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Invasive Species Current Events and Invasive Species News from Brightsurf

Invasive Species Current Events and Invasive Species News Events, Discoveries and Articles from Brightsurf

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Six new sponge species and new symbiotic associations from the Indonesian coral triangle

Mon, 18 Sep 17 00:06:40 -0700

The Indonesian coral reefs, located in the so-called coral triangle, are considered amongst the richest and most biodiverse places on Earth. Surprisingly, this impressive species diversity is still poorly known. The paper, authored by an international team led by Barbara Calcinai and published in the open access journal ZooKeys, reports the presence of 94 species of sponges, including six new to science and two new symbiotic sponge associations.

Scientists show molecular basis for ants acting as 'bodyguards' for plants

Mon, 18 Sep 17 00:13:30 -0700

Though you might not think of ants as formidable bodyguards, some do an impressive job protecting plants from enemies. Examing the relationship between the Amazon rainforest plant Cordia nodosa in Peru and the ant species Allomerus octoarticulatus, University of Toronto scientists found the degree to which the ants express two genes significantly impacts the amount of protection they provide to their hosts.

When it comes to the threat of extinction, size matters

Mon, 18 Sep 17 00:16:10 -0700

Animals in the Goldilocks zone -- neither too big, nor too small, but just the right size -- face a lower risk of extinction than do those on both ends of the scale, according to an extensive global analysis.

Deep roots in plants driven by soil hydrology

Mon, 18 Sep 17 00:02:30 -0700

Searching for water, some tree roots probe hundreds of feet deep and many trees send roots through cracks in rocks, according to a new study led by a Rutgers University-New Brunswick professor. Moreover, the depth of plant roots, which varies between species and soil conditions, will play a key role in plants' adaptation to climate change, said Ying Fan Reinfelder, a professor in the Department of Earth and Planetary Sciences and Department of Environmental Sciences.

Celebrity fossil reveals all for science

Fri, 15 Sep 17 00:11:00 -0700

With the help of an artist, a geology professor at Lund University in Sweden has figuratively speaking breathed life into one of science's most well-known fossil species; Agnostus pisiformis. The trilobite-like arthropod lived in huge numbers in Scandinavia a half-billion years ago. Today, this extinct species provides important clues for science in several ways.

Once-abundant ash tree and antelope species face extinction -- IUCN Red List

Thu, 14 Sep 17 00:04:00 -0700

North America's most widespread and valuable ash tree species are on the brink of extinction due to an invasive beetle decimating their populations, while the loss of wilderness areas and poaching are contributing to the declining numbers of five African antelope species, according to the latest update of the IUCN Red List of Threatened SpeciesTM. Today's IUCN Red List update also reveals a dramatic decline of grasshoppers and millipedes endemic to Madagascar, and the extinction of the Christmas Island Pipistrelle bat.

Tiny fighters in sediments determine success of invasive marine plants

Thu, 14 Sep 17 00:05:40 -0700

Armies of microbes that are invisible to the naked eye battle it out to determine whether exotic marine plants successfully invade new territory and replace native species, UNSW Sydney-led research shows. The genetic study, which compared microbial communities in sediments associated with an invasive alga and a native seagrass, is the first to test the idea that marine microbes play a critical role in the establishment of invasive marine species.

Light at the end of the tunnel: Restored forest now shelters dozens of endangered species

Thu, 14 Sep 17 00:09:20 -0700

A twenty-year effort to protect and manage tiny remnants of a dilapidated forest in Benin, along with its agricultural and fallow vegetation surroundings, resulted in 14 ha of rich secondary forest, which corresponds to the size of nearly 20 sacred groves. This sanctuary now protects the critically endangered red-bellied monkey together with 52 endangered plant species. The study is published in the open access journal Nature Conservation.

Old fish few and far between under fishing pressure

Thu, 14 Sep 17 00:10:20 -0700

A new study by University of Washington scientists has found that, for dozens of fish populations around the globe, old fish are greatly depleted -- mainly because of fishing pressure. The paper, published online Sept. 14 in Current Biology, is the first to report that old fish are missing in many populations around the world.

Threatened Alabama snail renamed after a case of mistaken identity

Thu, 14 Sep 17 00:10:00 -0700

Confusion surrounding the identity of the Painted Rocksnail, a species listed as federally threatened, has been cleared up after over 100 years of mistaken identity. Dr. Nathan Whelan and his collaborators determined that reports of the Painted Rocksnail outside the Coosa River system in Alabama were misidentifications. They found that the species is rarer and more restricted than previously thought. The study was published in the open access journal ZooKeys.

New research suggests bird songs isolate species

Wed, 13 Sep 17 00:03:40 -0700

Two birds that look the same, but have songs so different they can't recognize each other, should be considered distinct species, suggests new research. Among 72 related populations of Central and South American birds the researchers tested, they found evidence for 21 new species.

South Africa's long-legged bees adapted to pollinate snapdragon flowers

Wed, 13 Sep 17 00:02:30 -0700

New research shows that, in an extraordinary case of adaptation, the disproportionately long front legs of South Africa's oil-collecting Rediviva bee species have evolved in response to the equally long oil-producing spurs of snapdragons.

The evolution of 'true frogs' defies long-held expectations of science

Wed, 13 Sep 17 00:06:20 -0700

New research from the University of Kansas appearing in Royal Society Biology Letters shows, in contrast to expectations, 'the rapid global range expansion of true frogs was not associated with increased net-diversification.'

Song experiments reveal 21 possible new tropical bird species

Wed, 13 Sep 17 00:10:10 -0700

Birds often choose their mates based on song, making it a key factor in separating species. However, analyzing spectrograms can only tell us so much -- the characteristics that birds hone in on when identifying potential mates may not be the same ones scientists notice in audio recordings. A new study from The Auk: Ornithological Advances uses field experiments to 'ask the birds themselves' and uncovers as many as 21 previously unrecognized species.

Earth's oldest trees in climate-induced race up the tree line

Wed, 13 Sep 17 00:13:10 -0700

Bristlecone pine and limber pine trees in the Great Basin region of the western United States are like two very gnarled, old men in a slow-motion race up the mountaintop, and climate change is the starting gun, according to a study from the University of California, Davis. The study shows that the tree line has been steadily moving upslope over the past 50 years in the Great Basin.

Climate change challenges the survival of fish across the world

Wed, 13 Sep 17 00:00:50 -0700

University of Washington researchers have published the first analysis looking at how vulnerable the world's freshwater and marine fishes are to climate change. Their paper, appearing online Sept. 11 in Nature Climate Change, used physiological data to predict how nearly 3,000 fish species living in oceans and rivers will respond to warming water temperatures in different regions.

Why high-fiber diets do not always lead to weight loss

Tue, 12 Sep 17 00:15:50 -0700

In the era of personalized nutrition, there might be value in getting your stool tested and your gut bacteria counted before starting on a new diet. The results can be used to predict whether a particular diet will work for you. This follows a study in the International Journal of Obesity, published by Springer Nature, which shows that the increasingly popular fiber-rich 'New Nordic Diet' might not work for everyone.

Queens control worker reproduction without castration in stingless bee species

Tue, 12 Sep 17 00:05:40 -0700

Study contradicts the view that worker bees are forcibly castrated by the queen among the 600-odd species of stingless bees widely distributed in tropical and subtropical regions of the world.

Do cancer and its treatment affect later pregnancy outcomes?

Tue, 12 Sep 17 00:08:10 -0700

An International Journal of Cancer study found that female survivors of certain types of cancer have higher risks of poor outcomes in pregnancies conceived after diagnosis than women without cancer.

UT faculty member helps identify new species of prehistoric crocodile

Tue, 12 Sep 17 00:00:50 -0700

Around 95 million years ago, a giant relative of modern crocodiles ruled the coastlines and waterways of what would one day become north central Texas. A team including the University of Tennessee, Knoxville's Stephanie Drumheller-Horton has identified this species, Deltasuchus motherali.

Successful transcatheter treatment of severe cardiac failure, a world first

Mon, 11 Sep 17 00:08:40 -0700

The Cardiovascular Surgery Group at Osaka University performed a transcatheter mitral valve implantation in dysfunctional artificial valves in severe cardiac failure patients with prosthetic valve dysfunction.

Desert locusts: New risks in the light of climate change

Mon, 11 Sep 17 00:08:00 -0700

The desert locust is an invasive species that is both well known and feared because of the large-scale agricultural damage it can cause. It is particularly closely monitored, to prevent the risks of outbreaks and invasions. Climate change could modify its distribution area, meaning a new threat to agriculture, according to a study published in the journal Global Change Biology by researchers from CIRAD and INRA.

A biosensor detects adulteration of horse in beef meat within 1 hour

Mon, 11 Sep 17 00:10:00 -0700

Fraud in meat products has become, in recent years, a battle of the food industry and public health. Although there are numerous strategies to detect it, they are not sufficiently selective and sensitive to differentiate close animal species. A collaboration of the Faculties of Chemistry and Biology of the Complutense University of Madrid has developed an electrochemical biosensor capable of detecting, in just one hour, processes of adulteration of beef with horse meat.

MSU biologist learned what Przewalski's horse ate more than a century ago

Mon, 11 Sep 17 00:09:40 -0700

A scientist from the Lomonosov Moscow State University's Faculty of Biology together with her colleagues has explained the changes in modern Przewalski's horses' food reserve (diet) that have occurred since the end of the 19th century. The results were published in the Scientific Reports journal.

Biodiversity just as powerful as climate change for healthy ecosystems

Mon, 11 Sep 17 00:14:00 -0700

Biodiversity is proving to be one of humanity's best defenses against extreme weather. In past experiments, diversity has fostered healthier, more productive ecosystems, like shoreline vegetation that guards against hurricanes. However, many experts doubted whether these experiments would hold up in the real world. A study in this week's issue of Nature offers a decisive answer: biodiversity's power in the wild surpasses experimental predictions, in some cases topping even effects of climate.

Study examines use of systolic blood pressure at time of primary percutaneous coronary intervention

Mon, 11 Sep 17 00:14:10 -0700

Researchers have led a retrospective single-center study examining simple hemodynamic parameters obtained at the time of cardiac catheterization to predict in-hospital mortality following ST-elevation myocardial infarction (STEMI). Current 30-day mortality rates for patients with STEMI range from 2.5% to 10%, and 10.5%-24% of those patients require mechanical hemodynamic support.

Birds' unique skulls linked to young dinosaur brains

Mon, 11 Sep 17 00:02:40 -0700

Bird skulls and brains look like those of young dinosaurs, providing clues to their unique evolution and modern success.

Fathers can influence the sex of their offspring, scientists show

Mon, 11 Sep 17 00:02:00 -0700

It has traditionally been thought that in mammals only mothers are able to influence the sex of their offspring. But a new study in wild mice led by Dr Aurelio Malo of Oxford University's Department of Zoology has shown that fathers can, in fact, influence sex ratios.

Coffee and bees: New model of climate change effects

Mon, 11 Sep 17 00:08:00 -0700

Areas in Latin America suitable for growing coffee face predicted declines of 73-88 percent by 2050. But bee species diversity may save the day, even if many species in cool highland regions are lost as the climate warms.

Biding time could improve conservation outcomes

Mon, 11 Sep 17 00:14:10 -0700

Strategic delays in conservation efforts could be the key to protecting more species according to researchers at the University of Queensland. The new study found instead of spending project funds immediately, conservation organizations could use the right amount of delay to improve the benefits achieved from their funding by focusing first on investment, capacity building, or monitoring and research.

Who is eating who? How climate change is modifying fish predator prey interactions

Fri, 08 Sep 17 00:07:50 -0700

Climate change is expected to have many impacts on the oceans; one of them is where fish are located in the ocean. Ocean warming is expected to cause fish to shift to different locations that are cooler -- generally toward the poles and into deeper waters. But not all fish are moving in the same directions and at the same speeds. This is changing what fish are eating and who are eating them.

Birds are on the move in the face of climate change

Thu, 07 Sep 17 00:07:50 -0700

Research on birds in northern Europe reveals that there is an ongoing considerable species turnover due to climate change and due to land use and other direct human influences.

A tiny device offers insights to how cancer spreads

Thu, 07 Sep 17 00:09:50 -0700

Researchers developed a new type of microfluidic device that can cultivate cells for longer periods of time, better reflecting how cancer cells to change over time. The device allowed them to capture the leader cells that would be first to break away and cause metastasis.

Hidden Inca treasure: Remarkable new tree genus discovered in the Andes

Thu, 07 Sep 17 00:11:00 -0700

Hidden in plain sight -- that's how researchers describe their discovery of a new genus of large forest tree commonly found, yet previously scientifically unknown, in the tropical Andes. Researchers from the Smithsonian and Wake Forest University detailed their findings in a study just released the journal PhytoKeys.

New dental imaging method uses squid ink to fish for gum disease

Thu, 07 Sep 17 00:14:20 -0700

Squid ink could one day make getting checked for gum disease at the dentist less tedious and even painless. By combining squid ink with light and ultrasound, a team led by engineers at the University of California San Diego has developed a new dental imaging method to examine a patient's gums that is noninvasive, more comprehensive and more accurate than the state of the art.

Australian Magpie 'dunks' its food before eating, researchers find

Thu, 07 Sep 17 00:13:50 -0700

Scientists at the University of York, in collaboration with researchers at Western Sydney University, have shown that the Australian Magpie may 'dunk' its food in water before eating, a process that appears to be 'copied' by its offspring.

The sand trap: Demand outpaces caution -- and knowledge

Thu, 07 Sep 17 00:07:40 -0700

Sand, spanning miles of beaches, carpeting vast oceans and deserts, is a visual metaphor for limitless resources. Yet researchers in this week's journal Science seize another metaphor -- sand in an hourglass, marking time running out.

Immune cells halt fungal infection by triggering spore suicide

Thu, 07 Sep 17 00:07:00 -0700

To protect the body from infection, immune cells in the lungs can exploit cell death programs in inhaled fungal pathogens, scientists have revealed, helping explain why most people aren't harmed by breathing in mold spores, and potentially offering new therapeutic strategies for people who do get infected.

Monarch butterflies disappearing from western North America

Thu, 07 Sep 17 00:08:10 -0700

Monarch butterfly populations from western North America have declined far more dramatically than was previously known and face a greater risk of extinction than eastern monarchs, according to a new study in the journal Biological Conservation.

New porcelain crab species from Colombia named

Thu, 07 Sep 17 00:08:20 -0700

New, hairy-clawed porcelain crab species discovered in the southern Caribbean.

Will mallards hybridize their cousins out of existence?

Wed, 06 Sep 17 00:03:30 -0700

Mallards -- the familiar ducks of city parks -- are one of a group of closely related species, many of which are far less common. Interbreeding can threaten the genetic distinctiveness of those other species and cause concern for their conservation. A new study investigates hybridization between mallards and mottled ducks, a species adapted for life in coastal marshes, and finds that while hybridization rates are currently low, human activity could cause them to rise in the future.

Aussie quantum tech has its sights set on human biochemistry

Wed, 06 Sep 17 00:08:30 -0700

Australian scientists have developed a new tool for imaging life at the nanoscale that will provide new insights into the role of transition metal ions such as copper in neurodegenerative diseases.

Biologists from MSU discovered the carotenoid transfer between 2 proteins

Wed, 06 Sep 17 00:08:50 -0700

Specialists from the biological faculty of Moscow State University have studied the way the photoactive orange carotenoid protein (OCP) exchanges carotenoid with proteins of similar structure. The discovery will boost the development of OCP-based antioxidant drugs aimed at protecting healthy cells during cancer treatment. The paper was published in the Biophysical Journal.

Breakthrough study reveals new diagnosis for Alzheimer's

Wed, 06 Sep 17 00:10:10 -0700

In the largest and most conclusive study of its kind, researchers have analyzed blood samples to create a novel and non-invasive way of helping to diagnose Alzheimer's disease and distinguishing between different types of neurodegenerative disorders. Following this breakthrough discovery, Alzheimer's sufferers may now have an additional test to improve the accuracy of diagnosis in order to better tailor appropriate treatment.

Due to climate change, one-third of animal parasites may be extinct by 2070

Wed, 06 Sep 17 00:03:20 -0700

The Earth's changing climate could cause the extinction of up to a third of its parasite species by 2070, according to a global analysis reported Sept. 6 in the journal Science Advances. Parasite loss could dramatically disrupt ecosystems, and the new study suggests that they are one of the most threatened groups of life on Earth.

18th century nautical charts document historic loss of coral reefs

Wed, 06 Sep 17 00:03:00 -0700

Researchers studying 18th century British nautical charts tracked the loss of coral reef habitat in the Florida Keys over the last two centuries. According to their analysis, entire sections of reef near the shore that were present prior to European settlement are now largely gone.

Blood is thicker than water for the common reed -- At least that's what the soil tells us

Tue, 05 Sep 17 00:13:30 -0700

Northeastern University Professor Jennifer Bowen and University of Rhode Island Professor Laura Meyerson published a paper in Nature Communications on the native and invasive species of common reed Phragmites australis.

'Bee' informed: Public interest exceeds understanding in bee conservation

Tue, 05 Sep 17 00:01:10 -0700

Many people have heard bee populations are declining due to such threats as colony collapse disorder, pesticides and habitat loss. And many understand bees are critical to plant pollination. Yet, according to a study led by Utah State University ecologist Joseph Wilson, few are aware of the wide diversity of bees and other pollinators beyond such species as honeybees. Because conservation efforts require substantial public support, outreach is needed to help people understand bee declines and how to protect pollinators.

An overlooked and rare new gall-inducing micromoth from Brazil

Tue, 05 Sep 17 00:03:10 -0700

A new species and genus of primitive micromoth from the Brazilian Pampa biome induces hardly noticeable galls on the stems of the Uruguayan pepper tree. In their turn, these galls attract various parasitoids and inquiline wasps. While free-living gall moths are generally rare, the studied genus pupates on the ground, resulting in its being overlooked for over a century. Now, it is formally described in the open-access journal ZooKeys.