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Search results for “Extinction”

1,000+ results for "Extinction"

The cost of preventing extinction of Australia’s priority species

A new study estimates it would cost $15.6 billion per year for 30 years to prevent extinction for 99 of Australia's priority species, due to habitat destruction, invasive species, and climate change. The Australian Government has committed to reversing the decline of 110 priority species, but experts warn that urgent action is needed t...

SourceGriffith University·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateFeb 3, 2025

Discovering the traits of extinct birds

Researchers found that birds endemic to islands, lacking flight, and with large bodies and sharply angled wings were more likely to disappear first. The study analyzed 216 bird extinctions since 1500 and identified traits that correlate with extinction timing.

SourceUniversity of Utah·JournalAvian Research·TypeData/statistical analysis·DateNov 27, 2024

Atlantic corals may be even more at risk of extinction than previously thought, per updated assessment classifying almost 1 in 3 species as Critically Endangered

A recent assessment has classified almost 1 in 3 Atlantic reef-building coral species as Critically Endangered due to the combined effects of climate change and other environmental factors. This increased threat level highlights the urgent need for conservation efforts to protect these vital ecosystems.

SourcePLOS·JournalPLOS ONE·DateNov 13, 2024

The true global impact of species-loss caused by humans is far greater than expected – new study reveals

A new study reveals the true global impact of human-induced species loss is far greater than previously thought, resulting in a loss of approximately 3 billion years of unique evolutionary history. This extinction crisis has severe consequences on ecosystem function, including reduced pollination, seed dispersal, and disease outbreaks.

SourceUniversity of Birmingham·JournalScience·TypeData/statistical analysis·DateOct 3, 2024

Unravelling an ancient European extinction mystery: Disappearance of dwarf megafauna on palaeolithic Cyprus

A new study reveals that palaeolithic hunter-gatherers on Cyprus are responsible for the disappearance of two species of megafauna: dwarf elephants and hippos. The research suggests that these small human populations could have driven both species to extinction due to their hunting practices.

SourceFlinders University·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateSep 17, 2024

An ancient Neanderthal lineage remained isolated from other populations for over 50,000 years—up until the species extinction

A fossilized Neanderthal, nicknamed 'Thorin', lived in a small isolated community for over 50,000 years before the species' extinction. The discovery reveals two distinct Neanderthal populations coexisted without exchanging genes, challenging previous assumptions about their population structure.

SourceCell Press·JournalCell Genomics·TypeExperimental study·DateSep 11, 2024

Combining genetic diversity data with demographic information more reliably reveals extinction risks of natural populations

A recent study published in PNAS found that genome-wide genetic diversity is a strong predictor of extinction risk when demographic factors are considered. The researchers analyzed data from a butterfly metapopulation and found a strong negative relationship between genetic diversity and extinction risk, but this correlation was largel...

SourceUniversity of Helsinki·JournalProceedings of the National Academy of Sciences·DateAug 16, 2024

Ancient marine animal had inventive past despite being represented by few species, new study finds

A new study reveals that brachiopods, despite being represented by few species, were evolving new shell shapes and ecological behaviors after the end-Permian mass extinction. The research found that disparity and diversity are decoupled in brachiopod history, with innovative shell forms not translating to many new species.

SourceUniversity of Bristol·JournalNature Ecology & Evolution·TypeSystematic review·DateJul 25, 2024

The evidence is mounting: humans were responsible for the extinction of large mammals

Researchers from Aarhus University conclude that human hunting was responsible for the extinction of at least 161 species of large mammals over the past 50,000 years. The analysis of various research fields, including climate history and genetic estimates, suggests that human hunting was widespread and consistent across the world.

SourceAarhus University·JournalCambridge Prisms Extinction·TypeSystematic review·DateJul 1, 2024

Ammonites went out with a diverse bang—and not a long, slow fizzle—in the Late Cretaceous

A new study using museum collections reveals that ammonites were diverse and thriving across the globe just before their extinction in the Late Cretaceous. The research found that the balance of speciation and extinction rates varied by region, contradicting previous theories.

SourceNatural History Museum of Los Angeles County·JournalNature Communications·TypeData/statistical analysis·DateJun 27, 2024

Advances in techniques used to identify sharks and rays have not prevented trade and increase in extinction risk

Despite improved molecular methods, trade in endangered sharks and rays has continued to rise, with 83% of detected species considered at risk of extinction. Research reveals that DNA sequencing techniques have become more cost-effective but failed to reduce the extent of species threats.

Human activity contributed to woolly rhinoceros’ extinction

Researchers used computer modeling and ancient DNA to discover sustained hunting by humans prevented woolly rhinoceros from accessing favorable habitats. The study reveals how climate change and human activities can lead to megafauna extinctions, with lessons for safeguarding Earth's remaining large animals.

SourceUniversity of Adelaide·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateJun 3, 2024

New study finds life on land is more vulnerable to mass extinctions than life in the oceans and takes longer to recover

A new study published in Proceedings of the Royal Society B found that the end-Triassic extinction had a greater impact on terrestrial ecosystems than marine ecosystems. Terrestrial ecosystems took longer to recover from mass extinction events, with higher extinction severity and fewer groups occupying key ecological roles.

SourceNatural History Museum of Los Angeles County·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateFeb 12, 2024

Australia's most at-risk bird species share some common traits

A recent study from Australian National University reveals that many native bird species are facing uncertain futures due to factors like island isolation, adaptability to agricultural areas, and evolutionary uniqueness. The researchers found that slow-breeding species with larger body sizes tend to struggle with environmental changes.

SourceAustralian National University·JournalEmu - Austral Ornithology·TypeData/statistical analysis·DateFeb 12, 2024

NUS scientists develop novel method to estimate biodiversity loss in Singapore over the past two centuries

A new study reveals that Singapore has lost 37% of its species over the past two centuries, with larger mammals and forest-dependent birds being particularly at risk. The researchers recommend prioritizing landscape-scale conservation efforts for charismatic species, such as tigers and orangutans, to mitigate extinction rates.

SourceNational University of Singapore·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateJan 29, 2024

Comprehensive assessment reveals high extinction risks for thousands of Atlantic Forest trees in eastern South America

A comprehensive assessment reveals that roughly two-thirds of Atlantic Forest tree species are threatened with extinction, including 82% of endemic species. The study suggests that conservation efforts may need to be revised due to the high extinction risks for tropical forests worldwide.

Study reshapes understanding of mass extinction in Late Devonian era

Researchers have long debated the cause of the Late Devonian mass extinction event, with some attributing it to large-scale volcanic eruptions and others to a mass deoxygenation event caused by land plants. A new study now posits that both factors played a role, highlighting the environmental tipping points the planet faces today.

SourceIndiana University·JournalCommunications Earth & Environment·TypeComputational simulation/modeling·DateDec 6, 2023

Mysteries of Earth’s ancient mass extinction event revealed

A team led by USC Dornsife researchers has uncovered stark differences in the impact of a 200-million-year-old mass extinction event on marine and terrestrial ecosystems. The study found that land-based ecosystems were hit harder, with nearly 96% of species going extinct, while marine ecosystems showed resilience with only 71% of gener...

SourceUniversity of Southern California·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateDec 6, 2023

Innovative approach reveals environmental mechanisms of the end-Cretaceous extinction

A novel approach combines models with MCMC inversion to predict CO2 and SO2 emissions, carbon export productivity, and remineralization changes across the K/Pg boundary. The results show decoupled CO2 and SO2 emissions, evidence for a two-stage drop in carbon export productivity, and no clear signal of a volatile impulse at the boundary.

Dartmouth study removes human bias from debate over dinosaurs' demise

A new modeling method powered by interconnected processors removed human bias from the debate over dinosaurs' demise. The study suggests that the outpouring of climate-altering gases from the Deccan Traps alone could have been sufficient to trigger global extinction, consistent with volcanic eruptions contributing to the mass extinction.

SourceDartmouth College·JournalScience·TypeComputational simulation/modeling·DateSep 28, 2023

“Zero plant extinction” is possible, says plant ecologist

A plant ecologist proposes a multi-faceted approach to preventing all future land plant extinctions. Training more plant experts and creating an online 'metaherbarium' with digitized records of species are key components, alongside building microreserves and increasing funding.

SourceCell Press·JournalTrends in Plant Science·TypeLiterature review·DateMay 2, 2023