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Robots use fear to fight invasive fish

A team of biologists and engineers created a robotic fish that scares mosquitofish away, altering its behavior and physiology. The study found that the mosquitofish showed fearful behaviors, weight loss, and reduced fertility when confronted with the robot.

SourceCell Press·JournaliScience·TypeExperimental study·DateDec 16, 2021

Global loss of floristic uniqueness

Researchers found that global databases revealed a net loss of regional floristic uniqueness due to the spread of alien plants. The study highlighted biogeographic factors like climate distance and anthropogenic factors such as shared administrative history contributing to homogenization of regional floras.

SourceUniversity of Konstanz·JournalNature Communications·DateDec 15, 2021

Night lights: New global atlas maps out artificial light at night under the sea

A new global atlas reveals that up to 1.9 million km2 of the world's coastal waters are affected by artificial light at night, with significant impacts on marine organisms. The study uses a novel metric to determine the depth of light penetration and highlights the need for further research into the effects of ALAN pollution.

SourceUniversity of Plymouth·JournalElementa Science of the Anthropocene·TypeExperimental study·DateDec 14, 2021

Burrowing snakes have far worse eyesight than their ancestors

Scientists found that seven genes associated with bright-light vision are absent in burrowing snakes, demonstrating extensive vision gene loss over millions of years. This challenges the hypothesis that all modern snakes evolved from extreme burrowers, suggesting a different evolutionary path for these subterranean snakes.

SourceUniversity of Plymouth·JournalGenome Biology and Evolution·TypeExperimental study·DateDec 9, 2021

Tropical forests can recover quickly on reclaimed agricultural lands

Tropical forests worldwide have disappeared rapidly due to deforestation. However, they can recover quickly on abandoned lands, with key forest functions rebounding within a decade. The study found that tropical forests can regain 78% of their old-growth values in just 20 years and near-total recovery occurs in less than 10 years.

Digitizing the Natural History Museum London's entire collection could contribute over £2 billion to the global economy

The Natural History Museum's digital collection has been downloaded over 28 billion times, contributing to advancements in food security, biodiversity conservation and medicine discovery. The museum's digitisation efforts are expected to have a tenfold return on investment, with benefits exceeding £2 billion over 30 years.

SourcePensoft Publishers·JournalResearch Ideas and Outcomes·DateDec 8, 2021

How corals react to climate change

Researchers at Ruhr-University Bochum study coral reefs' reaction to climate change, discovering polyp bailout as a potential survival mechanism. The study reveals different species react with varying intensity to environmental stressors, and that individual polyps can survive and grow in new locations.

SourceRuhr-University Bochum·JournalCoral Reefs·DateNov 12, 2021

Expert comment: How studying fossilized parasites can contribute to knowledge of infectious diseases

Researchers have developed a database of parasite-host interactions among ancient ocean animals, shedding light on the evolution of biodiversity and the impact of parasitism on ecosystems. The study suggests that parasites can positively stabilize coastal ecosystems, making them more stable despite individual harm to hosts.

SourceUniversity of Missouri-Columbia·JournalPhilosophical Transactions of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateNov 8, 2021

Female finches are picky but pragmatic when choosing a mate

A study found that female zebra finches are choosy but flexible in their mating preferences, allowing them to avoid fitness costs. The researchers discovered that these 'wallflowers' can still produce successful fledglings by sneaking eggs into other birds' nests.

SourcePLOS·JournalPLOS Biology·TypeExperimental study·DateNov 4, 2021

Movement of plankton between tropical marine ecosystems drives “sweet spots” for fishing

A new analysis reveals that plankton-eating fish play a central role in driving local spikes of extreme biological productivity in tropical coral reefs. These 'sweet spots' concentrate abundant fish production, making them optimal for fishing. The study's findings hold significance for the future of tropical reef fisheries as coral ree...

SourcePLOS·JournalPLOS Biology·TypeObservational study·DateNov 2, 2021

This squirrel watches its neighbor's back

Researchers found that Barbary ground squirrels in the Canary Islands rely on synchronized vigilance as their main defense mechanism against predators. They spend a significant amount of time watching each other and scanning their surroundings to detect threats.

SourceUniversity of Cincinnati·JournalBehavioral Ecology and Sociobiology·TypeObservational study·DateOct 29, 2021

After California’s 3rd-largest wildfire, deer returned home while trees were ‘still smoldering’

Researchers tracked black-tailed deer before, during, and after the Mendocino Complex Fire, finding that all 18 deer survived. Despite burned areas with no vegetation, most deer returned home within hours, potentially due to their loyalty to habitat. However, some deer's body condition declined as they expanded their range.

SourceUniversity of Washington·JournalEcology and Evolution·TypeObservational study·DateOct 28, 2021

Warmer water, less nutrition

Researchers found that warmer seawater temperatures decreased the nutritional content of giant kelp, a vital food source for many marine species. This decline could lead to population declines among consumers of kelp, including fish, invertebrates, and shorebirds, with far-reaching effects on entire ecosystems.

Tiny microscopic hunters could be a crystal ball for climate change

Researchers at Duke University used mini ecosystems to test the effects of warming on bacteria-eating protists. They found that simple measurements of species traits could predict their response to temperature, shedding light on how climate change will alter microbial communities and influence the pace of global warming.

SourceDuke University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 25, 2021

UC Santa Barbara Researchers investigate how herbivore activity around water affects plant communities

In a two-year study, UC Santa Barbara researchers found that herbivore activity around water sources in arid locations can either increase or decrease plant diversity, depending on environmental conditions. The findings suggest that plant communities exist along a spectrum based on environmental conditions.

SourceUniversity of California - Santa Barbara·JournalEcological Applications·DateOct 18, 2021

Snakes diversified explosively after the dinosaurs were wiped out

A study found that snakes rapidly diversified their diets following the K-Pg mass extinction event, incorporating birds, fish, and small mammals into their diet. This diversification was triggered by ecological opportunities presented by the extinction, with some lineages experiencing further bursts of adaptive evolution.

SourcePLOS·JournalPLOS Biology·TypeSystematic review·DateOct 14, 2021

An unrecognized role for predators: Digging sea otters promote eelgrass genetic diversity

A new study reveals that sea otter predation promotes eelgrass genetic diversity through physical disturbance. The longer otters are present in an area, the more genetically diverse the eelgrass communities become. This underappreciated process highlights the importance of considering indirect effects of predators on ecosystems.

Islands are cauldrons of evolution

Research by Washington University in St. Louis explores the collision of island and mainland adaptive radiations in neotropical anoles, finding that island species can diversify greatly on the mainland. Contrary to traditional thinking, islands are not evolutionary dead ends but rather cauldrons of innovation and diversification.

SourceWashington University in St. Louis·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 12, 2021

Non-English-language science could help save biodiversity

A recent study published in PLOS Biology found that science written in languages other than English may hold untapped information crucial to the conservation of global biodiversity. The research analyzed over 400,000 peer-reviewed papers and identified 1,234 studies providing scientific knowledge on saving species and ecosystems.

SourcePLOS·JournalPLOS Biology·TypeComputational simulation/modeling·DateOct 7, 2021

COVID-19 and plastics: How the pandemic highlights the need for sustainable waste disposal

The COVID-19 pandemic has exacerbated plastic pollution, with global waste generation increasing by twice the amount in 2020 compared to 2019. To address this issue, researchers advocate for a transition to novel sustainable practices and technologies, including biodegradable plastics and efficient recycling processes.

SourceCactus Communications·JournalNature Reviews Earth & Environment·TypeCommentary/editorial·DateOct 7, 2021