New York, Jan 21, 2017: The poop of some of the ancient huge and astonishing creatures that once roamed Australia has indicated that the primary cause of their extinction was humans, not climate change.
Led by Monash University in Victoria and the University of Colorado Boulder, a team of researchers used information from a sediment core which had spores from a fungus called Sporormiella that thrived on the dung of plant-eating mammals.
The study, published in journal Nature Communications, was led by Sander van der Kaars of Monash University and professor Gifford Miller from University of Colorado Boulder.
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“The sediment core allowed scientists to look back in time, in this case more than 150,000 years, spanning Earth’s last full glacial cycle,” said Miller.
“Fungal spores from plant-eating mammal dung were abundant in the sediment core layers from 150,000 years ago to about 45,000 years ago, when they went into a nosedive,” added Miller.
The ocean sediment core showed the southwest is one of the few regions on the Australian continent that had dense forests both 45,000 years ago and today, making it a hotbed for biodiversity.
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“Because of the density of trees and shrubs, it could have been one of their last holdouts some 45,000 years ago. There is no evidence of significant climate change during the time of the megafauna extinction,” Miller noted, suggesting that the extinction may have been caused by “imperceptible overkill.”
A 2006 study by Australian researchers indicated that even low-intensity hunting of Australian megafauna could have resulted in the extinction of a species in just a few hundred years.
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“The results of this study are of significant interest across the archaeological and Earth science communities who are fascinated by now extinct giant animals that roamed the planet — and the cause of their extinction — as our own species began its persistent colonization of Earth,” said van der Kaars. (IANS)
Vermont, September 30, 2017 : What if we tell you that a team of researchers has recognized and named 15 new species of spiders in the Caribbean after your favorite stars like Leonardo DiCaprio, Barack Obama and Bernie Sanders?
Not in Hollywood, Washington, DC or Vermont – but you might now be able to catch a glimpse of Spintharus davidattenboroughi, S. barackobamai, S, michelleobamaae, S. berniesandersi, S. davidbowiei along with S. leonardodicaprioi on the Caribbean islands and some other southern spots.
Ingi Agnarsson, expert of spiders and professor of biology at University of Vermont, who led the new study revealed the rationale behind the undergraduate study and on choosing the intriguing names. “(We) wanted to honor people who stood up for both human rights and warned about climate change—leaders and artists who promoted sensible approaches for a better world”, he said.
Popularly recognized as a global hotspot for biodiversity, there continues to be several species in the Caribbean that are outside the spectrum of research and study. This includes the ‘smiley faced’ spider in the genus Spintharus- named for a smiley face pattern on their abdomens.
Previously recognized as one widespread species, researchers from the UVM discovered that there exist many more endemic species within the genus, 15 of which have been recognized in the research.
These samples were collected from Florida, South Carolina, Mexico, the Dominican Republic, Puerto Rico, Cuba, Jamaica, Mexico, the Lesser Antilles and Columbia.
Each team member got to decide names for the new species of spiders. Alongside naming them after friends and family members, many species have been named after distinguished figures.
“We all named the Bernie Sanders spider together,” said Lily Sargeant, one of the students who worked on the project. “We all have tremendous respect for Bernie. He presents a feeling of hope.”
Named after the great artist David Bowie, who passed away in 2016. His music will continue to inspire generations and the authors decided to honor his legacy by naming a spider in his name.
Named after the widely popular, and largely loved, former President of the United States Barack Obama. The authors love him for his statesmanship and humanitarianism, and named the spider species after him, to honor their president and his devoted service.
Named in honor of the Former First Lady of the United States for her poise, confidence and elegance, her fight for human rights and for always striving to uphold the principles of justice, fairness and equality for all.
The authors of the research also named a species of spiders after the naturalist and broadcaster Sir David Attenborough, to recognize and celebrate his efforts to educate people of the wonders of the natural world and sowing a seed of caring for nature in humanity.
The study has been published in the Zoological Journal of the Linnean Society.
Google on Sunday announced the integration of Brazil’s indigenous territories into its maps
Most of these territories are in the rapidly-changing Amazon region, the largest and most biodiverse tract of tropical rainforest in the world
Google Maps and Earth now represent Brazilian indigenous territory labels and borders in a way that reflects the landscapes known to the local communities
New York, July 31, 2017: In a bid to prevent deforestation and preserve culture, Google on Sunday announced the integration of Brazil’s indigenous territories into its maps.
In partnership with Fundacao Nacional do Indio (FUNAI), Brazil’s governmental agency overseeing indigenous affairs, Google Maps and Earth now represent Brazilian indigenous territory labels and borders in a way that reflects the landscapes known to the local communities.
“On Google Maps and Earth, you can now see the names of certified indigenous territories in Brazil, search for indigenous territories using the name of the ethnic group living there and see how forests are maintained in these areas compared to other parts of the Amazon,” Raleigh Seamster, Program Manager, Google Earth Outreach, said in a blog post.
Brazilhas one of the world’s most diverse populations, with more than 500,000 indigenous people living on 472 territories certified by the government — representing 13 per cent of Brazil’s total land.
Most of these territories are in the rapidly-changing Amazon region, the largest and most bio-diverse tract of tropical rain-forest in the world.
Deforestation has had a devastating effect on indigenous people and the local economy, destroying biodiversity, and contributing to greenhouse gas emissions.
Google said that integrating indigenous territories into its maps is an essential step in accurately reflecting the world and showing how the indigenous communities play an important role in preserving the natural biodiversity and cultural richness of the Brazilian Amazon.
“By defining Brazil’s indigenous territories we can show the world the role these communities play in maintaining global socio-biodiversity,” Artur Nobre, Presidential Advisor, FUNAI, said in a statement.
This update builds on other work by Google Earth Outreach to support cultural preservation and land management.
A similar update was announced earlier this month for Canada. (IANS)
Depending on the location, the proliferation of IS has drawn varied resistance from the Afghan military, U.S. air support and ground troops, local militias, Taliban forces and other militant groups
Afghan army planes on Wednesday night accidentally air dropped vital supplies of food and water to IS militants in the Darzab district of northern Jouzjan province instead of to their own besieged troops
In the Tora Bora area, where IS has made a strong stand in recent days, local villagers and militias joined with Taliban to rout IS
June 25, 2017: The Islamic State group is rapidly expanding in parts of Afghanistan, advancing militarily into areas where it once had a weak presence and strengthening its forces in core regions, according to Afghan and U.S. officials.
Depending on the location, the proliferation of IS has drawn varied resistance from the Afghan military, U.S. air support and ground troops, local militias, Taliban forces and other militant groups.
Attacking IS has become such a priority in the country, that disparate forces sometimes join together in the ad-hoc fight, with Afghan and U.S. forces finding themselves inadvertently supporting the enemy Taliban in battling IS.
Confusion leads to mistakes
All too often, officials say, mistakes are made due to confusion on the ground.
Afghan army planes on Wednesday night accidentally air dropped vital supplies of food and water to IS militants in the Darzab district of northern Jouzjan province instead of to their own besieged troops, provincial police chief, Rahmatullah Turkistani told VOA. The supplies were meant to help Afghan forces that are countering twin attacks by IS and Taliban militants but were used instead by IS.
“It’s not getting better in Afghanistan in terms of IS,” U.S. Chief Pentagon Spokeswoman Dana White told VOA this week. “We have a problem, and we have to defeat them and we have to be focused on that problem.”
Reinforcements for the IS cause reportedly are streaming into isolated areas of the country from far and wide. There are reports of fighters from varied nationalities joining the ranks, including militants from Pakistan, India, Iran, Iraq, Syria, Russia and Central Asian neighbors.
Still, the Islamic State-Khorasan (ISK) as IS is known in Afghanistan remains a fragmented group composed of differing regional forces with different agendas in different parts of the country.
“IS-K is still conducting low-level recruiting and distribution of propaganda in various provinces across Afghanistan, but it does not have the ability or authority to conduct multiple operations across the country,” a recent Pentagon report said. But where it operates, IS is inflicting chaos and casualties and causing confusing scenarios for disparate opponents.
In the Tora Bora area, where IS has made a strong stand in recent days, local villagers and militias joined with Taliban to rout IS. IS regained ground after a few days, leading to U.S. military air attacks on IS positions in conjunction with Afghan intelligence instructions and army operations.
IS fighters reportedly have fled from mountain caves of Tora Bora, where al-Qaida’s leader Osama bin Laden hid from U.S. attack in 2001.
IS fighters were also reportedly advancing in neighboring Khogyani district, displacing hundreds of families, according to district officials. It is one of several areas in Nangarhar province, near the Pakistani border, where IS has been active for over two years.
Fierce clashes in the Chaparhar district of Nangarhar last month left 21 Taliban fighters and seven IS militants dead, according to a provincial spokesman. At least three civilians who were caught in the crossfire were killed and five others wounded.
“IS has overpowered Taliban in some parts of Nangarhar because the Taliban dispatched its elite commando force called Sara Qeta (Red Brigade) to other parts of the country, including some northern provinces to contain the growing influence of IS there,” Wahid Muzhda, a Taliban expert in Kabul, told VOA.
IS has also expanded in neighboring Kunar province, where, according to provincial police chief, it has a presence in at least eight districts and runs a training base, where foreign members of IS, train new recruits.
Hundreds of miles from Nangarhar, IS is attempting to establish a persistent presence in several northern provinces where it has found a fertile ground for attracting militants and recruiting unemployed youths, mostly between the age of 13 and 20.
IS has been able to draw its members from the Pakistani Taliban fighters, former Afghan Taliban, and other militants who “believe that associating with or pledging allegiance” to IS will further their interests, according to the Pentagon report.
Hundreds of militants have joined IS ranks in northern Jouzjan and Sar-e-Pul province where local militant commanders lead IS-affiliate groups in several districts.
Qari Hekmat, an ethnic Uzbek and former Taliban militant who joined IS a year ago, claims to have up to 500 members, including around 50 Uzbek nationals who are affiliated with the Islamic Movement of Uzbekistan (IMU) — previously associated with al-Qaida and Taliban in Afghanistan.
IS and Taliban are reportedly fighting over the control of Darzab district in Jouzjan which they stormed this week from two different directions and besieged scores of government forces. The Taliban has reportedly captured the center of the district while IS militants control the city outskirts.
Afghanistan faces a continuing threat from as many as 20 insurgent and terrorist networks present or operating in the Afghanistan-Pakistan region, including IS, the Pentagon said.
“In areas where the government has limited influence and control, IS attempts to emerge and expand there,” Ateequllah Amarkhail, an analysts and former Army general in Kabul told VOA.
IS has also claimed responsibility for several recent attacks in urban areas, however, with a hit-and-hide strategy that is proving effective. And it is engaging too in more skirmishes with U.S. forces that initially were sent to the country to help Afghan forces halt the spread of Taliban.
Three American service members based in eastern Afghanistan were killed in April during operations targeting IS militants, according to the Pentagon.
“ISIS-K remains a threat to Afghan and regional security, a threat to U.S. and coalition forces, and it retains the ability to conduct high-profile attacks in urban centers,” the Pentagon said. (VOA)