The study of invasive plants and animals might be seen as the domain of biology and environmental managers. But in a recent piece I argue for a “critical” approach due to the deeply social nature of invasion landscapes, the power relations affecting the science of invasions, and the differential impacts of weed or pest control on lives and landscapes. By “critical” invasion science, I mean research that is informed by social theories, with a sensibility to questions of social justice and to the social construction of scientific knowledge. The piece investigates several aspects of invasion science ripe for critical analysis: the history of the science (to understand what the science is doing and why), the terminology and categories of analysis, and the highly contested social, political, and ethical context within which invasion management takes place. The piece conclude with four proposals for further work in critical invasion science and examples of the types of questions it might ask. Read the rest of this entry »
Governance of forests, food commodities, and rivers: introducing my current doctoral team
May 25, 2018I’d like to introduce my current doctoral team, who are a great pleasure to work with. Their research interests have coalesced around the political ecology of environmental governance, specifically of forests, commodities, and rivers. In other words, who decides, who wins, who loses, and why, when decisions are made about trees, water, fish, cocoa, and sheep? What ideas are decisions based on, and how does the materiality of the object shape the outcomes? Here are some brief words on the team and their interests, grouped by three general themes: Read the rest of this entry »
When invasion ecology looks at cities and urban areas
November 10, 2017
The historical roots of urban invasion studies across the rural–rural-wild spectrum. Fig. 1 in Salomon Cavin & Kull 2017. Kindly drawn by Lionel Cavin.
The study of invasive plants and animals has started to pay attention to cities. In a paper just out, written by my colleague Joëlle Salomon Cavin and me, we document this ‘urban turn’ and ask what its implications are. Specifically, our paper does a few things. We review how the ecological sciences in general have long had blinders as far as matters urban go, but also the existence of alternative paradigms – notably in 20th century European circles and in diverse ‘urban ecology’ traditions. Then, we look in more detail at how invasion biology has dealt with (or ignored) cities. In doing so, we Read the rest of this entry »
Socio-ecological landscapes of Thừa Thiên-Huế province
September 19, 2017
Unrecognizable 20 years ago: Acacia plantations and new road in Nam Đông district, Thừa Thiên-Huế province.
The past week marked the launch of our new, Swiss government funded research project on the “forest transition” in Vietnam, which I’m leading in collaboration with colleagues Trần Nam Thắng and Ngô Trí Dũng of Huế University and Roland Cochard at Unil (see previous blog). The project aims to promote sustainable forest management and resilient rural livelihoods in the rapidly changing forest landscapes of this region.
Announcing new project on forest landscapes in Vietnam (with PhD post)
April 25, 2017Forest in Vietnam can mean many things. There are the dense, dipterocarp rainforests that have divulged mammal species previously unknown to science, like the saola. There are also the vast plantations of exotic acacias growing wood for industry, as I detailed in a previous blog entry. And these forests have changed rapidly in the past few decades in step with the country’s economy and politics. The country is often seen to have undergone a “forest transition”, whereby a previous history of deforestation transitions to a new phase characterised by forest stability and indeed regrowth (albeit largely with exotic plantations). In a new research-for-development project (see PhD job ad here), we intend to investigate the exact nature of the forest transition and its feedback into sustainable development for the heavily peopled rural landscapes of Vietnam.

Acacia mangium, forest plantations, and natural rainforest in A Luoi district, Vietnam
Invasive species: interdisciplinarity, ecosystem (dis)services, and aesthetics
February 21, 2017Announcing a series of new publications on “invasive species”, all from the Socio-ecology of Acacia project in which I participated (funded by SESYNC and two German research institutes). Here’s why they are interesting: Read the rest of this entry »
Share bike commute: only 62% success
July 6, 2016Geographers have long investigated commuting and transportation. While that isn’t my academic speciality, every commuter in the world probably has some comments and reflections on the “geographies of mobility” (to use current jargon). Here are my reflections on the city of Lausanne’s shared-bike program, initially sponsored by the two universities EPFL and UNIL.
Manifest for an environmental geography (in France)
May 20, 2016In September 2010, fifteen prominent senior French geographers, under the auspices of the Société de Géographie, held a one-day colloquium entitled Le ciel ne va pas nous tomber sur la tête (The sky will not fall on our heads). The participants critiqued the “prevailing obfuscation, radical environmentalism, de-growth, denial of science, and faith in humanity”[1]. While many geographers can sympathise with critiques of simplified or overly catastrophic environmental narratives, as well as with critiques of bad science, this book went much further. It verged on climate change denial and was underlain by the assumption that we need no changes to our lifestyles.[2] In direct response, two younger geographers named Denis Chartier and Estienne Rodary organized a conference entitled Géographie, Écologie, Politique: un climat de changement at the Université d’Orléans in September 2012 (see my blog entry at the time). Participants in Orléans expressed frustration with what they saw as the dominant school, the old guard. This conference also led to an edited volume, titled Manifeste pour une géographie environnementale, finally published a few months ago – the reason for this blog entry.
Living with invasive plants in the Anthropocene
January 6, 2016What does it mean to live with bioinvasions? Low-wage labourers donning chemical suits and goggles to spray herbicides in tropical heat? Exurban homeowners cutting back an invasive vine near their back porch, but letting it run wild at the other side of the property? State environmental managers making difficult choices about what weeds to spend money on? In a recent collective paper inspired by the Wollongong Weeds Workshop (Head et al. 2015, see below), we seek to draw attention to the practical, lived side of managing weeds.

Poisoned Acacia nilotica in the Mitchell grasslands, northwest Queensland
The paper is organised around five themes that arise from managers’ reflections on their work. It identifies tensions between the ideals arising out of invasion biology, resulting regulatory and policy frameworks, and practical on-the-ground experience. Read the rest of this entry »