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University of California - Santa Barbara


Climate science is catching up to climate change with predictions that could improve proactive response

Researchers at UC Santa Barbara's Climate Hazards Center have made significant advancements in predicting droughts and food shortages in the Eastern Horn of Africa, enabling agencies to take effective actions and provide humanitarian assistance. These early warnings have helped prevent devastating famines and saved millions of people f...

SourceUniversity of California - Santa Barbara·JournalEarth s Future·DateJul 20, 2023

Astrophysicists propose a new way of measuring cosmic expansion: lensed gravitational waves

Researchers propose using lensed gravitational waves from binary black holes to measure cosmic expansion. The method uses the delays between repeat appearances of these signals to encode the universe's expansion rate. This approach does not rely on knowing the exact locations or distances of binary black holes, making it a promising to...

SourceUniversity of California - Santa Barbara·JournalPhysical Review Letters·DateJun 30, 2023

Disorder lends robustness to the embryonic development of a tiny shrimp

Researchers have made a groundbreaking discovery in the developmental biology of Parhyale hawaiensis, a tiny crustacean with unique appendages. By tracking the development of an embryo, they found that cells divide and reorient themselves to maintain alignment with the head-tail axis, resulting in a robust and coordinated body structure.

SourceUniversity of California - Santa Barbara·JournalNature Physics·DateJun 29, 2023

The more stakeholders are included in policy planning, the better those policies protect them

Researchers found that groundwater management plans with stakeholder input offered greater protection from groundwater depletion, especially for domestic wells and ecosystems. However, only 9% of plans integrated all three stakeholder groups, with economically vulnerable communities being disproportionately affected.

SourceUniversity of California - Santa Barbara·JournalNature Communications·DateJun 27, 2023

New research finds that more than 90% of global aquaculture faces substantial risk from environmental change

A landmark study reveals that more than 90% of global aquaculture and capture fisheries face substantial risks from environmental change. The study highlights the interconnectedness of ecosystems and the need for transboundary collaboration, diversification, and stakeholder engagement to adapt to climate change.

SourceUniversity of California - Santa Barbara·JournalNature Sustainability·DateJun 26, 2023

People in power who are guilt-prone are less likely to be corrupt

A study by UC Santa Barbara psychology professor Hongbo Yu found that individuals prone to guilt in their everyday lives are less likely to take bribes. The research suggests that anticipatory guilt may make people think twice before engaging in corrupt behavior, particularly when they can see the potential harm to others.

SourceUniversity of California - Santa Barbara·JournalSocial Psychological and Personality Science·DateJun 26, 2023

Sharpening Occam’s Razor

Researchers aim to characterize theory structure using symmetry, but find it doesn't capture enough information for a thorough comparison of complexity. They explore alternative approaches to measuring structural complexity, but ultimately conclude that symmetry-based methods may be limited.

Lessons from ‘The Blob’ will help us manage fisheries during future marine heatwaves

A new study examines the impact of marine heatwaves on fisheries and ecosystems, providing insights for managing these disruptions. The research highlights both winners and losers in the face of warming waters, emphasizing the need for adaptable management strategies to mitigate losses and capitalize on unexpected gains.

SourceUniversity of California - Santa Barbara·JournalFish and Fisheries·DateJun 5, 2023

An embarrassment of riches

Researchers found that Indigenous populations with limited food availability have slower brain aging, while industrialized populations experience faster cognitive decline. Beyond a certain point, excessive energy gain from food intake is associated with smaller brain volumes and faster aging.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateApr 11, 2023

Forest futures

A new study predicts US forests may lose significant carbon storage due to climate change, compromising their role as a climate solution. The researchers used multi-perspective modeling approaches to forecast changes in aboveground carbon storage in different regions.

SourceUniversity of California - Santa Barbara·JournalNature Geoscience·DateApr 6, 2023

Special Selection

A team of global experts discovered new signals of natural selection in humans, focusing on the Tsimane and Moseten populations living in the Bolivian Amazon. They found 21 regions in the genome that underwent positive selection for immunity-related traits and metabolic functions.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateMar 1, 2023

The Future of Touch

A new study reveals that holographic haptic displays create diffuse and faint tactile sensations due to widespread vibration patterns in the skin. The researchers discovered a phenomenon known as constructive interference that amplifies shock waves, leading to reduced spatial precision and clarity.

SourceUniversity of California - Santa Barbara·JournalScience Advances·DateMar 1, 2023

Resistance is futile

Researchers developed an antibiotic that cured mice infected with nearly untreatable bacteria, with virtually undetectable resistance to the drug. The unique mechanism of action targets multiple bacterial functions, disrupting the bacterial membrane and leading to broad-spectrum antibacterial activity.

Asphalt volcano communities

Researchers document diverse assemblage of fish species living on asphalt volcanoes in the Santa Barbara Channel, characterized by low densities and high diversity rates. The team's findings highlight the unique nature of these habitats and emphasize the need for conservation efforts to protect them.

SourceUniversity of California - Santa Barbara·JournalBulletin of Marine Science·DateFeb 13, 2023

Chicken of the sea

A study by UC Santa Barbara researchers found that 95% of the cumulative environmental footprint of farmed chicken and salmon is concentrated on less than 5% of the planet, with 85.5% spatial overlap between the two products due to shared feed ingredients. This highlights opportunities for promoting sustainability in the food system.

SourceUniversity of California - Santa Barbara·JournalCurrent Biology·DateFeb 13, 2023

All hands on deck

A group of over 100 researchers identified priorities for synthesis research in ecology and environmental science, including diversity, equity, inclusion, and justice. The study aims to address pressing issues and adapt to complex shifts in the environment by incorporating diverse perspectives and data.

A multifaceted sensation

Scientists found that neurons actually fall silent above a certain level, with the most sensitive ones dropping off first. This finding challenges the long-held assumption that neurons plateau in activity above odor concentrations, and suggests a more complex encoding of smells at different levels.

SourceUniversity of California - Santa Barbara·JournalScience Advances·DateJan 4, 2023

A stem cell's sense of touch

Embryonic cells use mechanical cues, known as the cell's sense of touch, to make collective decisions during tissue formation. The study reveals that cells perceive the stiffness and confinement of a 'living foam' structure, which changes its properties at the moment of differentiation.

SourceUniversity of California - Santa Barbara·JournalNature Materials·DateJan 3, 2023

Facing the heat

Researchers found that Kellet's whelk larvae are susceptible to developmental abnormalities and mortality at high temperatures, with half of hatchlings dying off at 27.6°C and veligers more resistant to defects at 24.9°C

SourceUniversity of California - Santa Barbara·JournalJournal of Shellfish Research·DateDec 8, 2022

Mapping Lyme disease out west

Researchers at UC Santa Barbara discovered that the ecology of small mammals upon which ticks feed can explain rates of human Lyme disease in California. The study found a clear link between infected ticks and their frequent hosts, such as dusky-footed woodrats, with diverse species playing a role in transmission.

SourceUniversity of California - Santa Barbara·JournalEnvironmental Research Letters·DateNov 21, 2022

A changing sea floor

The Blob, an extreme marine heatwave that hit the Santa Barbara Channel from 2014–2016, has had a lasting impact on kelp forest communities. Six years later, researchers found that while some species have recovered, others have declined or been replaced by invasive bryozoans.

SourceUniversity of California - Santa Barbara·JournalCommunications Biology·DateNov 16, 2022

Mixing up metabolism

A three-year experiment found that mixotrophs evolved to be less photosynthetic at higher temperatures, potentially increasing CO2 production and contributing to climate change. The study also suggests natural selection has a stronger effect on organisms with less flexible characteristics.

SourceUniversity of California - Santa Barbara·JournalGlobal Change Biology·DateNov 4, 2022

The next wonder semiconductor

Cubic boron arsenide's high thermal conductivity and surprising long-lasting 'hot' electrons make it a promising material for photovoltaic and light detection applications. Researchers visualize the charge movement in single crystals using scanning ultrafast electron microscopy, revealing new transport properties.