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Environmental assessments should factor in ecological connectivity, say Concordia researchers

There is a growing call among researchers, funding bodies and developers to integrate considerations of ecological connectivity in environmental assessments…

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There is a growing call among researchers, funding bodies and developers to integrate considerations of ecological connectivity in environmental assessments (EAs) of proposed development projects. This refers to the degree to which a natural landscape remains unbroken by a development project, be it a road, mine, transmission line or hydro dam. These projects have the potential to impede wildlife movement across altered landscapes, with important consequences for migration, genetic diversity, population abundance, climate resilience, disease resistance and more.

Credit: Jochen Jaeger

There is a growing call among researchers, funding bodies and developers to integrate considerations of ecological connectivity in environmental assessments (EAs) of proposed development projects. This refers to the degree to which a natural landscape remains unbroken by a development project, be it a road, mine, transmission line or hydro dam. These projects have the potential to impede wildlife movement across altered landscapes, with important consequences for migration, genetic diversity, population abundance, climate resilience, disease resistance and more.

In a series of papers published in a special issue of the journal Impact Assessment and Project Appraisal led by two Concordia researchers and Spanish researcher Aurora Torres from Alicante, the authors look at how ecological connectivity can become central to EAs. Their concluding paper looks at five case studies that demonstrate how, despite major differences in the characteristics of the projects, the issue of connectivity can be successfully included at the EA stage.

“We wanted to take a closer look at the details and success factors in these different case studies to see what we can learn for new projects, including Quebec,” says Jochen Jaeger, an associate professor in the Department of Geography, Planning and Environment in the Faculty of Arts and Science and the paper’s supervising author. The case study method is helpful, he says, because there are few detailed guidelines practitioners can use to help them evaluate a specific project’s effects on connectivity.

For example, most roads in Quebec have been built without any consideration of their effects on ecological connectivity, such as Autoroutes 15 and 10. These major mistakes should be corrected by adding wildlife passages, and the Initiative québécoise Corridors écologiques, established by the Nature Conservancy of Canada, has pushed for the consideration of connectivity in land-use decisions for years. However, the Quebec Transport Ministry usually refuses to add any mitigation measures to existing roads. As a result, Quebec still does not have any wildlife overpasses even today. Therefore, it is very important that connectivity will be adequately considered in the EAs for new roads and for the widening of existing roads from two to four lanes, and that sufficient mitigation measures be installed at least in these cases.

Finding common features

The study looked at five projects in four countries: the 850-kilometre natural gas Westcoast Connector Gas Transmission pipeline project in northeast British Columbia; Parks Canada’s strategic EAs of its park management plans; the expansion of a third runway at Heathrow Airport in London, United Kingdom; the expansion of the Malmbanan railway in northern Sweden; and the upgrade of the A4 highway in southern Spain.

Despite the projects’ differences, the researchers found commonalities of challenges, lessons learnt and important future research directions.

The 15 challenges encountered touched on the limited awareness and understanding of the importance of connectivity among EA practitioners; technical problems such as a lack of quality data and difficulty in transferring knowledge between scientists and practitioners; and a need for better coordination between authorities across jurisdictions.

As for the 19 lessons learnt, the case studies show that connectivity assessments should be based on scientific knowledge such as ecological characteristics and the need to consider multiple scales of analysis. The researchers also note that thinking about connectivity early in the EA benefits the process and reveals potential threats. The case studies demonstrate that various pathways can lead to successful inclusion of connectivity, not just one.  

Guidance needed

The case studies all reveal the need for guidance on when, why and how to conduct connectivity analyses and which techniques or tools should be used. They also identify the need for monitoring to see if the projects’ restoration and conservation efforts attain their goals.

The researchers hope that the special issue will lead to legislation that requires connectivity considerations become mandatory in EAs, and that governments enact regulatory frameworks to maintain appropriate standards and enforcement measures.

“This was a passion project from the very beginning,” says lead author Charla Patterson, who recently completed her Master of Environmental Assessment at Concordia. 

“After presenting our research as part of an online workshop, the original core purpose of improving the consideration of ecological connectivity in EA became the foundation of a working group. From there, things evolved organically. It was truly humbling to work alongside so many talented and brilliant people over the course of this project. These are people from multiple countries, working across different sectors in EA who volunteered their time over the last couple of years because they believe in the importance of this work. It was not always easy, but it was definitely worth it.

“It was also very encouraging to see that professionals across different sectors recognized the importance of connectivity and agreed that it should be included in EA.”  

The Center for Large Landscape Conservation (Montana) provided funding for this study.

Read the cited paper: “Pathways for improving the consideration of ecological connectivity in environmental assessment: lessons from five case studies.”

Read the editorial of the special issue about ecological connectivity: “Advancing the consideration of ecological connectivity in environmental assessment: Synthesis and next steps forward.” 


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Guerilla gardening: how you can make your local area greener without getting into trouble

Many people are gardening on land that is not theirs – here are some things to consider to avoid getting into trouble.

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What are your rights if you want to become a guerrilla gardener? Goami/Shutterstock

When Richard Reynolds first started gardening around London’s streets, he was so worried he might be arrested that he worked under the cover of darkness. Reynolds was one of the UK’s first modern guerrilla gardeners, a movement that encourages people to nurture and revive land they do not have the legal rights to cultivate.

Gardening, in general, offers physical and mental health benefits. But as many as one in eight British households have no access to a garden or outdoor space of their own.

This issue is particularly pronounced among city dwellers, ethnic minorities and young people. A 2021 survey conducted in England revealed that those aged 16-24 were more than twice as likely to lack access to a garden or allotment compared to those aged over 65.


Quarter life, a series by The Conversation

This article is part of Quarter Life, a series about issues affecting those of us in our twenties and thirties. From the challenges of beginning a career and taking care of our mental health, to the excitement of starting a family, adopting a pet or just making friends as an adult. The articles in this series explore the questions and bring answers as we navigate this turbulent period of life.

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Guerrilla gardening is a particularly good option for these groups of people. It can involve planting herbs or vegetables for a whole community to enjoy, spreading seeds or plants, tidying weeds, or even something as simple as picking up litter.

But if you’re considering becoming a guerilla gardener, it’s important to understand your rights. Could you be arrested for it? And should you wait until after dark?

Can you be prosecuted?

It’s important to remember that much of the unused or abandoned land that is potentially suitable for guerilla gardening in towns and cities throughout the UK is owned by local councils. Common examples of such locations include broken pavements with missing slabs, wasteland and the central areas of roundabouts.

Although much of this land is already open for the public to walk over, actively gardening on it would become an act of trespass.

The law of trespass sounds scary. However, gardening on this land would be a breach of civil law rather than a crime. This means that most guerrilla gardeners are unlikely to receive a fine or a criminal record.

Landowners do have the legal right to use “reasonable force” to remove trespassers from their land. But, fortunately, it seems most councils have ignored guerrilla gardeners, having neither the time, money or inclination to bring legal action against them.

Colchester Council, for example, were unable to track down the identity of the “human shrub”, a mysterious eco-activist who restored the flowers in the city’s abandoned plant containers in 2009. The shrub returned again in 2015 and sent a gift of seeds to a local councillor.

In other areas of the UK, the work of guerilla gardeners has been cautiously welcomed by local councils. In Salford, a city in Greater Manchester, there is a formal requirement to submit an application and obtain permission to grow on vacant spots in the city. But the local authority tends not to interfere with illegal grow sites.

There seems to be an unwritten acceptance that people can garden wherever they want, given the abundance of available space and the lack of active maintenance. This also offers the additional advantage of saving both time and money for the local council.

You should still be careful about where you trespass though. In some areas, guerrilla gardening can lead to unwelcome attention. During the May Day riots of 2000, for example, guerrilla gardeners were accused of planting cannabis seeds in central London’s Parliament Square.

Gardening at night may draw the wrong attention too, particularly if you are carrying gardening tools that might be misunderstood by the police as threatening weapons.

How can you start?

There are many different types of guerrilla gardening that you could get involved in, from planting native plant species that benefit pollinators and other wildlife to tidying derelict land to create safer places for the local community.

One of the simplest forms of guerilla gardening is planting seeds. Some environmental projects circulate “seed bombs” and others use biodegradable “seed balloons” that are filled with helium and deflate after a day, distributing seeds by air.

Whatever you try, as a guerrilla gardener you shouldn’t harm the environment or spoil other people’s enjoyment of the space around you. Remember that weeds and wilderness have an environmental value too. And think carefully about the species you are going to plant so that you can protect local plants and wildlife.

A man dropping a seed bomb on the ground in front of a grey building.
Some projects circulate seed bombs. Miriam Doerr Martin Frommherz/Shutterstock

The most attractive species to humans might not provide the best home or food for wildlife. Some can even outcompete native plants and drive them towards extinction. Planting certain harmful, invasive or poisonous species like ragwort, knotweed or Himalayan balsam is even prohibited by law.

That said, some guerrilla gardeners have used social media to organise “balsam bashing” events, where people come together to pull up this harmful invasive plant.

Guerrilla gardening takes many forms and can bring great benefits for people and the environment. You’re unlikely to be arrested for planting and growing trees and other greenery in public spaces. But remember that these spaces should be shared with everyone, including your local wildlife.

Ben Mayfield does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

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Fractyl Health’s GLP-1 gene therapy spurs 25% weight loss in obese mice, clinical trials slated for 2024

One of the biggest problems facing the burgeoning class of weight loss drugs is that people must take them day after day, week after week. When the injections…

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One of the biggest problems facing the burgeoning class of weight loss drugs is that people must take them day after day, week after week. When the injections of semaglutide — the ingredient in Ozempic and Wegovy — stop coming, so do the benefits. Lost weight is regained.

But researchers at Fractyl Health, a Lexington, MA-based biotech, believe they have a solution to that problem: a one-time gene therapy injected into the pancreas that lets the body make its own GLP-1 agonists in perpetuity.

New data slated to be presented today at a diabetes conference in Germany suggest that obese mice injected with the therapy lost nearly 25% of their body weight after just two weeks, according to a copy of the company’s presentation obtained by Endpoints News.

The results leave many questions unanswered, including how safe and effective the approach will be beyond the first two weeks, although the presentation indicated that such studies are ongoing. Fractyl declined requests for an interview.

The company previously announced plans to begin testing the treatment in people with diabetes and obesity in 2024. It’s a bold step towards moving gene therapy beyond the rare diseases typically pursued by biotech companies.

Randy Seeley

“It’s hard to get people to take injections once a week, and if we can figure out how to do something closer to one and done, that would be a big step for patients,” Randy Seeley, who directs an obesity research center at the University of Michigan School of Medicine, told Endpoints in an interview.

“But how permanent this will be can’t really be answered in a mouse,” he added. Seeley is a consultant to Fractyl, and the company supports research in his lab.

Fractyl was originally just developing the GLP-1 gene therapy for type 2 diabetes. In a diabetic mouse model, human pancreatic islets and human beta cell lines, the treatment significantly enhanced glucose-stimulated insulin secretion, improving blood sugar levels.

GLP-1 needs to act on receptors in the brain for its weight loss effects, and since the therapy is injected directly into the pancreas, the company didn’t expect the diabetic mice would lose weight, Seeley said. But surprisingly, they did, shedding 23% of their mass after four weeks compared to a control group.

Those results spurred the company to test its gene therapy in a diet-induced obesity mouse model. Twenty mice were fed a high fat diet for 25 weeks before half of them got a single injection of the gene therapy while the other half received daily injections of semaglutide.

Both groups of mice began losing weight a day after the injections. Within five days, the mice who got the gene therapy were losing weight faster and shed 24.8% of their body weight after just two weeks, even as they maintained their high fat diet. The mice on semaglutide lost 18.4% of their weight, according to the data presented at the European Association for the Study of Diabetes Scientific Congress.

“The most surprising part of the data is how much weight these animals lose,” Seeley said. “it’s better than semaglutide, and it’s not exactly clear how that occurs.”

Given the uncertain long-term effects of taking GLP-1 drugs for weight loss, a potentially permanent gene therapy approach is sure to raise many questions.

“If you’re taking your once-a-week version, if something goes wrong, we can turn it off and we just take it away,” Seeley said. “But with gene therapy, there’s no way to turn it off. It’s unknown what happens, and so it is going to take both some careful thought.”

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Trans To Be Banned From Female Hospital Wards In UK

Trans To Be Banned From Female Hospital Wards In UK

Authored by Steve Watson via Summit News,

The UK Health Secretary is to issue a proposal…

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Trans To Be Banned From Female Hospital Wards In UK

Authored by Steve Watson via Summit News,

The UK Health Secretary is to issue a proposal to ban trans patients from female hospital wards in the UK, as well as reinstating ‘sex specific’ language in National Health Service materials, according to reports.

The Daily Mail reports that “Steve Barclay will unveil the plans to push back against ‘wokery’ in the health service amid concerns that women’s rights are being sidelined.”

The proposal would see only people of the same biological sex sharing wards, with care coming from doctors and nurses of the same sex, when it comes to intimate health matters.

“We need a common-sense approach to sex and equality issues in the NHS. That is why I am announcing proposals for clearer rights for patients,” Barlcay stated, adding “It is vital that women’s voices are heard in the NHS and the privacy, dignity and safety of all patients are protected.”

He added “And I can confirm that sex-specific language has now been fully restored to online health advice pages about cervical and ovarian cancer and the menopause.”

As we previously highlighted, the word ‘women’ was removed from such materials and replaced with non-gendered terms to be “more inclusive”:

A source close to the Health Secretary told the Telegraph that “The Secretary of State is fed up with this agenda and the damage it’s causing, language like “chestfeeding”, talking about pregnant “people” rather than women. It exasperates the majority of people, and he is determined to take action.”

“He is concerned that women’s voices should be heard on healthcare and that too often wokery and ideological dogma is getting in the way of this,” the source added.

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