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Search results for “Endangered Species”

1,000+ results for "Endangered Species"

Mapping trees can help count endangered lemurs

A study led by Duke University estimates total population sizes and geographic ranges for 19 lemur species across Madagascar using trees as a proxy. The findings suggest that not all lemurs are endangered, with some species having healthy populations remaining, while others face significant declines due to habitat loss and hunting.

SourceDuke University·JournalJournal of Biogeography·DateAug 30, 2018

Remote islands harbor higher numbers of non-native species

Research by an international team from the University of Vienna reveals that remote islands have higher numbers of non-native species, which can lead to extinction events and threaten unique island species. The study found that isolation from the mainland increases the number of non-native species, while native species decline.

SourceUniversity of Vienna·JournalProceedings of the National Academy of Sciences·DateAug 28, 2018

Rhino sperm from the cold

Scientists have developed a new cryoprotective mixture that significantly improves the motility of frozen rhinoceros sperm after thawing. The new mixture has been successfully tested with sperm samples from three rhino species and shows potential for increasing the success rate of artificial insemination.

SourceForschungsverbund Berlin·JournalPLOS ONE·DateJul 11, 2018

How competition and cooperation between bacteria shape antibiotic resistance

New computational simulations suggest that antibiotic treatment can suppress resistant species via attack on sensitive partner species in mutualistic relationships, and spatial arrangement influences cross-protection. The study found that competing species are more susceptible to suppression than mutually interacting species.

SourcePLOS·JournalPLOS Computational Biology·DateJun 21, 2018

Thousands of turtles netted off South America

New research reveals tens of thousands of sea turtles are caught each year by small-scale fishers off South America's Pacific coast, with over 16,000 killed. The study highlights Ecuador and Peru as key places to tackle this issue, which threatens critically endangered species like leatherbacks and hawksbills.

SourceUniversity of Exeter·JournalFisheries Research·DateJun 5, 2018

Critically endangered South American forests were man made

A new study reveals that ancient communities in South America, particularly the Southern Jê people, played a significant role in expanding the critically endangered Araucaria forests between 1,410 and 900 years ago. The forests, which date back to the time of dinosaurs, were initially established on grasslands and expanded into highlan...

SourceUniversity of Exeter·JournalScientific Reports·DateMay 17, 2018

Protect forest elephants to conserve ecosystems, not DNA

Forest elephant populations across Central Africa exhibit genetic similarity, highlighting the importance of conserving this critically endangered species. Conservation efforts can save many species by protecting one, as forest elephants play a vital role in maintaining plant diversity and ecosystem balance.

Chance is a factor in the survival of species

A recent study by Lund University found that chance plays a significant role in local species survival, sometimes overriding conservation initiatives. The researchers also discovered negative frequency-dependence, which counteracts the role of chance and helps rare species recover.

SourceLund University·JournalThe American Naturalist·DateMar 26, 2018

Reducing collateral damage

A new UC Santa Barbara-led study found that ending overfishing can promote population recoveries for many endangered species caught incidentally as bycatch. In about half the cases, overexploiting these mammals, turtles and birds occurs because we're also overexploiting the target species.

Biodiversity loss raises risk of 'extinction cascades'

New research shows that biodiversity loss can lead to a domino effect of further extinctions, where the removal of one species creates a gap for other species to fill. This can result in simpler ecological communities at greater risk of extinction cascades with potential losses of many species.

SourceUniversity of Exeter·JournalProceedings of the National Academy of Sciences·DateFeb 19, 2018

New alien species invasions still rising globally

A new study reveals that up to 16% of Earth's species could qualify as potential alien species, posing significant challenges to biosecurity efforts. The research found that the number of newly emerging alien species continues to rise, with insects and molluscs being the groups most affected.

SourceUniversity College London·JournalProceedings of the National Academy of Sciences·DateFeb 5, 2018

It's good to be rare, for some species

Researchers from UC Davis predict certain traits, such as internal fertilization and long-distance mating signals, can help rare species persist during crises. These traits may provide advantages for chronically rare species when compared to more common species that are likely to face extinction during great extinction events.

SourceUniversity of California - Davis·JournalEcology Letters·DateDec 5, 2017