Articles tagged with Endangered Species
Research suggests that forests played a crucial role on the island before people changed the landscape to grow crops and graze domesticated animals. The study found that hippo isotopes indicate they did not regularly graze in open habitats, but instead fed on sedges and leaves.
The Ngoc Linh Crocodile Newt is a newly discovered species of crocodile newt found in the Central Highlands of Vietnam. The species is considered Endangered due to its small population size and limited geographic range.
A new study reveals the Mediterranean as the area most at risk globally for endangered seabirds, with areas like Portugal's Exclusive Economic Zone also showing considerable risk. Seabirds are already vulnerable or endangered, and plastic exposure worsens their fragile state.
A study has revealed that a quarter of all plastics potentially encountered by petrel species are in remote international waters, posing a significant threat to their survival. The research highlights the need for international cooperation to address plastic pollution in the world's oceans.
A new study reveals that Amazon river dolphins are under threat from fishing, proposed dams, and dredging, with their home ranges spanning over 50km. The dolphins were found to be on average 252km from the nearest proposed dam and 125km from the nearest dredging site.
Researchers observed a steady increase in skin disease among southern resident killer whales from 2004 to 2016. The study suggests that the most plausible explanation is an infectious agent, potentially reflecting a decrease in immune system ability to combat disease. This could pose a significant threat to the health of the population.
A new study highlights the immense potential of living cell banks in contributing to global conservation priorities. By analyzing genetic samples from the Frozen Zoo, researchers identified opportunities to increase representation of threatened species and provide access to critical genetic diversity.
A new study highlights the potential of living cell banks to contribute to global conservation priorities. Cryo-banked samples provide crucial genetic diversity and reintroduction opportunities to increase adaptability and resilience in threatened species.
A new Stanford University study models the distribution of seagrass species around the world at two different timepoints in the future, predicting widespread reductions in species diversity and composition under all scenarios. The research highlights the need for more intentional conservation efforts and emphasizes that even the curren...
Researchers tracked Egyptian vultures with GPS transmitters, showing differences in food strategies between breeding and non-breeding individuals. Closing landfills may lead to scarcity of resources for these birds, prompting calls for conservation efforts that support extensive livestock farming.
Researchers have developed a battery-free GPS tracker that harnesses kinetic energy from an animal's movements, allowing for longer-term tracking. The 'KineFox' device has been tested on several species, including horses and dogs, and shows promise for monitoring endangered species.
A trained detection dog can find great crested newts even through soil and at a distance, potentially aiding critical conservation efforts. The study, published in PLOS ONE, found the dog achieved an 87% success rate in detecting the species across various environmental conditions.
Research reveals that prescribed burns create favorable conditions for stinknet to spread, outcompeting native plants and reducing soil health. Targeted treatments after burns can help mitigate this issue.
Current measures to protect grasslands in the Qinghai-Tibetan Plateau are damaging the ecosystem and should be stopped. Small burrowing mammals, like the plateau pika and zokor, play crucial ecological roles in maintaining ecosystem health and biodiversity.
Researchers say current recovery targets do not support culturally vital harvests, calling for a shift to meaningful abundance and distribution of plants and animals. A collaboration between Indigenous leaders and Canadian scientists aims to preserve traditional ways of life and restore nature.
A new holistic framework evaluates mental and psychological wellbeing in wild animals, including physical and behavioral indicators for positive and negative experiences. This approach has the potential to provide crucial early warning signals about species challenges and population declines.
A research team at Leibniz-IZW identified molecular markers for testicular cell types in domestic cats and four wild feline species, allowing for the clear identification of Leydig and Sertoli cells, spermatogonia, and advanced germ cell stages. This breakthrough enables the maturation process of male germ cells in vitro.
More than 3 million sq km of Asian elephant habitat has been lost in 300 years, with suitable habitats cut by nearly two-thirds. The study suggests that the remaining elephant populations may not have adequate habitat areas, setting up a high potential for conflicts with people living in those areas.
A new study reveals that analyzing DNA can help predict which animals are most at risk of extinction. By examining the genomes of 240 mammal species, scientists found that those with smaller historical populations carry higher burdens of damaging mutations and are more likely to face extinction.
George Mason University researchers have identified key methods for successfully reintroducing captive birds into the wild, including exposing animals to wild food and providing supplemental feeding after release. Their study provides evidence-based support for exploring the use of behavior and its management as an influential tool in ...
A fossil of a 'royal fish', estimated to be over 66 million years old, was discovered in Morocco, marking the first time a sturgeon has been found in Africa. This finding suggests that sturgeons may have been more widespread than previously thought, complicating models of their origin.
The reintroduction of cheetahs to Kuno National Park in India faces challenges due to the park's small size and high prey density. Scientists warn that the released animals may move far beyond the park's boundaries, causing conflicts with villagers.
Two contagious cancers, devil facial tumour 1 (DFT1) and 2 (DFT2), affecting Tasmanian devils have been tracked to understand their origins and evolution. Researchers found DFT2 is a faster-growing cancer with rapid mutations, posing a significant threat to the species.
A study found that savanna species in Cerrado biome produce significantly more bark than forest species to protect against frequent fires. This adaptation enables them to survive and regenerate after burning, highlighting the importance of controlled fire management in these ecosystems.
Research reveals eastern wolves are genetically distinct from grey wolves and coyotes, suggesting a separate evolutionary origin around 67,000 years ago. The study also indicates hybridization between coyotes and eastern wolves has occurred at least twice, in the Great Lakes region.
The Save Our Seas Foundation has awarded a record 75 grants to support shark and ray conservation projects worldwide. The foundation's 20th anniversary year highlights growing commitment to protecting these vital ocean species.
Researchers developed a model that predicts which species are at risk of becoming threatened or extinct based on climate change, human population growth, and land use patterns. The study aims to shift conservation efforts from reactive to proactive, enabling the protection of species before they reach threatened status.
A review of scientific literature on reptiles between 1960 and 2021 found that 15% of articles focused on only ten species, with fewer than ten studies published on 90.5% of all species. The authors attribute this bias to factors such as habitat, size, danger of extinction, and proximity to research institutions.
A recent study by the University of Exeter has confirmed the widespread trading of critically endangered European eels in international markets. The research found that about 40% of North American unagi samples contained European eel, suggesting a significant role for illegal trade in their supply chain.
A new study reveals that the most endangered turtles and crocodiles are those with unique life strategies, which carry out critical processes in their ecosystems. The researchers highlight the urgent need for effective conservation management plans to protect these species and their habitats.
A study published in PNAS found that climate change is destabilizing mouse lemur populations on Madagascar, increasing their risk of extinction despite high reproductive output. The data analysis revealed opposing trends of rising mortality and reproductive rates, which have prevented population collapse but accelerated the life cycle.
The Southern Resident killer whale population is spending far less time in the San Juan Islands as their primary food source, Chinook salmon, declines. This decline is likely an effort to find alternative food sources, and research shows a strong relationship between the whales' presence and salmon returns.
A worldwide study found that non-English-language literature was extensively used in national reports but failed to be reflected in global reports. The team suggests that international collaboration and multilingual databases can help develop more effective conservation science.
A study from the University of Copenhagen found that extinct animal species on islands like Mauritius cannot be replaced, as they play a crucial role in seed dispersal and ecosystem balance. Reintroducing new species often causes more harm than good, highlighting the need for conservation efforts to protect native plants and animals.
A genetic census has been used to estimate the number and population structure of critically endangered western chimpanzees in West Africa. The analysis identified a total of 136 chimpanzees living in four different communities, with high levels of shared ancestry and genetic diversity.
A study analyzed news reports on Brazilian deer species between 2011 and 2021, finding that news coverage gave different weights to threats compared to the IUCN Red List. News items properly identified main threats like poaching and habitat loss but underestimated livestock diseases and overestimated road kill.
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.
Cambridge researchers observe Unio crassus mussels squirting water jets up to a meter away from the riverbed to increase the chances of their larvae attaching to specific host fishes. This behavior has never been seen in any other mussel species and may be crucial for the endangered species' survival.
Researchers from iDiv and MLU found that species with extreme body size shifts have a higher risk of extinction on islands. The study analyzed over 1,200 extant and extinct island mammals and found a correlation between human colonization and increased extinction rates.
Research reveals island-dwelling mammal species face higher extinction risks, with those experiencing extreme size changes being particularly endangered. Human arrival on islands multiplies the probability of extinction by 16, contributing to a 'protracted extinction event' spanning over 100,000 years.
A new technology developed by Arizona State University researchers allows scientists to remotely track the location and time of birth for shark pups, enabling them to protect critical habitats. The device, called Birth-Alert-Tags (BAT), has yielded remarkable results, revealing previously unknown birth sites for certain shark species.
Researchers developed an updated conservation metric, EDGE2, incorporating scientific uncertainty and status of related species. This approach identifies top-priority species for protection, preserving over 700 million years of evolutionary history, and allocates limited funds effectively.
The rediscovery of Thismia kobensis, a rare Asian fairy lantern species, provides new insights into its taxonomy and evolutionary history. The study reveals that the species has unique characteristics and may have evolved independently from other fairy lantern species.
A recent UBC study has found that southern resident killer whales require high-energy prey to survive, with spring-run Chinook salmon being the most suitable. The study's findings have significant implications for managing both species and mitigating the decline of this critically endangered population.
A new study by Oxford University Press USA found that watching nature documentaries, such as BBC's Green Planet, increases public awareness of plants and their importance. The researchers measured online behavior and found a significant effect on viewers' interest in portrayed plant species.
Researchers found that the feathers of large seabirds contained nutrients from multiple ocean basins, while smaller birds had elements matching their local foraging environments. This discovery may explain the long-distance migrations of threatened species.
A new study has identified the top factors that determine the success of large carnivore relocation efforts, highlighting the importance of protecting existing habitats. The findings could support global rewilding efforts and contribute to biodiversity conservation.
A team of scientists found a 16-year-old European hedgehog in Denmark, exceeding the previous record by seven years. The discovery contradicts previous studies suggesting that inbreeding reduces lifespan. The study's results provide valuable insights into the basic life history of hedgehogs and may improve conservation efforts.
Researchers found that nectar-feeding bats rely on extra-long whiskers to navigate flowers while feeding, providing enhanced spatial information. Clipping whiskers reduced agility but didn't impact feeding ability.
Researchers from Portugal and Cape Verde discover a unique shark nursery in the Sal Rey bay on Boa Vista island, home to juveniles of several endangered species. The area is crucial for shark conservation and also protects marine mammals and turtles, highlighting the importance of its protection.
Researchers at the University of East Anglia found that the Bahama Warbler may only survive on Abaco island after Hurricane Dorian devastated its forest habitat on Grand Bahama. The study, published in Bird Conservation International, reveals that the bird prefers areas with taller, more mature trees and can adapt to burnt vegetation.
Scientists from Okayama University used environmental DNA (eDNA) to survey the distribution and population density of the endangered bitterling fish in Japan. They found that eDNA concentrations vary according to the downstream channel distance, providing a reference for conservation surveys.
A group of international scientists warn that nuclear radiation would have catastrophic consequences on ecosystems, including widespread hunger, toxic contamination, and habitat destruction. The authors urge policymakers to take action to mitigate these risks.
A new study published in PeerJ Life & Environment has found that hand-rearing affects kākāpō clutch fertility, particularly in males, while improving chick survival rates. The research emphasizes the importance of a balanced approach to conservation management, considering both short-term and long-term benefits.
The study found that nearly 17% of bird eggs fail to hatch, with endangered species experiencing even higher failure rates. Conservationists can support the recovery of threatened bird species by understanding how different practices affect hatching rates.
Researchers at the University of Adelaide analyzed DNA samples from over 100 retailers across South Australia and found four threatened shark species being sold as flake. The study highlights the need for clearer national guidelines or labelling laws to build trust across the supply chain.
The endangered Amami rabbit plays a key role in dispersing seeds for the non-photosynthetic Balanophora yuwanensis plant. Researchers observed that the rabbit consumed both dry fruits and vegetative tissue from the plant, suggesting it serves as a major seed disperser incentivized by the plant's vegetative tissues.
Research by University of Queensland finds that the Environment Protection and Biodiversity Conservation Act is not effectively protecting threatened habitats. Projects deemed 'significant' or 'not significant' have resulted in similar habitat destruction, highlighting inconsistencies in referral decision-making processes.
Research from Virginia Tech reveals that shark populations are recovering in northern Atlantic waters where regulations have been put in place. This is a promising conservation success story for vulnerable species.
A study found that wind turbines in forests cause common noctules, a threatened bat species, to collide with blades and lose foraging space. The researchers recommend building turbines at least 500 meters away from roosts and compensating for lost habitats elsewhere.