Exotic Species News
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Tree cavities for wild honeybees
on December 11, 2019 at 3:02 pm
The forests in Europe provide habitat for around 80,000 colonies of wild honeybees. That is why more attention should be paid to preserving the nesting sites for these threatened insects, according to researchers.
Killer whale grandmothers boost survival of calves
on December 9, 2019 at 9:13 pm
New research finds that killer whale grandmothers who were no longer able to reproduce had the biggest beneficial impact on the survival chances of their grand-offspring. This may be because grandmothers without calves of their own are free to focus time and resources on the latest generation, the researchers suggest.
Scientists accidentally discover a new water mold threatening evergreen trees
on December 9, 2019 at 9:13 pm
Grown as Christmas trees, Fraser firs are highly prized for their rich color and pleasant scent as well as their ability to hold their needles. Unfortunately, they are also highly susceptible to devastating root rot diseases caused by water molds in the genus Phytophthora.
Scientists at the California Academy of Sciences describe 71 new species in 2019
on December 5, 2019 at 8:58 pm
From geckos to goblin spiders, flowering plants, and Mediterranean ants -- spanning five continents and three oceans -- these 71 new species described by Academy scientists grow Earth's tree of life.
Wildlife in tropics hardest hit by forests being broken up
on December 5, 2019 at 7:17 pm
Tropical species are six times more sensitive to forests being broken up for logging or farming than temperate species, says new research.
Bats may benefit from wildfire
on December 5, 2019 at 7:14 pm
Bats face many threats -- from habitat loss and climate change to emerging diseases, such as white-nose syndrome. But it appears that wildfire is not among those threats.
Changing wildfires in the California's Sierra Nevada may threaten northern goshawks
on December 5, 2019 at 2:14 pm
Research suggests fire, as it becomes more frequent and severe, poses a substantial risk to goshawks in the Sierra Nevada region.
Untangling the branches in the mammal tree of life
on December 4, 2019 at 7:58 pm
Researchers have unveiled a complete overhaul of the way species data is brought together and analyzed to construct an evolutionary tree of life for mammals. It's aimed at giving scientists, conservation managers, policymakers, and environmentalists more accurate, comprehensive information about species diversity and relationships, past and present.
Protected habitats near US borders
on December 4, 2019 at 7:49 pm
The clustering of protected habitats in the Americas near international borders makes many iconic, wide-ranging animals physically dependent on good relations between neighboring countries and wildlife-friendly borders.
Looking at tropical forests through new eyes
on December 4, 2019 at 7:49 pm
Air-based maps of plant chemistry are improving carbon cycling models in hyper-diverse tropical forests.
Most of America's national parks are facing a grave and immediate threat
on December 3, 2019 at 1:29 pm
More than half of America's national parks are facing a grave and immediate threat: the ongoing presence and spread of invasive animal species. The National Park Service has taken the first step in combating this invasion by asking a group of experts to help chart a course that will ensure the survival of these national treasures.
Integrated approach for managing aquatic invasive species in california
on December 3, 2019 at 12:04 am
Though small and somewhat nondescript, quagga and zebra mussels pose a huge threat to local rivers, lakes and estuaries. Thanks to aggressive measures to prevent contamination, Santa Barbara County's waters have so far been clear of the invasive mollusks, but stewards of local waterways, reservoirs and water recreation areas remain vigilant to the possibility of infestation by these and other non-native organisms.
New evolutionary insights into the early development of songbirds
on December 2, 2019 at 3:55 pm
An international team has sequenced a chromosome in zebra finches called the germline-restricted chromosome (GRC). This chromosome is only found in germline cells, the cells that hold genetic information which is passed on to the next generation. The researchers found that the GRC is tens of millions of years old and plays a key role in songbird biology, having collected genes used for embryonic development.
Oyster deaths: American slipper limpet is innocent
on November 27, 2019 at 9:13 pm
Researchers have managed to shine some light on the decline in numbers of the European oyster. They have concluded that the occurrence of the invasive American slipper limpet (Crepidula fornicata) is not one of the main causes for the European oyster dying out -- unlike previously assumed.
Nearly 40% of plant species are very rare and are vulnerable to climate change
on November 27, 2019 at 9:12 pm
Almost 40 percent of global flora is categorized as 'exceedingly rare,' and these species are most at risk of extinction by human development and as the climate continues to change, according to new research.
Habitat restoration alone not enough to support threatened caribou
on November 27, 2019 at 2:01 pm
New research suggests restoring habitat may not be enough to save threatened woodland caribou -- an iconic animal that's a major part of boreal forests in North America and a key part of the culture and economy of many Indigenous peoples in Canada.
Woody plants with undesirable tendencies
on November 27, 2019 at 2:39 am
A weed is normally defined as a plant, native or non-native, that is not valued where it is growing. An invasive species is generally defined as a species that not only spreads geographically outside its typical range but also has a proclivity for displacing native flora and fauna. People are encouraged to not stereotype native or non-native plants, but rather to suggest that people should consider a species for its individual merits and shortcomings, regardless of its geographic origin.
A little prairie can rescue honey bees from famine on the farm
on November 25, 2019 at 8:30 pm
Scientists placed honey bee hives next to soybean fields in Iowa and tracked how the bees fared over the growing season. To their surprise, the bees did well for much of the summer. The colonies thrived and gained weight. But in August, the trend reversed. By mid-October, most of the honey was gone and the overwintering brood was malnourished, the team discovered. Placing the hives near restored prairies late in the season rescued them.
Climate change is reshaping communities of ocean organisms
on November 25, 2019 at 5:10 pm
Climate change is reshaping communities of fish and other sea life, according to a pioneering study on how ocean warming is affecting the mix of species. The study covers species that are important for fisheries and that serve as food for fish, such as copepods and other zooplankton.
Wildfires in Oregon's blue mountains to become more frequent, severe due to climate change
on November 21, 2019 at 11:39 pm
Under a warming climate, wildfires in Oregon's southern Blue Mountains will become more frequent, more extensive and more severe, according to a new study.