatial-temporal distribution and population dynamics, from a traditional view of knowledge that only recognises scientific knowledge as the true knowledge. By doing this, fishers’ ecological knowledge has been investigated separately from the learning contexts in which it is generated, ignoring the influence of social, cultural and historical aspects that characterise fishing communities, and the complex relationships between fishers and the natural environments they live and work in. This thesis investigates ecological knowledge among small-scale fishers living and working in the ecosystems of Lake Vättern and the Blekinge Archipelago (Baltic Sea) in Sweden and explores how ecological knowledge is generated with particular regard to the influences of work and nature on fishers’ knowledge of ecosystems. The aim of this thesis is to contribute to the knowledge and understanding of informal learning processes of ecosystem complexity among small-scale fishers. This knowledge further contributes to the research field of ecological knowledge and sustainable use and management of natural resources. It addresses the particular research questions of what ecological knowledge fishers generate, and how its generation is influenced by their fishing work practices and relationships to nature. The thesis consists of three articles. Article I focuses on the need to address the significant lack of theoretical and methodological frameworks for the investigation of the cognitive aspects involved in the generation of ecological knowledge. Article II deals with the need to develop theoretical, methodological and empirical frameworks that avoid romanticising and idealising users’ ecological knowledge in local (LEK), indigenous (IEK) and traditional (TEK) ecological knowledge research, by rethinking it as being generated through work practices. Article III addresses the lack of studies that explicitly explore theories linking complex relations and knowledge that humans form within and of ecosystems. It also addressed the lack of attention from environmental education researchers to theory and empirical studies of ‘sense of place’ research, with a particular focus on environmental learning. Research into the question of what ecological knowledge fishers generate shows differences in their ways of knowing ecosystem complexity. These differences are explained in terms of the influences of the species being fished, and the sociocultural contexts distinguishing fishers’ connection to the fishing profession (i.e., familial tradition or entrepreneurship) (Article I), but also by the fishing strategies used (Article II). Results answering the research question of how work practices influence fishers’ knowledge of ecosystem complexity show a way of rethinking their ecological knowledge as generated in a continuous process of work (Article II), thus, far from romantic views of knowledge. Results answering the research question of how fishers’ relationships to nature influence their knowledge of ecosystem complexity demonstrate the complex interconnections between psychological processes such as identity construction, proximity maintenance and attachment to natural environments (Article III). Finally, more similarities than differences between fishers’ knowledge were found, despite the variation in cases chosen, with regards to landscape, target species, regulations systems and management strategies, fishing environments scales, as well as cultural and social contexts.
Combating Climate Change in the Pacific: Regional Governance, agency and dependency

McDuie-Ra, Duncan

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Williams, Marc

2016
From the perspective of Pacific island states and territories (PICTs) much of the intense speculation and debate over climate policy seems irrelevant and immature given the oft-repeated warnings of the severe consequences for low-lying islands and atoll countries of climate change. The Pacific is not just ‘any region’ when it comes to climate change but rather, as Farbotko (2010) argues, is an ‘experimental space’ of climate change ‘canaries’. The position of the Pacific at the frontline of climate change has spurred voluminous research, however studies of the politics of climate change within the region is limited, particularly with regard to and regional processes. This paper explores the regional politics of climate change in the Pacific. Within the grand architecture of global climate governance, the region provides compelling new insights into the ways climate change is constructed, governed, and shaped by—and in turn shapes—regional and global climate politics. Through an exploration of regional governance as a strategy by which small vulnerable states respond to urgent crises, the paper explores both the potential and the limitations of collective action on environmental issues following the United Nations Climate Change Conference (COP21) in Paris 2015. We argue that evolving regional governance on climate change is mobilizing resources and finance to combat climate change. On the surface it appears to be a successful manifestation of solidarity among states and territories facing a shared fate. This solidarity has been institutionalized in three key regional organizations that mobilize resources climate change action through distinct policy narratives about the place of the Pacific in global climate crisis. These organizations also distribute these resources to members. As a result climate finance in the Pacific is mostly generated by multilateral rather than bilateral donors. However, despite this apparent demonstration of regional agency, beneath the surface regional climate governance is heavily dependent on donors for finance and expertise. This exposes a dual vulnerability of PICTs. They are extremely vulnerable to the impacts of climate change while also being extremely vulnerable to growing dependencies on donors to address these impacts.