Landscapes - People - Global change

Category: Infrastructure (Page 1 of 15)

New paper: Are apartment residents likely to be affected by changes to coastal infrastructure?

Venn diagram to show intersections of benefit from dykeland, dyke and tidal wetland.

Dykes (often used as trails) seem to be the vector for benefits apartment residents receive.

Back when we surveyed residents around the Minas Basin for Sam Howard’s MES thesis, the sampling frame we used limited us to those living in standalone houses. Subsequent discussions led us to use a different approach to try to reach those using in multi-unit dwellings such as apartments. Today, the paper from that follow-up work is available open access in Facets, Apartment residents are important stakeholders in managed dyke realignment around the Bay of Fundy: landscape benefits, preferences, and complementarity. Thanks to Sam, postdocs Brooke McWherter and Lara Cornejo, and MI/MREM Alex Legault, we found an interesting story in this side-of-the-desk work. We couldn’t find any work on ecosystem services involving rural apartment residents, so feel that this fills an important gap, especially as housing challenges mean even rural coasts vulnerable to climate change are densifying. Here is a plain-language summary:

Apartments and dykeland trails near Wolfville

It is not very common for those who live in apartment buildings to be targeted in research or consultation about landscape change. Some of the reasons for that omission are practical, such as building security. But especially since COVID lockdown, where those in houses with yards had such different opportunities than those in apartments, we need to pay special attention to apartment residents when making policy decisions. Decisions about how to adapt to climate change can affect apartment residents, too. We surveyed apartment residents around the Minas Basin of the Bay of Fundy, in Nova Scotia, Canada, to see how they used some of the coastal landscapes facing change: agricultural dykes and dykelands, and tidal wetlands. Because of higher seas and bigger storms, some of the dykes may need to be rebuilt further inland, meaning less dykeland and more tidal wetland.

We heard from 2% (168) of apartment residents who received the survey. Many of the respondents were keen and frequent users of the coastal landscapes. All three landscapes were most highly valued for opportunities to enjoy nature. Some agricultural dykes form part of popular public trail systems. The dyke trails often run between agricultural land and tidal wetland, so those enjoying the trails see nature attracted to both at the same time. The three landscapes were also reported by apartment residents as providing opportunities to reflect and feel at home. Some other benefits were associated only with one or two landscapes. For instance, the dykes were associated with safety, because of their role holding back seawater. The dykes and dykelands were associated with being active and social, and the dykes and tidal wetlands were most associated with learning or teaching. It is clear, however, that it is the dyke that enables the benefits from all three by providing an access route.

So when it comes to possible adaptation options, it was not surprising to us that the most preferred option, of the three presented, was building new dykes higher back and restoring wetland in front (something called ‘managed dyke realignment’). That option would likely retain the continuity of dyke that allows public access and keep all three landscapes together, the way respondents like them. That option was more popular than raising the height of dykes where they are, since respondents seemed to understand the engineering viability of this option was likely low, and the costs and risks of dyke breach likely high. One wonders if the higher vantage point gives coastal apartment residents a different perspective on the challenges faced by coastal infrastructure.

When comparing the results of this study with other surveys and studies in the region (one of them with house residents), we concluded that apartment residents are very important to involve in coastal decision-making. This is important in rural areas, where apartments may be seen as less common than in cities but are increasing due to the housing crisis. Apartment residents may rely more than those with private yards upon public coastal spaces for their well-being.

Fundy Monday

The marquee at the Al Whittle Theatre shows Fundy Monday on the bill

This past Monday we culminated the Bay of Fundy Dykeland case study of NSERC ResNet with a big-screen near-full-house showing of our new short documentary, Sea, Soil, and Soul: The Evolving Bay of Fundy Coastline. It was magic to show it at the lovely Al Whittle Theatre, right behind where my own segments were filmed on the Bishop-Beckwith marshland. This ten-minute video was flanked by an optional survey, so we could understand how it was received, and followed by a great conversation chaired by ResNet principal investigator and documentary producer, Elena Bennett. The star of the movie and the show was Don Webster, a dykeland farmer in the Belcher Street area who sold land so that a section of his marsh could be restored to tidal wetland. Danika van Proosdij of Saint Mary’s and TransCoastal Adaptations, Tony Bowron of CBWES and TransCoastal, and I were also panelists. It was wonderful to see ResNet student alum and partners showing up to celebrate with us, and to have such an engaged group to ask questions. The audience showed such clear love and concern for their dykeland landscapes, and had a strong appetite for information to help them understand its future. Thanks to postdoc emcee Elson Galang, MES assistant Bethany Poltl, the folks from TransCoastal, from the Apple Blossom Festival (we were its final event) and from the theatre itself, for the successful event. Action shots to follow soon.

Late addition: Thanks to Wendy Elliott for the great review in the Annapolis Valley Register: Documentary on evolving Bay of Fundy coastline a fascinating watch. https://www.saltwire.com/nova-scotia/annapolis-valley/wendy-elliott-documentary-on-evolving-bay-of-fundy-coastline-a-fascinating-watch

Ive Velikova at TransCoastal Adaptations also wrote a nice blog post about it.

Nearly a full house at the Al Whittle Theatre for Fundy Monday

New paper on social media data access for the public good

Congratulations to Yan Chen, whose first PhD paper is published (open access) today in Frontiers in Big Data, titled From theory to practice: Insights and hurdles in collecting social media data for social science research. She started her PhD in 2018, the year of the Cambridge Analytica scandal, and this paper is a perspective piece that documents her challenges of data access for her PhD, which took her through eight different options before finding one that worked (enough). This was in stark contrast to Instagram data collection for her Master’s several years before, for which she used the academic tool Netlytic. The closing of APIs starting in 2018 did not make people safer, it just concentrated the data in a smaller set of (commercial) hands. This paper advocates for a stronger role for government and other regulators in ensuring access to social media for public good research.

New paper: social media methods for SIA

Synthesis figure in the new Current Sociology paper showing sample workflows within a range of possibilities.

This week a new open access paper came out in a special issue (monograph) of Current Sociology about Social Impact Assessment. The special issue was led by Guadalupe Ortiz and Antonio Aledo, and their introductory essay is worth a read, as is Frank Vanclay’s epilogue, reflecting on 50 years of SIA and asking “is it still fit for purpose?”. Our offering, Social media and social impact assessment: Evolving methods in a shifting context, reflects on a decade of research using mostly Instagram to understand the social impacts of developments such as hydroelectricity, wind energy and coastal dyke realignment. The above demonstrates the current state of the art in terms of workflows, and shows how several of our studies have navigated those options. The paper also talks about the challenges, practical and ethical, of using social media datasets, and calls for government support in securing ongoing access for the purposes of public good research, a topic also recently argued by Ethan Zuckerman in Prospect Magazine. Most of the work synthesized in this paper has been published elsewhere, except the brilliant work that Mehrnoosh Mohammadi did on developing a collage approach to communicating common features in social media images to protect both copyright and privacy concerns (see below). This is a method we advocated back in 2017 and it is wonderful to see it in action.

A collage by Mehrnoosh Mohammadi of 16 photos captured in NS vineyards and posted on Instagram, showing seasonal change from left to right.

New culturomics paper mapping CES using Instagram

Figure 2 process flowchart of the new Zhao et al. paper in Marine Policy

Another nice lab output this week in Marine Policy led by Qiqi Zhao, a China Scholarship Council visiting PhD student in my lab last year, including a bunch of other lab-affiliated students as co-authors: Modelling cultural ecosystem services in agricultural dykelands and tidal wetlands to inform coastal infrastructure decisions: a social media data approach. It is a bit of a companion piece to the Chen et al (2020) piece in Ocean and Coastal Management, as it uses the same Instagram dataset collected for every dykeland area in Nova Scotia back in 2018, but in a very different way. Chen et al. took a very qualitative ‘small data’ approach to the dataset, analyzing the photographs (and accounts) only of posts that included the words dyke*/dike*/wetland/marsh in the captions. Zhao et al. used a ‘big data’ text mining approach, extracting and associating bi-grams (two-word strings) from geolocated post captions to particular cultural ecosystem services (CES), modelling those CES using SolVES and comparing (as with Chen et al.) dykeland and wetland services. Whereas Chen et al. only found direct mentions of freshwater marshes (specifically Miner’s Marsh), in Zhao et al. we leveraged the coordinates to locate those geolocated to tidal wetland sites.  This will help us better understand the tradeoffs associated with climate change-driven adaptations of the dykeland system in the Bay of Fundy, the focus of NSERC ResNet Landscape 1.

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