Wednesday, June 18, 2025

 

Long-term study reveals Native seeding controls annual, but not perennial, invasive plants in sand grassland restoration



Hun-Ren Ökológiai Kutatóközpont
Monitoring arrangement for estimating invasive propagule pressure 

image: 

Monitoring arrangement for estimating invasive propagule pressure with transect method. Established eight 100-meter-long transects towards the eight cardinal directions and recorded the number of shoots of each invasive species in 1 m x 1 m adjacent plots along each transect.

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Credit: Photo: Melinda Halassy





The HUN-REN, CER-IEB Restoration Ecology Research Group monitored vegetation changes over 17-25 years across eight restoration sites, subject to different restoration interventions: seeding with native species, mowing, and carbon amendment. The goal was to understand how these treatments influence the abundance of annual and perennial invasive alien plants over time, and how abundance of invasive species in a 100 m buffer affects invasion dynamics at restoration sites.

The results were promising for annual invaders. In most cases, their cover declined over time, especially when native seeding was applied. Seeding proved to be the most effective treatment in suppressing these fast-spreading, short-lived species. However, the picture was different for perennial invaders. These species continued to increase in cover over the decades, regardless of which restoration techniques were applied or the abundance of invasive species within a 100-meter radius of the sites.

Surprisingly, the study found that immediate local invasion pressure had little explanatory power—suggesting that broader landscape-scale processes and long-distance dispersal may play a more important role in shaping invasion outcomes. Mowing, although often used in restoration to control shrub, weeds or invasive species, was found to potentially facilitate the establishment of invasives by opening "colonisation windows" for opportunistic species already present in the landscape.

The authors emphasize that current restoration approaches are not enough to address the long-term threat posed by perennial invaders. Once established, these species are notoriously difficult to eradicate, and their increasing dominance can undermine biodiversity and the success of ecological restoration. This highlights an urgent need for more proactive, species-specific strategies that address the life history traits and dispersal mechanisms of problematic perennials.

Ultimately, the study calls for a shift in restoration planning—from a site-based perspective to a more integrated, landscape-level approach. Effective grassland restoration must consider not only what happens within the target area, but also the broader ecological context: the availability of native and invasive propagules, the disturbance regime, and the long-term resilience of native communities.


Sand grassland patch restored by seeding four native species: Festuca vaginata, Koeleria glauca, Euphorbia segueriana and Dianthus serotinus.

Credit

Photo: Melinda Halassy

 

Report outlines blueprint to grow Australia’s bioeconomy



Queensland University of Technology
Growing Australia's Bioeconomy 

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from left: Madeline Smith, Professor Ian O'Hara, and Dr Jerome Ramirez

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Credit: QUT





A QUT report published today into Australia’s bioeconomy has called for a national strategy and outlined the five key steps needed to grow a sustainable economic future. 

The report, published by researchers from QUT and the ARC Centre of Excellence in Synthetic Biology Madeline SmithDr Jerome Ramirez and Professor Ian O’Hara, says “now is the time for Australia to act, or risk losing the ability to compete in this rapidly growing global market”. 

Professor O’Hara said the global bioeconomy, currently valued at US$4 trillion, was predicted by the World Bioeconomy Forum to grow to US$30 trillion by 2040, which would be a third of total global economic value. 

The bioeconomy includes economic activity that uses biological resources, such as plants, animals and organic waste, to produce food, energy and materials in a sustainable way. The bioeconomy has benefits for the economy, environment and society.  

“It is a pivotal moment of economic transformation for Australia, which is driven by the shifting global market, rapid technological advancements and the move towards a low-carbon economy,” Professor O’Hara said. 

Many countries, including most of the G20 economies, have already developed national bioeconomy strategies that are providing a focal point for coordinated government action unlocking corporate investment. 

“Without a unified effort and strategic approach by government, industry and researcher partners, Australia risks losing the opportunity to compete effectively in this market,” Professor O’Hara said. 

“Our world-class research, education and innovation are key strengths that can underpin advancing Australia’s bioeconomy development.”

The report identifies key economic growth opportunities for Australia including biomanufacturing of sustainable products and materials, value-adding to Australia’s primary industries, the development of new foods and feeds and the manufacturing of low carbon liquid fuels and renewable gases. 

“As examples, Australia is at the forefront of developing new food ingredients including proteins produced through precision fermentation and has the potential to lead in the development of sustainable aviation fuels from agricultural industry byproducts,” Professor O’Hara said. 

“Australia has one of the best biomass resources in the world which provides a huge advantage in the development of these industries. By unlocking the value of these resources we can add value to Australian agriculture and grow new biomanufacturing industries across regional areas.” 

Critical to success will be the development of scale-up facilities to better translate research from the laboratory to commercial scale.

As an example, the recently upgraded QUT Mackay Renewable Biocommodities Pilot Plant based in the Greater Whitsundays Region of Queensland is supporting the sugar industry to diversify into a wider range of value-added products, however more focus is needed on this very important aspect of technology scale-up and translation. 

The report makes five key recommendations to advance Australia’s bioeconomy: 

  • Develop a national bioeconomy strategy: Assess capabilities, prioritise growth and identify strategies for market, workforce and regional benefits. 
  • Cultivate world-class, economic and scalable bioeconomy feedstock: Invest in feedstock development and optimise farm-to-market supply chains. 
  • Build infrastructure to scale bioeconomy solutions: Fund pilot and pre-commercial biomanufacturing infrastructure. 
  • Grow bioeconomy workforce skills: Expand education and training programs with a focus on regional development. 
  • Invest in bioeconomy research, development and translation: Establish large-scale collaborative research programs. 

The report identifies the key opportunities for the Australian bioeconomy to diversify revenue streams within primary industries and agribusinesses through onshore value-adding and developing emerging industries and new markets within a low-carbon future. 

However, there are also barriers and challenges ahead. The report highlights the need for a clear and comprehensive national bioeconomy strategy, reliable and sustainable access to feedstocks, a skilled and adaptable workforce and targeted programs to transfer innovative research to commercial success. 

The Growing Australia’s Bioeconomy report is available online.  

 

Despite overall progress, low birthweight rates still high in certain Indian states



Uttar Pradesh, Bihar, Maharashtra, West Bengal account for almost half of all such births





BMJ Group





Despite overall progress in bringing down low birthweight numbers across India over the past 30 years, rates remain stubbornly high in certain states, with Uttar Pradesh, Bihar, Maharashtra, and West Bengal, accounting for almost half of all such births, finds research published in the open access journal BMJ Global Health.

Low birthweight is important, because it often signals underlying maternal health issues and poor nutrition as well as the child’s future cognitive development and susceptibility to chronic conditions in later life, note the researchers.

While some states have made rapid progress in bringing down the prevalence of low birthweight, others have found it more difficult, they add.

To try and build an accurate picture of progress across the country over the past 30 years, the researchers drew on data for women and girls aged 13 or 15 to 49 in five waves of the nationally representative National Family Health Survey spanning the period 1992–3 to 2019–21. Low birthweight was defined as less than 2500 g.

Of the total 626,087 live births during the study period, 165,073 (26.5%) newborns weren’t weighed and the information was missing for 20,814 (just over 3%); and 440,200 (just over 70%) were weighed. The size of 614,428 (98%) was subjectively assessed by the mother.

The number of recorded births rose from 48,959 in 1993 to 232,920 in 2021. And the proportion of these babies who were weighed increased over time, resulting in 7,992 being included in the analysis in 1993 (16%) to 209,266 in 2021 (90%). 

The state-level average prevalence of low birthweight fell across the 5 surveys from 25% in 1993 and 1999; to 20% in 2006; 17% in 2016; and 16% in 2021. And the overall prevalence of low birthweight across India fell by 8 percentage points from 26% in 1993 to 18% in 2021. 

The greatest prevalence of low birthweight in 1993 was observed in Rajasthan (48%) and Chhattisgarh (42%) while the lowest was observed in Mizoram (6%) and Nagaland (11%). 

In 2021, the greatest prevalence was observed in Punjab (22%) and the union territory of Delhi (22%) while the lowest prevalence was observed in Mizoram (4%), Nagaland (5%), and Manipur (7%). 

The 2019–21 survey suggests that there were 4.2 million low birthweight babies in a single year in India. Just four states—Uttar Pradesh (858,000), Bihar (430,000), Maharashtra (399,000, and West Bengal (318,000)—accounted for almost half (47%) of all these births. 

The figures suggest a degree of convergence, where states with greater prevalence in 1992–93 experienced faster falls.

The 2021 survey also indicated that in a single year 2.5 million children were born smaller than average size, as assessed by their mothers. 

The largest number were born in the same four states as those with a high prevalence of low birthweight: Uttar Pradesh (462,000); Bihar (318,000); Maharashtra (261,000); and West Bengal (208,000), accounting for 50% of such births.

For both low birthweight and smaller than average size babies, the 2021 survey showed that these children were considerably more likely to be born to women with little or no formal education and from the poorest households.

“Low birth weight is likely to be more prevalent among non-weighed children since weighing correlates strongly with healthcare infrastructure and being born in a health facility. Also, low socioeconomic status is linked to both lack of access to healthcare and low birth weight,” explain the researchers.

“The insights from data spanning nearly three decades shed light on both promising progress and enduring challenges. Our results point to a general decline in the prevalence of low birth weight and convergence between states over time,” they suggest. 

“However, the levels and specific numbers should be interpreted with caution due to data quality issues, particularly low levels of recorded birthweight in the older surveys,” they caution. 

They conclude: “Despite the overall progress, the persistence of high prevalence of low birth weight in certain states highlights the need for ongoing efforts to address maternal and neonatal health disparities. Despite improvements, data collection at healthcare facilities must also be further enhanced, to provide quality data for decision making across India.”

 

In search of a way to improve humans’ faulty memories and bad habits



In a new paper, Allison Harvey, a UC Berkeley psychology professor, says lessons from science can help everyone instill good habits — and even lead to more effective patient treatments.




University of California - Berkeley





Allison Harvey knew she’d have to study hard when she enrolled in an 11-week course on parenting techniques earlier this year. A UC Berkeley professor of psychology who researches memory, habits and sleep, Harvey printed her notes and meticulously completed each week’s homework. She engaged with the instructors, who were also well-respected clinical psychologists. And she was far more engaged than her classmates, including her husband. 

Yet, when the class ended, Harvey was confronted with a familiar reality: Despite studying hard, she’d forgotten many of the lessons she was supposed to have learned and put into practice.

“I was far short of where you’d want a patient to be at the end of 11 sessions,” she said. 

Frustrating as it was, Harvey said her experience was a personal window into the shortcomings of what are called evidence-based psychological treatments. These treatments, which include various forms of counseling, trauma interventions and cognitive behavioral therapy, are rooted in science and used widely to treat an array of mental health challenges. 

But as Harvey describes in a recent paper in the journal Behaviour Research and Therapy, these treatments often fall short because of humans’ flawed memories and difficulties creating new, healthier habits. Her research explores how subtle treatment changes could significantly improve patient outcomes — both mentally and physically. 

Memory gaps in health care

First, change requires acknowledging the profound gap between what’s discussed in a clinical setting and what people actually remember after they leave. Doctors may have said the right thing, but there’s often a lack of follow-up to ensure the patient retains the information. People also have notoriously terrible memories, Harvey said, pointing to research showing patients only retain about 30% of information shared in a session. 

“I don’t think us humans realize how fallible our memories are,” Harvey said. “We’ve got decades of psychological research showing that we fail to encode memories accurately. We fail to store them accurately. And we fail to retrieve them accurately.”

That memory gap can undermine even the best-laid treatment plans. If a patient forgets the majority of what was discussed, they’re less likely to see positive, lasting benefits. 

Habits take time — and effort

Memory is only part of the puzzle. Additionally, Harvey said, we must confront how difficult it is to build new behaviors into routines — a process that social and health psychologists say can take between 18 days and 36 weeks. 

There are science-backed strategies to help, like pairing new actions with existing routines or activities. But without explicit discussion in clinical settings about how to make new skills habitual, patients may struggle to maintain progress after treatment ends.

In other words, Harvey said, existing treatments too often lead patients to forget what they’re supposed to do, and those who know what they should do often fail to regularly do it. 

“We’ve got a mental health crisis. We’ve got treatments that work. But those treatments need to be improved to get people much better,” she said. “That, I think, is a real scientific challenge.”

Ongoing sleep research seeking solutions

Finding ways to address the memory and habit formation elements of health interventions doesn’t need to be overly complicated. Sometimes it’s as simple as a carefully worded text message. 

Harvey’s ongoing sleep research, backed by the National Institutes of Health, focuses on memory and habit change that can lead to better sleep. In one study, her team sends participants text messages with cues, reminders and follow-ups to understand what drives habit change and, ultimately, better health. “At 10 p.m. I will dim the lights and put my phone down,” said one automated message, setting the goals. A morning message asks if the goals were met. If so, participants were rewarded with a fun fact: “Did you know dolphins and whales sleep with only half of their brain at a time so they can still swim during sleep?” If not, they were encouraged to try again the next night. 

Early results are encouraging, she said, adding that it would be important to also study how similar interventions could scale into mental and physical health settings.  

“We can come up with augmentations that could be applied before a session, in the middle of a session or at the end of a session that are not costly,” Harvey said. “They don’t have side effects, but they’re effective at improving outcomes.”

Behind those improvements is a commitment to basic science, she said. Her work on memory is based on cognitive science and education research, and habit formation is deeply tied to social psychology. Breaking down research silos, like she’s attempting to do with sleep research, is a pathway toward improving patient outcomes more broadly. 

“Unless we’re paying attention to and adhering to what’s being found in those other fields, we just won’t be effective or as effective,” she said. “It’s like a pipeline of science at every step.”

As for the parenting class she took, Harvey said there were valuable lessons. But many of them faded from memory and never became second nature.

“It’s sort of funny though, isn’t it? Despite all that studiousness, only a few months later, I’m struggling to recall. This, I guess, is the whole point.”

 

Train teachers on how to get parents involved in children’s learning, say researchers



Fewer than three in 10 teachers reported their initial training covered the basics of what parental engagement is or why it is important




Taylor & Francis Group




Over half of primary and secondary school teachers in England have not been trained in how to support parents’ involvement in children’s learning and education at home and at school.  

 

That’s according to research published today in the peer-reviewed journal Educational Review, which is a first study of its kind based on a survey of more than 1,700 teachers reveals concerning gaps in skills. 

 

Led by academics from the University of Warwick and UCL, the paper shows teachers’ essential pre-qualification training fails to prepare teachers to build relationships with parents or to support families with activities such as reading to children, accessing learning resources and attending school events. 

 

Previous research has identified a strong link between parental engagement and children’s success at school. The more interest a parent takes in their child’s learning outside school, the better that pupil’s behaviour, attendance and overall motivation to do well in school. 

 

Teachers have an obligation to know how to work with all parents. But the authors of this new analysis say participants reported they were least confident engaging parents who faced additional barriers or disadvantages. 

 

They are calling on policymakers to ensure teachers are better trained to support parents to engage with children’s learning effectively, especially beyond the classroom. 

 

“It’s clear there’s still work to do in ensuring that teachers are fully equipped with the knowledge and skills required to facilitate effective parental engagement,” says lead author Cat Jones, an ESRC-funded PhD student at the University of Warwick. 

 

“The results reveal important training gaps. Most teachers reported receiving no training on the types of parental engagement that are most effective. Or how to identify and remove barriers to parental engagement.” 

 

Co-author Professor Olympia Palikara, who is also based in the Education Studies department at Warwick, adds: “Gaps in teachers’ parental engagement knowledge and skills suggest a continuing preoccupation with parents’ involvement with school-based activities. This is at the expense of more effective parental engagement with learning beyond school.”  

 

Taking an interest in what children are learning, working in partnership with schools, and providing learning opportunities are among many examples of how mothers and fathers can engage with education in a positive way.  

 

There is some evidence to suggest parental involvement can have a bigger effect on pupil outcomes than socioeconomic status. In the UK, successive education ministers have been actively involved in supporting schools in engaging with parents.  

 

However, not all engagement strategies have proven to be effective in improving outcomes for pupils. For example, trying to get parents involved in homework has mixed results. The researchers therefore argue that teachers need to understand which strategies are likely to be effective. As such, many researchers have called for parental engagement to be a key element of teacher education, across Europe, the US, and Australia.  

 

Data for this study was based on 1,782 qualified primary and secondary school teachers in England of various ages and years teaching experience.  

 

An online survey was emailed to all schools in England to collect information on an anonymous basis between June 2023 and March 2024. The purpose was to investigate the current state of teachers’ parental engagement training, knowledge and skills in England. Additionally, the authors set out to examine whether this relates to teacher and school characteristics.  

 

Participants were presented with a list of parental engagement topics. They were asked to indicate whether they had encountered them during their initial teacher education and ongoing training. 

 

An open-ended question asked teachers to define parental engagement and to provide examples of strong parental engagement.  

 

They were also asked to rate their confidence in relation to skills such as engaging with parents who speak other languages, with those who have had negative school experiences, and with those experiencing poverty. 

 

The researchers also gathered other information such as how many hours the teachers worked, if they were parents themselves, and what percentage of their pupils were eligible for free school meals. 

 

Results showed that fewer than 3 in 10 (29%) participants reported that their initial teacher education (ITE) had covered the basics of what parental engagement is or why it is important.  

 

Only 13% said their ITE covered which parental engagement activities are effective, and less than 7% had covered parental engagement in the context of poverty, language differences, cultural differences, or prior negative school experiences. 

 

The study did identify what characteristics of teachers predicted higher self-reported skills for getting parents to engage effectively. Those who were more experienced, had leadership roles, and had children of their own were more confident in with parental engagement.  

 

Primary school teachers generally scored more highly than secondary teachers. The authors say this is unsurprising because primary school teachers tend to work with fewer pupils and generally have more opportunities to interact directly with parents. 

 

They are calling for further analysis into the effects of a teacher’s training, workload and their job role to predict teachers’ parental engagement skills. 

 

“Parental engagement with their children’s learning has such a powerful effect on children’s outcomes. It is therefore essential that teachers have both the time and the training to be able to build relationships with parents and to support all families to access resources outside school,” adds Cat, who is also an experienced primary school teacher and school governor. 

 

“Importantly, our findings provide specific directions on how to ensure that teachers have the knowledge and skills to facilitate effective parental engagement moving forward,” concludes co-author Dr Vassilis Sideropoulos, a senior research specialist at the Institute of Education at UCL.
 

A limitation of the paper is that the authors had to create their own measures of teachers’ parental engagement knowledge and skills. Going forwards, studies which validate these measurement tools, the authors state, “would support more large-scale research and lay the ground work for evaluating parental engagement training interventions in the future”.