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Categories: Biology: Botany, Mathematics: Modeling

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Mathematics: Modeling
Published

What if California didn't close down during the pandemic?      (via sciencedaily.com) 

Using a novel economic-epidemiological model, researchers examine the health and economic impacts that could have occurred if California took a 'business-as-usual' approach to the COVID-19 pandemic.

Biology: Biotechnology Biology: Botany Biology: Microbiology Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature
Published

eDNA holds the key to safeguarding pollinators amid global declines      (via sciencedaily.com) 

Researchers have uncovered new evidence of western pygmy possums interacting with native flowers, providing an eDNA study to simultaneously detect mammal, insect and bird DNA on flowers.

Biology: Botany Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Geoscience: Earth Science Geoscience: Environmental Issues
Published

Plant roots fuel tropical soil animal communities      (via sciencedaily.com) 

A research team has shed new light on the importance of plant roots for below-ground life, particularly in the tropics. Millions of small creatures toiling in a single hectare of soil including earthworms, springtails, mites, insects, and other arthropods are crucial for decomposition and soil health. For a long time, it was believed that leaf litter is the primary resource for these animals. However, this recent study is the first to provide proof that resources derived from plant roots drive soil animal communities in the tropics.

Biology: Botany Biology: Developmental Ecology: Endangered Species Ecology: Nature
Published

An internal thermometer tells the seeds when to germinate      (via sciencedaily.com) 

Germination is a crucial stage in the life of a plant as it will leave the stage of seed resistant to various environmental constraints (climatic conditions, absence of nutritive elements, etc.) to become a seedling much more vulnerable. The survival of the young plant depends on the timing of this transition. It is therefore essential that this stage be finely controlled. Botanists have now discovered the internal thermometer of seeds that can delay or even block germination if temperatures are too high for the future seedling. This work could help optimize plant growth in a context of global warming.

Biology: Biotechnology Biology: Botany Biology: Genetics Biology: Microbiology Ecology: Animals Ecology: Endangered Species Geoscience: Environmental Issues
Published

Wheat's ancient roots of viral resistance uncovered      (via sciencedaily.com) 

The DNA sequence of a gene in wheat responsible for resisting a devastating virus has been discovered, providing vital clues for managing more resistant crops and maintaining a healthy food supply.

Biology: Botany Biology: Marine Biology: Microbiology Ecology: Sea Life Environmental: Water Geoscience: Earth Science Geoscience: Geology
Published

Mineral particles and their role in oxygenating the Earth's atmosphere      (via sciencedaily.com) 

Mineral particles played a key role in raising oxygen levels in the Earth's atmosphere billions of years ago, with major implications for the way intelligent life later evolved, according to new research.

Biology: Botany Ecology: Trees Geoscience: Environmental Issues
Published

A mixture of trees purifies urban air best      (via sciencedaily.com) 

Conifers are generally better than broad-leafed trees at purifying air from pollutants. A new study shows that the best trees for air purification depend on the type of pollutant involved.

Biology: Botany Computer Science: General Ecology: General Ecology: Research Ecology: Trees Environmental: Ecosystems
Published

Phone-based measurements provide fast, accurate information about the health of forests      (via sciencedaily.com) 

Researchers have developed an algorithm that uses computer vision techniques to accurately measure trees almost five times faster than traditional, manual methods.

Mathematics: Modeling
Published

News you can use -- to better predict food crisis outbreaks      (via sciencedaily.com) 

A team of researchers has developed a machine learning model that draws from the contents of news articles to effectively predict locations that face risks of food insecurity. The model, which could be used to help prioritize the allocation of emergency food assistance across vulnerable regions, marks an improvement over existing measurements.

Mathematics: General Mathematics: Modeling
Published

Stick to your lane: Hidden order in chaotic crowds      (via sciencedaily.com) 

Mathematical research brings new understanding of crowd formation and behavior.

Biology: Botany Ecology: Endangered Species Ecology: Nature
Published

Scientists use satellites to track earth 'greening' amid climate change      (via sciencedaily.com) 

Researchers found changes in 'greening,' or the amount of leaves plants are able to produce, will play a significant role in how much carbon dioxide plants capture and store.

Mathematics: General Mathematics: Modeling
Published

Think you're good at math? Study shows it may be because you had equitable math teachers      (via sciencedaily.com) 

A new study finds that high school students identify more with math if they see their math teacher treating everyone in the class equitably, especially in racially diverse schools. While the relationship between teacher equity and math identity was evident across races, there was an interesting exception. Black students, in general, had strong math identities, regardless of their teacher's actions.  Learning about the factors that affect student math identity is important because a student's attitude towards the subject influences the courses that they take as well as their future career selections. This study suggests that teachers may have a larger role to play in helping students develop a positive math identity than previously recognized.

Biology: Botany Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems
Published

Earlier take-off could lead to fewer bumblebees and less pollination      (via sciencedaily.com) 

With the arrival of spring, bumblebee queens take their first wing beat of the season and set out to find new nesting sites. But they are flying earlier in the year, as a result of a warmer climate and a changing agricultural landscape, according to new research.

Biology: Botany Biology: Zoology Ecology: Nature Ecology: Research
Published

Mulching time of forest meadows influences insect diversity      (via sciencedaily.com) 

Researchers have examined how mulching at different times affects insect flower-visitors and larvae.

Biology: Botany Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems
Published

Deforestation in the tropics linked to a reduction in rainfall      (via sciencedaily.com) 

Deforestation is resulting in reduced rainfall across large parts of the tropics, according to new research. People living in tropical forest communities have often complained that the climate gets hotter and drier once trees are cleared but until now, scientists have not been able to identify a clear link between the loss of tree cover and a decline in rainfall.

Biology: Botany Ecology: Nature Ecology: Trees Environmental: Ecosystems Geoscience: Environmental Issues
Published

The counting of nine billion trees could help manage climate credits and nature restoration      (via sciencedaily.com) 

Researchers have developed a method that has now mapped several billion trees and their carbon uptake in Africa's Sahel. In the future, the method could be used to monitor whether climate credit purchases have a positive effect on the number of trees and whether nature restoration is working.

Geoscience: Severe Weather Mathematics: Modeling
Published

How to predict city traffic      (via sciencedaily.com) 

A new machine learning model can predict traffic activity in different zones of cities. To do so, a researcher used data from a main car-sharing company in Italy as a proxy for overall city traffic. Understanding how different urban zones interact can help avoid traffic jams, for example, and enable targeted responses of policy makers -- such as local expansion of public transportation.

Biology: Botany Biology: Evolutionary Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Offbeat: Earth and Climate Offbeat: Plants and Animals
Published

The rediscovery of an ethereal fairy lantern brightly illuminates their mysterious past      (via sciencedaily.com) 

After more than 30 years, botanists have rediscovered Thismia kobensis, a type of mysterious-looking rare plant commonly referred to as 'fairy lanterns'. Thismia kobensis was presumed extinct and the surprise rediscovery of this Japanese variety has illuminated hidden aspects of fairy lanterns that have puzzled and fascinated botanists for centuries.