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Coral atoll islands may outpace sea-level rise with local ecological restoration, scientists say

A team of scientists suggests that coral atoll islands can adapt to sea level rise through local ecological restoration. Restoring the natural process of island growth could significantly improve the health of surrounding coral reef habitats. Funding for restoration work could empower communities to take back ownership of their futures.

SourceUniversity of Auckland·JournalTrends in Ecology & Evolution·TypeCommentary/editorial·DateDec 18, 2023

Coral reefs in peril from record-breaking ocean heat

A recent study by University of Queensland scientist Professor Ove Hoegh-Guldberg warns that record-breaking marine heatwaves will cause catastrophic mass coral bleaching worldwide. The research suggests that current marine heatwaves will likely lead to a global mass coral bleaching event over the next 12-24 months.

SourceUniversity of Queensland·JournalScience·TypeMeta-analysis·DateDec 8, 2023

Protection of highly threatened sharks and rays inadequate

A new study by the University of Zurich found that global shark and ray protection is inadequate, with crucial species playing vital ecological roles in maintaining biodiversity. The research identified 18 unique functional diversity hotspots concentrated along continental shelves and oceanic islands.

SourceUniversity of Zurich·JournalNature Communications·TypeData/statistical analysis·DateNov 29, 2023

Shining a light on tiny, solar-powered animals

A study by Hokkaido University researchers has discovered a wide diversity of symbiotic, photosynthetic microalgae associated with small, worm-like animals called acoels. Acoels form relationships with single-celled microalgae, storing them below their outer surface and creating energy using sunlight.

SourceHokkaido University·JournalPeerJ·TypeExperimental study·DateOct 5, 2023

Fauna return rapidly in planted eelgrass meadows

Researchers from the University of Gothenburg found that replanted eelgrass meadows can restore biodiversity rapidly, with up to 80% of invertebrates returning after just three months. The study's findings suggest smaller plot sizes can be used, saving money on restoration efforts while maintaining ecosystem health.

SourceUniversity of Gothenburg·JournalRestoration Ecology·TypeExperimental study·DateMay 17, 2023

Warming Arctic draws marine predators northwards

Recent climate change has led to an expansion of marine predator ranges into Arctic waters, resulting in increased species richness and altered community compositions. The study found that apex predators such as whales and sharks have migrated northwards, while mesopredators like fish and crabs showed more limited range shifts.

SourceHokkaido University·JournalScientific Reports·TypeComputational simulation/modeling·DateApr 3, 2023

If you build it, they will come

A new study published in Ecosphere finds that newly created tidal marshes in Barataria Bay rapidly become indistinguishable from natural marshes, supporting the state's plans to rebuild its coastline. The research reveals similar biodiversity in both created and natural marshes.

SourceLouisiana State University·JournalEcosphere·TypeObservational study·DateMar 24, 2023

Northern and southern resident orcas hunt differently, which may help explain the decline of southern orcas

A new study reveals that northern and southern resident orcas differ in their hunting behaviors, with males catching more salmon per hour than females. Southern resident males outperform females by 152%, highlighting a distinct pattern of foraging that may contribute to the population decline.

SourceUniversity of Washington·JournalBehavioral Ecology·TypeObservational study·DateMar 10, 2023

HKU Marine Scientist contributes to research assessing the potential risks of ocean-based climate intervention technologies on deep-sea ecosystems

A research team led by Dr Lisa Levin assessed the potential risks of OBCIs on deep-sea ecosystems, raising substantial concern about their impacts on biodiversity and biogeochemistry. The study highlights the need for an integrated research framework to carefully consider the cost and benefits of each intervention.

SourceThe University of Hong Kong·JournalScience·TypeExperimental study·DateMar 10, 2023

Climate change disrupts core habitats of marine species

A modelling study by an international team of researchers found that climate change will likely disrupt core habitats of marine species, reducing suitable ranges by the end of this century. The results highlight the need for effective conservation management to protect marine biodiversity and resources.

SourceUniversity of Oldenburg·JournalGlobal Change Biology·TypeComputational simulation/modeling·DateFeb 16, 2023

Killer whale mums pay high price for raising sons

A new study found that killer whale mothers pay a high price for raising their sons, with each living son cutting their annual breeding likelihood in half. This lifelong burden on mothers has significant implications for the future viability of the southern resident killer whale population, which is critically endangered.

SourceUniversity of Exeter·JournalCurrent Biology·TypeObservational study·DateFeb 8, 2023

Portland State study discovers immense diversity and interdependence in high temperature deep-sea microorganism communities

A new study by Portland State University researchers found that deep-sea microorganisms thrive in high-temperature environments and exhibit a staggering level of diversity, with over 500 new genera discovered. The microbes also rely on each other for survival through metabolic handoffs, revealing a complex interdependence.

SourcePortland State University·JournalMicrobiome·TypeData/statistical analysis·DateJan 23, 2023

Climate ‘presses’ and ‘pulses’ impact Magellanic penguins — a marine predator — with guidance for conservationists

A recent study by University of Washington researchers found that climate 'presses' and 'pulses' have equal importance on Magellanic penguin population survival. The team analyzed nearly four decades of data at Punta Tombo, Argentina, revealing a decline in breeding pairs from 400,000 to 150,000 between the 1980s and 2019.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateJan 9, 2023

Multidisciplinary, cross-border collaboration and stable levels of funding extend knowledge of the oceans

Researchers analyzed 300 oceanographic projects funded by FAPESP, revealing a shift from USP to other institutions. FAPESP's support for long-term projects and collaborative research has significantly increased knowledge of Brazilian oceans. Deep-sea research remains a gap to be filled, requiring further collaboration and funding.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalBiota Neotropica·TypeSystematic review·DateJan 4, 2023

Countries bet on forests and soils to reach net-zero

A new study by the University of East Anglia highlights the risks of relying on nature-based solutions, such as forests and soils, to achieve net-zero emissions. The research warns that these solutions may not be enough to offset the remaining difficult-to-decarbonize emissions if progress on reducing fossil fuel use stalls.

SourceUniversity of East Anglia·JournalCommunications Earth & Environment·DateDec 7, 2022

Understanding the cryptic role fungi play in ecosystems

Researchers analyzed over 4,500 documents to understand fungal dispersal across spatial scales. They identified four scales of movement, from microscopic to landscape, and found that climate change affects where fungi reside. More data is needed to understand the biodiversity of fungi and their movement in ecosystems.

SourceDartmouth College·JournalAnnual Review of Ecology Evolution and Systematics·TypeLiterature review·DateDec 5, 2022

Global assessment by HKU Marine Scientists found that Oyster reef restoration rapidly increases marine biodiversity but increased restoration effort is needed to eliminate historical damage

HKU Marine Scientists found that oyster reef restoration rapidly increases marine biodiversity, with a 35% shortfall in species diversity and ecosystem services. The research suggests that long-term protection is needed to mature restored reefs into complex ecosystems.

SourceThe University of Hong Kong·JournalScience Advances·TypeObservational study·DateNov 28, 2022

Study explains formation of rich mammal diversity in Asia

Researchers analyzed 3,114 mammal species across Asia and adjacent continents to understand the origin and timing of its rich biodiversity. The study found that tropical forests are a major center of diversity, while Himalayan and Hengduan Mountains are accumulation centers with lineages migrating from other regions.

SourceChinese Academy of Sciences Headquarters·JournalProceedings of the National Academy of Sciences·TypeMeta-analysis·DateNov 28, 2022

What Darwin would discover today

Eduardo Sampaio joined the Captain Darwin expedition to study octopus behavior and discovered they can recognize themselves in mirrors. The project aims to update Darwin's research style with modern methods, including machine learning and computer vision.

SourceUniversity of Konstanz·JournalPLOS Biology·DateNov 18, 2022

Chemical weapons may not protect Antarctic seafloor animals and their value for drug discovery

A recent study found that most Antarctic species' chemical compounds can repel amphipod predators but are ineffective against hermit crabs, which could decimate local populations. This highlights the vulnerability of Antarctic ecosystems to invasive species and underscores the importance of long-term research on the seafloor.

SourceMarine Biological Laboratory·JournalMarine Drugs·TypeExperimental study·DateNov 17, 2022