Exotic Species News
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Does DNA in the water tell us how many fish are there?
on July 3, 2020 at 1:49 pm
Researchers have developed a new non-invasive method to count individual fish by measuring the concentration of environmental DNA in the water, which could be applied for quantitative monitoring of aquatic ecosystems.
New species described in 2020
on July 1, 2020 at 2:00 pm
It is estimated that 15 million different species live on our planet, but only 2 million of them are currently known to science. Discovering new species is important as it helps to protect them. Furthermore, new species can also produce compounds that could lead to the development of new medicine.
As wildfires flare up across West, research highlights risk of ecological change
on July 1, 2020 at 12:58 am
Following high-severity fire, scientists have found forest recovery may increasingly be compromised by lack of tree seed sources, warmer and drier post-fire climate and more frequent reburning.
Microscope allows gentle, continuous imaging of light-sensitive corals
on June 30, 2020 at 8:15 pm
Many corals are sensitive to bright light, so capturing their dynamics with traditional microscopes is a challenge. To work around their photosensitivity, researchers developed a custom light-sheet microscope (the L-SPI) that allows gentle, non-invasive observation of corals and their polyps in detail over eight continuous hours, at high resolution.
Goodbye northwestern crow, hello Mexican duck
on June 30, 2020 at 11:20 am
The latest supplement to the American Ornithological Society's Checklist of North and Middle American Birds includes several major updates to the organization of the continent's bird species, including the addition of the Mexican Duck and the removal of the Northwestern Crow. The official authority on the names and classification of the region's birds, the checklist is consulted by birdwatchers and professional scientists alike and has been published since 1886.
Researchers look for answers as to why western bumblebees are declining
on June 29, 2020 at 8:41 pm
The decline of the Western bumblebee is likely not limited to one culprit but, instead, due to several factors that interact such as pesticides, pathogens, climate change and habitat loss.
International team of scientists warns of increasing threats posed by invasive species
on June 26, 2020 at 8:12 pm
A new study describes the proliferation of alien invasive species and the dangers they pose.
Native bees' exotic origins reveal cross-pollination
on June 26, 2020 at 3:48 pm
Ancestors of a distinctive pollinating bee found across Australia probably originated in tropical Asian countries, islands in the south-west Pacific or greater Oceania region, ecology researchers claim. Describing the likely dispersal corridor for the ancestral lineage of the bee genus Homalictus will help understand the social evolution of the vibrant halictine bees, researchers say.
Non-tobacco plant identified in ancient pipe for first time
on June 26, 2020 at 3:48 pm
People in what is now Washington State were smoking Rhus glabra, a plant commonly known as smooth sumac, more than 1,400 years ago. The discovery marks the first-time scientists have identified residue from a non-tobacco plant in an archeological pipe.
Climate extremes will cause forest changes
on June 25, 2020 at 3:59 pm
No year has been as hot and dry as 2018 since climate records began. Central European forests showed severe signs of drought stress. Mortality of trees triggered in 2018 will continue for several years.
Habitat for Rattlesnakes: Sunnier but Riskier
on June 24, 2020 at 9:20 pm
Conservation efforts that open up the canopy of overgrown habitat for threatened timber rattlesnakes are beneficial to snakes but could come at a cost, according to a new study.
Adirondack boreal peatlands near southern range limit likely threatened by warmer climate
on June 24, 2020 at 7:15 pm
A study documents an invasion happening in the Adirondacks: the black spruce, tamarack, and other boreal species are being overcome by trees normally found in warmer, more temperate forests. Ultimately, researchers predict that these invaders could overtake a variety of northern species, eliminating trees that have long been characteristic of wetlands like Shingle Shanty Preserve in the Adirondacks.
Environmental DNA detection could cut pathogens in pet trade
on June 24, 2020 at 12:27 pm
As the SARS-CoV-2 puts new focus on zoonotic pathogens, a researcher has developed a method to use environmental DNA (eDNA) to detect disease in the vast international trade of aquatic animals.
Airborne mapping sheds light on climate sensitivity of California redwoods
on June 23, 2020 at 6:53 pm
To better understand redwood habitat suitability, a team of researchers combined high-resolution redwood distribution maps with data on moisture availability to identify the environmental factors that shape redwood distribution.
Undergraduate student discovers 18 new species of aquatic beetle in South America
on June 22, 2020 at 5:30 pm
An undergraduate student has just published a description of 18 new species of aquatic water beetle from the genus Chasmogenus.
When planting trees threatens the forest
on June 22, 2020 at 5:30 pm
The first-of-its-kind study reveals that subsidies for the planting of commercially valuable tree plantations in Chile resulted in the loss of biologically valuable natural forests and little, if any, additional carbon sequestration.
Protecting natural forest in oil palm plantations crucial for conservation
on June 22, 2020 at 5:29 pm
A study has found that patches of protected forest on oil palm plantations play an important role in helping to conserve endangered species including hornbill birds and dipterocarp trees.
Forest loss escalates biodiversity change
on June 18, 2020 at 7:02 pm
New international research reveals the far-reaching impacts of forest cover loss on global biodiversity.
Innovation by ancient farmers adds to biodiversity of the Amazon
on June 18, 2020 at 4:01 pm
Innovation by ancient farmers to improve soil fertility continues to have an impact on the biodiversity of the Amazon, a major new study shows.
Catastrophic disease events in marine mammals mostly caused by viruses
on June 18, 2020 at 11:35 am
Viruses were responsible for 72 percent of these events and caused 20 times the number of deaths than bacterial outbreaks.