Articles tagged with Extinction
The Earth BioGenome Project aims to create a digital library of DNA sequences to preserve and protect life on Earth. The project has revealed a refined strategy to scale up the sequencing of 150,000 species, accelerating biodiversity research and global conservation.
Researchers have uncovered a new species of bettong and two new subspecies of woylie in Western Australia, revealing vital clues about the diversity of these critically endangered marsupials. The discovery has significant implications for conservation efforts, including breeding and translocation initiatives.
A new study reveals a hidden extinction crisis in China's native flora, showing that habitat decline over the past four decades has sharply increased extinction risks nationwide. The findings suggest that current conservation efforts are failing to keep pace with biodiversity threats.
The majority of extant species belong to a limited number of rapid radiations, forming groups with many species that evolved in a relatively short period. These rapid radiations are thought to occur when new ecological niches open up, such as the emergence of multicellularity and powered flight.
Researchers have identified 48 previously unknown bacterial species in the indri's microbiome, which is largely established through transmission between members of the same social group. This finding has significant implications for preserving the species' habitat and preventing extinction.
The study chronicles 220 extinctions in Macaronesia, with half linked to human arrival and a post-human extinction rate exceeding 12 times higher than pre-human periods. Conservation efforts are crucial to mitigate the extinction crisis in these unique island ecosystems.
A new analysis of a 500 million-year-old fossil suggests that arachnids, including spiders and scorpions, evolved in the ocean before adapting to land. The discovery was made by studying the brain and nervous system of an ancient marine arthropod called Mollisonia symmetrica.
A team of scientists proposes using gene editing to restore lost genetic diversity in endangered species, enabling them to adapt to future environmental changes. The approach could complement traditional conservation methods and attract new investors and expertise.
Researchers have identified a new genus of frog, Dryadobates, comprising at least 12 species, with three already declared extinct. The study utilized historical DNA analysis to clarify the taxonomic classification of previously single-species frogs, revealing hidden diversity and extinctions in the Atlantic Forest.
A new analytical method reveals overlooked species at risk of extinction, providing a valuable layer of insight for conservationists. The dual-role approach captures both predator and prey interactions, identifying keystone species and vulnerabilities.
The Nature Relationship Index (NRI) aims to measure a country's sustainable path by assessing its relationships with nature, tracking progress and development. The NRI adds an environmental dimension to the Human Development Index, fostering mutually beneficial relationships between humans and the natural world.
Nearly half of Mesoamerica's 4,000+ tree species are at risk of extinction, primarily driven by agriculture and logging. Conservation efforts are urgently needed to protect these species.
Researchers argue that deliberate full extinction might be acceptable in rare cases, but only with careful consideration of ecological and moral implications. The study calls for robust ethical safeguards and inclusive decision-making frameworks to guide the use of genetic modification technologies.
A recent study documents the discovery of over 100 new ribbon worm species off Oman's coast, highlighting a significant underestimation of global marine biodiversity. The finding underscores the importance of exploring lesser-studied regions, such as the tropics, to uncover the full extent of oceanic diversity.
An international study found that dehorning rhinos resulted in a drastic reduction of poaching, with a 78% decrease in poaching rates. The study analyzed data from 11 Greater Kruger reserves and found that dehorning reduced incentives for poaching, making it an effective conservation strategy.
A new genomic study offers a unique lens for understanding the extinction crisis in Hawai'i, revealing that there is still time to save the critically endangered honeycreeper 'akeke'e. With only 17 species of iconic honeycreepers remaining, efforts to control mosquito populations and conservation breeding programs are underway.
New research finds megalodon preyed upon a variety of species, including fish, sharks, and even crustaceans, contrary to the long-held belief that it targeted large marine mammals. The discovery was made by analyzing zinc isotopes in fossilized teeth, providing insights into the prehistoric shark's ecological versatility.
Scientists analyzed ancient DNA, fossil shape, and habitat data to determine the factors influencing the size of extinct giant ground sloths. The result shows that size differences among sloths have been primarily influenced by the types of habitats they lived in and climate change.
A study by Kobe University reveals that plants reproducing solely through self-pollination likely arose from populations with extremely low genetic diversity. The research found that these species are highly successful at producing fruit and may have an evolutionary edge over outcrossing, raising questions about their long-term viability.
A recent study found that human activities negatively impact plant diversity over vast distances, with natural habitats containing only a fraction of potential species in heavily impacted regions. The DarkDivNet network analyzed 5,500 locations across the globe, revealing alarming effects on biodiversity.
Researchers have mapped the saola's genome, revealing two distinct populations with significant genetic differences, and estimate that fewer than 100 individuals remain, raising hopes for conservation efforts through captive breeding and genetic de-extinction. The study provides new insights into the species' history and future prospects.
The Monte Gordo Grasshopper, thought extinct since 1980, has been rediscovered in Cape Verde's São Nicolau island. The species, a 'living fossil,' has shown remarkable resilience in the challenging environment.
Researchers found that a fertility rate of at least 2.7 children per woman is needed to reliably avoid eventual extinction in small populations. A female-biased birth ratio can reduce extinction risk, helping more lineages survive over time.
A new study published in Proceedings of the Royal Society B: Biological Sciences sheds light on how a 252-66 million-year-old 'marine revolution' influenced foraminifera diversity and survival. The study found that calcareous forams flourished after the MMR, becoming dominant types living today.
Studies suggest that straight-tusked elephants ( Palaeoloxodon antiquus ) could still inhabit Europe today due to the continent's suitable climate. The species helped shape Europe's landscape, maintaining open spaces and light woodlands that still support native plant species.
Scientists have discovered a 113-million-year-old hell ant fossil in Brazil, representing the earliest undisputable geological record of ants. The find showcases highly specialized anatomical features, suggesting unique hunting behaviors in ancient insects.
Researchers used fossil data to predict the home range of Protemnodon, an extinct giant kangaroo, finding it had a smaller foraging range than expected. Climate change and habitat disruption led to local extinction when this small range could not find enough food.
Camille Parmesan wins BBVA Foundation award for her pioneering studies on species shifting their geographical ranges in response to climate change. Her research has provided vital input to conservation strategies, including corridor creation and protected areas.
A 16-million-year-old fossil of a newly discovered extinct dirt ant species, Basiceros enana, has been found in Dominican amber. The Caribbean species is notably smaller than its modern relatives, offering direct evidence of their presence in the region before local extinction.
A study predicts that over 80% of amphibian species in the Upper Paraguay River Basin will lose suitable habitats by 2100. The region, which includes the Pantanal and its surroundings, is expected to experience local extinctions under both optimistic and pessimistic greenhouse gas emissions scenarios.
Scientists at Woods Hole Oceanographic Institution develop a novel approach to assess extinction risk for emperor penguins, revealing they meet criteria for Vulnerable to Endangered under IUCN guidelines. This change highlights the elevated risk emperor penguins face due to future changes in their Antarctic habitat.
A major review of over 67,000 animal species found that targeted conservation efforts are helping to recover many species threatened with extinction. The study highlights both successes and the need for urgent action to address the global biodiversity crisis.
A study analyzed conservation actions for endangered species and found that targeted efforts have driven improvements in over 100 species. However, only half of assessed species have conservation actions in place, and roughly six times as many species have deteriorated in recent decades than have improved.
The Cuban blue-headed quail dove is an enigmatic bird species with a perplexing evolutionary history. Its DNA analysis reveals it to be more distinct from other doves than previously thought, dating back at least 50 million years.
Researchers used a novel approach to estimate megalodon's body length and shape, finding it closer in shape to a lemon shark or large whale. The study suggests the prehistoric predator may have reached about 80 feet in length and weighed an estimated 94 tons.
A new analysis reveals that nearly half of the genus Heliconia, a group of tropical plants related to birds-of-paradise and bananas, are threatened with extinction. Many imperiled plants are not found within protected areas or botanical gardens, making additional conservation action crucial.
A study on the desert rat-kangaroo's feeding habits could help focus search efforts and potentially 'resurrect' the species. The research, published in the Journal of Experimental Biology, found that the animal's skull is adapted for softer foods rather than harder ones.
A new study suggests that up to 70% of suitable habitats for the critically endangered whitefin swellshark will be lost over the next 75 years due to predicted ocean changes. The researchers believe that Australia's proactive conservation measures, such as marine protected areas, offer hope for the species' survival.
Scientists have released new high-quality genome sequences for two critically endangered pangolin species, revealing genetic vulnerabilities and extinction risks. The research provides essential information for rescue operations and focusing on the best ways to conserve these unique animals.
Researchers argue that rewilding productive farmland or forestry in industrialised nations with low biodiversity may do more harm than good on a planetary scale. Efforts to conserve nature can displace production to more biodiverse regions, leading to increased demand for commodities like red meat.
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...
Botanic gardens have reached peak capacity, hindering efforts to gather plant diversity for study and protection. Despite accelerated rates of extinction risk, institutions struggle to conserve threatened plants within collections globally.
A team of researchers from Florida Atlantic University, San Diego Natural History Museum, and SeaWorld San Diego collaborate to digitize a rare vaquita skeleton, providing a valuable resource for conservation efforts. The scans resulted in three terabytes of data and will be used to create replicas for public display and education.
The creation of more fox-free safe havens is crucial to ensure the survival of the Parma wallaby. The species faces threats from fox predation, bushfires, and habitat loss, highlighting the need for greater collaboration between government and landowners.
Research found that 14% of Ecuadorian Amazon tree species are critically endangered, while 47% are endangered, primarily due to declines in animal species that disperse their fruits. The study highlights the importance of incorporating ecological traits into extinction risk estimates.
A new study has uncovered a rare plant fossil with unusual flowers, fruits, and stems that does not belong to any living family or genus. The discovery suggests there may be more diversity in the fossil record of flowering plants than previously recognized.
A new study reveals that overfishing has caused chondrichthyan fish populations to decline by more than 50% since 1970. The risk of extinction for these species has increased by 19%, with the largest species facing elimination of up to 22% of ecological functions.
A new study estimates that more than 9,000 invertebrates, including pollinators and earthworms, have become extinct in Australia since European arrival. The study suggests that many species remain at high risk of extinction due to habitat loss and climate change.
Research from Washington University in St. Louis found that bird wing shape is a key factor shaping biodiversity patterns on islands worldwide. The study revealed how birds' dispersal abilities influence the number of species found on islands, with low-dispersal birds leading to steep species-area relationships.
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.
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.
A recent study highlights that over one-third of Vietnam's 329 mammal species are threatened with extinction, with around 40% lacking ex situ conservation programs. Iconic species like the saola and silver-backed chevrotain are among those at risk.
Researchers from Tohoku University and partners developed a decentralized control system to analyze plesiosaur locomotion, accounting for motion adjustment. The system successfully recreated coordinated flippers patterns in response to changes in flapping cycle and morphology.
A fossilized leg bone of a massive terror bird, found in Colombia, provides new information about the region's wildlife during the Miocene epoch. The discovery suggests that this bird species was relatively uncommon among other animals in the area.
The study reveals large genomic differences between European aurochs, North Asian aurochs, and South Asian ancestor, with evidence of human intentional feeding and targeted domestication. The genome of the central European aurochs was fully decoded for the first time, providing insights into the history of wild cattle in Europe and Asia.
A new parasite, Pachysentis canicola, has been discovered on the Channel Island fox, causing severe intestinal damage and inflammation in infected individuals. The study highlights the importance of biosecurity in the Channel Islands National Park and underscores the impact of human activity on isolated ecosystems.
The discovery sheds light on early human behavior and diet in India, providing the first direct evidence of humans feeding on large animals. The fossils belong to an extinct genus of elephants called Palaeoloxodon, with only one set of bones found previously.
A new study has revealed that 90 species of plants from the Centinela range were not extinct as previously thought. The researchers found abundant evidence of the flora's presence in remaining forest fragments and discovered over 50 new plant species, including eight newly described species.
A team of scientists studied the Kashmir skull and found it to be a distinct species from other known Eurasian Palaeoloxodon. The research suggests that Palaeoloxodon turkmenicus represents a poorly-known missing link in the evolution of these prehistoric megaherbivores.
Dragonfly species with darker wing coloration have evolved to tolerate higher temperatures, possibly a decisive advantage in a warming world. This finding could help predict which species are vulnerable to extinction and preserve biodiversity.