Tuesday, August 31, 2021

Minnesota Sea Grant launches egg-to-market yellow perch project


Project aims to develop producer-scale methods for raising Yellow Perch fish from egg to market size using a recirculating aquaculture system (RAS)

Grant and Award Announcement

UNIVERSITY OF MINNESOTA

Yellow Perch 

IMAGE: YELLOW PERCH. view more 

CREDIT: IMAGE CREDIT: ROBERT COLLETTA/U.S.DEPARTMENT OF AGRICULTURE, AGRICULTURAL RESEARCH SERVICE.

“Many Minnesota fish farmers are looking for a species that has a much higher market value than Tilapia; Yellow Perch might fill that niche,” said Amy Schrank, MNSG fisheries and aquaculture extension educator and project lead. “Minnesota Sea Grant has been actively engaged with Minnesota fish farmers since 2017 and raising Yellow Perch is one of the problems they asked us for help with.”

Yellow Perch, also known as Lake Perch, has a mild, sweet flavor with firm, flaky white flesh. They are highly sought after by ice anglers, according to the Minnesota Department of Natural Resources. 

“Consistent availability of juvenile Yellow Perch, called fingerlings, has limited Yellow Perch aquaculture in Minnesota and the Great Lakes region and these limitations became more severe during the COVID-19 pandemic,” said Schrank.  

MNSG’s Yellow Perch project is funded by a $134,879 grant from the National Sea Grant Office and is one of 13 nationwide projects designed to address ongoing and long-term impacts associated with the COVID-19 pandemic on seafood resources, including aquaculture and the connection between aquaculture and wild-caught fisheries.

“We are partnering with a Yellow Perch producer from Minnesota to compare methods and costs of rearing Yellow Perch in two different styles of indoor, biosecure production systems,” said Schrank. “We will compare fish growth, mortality rates, and production costs between systems for both fingerling and market-size fish.” 

The two types of indoor fish-rearing systems the project will compare are a flow-through and a recirculating aquaculture system or RAS. The main difference between the two systems is that in a flow-through system the water is not reused and in a RAS the water is filtered and is reused within the tank. The two test systems will be located on the University of Minnesota St. Paul campus.    

“Moving production of Yellow Perch from outdoor pond rearing to indoor RAS could increase overall production, increase growth rates, and expand the season when fresh Yellow Perch fillets would be available to consumers,” said Schrank. “We hope this project will also help increase the availability of biosecure fingerlings that fish farmers need.” 

Once the project is complete, the project team, which includes Don Schreiner, Minnesota Sea Grant fisheries specialist, and Marie Thoms, communications manager, plans to develop and distribute a guide and outreach materials for producers on how to raise Yellow Perch that describe best practices and cost estimates for production in RAS.

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CONTACT:

Amy Schrank, fisheries and aquaculture extension educator, Minnesota Sea Grant, University of Minnesota and University of Minnesota Duluth, aschrank@umn.edu.

Don Schreiner, fisheries specialist, Minnesota Sea Grant, University of Minnesota and University of Minnesota Duluth, schr0941@d.umn.edu

Marie Thoms, communications manager, Minnesota Sea Grant, University of Minnesota and University of Minnesota Duluth, methoms@d.umn.edu


Seaweed farms in river estuaries significantly reduce nitrogen concentrations and prevent environmental pollution

Research conducted by Tel Aviv and Berkeley Universities

Peer-Reviewed Publication

TEL-AVIV UNIVERSIT

The cultivation reactor that was used as the base of the model. 

IMAGE: THE CULTIVATION REACTOR THAT WAS USED AS THE BASE OF THE MODEL. view more 

CREDIT: MEIRON ZOLLMANN

A new study by Tel Aviv University and University of California, Berkeley proposes a model according to which the establishment of seaweed farms in river estuaries significantly reduces nitrogen concentrations in the estuary and prevents pollution in estuarine and marine environments. The study was headed by doctoral student Meiron Zollmann, under the joint supervision of Prof. Alexander Golberg of the Porter School of Environmental and Earth Sciences and Prof. Alexander Liberzon of the School of Mechanical Engineering at the Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University. The study was conducted in collaboration with Prof. Boris Rubinsky of the Faculty of Mechanical Engineering at UC Berkeley. The study was published in the prestigious journal Communications Biology.

 

As part of the study, the researchers built a large seaweed farm model for growing the ulva sp. green macroalgae in the Alexander River estuary, hundreds of meters from the open sea. The Alexander River was chosen because the river discharges polluting nitrogen from nearby upstream fields and towns into the Mediterranean Sea. Data for the model were collected over two years from controlled cultivation studies.

Researchers explain that nitrogen is a necessary fertilizer for agriculture, but it comes with an environmental price tag. Once nitrogen reaches the ocean, it disperses randomly, damaging various ecosystems. As a result, the state local authorities spend a great deal of money on reducing nitrogen concentrations in water, following national and international conventions that limit nitrogen loading in the oceans, including in the Mediterranean Sea.

 

"My laboratory researches basic processes and develops technologies for aquaculture," explains Prof. Golberg. "We are developing technologies for growing seaweed in the ocean in order to offset carbon and extract various substances , such as proteins and starches, to offer a marine alternative to terrestrial agricultural production. In this study, we showed that if seaweed is grown according to the model we developed, in rivers’ estuaries, they can absorb the nitrogen to conform to environmental standards and prevent its dispersal in water and thus neutralize environmental pollution. In this way, we actually produce a kind of "natural decontamination facility" with significant ecological and economic value since seaweed can be sold as biomass for human use.

 

The researchers add that the mathematical model predicts farm yields and links seaweed yield and chemical composition to nitrogen concentration in the estuary.  "Our model allows marine farmers, as well as government and environmental bodies, to know, in advance, what the impact will be and what the products of a large seaweed farm will be – before setting up the actual farm," adds Meiron Zollman. "Thanks to mathematics, we know how to make the adjustments also concerning large agricultural farms and maximize environmental benefits, including producing the agriculturally desired protein quantities."

 

"It is important to understand that the whole world is moving towards green energy, and seaweed can be a significant source," adds Prof. Liberzon, "and yet today, there is no single farm with the proven technological and scientific capability. The barriers here are also scientific: We do not really know what the impact of a huge farm will be on the marine environment. It is like transitioning from a vegetable garden outside the house to endless fields of industrial farming. Our model provides some of the answers, hoping to convince decision-makers that such farms will be profitable and environmentally friendly. Furthermore, one can imagine even more far-reaching scenarios. For example, green energy: "If we knew how to utilize the growth rates for energy in better percentages, it would be possible to embark on a one-year cruise with a kilogram of seaweed, with no additional fuel beyond the production of biomass in a marine environment."

 

"The interesting connection we offer here is growing seaweed at the expense of nitrogen treatment," concludes Prof. Golberg. "In fact, we have developed a planning tool for setting up seaweed farms in estuaries to address both environmental problems while producing economic benefit. We offer the design of seaweed farms in river estuaries containing large quantities of agriculturally related nitrogen residues to rehabilitate the estuary and prevent nitrogen from reaching the ocean while growing the seaweed itself for food. In this way, aquaculture complements terrestrial agriculture."

 

Link to the article:

https://www.nature.com/articles/s42003-021-02371-z#Sec2

 

 

 

Recreational marijuana legalization and co-use with alcohol among adolescents

Peer-Reviewed Publication

PACIFIC INSTITUTE FOR RESEARCH AND EVALUATION

new study from the Prevention Research Center of the Pacific Institute for Research and Evaluation finds that recreational marijuana legalization may increase the risk of alcohol and marijuana co-use among adolescents.

The study examined the association between recreational marijuana legalization in California in November 2016 and alcohol and marijuana co-use among underage youth. The study is based on data from 7th, 9th, and 11th graders who participated in the statewide California Healthy Kids Survey from 2010–2011 to 2018–2019 school years.

Key findings include:

  • Recreational marijuana legalization was associated with greater odds of past 30–day alcohol and marijuana co-use among adolescents after 2016-2017
  • Legalization was more strongly associated with co-use among adolescents who reported past 30–day alcohol use and heavy drinking
  • Legalization was inversely related to co-use among past 30–day marijuana users
  • Among past 30–day co-users, there was a positive association between legalization and the frequency of marijuana use

Study co-author, Dr. Mallie J. Pachall, notes that:  “Our study shows that marijuana legalization may increase the risk of alcohol and marijuana co-use among adolescents. To combat this negative public health effect, greater restrictions on the numbers of alcohol and marijuana retail outlets, hours of operation, advertising, as well as imposing higher taxes on alcohol and marijuana products may help reduce their availability to adolescents.”

Source:  Paschall, Mallie J., Grisel García-Ramírez, and Joel W. Grube. "Recreational Marijuana Legalization and Co-use With Alcohol Among Adolescents." American Journal of Preventive Medicine (2021). https://doi.org/10.1016/j.amepre.2021.06.003Get rights and content

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PIRE is an independent, nonprofit organization merging scientific knowledge and proven practice to create solutions that improve the health, safety and well-being of individuals, communities, and nations around the world. www.pire.org

The Prevention Research Center (PRC) of PIRE is one of 16 centers sponsored by the National Institute on Alcohol Abuse and Alcoholism (NIAAA), of the National Institutes of Health, and is the only one that specializes in prevention. PRC's focus is on conducting research to better understand the social and physical environments that influence individual behaviors that lead to alcohol and drug misuse. www.prev.org

The Resource Link for Community Action provides information and practical guidance to state and community agencies and organizations, policy makers, and members of the public who are interested in combating alcohol and other drug abuse and misuse. https://prev.org/community-action/


Facebook:  facebook.com/PrevResources

Twitter:       twitter.com/PrevResources 

LinkedIn:   linkedin.com/company/PrevResources


If you would like more information about this topic, please call Sue Thomas at 831.429.4084 or email her at thomas.pire.org

 

Records rebut claims of unequal treatment of Jan. 6 rioters


It's a common refrain from some of those charged in the Jan. 6 riot at the U.S. Capitol and their Republican allies: The Justice Department is treating them harshly because of their political views while those arrested during last year's protests over racial injustice were given leniency.

© Provided by The Canadian Press

Court records tell a different story.

An Associated Press review of documents in more than 300 federal cases stemming from the protests sparked by George Floyd’s death last year shows that dozens of people charged have been convicted of serious crimes and sent to prison.

The AP found that more than 120 defendants across the United States have pleaded guilty or were convicted at trial of federal crimes including rioting, arson and conspiracy. More than 70 defendants sentenced so far have gotten an average of about 27 months behind bars. At least 10 received prison terms of five years or more.


The dissonance between the rhetoric of the rioters and their supporters and the record established by courts highlights both the racial tension inherent in their arguments — the pro-Donald Trump rioters were largely white and last summer’s protesters were more diverse — and the flawed assessment at the heart of their claims.

“The property damage or accusations of arson and looting from last year, those were serious and they were dealt with seriously, but they weren't an attack on the very core constitutional processes that we rely on in a democracy, nor were they an attack on the United States Congress,” said Kent Greenfield, a professor at Boston College Law School.

To be sure, some have received lenient deals.

At least 19 defendants who have been sentenced across the country got no prison time or time served, according to the AP’s review. Many pleaded guilty to lower-level offenses, such as misdemeanor assault, but some were convicted of more serious charges, including civil disorder.

In Portland, Oregon — where demonstrations, many turning violent, occurred nightly for months after a white Minneapolis police officer killed Floyd — more than 60 of the roughly 100 cases that were brought have been dismissed, court records show.

Most of those defendants received deferred resolution agreements, under which prosecutors agree to drop charges after a certain amount of time if the defendant stays out of trouble and completes things such as community service. Some Capitol riot defendants have complained it's unfair they aren't getting the same deals.

Conservatives have sought to equate the attack on the Capitol with the Black Lives Matter protests, accusing Democrats of being hypocrites for not denouncing the violence after Floyd’s death as loudly as the Capitol insurrection. Some Republicans have seized on the handling of the protest cases in Portland to suggest that the Jan. 6 defendants are being politically persecuted.

Only a handful of the nearly 600 people charged in the insurrection have received their punishments so far, and just three people have been sentenced to time behind bars. The vast majority of the most serious cases — involving those accused of assaulting police officers or conspiring to block the certification of Biden's victory — remain unresolved.

The catalysts for the riot and the demonstrations for racial justice were also fundamentally different.

The mob of Trump supporters whipped up by the former president’s lies about the election descended on the Capitol and pushed past police barriers, assaulted officers, smashed windows and sent lawmakers running in a stunning attempt to overturn the presidential election.

The demonstrations across the country after Floyd’s death were largely peaceful calls to address racial inequality and police brutality that occasionally turned violent. In some cities, protests descended into chaos after dark, with people smashing windows, looting stores, setting fires and assaulting officers.

Then-Attorney General William Barr pushed federal prosecutors to aggressively go after protesters who caused violence. Defense lawyers complained that many of the cases belonged in state court — punishments are typically lighter there — and accused Justice Department officials of carrying out a politically motivated effort to stymie the demonstrations.

Just this month, a man who was 19 at the time was sentenced to four years behind bars and ordered to pay what his lawyer said is likely to exceed $1.5 million in restitution after pleading guilty to inciting a riot last spring in Champaign, Illinois.

In the Capitol riot, dozens of defendants have been charged only with misdemeanors, and a standard plea deal has allowed many to plead guilty to a single count of demonstrating in the Capitol.

An Indiana woman who admitted illegally entering the Capitol but didn’t participate in any violence or destruction avoided jail time, and two other misdemeanor defendants got one and two months of home confinement. Two other people who were locked up pretrial were released after pleading guilty to misdemeanors and serving six months in jail.

Only one defendant convicted of a felony has received his punishment so far. Paul Hodgkins, who breached the U.S. Senate chamber carrying a Trump campaign flag, was ordered to serve eight months behind bars.

In a letter to Attorney General Merrick Garland in June, Sen. Ted Cruz, R-Texas, and four other Republican senators expressed concern about “potential unequal administration of justice” in how prosecutors have responded to the Jan. 6 riot and the Black Lives Matter protests.

One Jan. 6 defendant has similarly accused the Justice Department of selective prosecution based on different political viewpoints, comparing his case with how the department has handled charges stemming from the Portland protests.

Garrett Miller, of Texas, was wearing a T-shirt that said, “I Was There, Washington D.C., January 6, 2021,” when he was arrested. Prosecutors say Miller posted threatening messages on Twitter directed at Rep. Alexandria Ocasio-Cortez, a New York Democrat, after the riot. His lawyer said Miller isn’t trying to excuse his actions.

Federal prosecutors say Miller hasn’t presented any evidence that his case was politically motivated.

They also rejected comparisons between Miller’s actions and those of the Portland defendants, “who — despite committing serious offenses — never entered the federal courthouse structure, impeded a congressional proceeding, or targeted a specific federal official or officer for assassination.”

Meanwhile, in Utah this month, a federal judge sentenced 25-year-old Lateesha Richards to nearly two years in prison for tossing a pair of basketball shorts onto an overturned, burning patrol car and for hurling a baseball bat toward police officers during a May 2020 protest in Salt Lake City. There’s no evidence that the bat struck anybody.

Defense attorney Alexander Ramos, who had pushed for the judge to sentence Richards to the one year in jail she has already served, said the George Floyd protesters appear to be getting even more scrutiny than comparable “run-of-the mill” cases.

“If it didn’t have this political background, I think more people would have been let out,” Ramos told the AP.

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Richer reported from Boston, Kunzelman from College Park, Maryland, and Billeaud from Phoenix.

Alanna Durkin Richer, Michael Kunzelman And Jacques Billeaud , The Associated Press
900-Plus Call on US Government to Protect Afghan Artists

Lindsey Ellefson 

More than 900 signees — including art-focused organizations and individuals — are urging the American government to evacuate artists, filmmakers and more from Afghanistan

© TheWrap afghan evacuate rescue

"We are writing to urge the United States government to do everything in its power to facilitate the departure from Afghanistan of at-risk Afghans, and to include artists, filmmakers, performers, and writers in that category. As a group of individuals--artists, filmmakers, performers, writers, curators--and institutions, acting in solidarity with our peers in Afghanistan, we recognize the vulnerability of the country's cultural workers, who are already being targeted by the Taliban and forced into hiding," says the letter, which was initially created by Arts for Afghanistan on August 24. "Like Afghan journalists, activists, and citizens who have assisted the US, cultural workers face threats to their lives because of the work they've done--and they are unlikely to get out of the country without immediate changes to Washington's approach to granting visas and providing flights."

Using a Google Doc, the letter's creators opened it up to individual signers. Among the organization that have added their names are France's ACA Project, the Afghan American Artists and Writers Association, Artists at Risk, the Asian American Arts Alliance, the Authors Guild, the Film Festival Alliance, the Freelancers Union, the National Writers Union, the New York Foundation for the Arts and PEN America. The US Department of Arts and Culture also appears on the list.

Visual artists like Coco Fusco, Naeem Mohaiemen, Walid Raad, Michael Rakowitz, Martha Rosler, Cecilia Vicuña and Martha Wilson signed, too. So did writers like Teju Cole, Hari Kunzru, Viet Thanh Nguyenm and Lynne Tillman, and actors like Michael Ealy and Khatira Rafiqzada.

The letter urges the government to take immediate action through the State Department and Department of Homeland Security to expedite visa processing and provide asylum for vulnerable Afghans and include cultural workers in the categories being used to put at-risk Afghans on evacuation lists. Other recommendations include holding the Taliban accountable for commitments made during the Doha negotiations, removing quotas for Afghan refugees, halting deportations of Afghan refugees and keeping the Kabul airport open until all at-risk Afghans who want to evacuate have been able to.

The letter was presented before the U.S. completed its full military withdrawal from Kabul. President Joe Biden had declared earlier this month that Tuesday was the deadline for American troops to be pulled from Afghanistan, which recently fell to Taliban rule.

"Even before the Taliban's takeover, cultural workers took grave risks in depicting the experiences and articulating the aspirations of Afghans, with the encouragement--and, often, direct support--of the US government. Now, the vocation of truth-telling has become much more dangerous, and many of our peers see no choice but to leave the country. In addition to standing with advocates for journalists and activists, we insist on the protection of all who have devoted themselves to fostering free expression and civil society in Afghanistan," says the letter.
Fran Drescher Supporters Win Big In SAG-AFTRA National Board Races In New England & New Mexico

© SAG-AFTRA


Fran Drescher supporters have held on to two more national board seats as the SAG-AFTRA elections wrap up later this week. Incumbent Bill Mootos has been reelected in New England, and incumbent Mel MacKaron has been reelected in New Mexico.

With only four of the union’s 25 local races to be decided, it now looks more and more likely that Drescher’s ruling Unite for Strength party and its affiliates will continue to hold a majority of the 80 National board members, which includes the 10 national officers, no matter who wins the national presidency – Drescher or Matthew Modine. Local elections in Los Angeles and New York, where 23 national board seats are still up for grabs, will determine the balance of power. Those races, and the campaigns for national president and secretary-treasurer, will conclude Thursday.

In New England, Mootos defeated Chuck Slavin by a 2-to-1 margin – 469 votes to 225. Slavin was endorsed by Modine’s MembershipFirst slate. A third candidate, George J. Vezina, received 48 votes.

Slavin also lost his bid to unseat Andrea Lyman as president of the New England Local. Lyman, who also supports Drescher, also doubled up on Slavin, 506 votes to 239. Her local vice presidential running mates Tom Kemp and Vic Ramos also won, as did incumbent secretary Ellen Colton, all of whom are Drescher supporters. Of the local’s 2,783 eligible members, 757 voted (27.2%).

In New Mexico, MacKaron defeated challengers Michael Miller and Heath Hensley. MacKaron got 95 votes; Miller got 76; and Hensley, who was endorsed by Modine’s MembershipFirst, came in third with 50. Of the local’s 772 eligible members, 225 cast ballots (29.15%).

Voting is ongoing at the union’s locals in Philadelphia and San Diego, but only Philadelphia is electing a national board member this cycle.

CTHULHU STUDIES
Female Octopuses Throw Things at Irritating Males, And Look, We Totally Get It


When it comes to getting rid of an annoying pest, sometimes subtlety just won't cut it. Sometimes you just have to throw everything or anything within reach, pelting the offender with shells and debris until they scuttle off back to their hole.
© Godfrey-Smith et al., bioRxiv, 2021 An octopus flings a cloud of silt.

OK, that approach probably isn't great for humans. But for octopuses, it seems to work a treat, according to new research.

In a site off the eastern coast of Australia, where such large numbers of Sydney octopuses (Octopus tetricus) congregate that scientists have dubbed the region Octopolis, scientists first observed octopuses flinging objects at each other in a scene of heated argy-bargy in 2015.


OctopusesThrowingDebris throwing by octopuses in the wild. (Godfrey-Smith et al., bioRxiv, 2021)


Now they have determined that the flingers are mostly female – and they're probably, at least in some instances, trying to ward off overly amorous males.

"The throwing of material by wild octopuses is common, at least at the site described here. These throws are achieved by gathering material and holding it in the arms, then expelling it under pressure," the researchers write in their pre-print paper.

"Force is not imparted by the arms, as in a human throw, but the arms organize the projection of material by the jet... Throwing in general is more often seen by females, and we have seen only one hit (a marginal one) from a throw by a male. Octopuses who were hit included other females in nearby dens, and males who have been attempting mating with a female thrower."

Many animals fling debris at others, and there are many reasons for doing so. It can be a threat or defensive behavior, or have to do with trapping prey. Most animals seen doing this, however, are flinging things at other species, not their own.

So, to determine why octopuses might like to throw shells, silt, and algae at each other, a team of researchers led by philosopher of science Peter Godfrey-Smith of the University of Sydney set out to observe the chucking in action.

Using non-invasive GoPro cameras left on-site, they recorded over 100 instances of the inhabitants of Octopolis flinging debris willy-nilly. The octopuses would hold material in their arms, and then use their siphons to blast a jet of water that would blow the material up to several body-lengths away.

As they analyzed their recordings, the researchers noticed that there seemed to be two main types of throwing. The first had to do with housekeeping, and keeping their cosy dens free of unwanted debris and food waste.

The second seemed a bit more targeted. Octopuses, determined to be (mostly) female, were observed throwing material at other octopuses in targeted attacks. Overall, shells were the most commonly thrown object, at 55 recorded instances.

For 33 percent of these targeted throws, the flung object actually hit the intended target, with silt being the best material for this task. The targets were either other nearby females, or males making attempts to mate.

In one notable instance, recorded in 2016, a female octopus threw material at a male 10 times over a period of 3 hours and 40 minutes, hitting it five times. Interestingly, octopuses that were hit with such ejecta made no attempt to retaliate, but did sometimes attempt to duck (although not always successfully).

Another, perhaps slightly more controversial explanation for this behavior could be that the throws are not always necessarily targeted, but could be a form of tantrum due to frustration.

After several dramatic interactions, the researchers observed that one octopus would throw things in a manner that didn't seem directed at the other octopus. Given how difficult it is to assign intent to animals, though, especially one as alien as octopuses, it is impossible to definitively conclude that this is the case.

Either way, it seems that the throwing does seem to play some sort of social role.

"Octopuses can thus definitely be added to the short list of animals who regularly throw or propel objects, and provisionally added to the shorter list of those who direct their throws on other animals," the researchers write.

"If they are indeed targeted, these throws are directed at individuals of the same population in social interactions – the least common form of nonhuman throwing."

The paper is available at the pre-print website bioRxiv.
LEAD FROM BULLETS
Birds of prey face global decline from habitat loss, poisons

WASHINGTON (AP) — Despite a few high-profile conservation success stories – like the dramatic comeback of bald eagle populations in North America – birds of prey are in decline worldwide.
© Provided by The Canadian Press

A new analysis of data from the International Union for the Conservation of Nature and BirdLife International found that 30% of 557 raptor species worldwide are considered near threatened, vulnerable or endangered or critically endangered. Eighteen species are critically endangered, including the Philippine eagle, the hooded vulture and the Annobon scops owl, the researchers found.

Other species are in danger of becoming locally extinct in specific regions, meaning they may no longer play critical roles as top predators in those ecosystems, said Gerardo Ceballos, a bird scientist at the National Autonomous University of Mexico and co-author of the study published Monday in the journal Proceedings of the National Academy of Sciences.

“The golden eagle is the national bird of Mexico, but we have very few golden eagles left in Mexico,” he said. A 2016 census estimated only about 100 breeding pairs remain in the country.

Harpy eagles were once widespread throughout southern Mexico and Central and South America, but tree cutting and burning has dramatically shrunk their range.

Of threatened birds of prey that are active mostly during the day — including most hawks, eagles and vultures — 54% were falling in population, the study found. The same was true for 47% of threatened nocturnal raptors, such as owls.

That means “the factors causing the decline have not been remedied" and those species need immediate attention, said Jeff Johnson, a biologist at the University of North Texas, who was not involved in the study.

Globally, the biggest threats to these birds are habitat loss, climate change and toxic substances, said Evan Buechley, a research associate at the Smithsonian Migratory Bird Center and a scientist at nonprofit HawkWatch International who was not involved in the study.

The insecticide DDT thinned egg shells and decimated bald eagle populations in North America, leading to its ban in the U.S. in 1972. But Buechley said other threats remain, including rodent pesticides and the lead in hunters' bullets and shot pellets. Many raptors feed on rodents and dead animals.

The Andean condor is declining due to exposure to pesticides, lead and other toxic substances, said Sergio Lambertucci, a biologist at the National University of Comahue in Argentina.

Widespread use of an anti-inflammatory drug in livestock led to the rapid decline of vultures in South Asia. The birds died after eating carcasses, shrinking the population of some species by 95% in recent decades.

In East Asia, many raptor species are long-distance migrants: They breed in northern China, Mongolia or Russia and travel down the eastern coast of China to spend summers in Southeast Asia or India.

“Certain areas of the coast will see 30 to 40 species during peak migration,” said Yang Liu, an ecologist at Sun Yat-Sen University in Guangzhou, who was not involved in the study.

But eastern China is also the most populous and urban part of the country, with steep development pressures. “Sites that are bottlenecks for migration, with thousands of birds passing through, are important to protect,” he said.

Of 4,200 sites identified by conservation groups as critical for raptor species globally, most "are unprotected or only partly covered by protected areas," said Stuart Butchart, chief scientist at BirdLife International in the United Kingdom.

A 2018 study in the journal Biological Conservation found that 52% of all raptor species worldwide are decreasing in population.

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Follow Christina Larson on Twitter: @larsonchristina

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

Christina Larson, The Associated Press
Canada's housing crisis is so bad its government wants to change the rules for buying a home
bwinck@businessinsider.com (Ben Winck) 11 hrs ago
© Patrick Doyle/Reuters A realtor's for sale sign stands outside a house that had been sold in Ottawa, Ontario, Canada, May 27, 2021. Patrick Doyle/Reuters

Canada sits in a housing crisis of its own, and its government is eyeing some unconventional fixes.

Prime minister Justin Trudeau aims to ban blind bidding, which keeps buyers from seeing others' offers.

The ban will "crack down on predatory speculators," he said. "You shouldn't lose a bidding war ... to speculators."

Canada desperately needs affordable homes. Revamping the homebuying process might be the key, according to Prime Minister Justin Trudeau.


Home prices in Canada surged 22% over the past year, and the median home price sits at a record high, according to the Canadian Real Estate Association. Material shortages and soaring construction costs also place the country in a bleak supply shortage. The Bank of Nova Scotia estimates the country has fewer homes per 1,000 residents than any other G7 nation.

The government is taking a multipronged approach to address the problem. On the supply front, Trudeau rolled out a plan last week that aims to build 1.4 million homes over the next four years. Yet the prime minister's plans for accessible homebuying are perhaps more ambitious.

For one, Trudeau seeks to ban blind bidding. In that process, bidders can see the asking price of the home, but not what other prospective buyers bid. It's been criticized as a way for sellers to pad prices. Outlawing such bidding would help "crack down on predatory speculators" and make for a fairer market, Trudeau said in an August 24 speech.

The prime minister also plans to bar the buying of Canadian homes for investment purposes. Housing markets in Canada's largest metropolitan areas have been increasingly flooded by foreign buyers as investors look to capitalize on soaring prices. Trudeau's plan promises to prohibit new foreign ownership of Canadian homes for two years and expand on taxes of vacant foreign-owned homes.

"You shouldn't lose a bidding war on your home to speculators," Trudeau said. "No more foreign wealth being parked in homes that people should be living in."

Some of Trudeau's plan has already received pushback from Canadian homebuilders. Banning blind bidding would keep homeowners from selling their properties "the way they want," and boosting supply is a much more effective way to aid affordability, the CREA said in a statement.

"Open bidding is still bidding," the association added. "Homeownership remains out of reach for millions of Canadians because there is not enough housing supply to meet demand."

Canada's Conservatives see other options for healing the market. Erin O'Toole, the party's leader, proposed a plan last week that would also ban foreign investors from buying for two years and lift supply by refurbishing 15% of federal buildings for housing use.

Regardless of their differences, each party's plan strikes a starkly different tone from their southern neighbor. While the US continues to grapple with similar affordability pressures, the federal government has done little to aid buyers. The bipartisan infrastructure plan backed by President Joe Biden lacks the $213 billion initially set to create and retrofit 2 million housing units.

Bidding wars have also boosted homeownership out of reach for many Americans. The hottest markets frequently saw interested parties furiously bid up homes to avoid losing out, Insider previously reported. And rampant speculation by firms like BlackRock and Blackstone means thousands of homes have been taken off the market over the past decade to be rented out for steady income. The investing trend grew even more popular throughout the pandemic as home values spiked higher.

On the rental front, lawmakers are struggling to assist Americans on the verge of eviction. The Supreme Court struck down Biden's 60-day eviction ban on Thursday, putting roughly 7.4 million Americans at risk of homelessness. Democrats have slammed the court's ruling and called for fresh aid, but such support is unlikely to materialize. With the ban reversed, Goldman Sachs estimates 750,000 households will face eviction by January.

Read the original article on Business Insider
BC
Nuxalk Nation stands together to uphold the laws of the land and waters


On Aug 16, members of the Nuxalk Nation, including both hereditary and elected leadership, handed an eviction notice to workers of the mining company Juggernaut Exploration Ltd.

“We are the lawful authority with jurisdiction here. Our sovereignty is neither granted by nor subject to the opinion of others. At no time has the British Crown, Canada or the province of British Columbia had jurisdiction over the people of Nuxalk,” Nuskmata (Jacinda Mack) read from a statement on Aug 16.

“We do not consent to any mining activities, including exploration. We do not recognize permits and tenures issued by British Columbia.”

Nuskmata is the spokesperson for the ancestral governance of the Nuxalk Nation on mining issues. For the past ten years, she has been advocating for communities and speaking about the impacts of the industry, including the 2014 Mount Polley tailings pond spill — considered the largest mining disaster in Canadian history.

“That was in my mother’s homeland, and there’s now this in my father’s homeland,” Nuskmata tells IndigiNews over the phone.

The Vancouver-based company received two five-year permits for mining exploration activities from the province of B.C. for work on Qw’miixw (Mount Pootlass), a glaciated peak four kilometres from the occupied village of Q’umk’uts (present day Bella Coola), and above Nutcucts’kwani (Necleetsconnay) River.

“Mt. Pootlass is the mountain of our head hereditary chief, where that family ancestry is from,” says Nuskmata. “It is a spiritual place with stories of supernatural beings.”

The other site drains into the Noeick River, a salmon bearing river, she explains, and then into South Bentink Arm, at another important village site called Talyu, which community members also plans to reclaim.

“They picked the worst possible places they could to mine,” says Nuskmata. “It would flow directly into our river, it would go into the estuary, into all of the marine and sacred areas. It would impact every aspect of our life in a negative way.”

While the company is currently limited to exploratory activity, if they moved forward, it would open the door to other mining companies interested in these deglaciated areas in Nuxalkulmc (sovereign unceded Nuxalk territory), Nuskmata says.

The nation’s concerns aren’t strictly environmental, Nuskmata says. They’re also concerned about the social impacts of an influx of workers in a small community, she says. And then there’s the way the provincial and federal governments have dealt with this issue.

This story isn’t a new one, she says.

“This is the continuation of illegal colonial occupation and genocide on our people.”

Nuskmata isn’t only concerned about mining, she’s concerned about “industrial extraction in any form,” in a time of unprecedented climate change across the world, in the middle of a shape-shifting global pandemic, wildfires, droughts and floods.

“The capitalist system is crippling and collapsing entire ecosystems — that we’re a part of — with blind ambition and greed,” she says. “We need to be thinking about the bigger picture, long-term — we’re in this incredible crisis right now.”

It’s time to return to systems of governance that are based on sustainability and “not taking more than you need,” looking at ways to restore, rather than extract, she says.

“We’re saying no to mining, but it’s a spark in the community to talk about these bigger issues, to bring people together and reimagine a future where we’re actually healthy, and safe, living within our ecosystem in a good way.”

In 2019, the Nuxalk hereditary leadership signed an agreement with the band office and the elected chief and council (who have jurisdiction over federally-funded programs and services delivered on reserve), saying that all would work together for the benefit of the Nation, Nuskmata says.

“This is critical, because predictably what happens is the company will go to the band office and completely dismiss ancestral governance,” Nuskmata says. “But what we’re saying is that we have an understanding that we’re Nuxalk first, we’re all here, and we have a responsibility to protect our lands, and that comes before any type of colonial institution and our community recognizes that difference.”

This is a sovereignty issue, Nuskmata says, and her community has come together with one unified voice, saying no to mining activity in the valley and pushing back on “the divide and conquer trap of companies, the province and Canada.”

According to B.C.’s Minister of Energy, Mines and Low Carbon Innovation, consultation between the Province and Nuxalk Nation regarding the two mining permits took place in “accordance with the Coastal First Nations Reconciliation Protocol, to which the Nuxalk Nation is a signatory,” but Nuskmata says “there has been no deal of any kind.”

“The province is the one who has been issuing these illegal permits,” Nuskmata. “They’re wasting everybody’s time and money.”

Letters have been sent to the province and feds, on behalf of the joint leadership, Nuskmata says, but they’ve received no response.

“I really think that it’s up to the people to be engaged in this, because that’s where the real change happens,” Nuskmata says. “Coming together, better communication, better relationships, that’s what everybody wants, we want the same things — to be happy and healthy and live in a peaceful way.”

More people are beginning to understand the history of the valley, she says, information that has been suppressed from the general public, including “the violence that has been inflicted, in order to get to the gold in our mountains.”

Neighbours want to learn more about Nuxalk ancestral governance and laws, “the laws of the land and waters,” she says.

“Real reconciliation is happening in communities on the ground,” Nuskmata says. “People are working together to educate themselves, share that knowledge and stand together to create a better kind of society.”

Helping to keep the roughly 2,000 people who live in the valley informed is the Nuxalk Radio station, which “broadcasts the laws of the lands and waters.”

“It’s a critical piece in our sovereignty,” Nuskmata says. “The radio station has been amazing in encouraging language revival — there’s this renaissance happening.”

One of the conditions of employment at the radio station is that hosts need to be learning the Nuxalk language and incorporating it in their programming. When it started in 2014, DJs had some degree of Nuxalk, Nuskmata says, but now people are speaking it everyday, teaching it to their children, rapping in the language.

“The more we learn it, the deeper we understand how our relationships to the land are rooted in love, rooted in responsibility, reciprocity,” Nuskmata says.

It’s these ancestral laws — love, responsibility, and reciprocity, that call Nuxalk people to stand up against industrial activity that will harm their community, lands and waters, and future generations, she says.

Nuskmata is currently involved in rebuilding her ancestral village of Nusq’lst, a village that was decimated by smallpox. Since the nation has taken action on the Vancouver-based mining company, two more people have come forward to start their process of rebuilding homes in the village, she says.

“That’s really exciting,” she says. “That’s the goal of all of this pushback — to educate and inspire people to stand up to their responsibilities and take action, to move back to our lands.”

Emilee Gilpin, Local Journalism Initiative Reporter, The Discourse