Who calls the shots on city land use?

Everybody thinks it, but no one wants to say it out loud — the fact that for decades, our city council and its administration have, to a large degree, been in thrall to the construction and development industries.

Cougar makes rare appearance in Manitoba

A cougar made a rare appearance on a trail camera in the Whiteshell Provincial Park.

U of M research underscores importance of polar bears to future of Arctic

Polar bears are generous hunters whose leftovers feed many other animals, new research shows, casting the protected species as a major provider, not just a vulnerable predator in a province that attracts thousands of polar bear watchers every fall.

Arctic foxes, wolverines, eagles, hawks, gulls and even younger bears are among at least 11 species who feast on the prey left behind by polar bears. The latest study calculates the leftovers: 7.6 million kilograms per year in picked-over seal carcasses left on sea ice.

That’s a conservative estimate, said biologist and University of Manitoba PhD candidate Holly Gamblin, lead author of the study published Tuesday in the journal Oikos from the Nordic Ecological Society.

“A bunch of my co-authors are in that polar bear research world and have been thinking about investigating (this issue), knowing that it’s this really under-represented and under-studied component of the story, when we think about polar bears as apex predators,” said Gamblin, who has studied Arctic foxes. “They had had this idea for a while and I was just sort of in the right place at the right time.”

Prolonged drought stunts the renowned wild blueberry crop in the Maritimes

HALIFAX - This summer’s prolonged drought across Atlantic Canada has had a costly impact on wild blueberry growers in New Brunswick and Nova Scotia.

Donald Arseneault, general manager of the NB Blueberries industry group, says that as this year’s harvest was wrapping up, the total yield was believed to be 70 per cent less than the previous three-year average.

“This year has been tremendously dry and we haven't really seen this in a long time,” Arseneault said, adding that this year’s crop amounted to about 20 million pounds, down from the annual average of 68 million pounds.

The industry, which ships its product around the world, was also hurt by delays caused by the provincial government’s decision to temporarily shut down the harvest as it tried to deal with a growing number of wildfires that flared up amid tinder-dry conditions.

From science experiments to ordering dinner, trying new things can pay valuable dividends

Among the many technical terms from fields such as neuroscience, artificial intelligence, applied mathematics and genetics found in this fascinating new book by bestselling Canadian science writer/distance runner/physicist Alex Hutchinson, the reader discovers “prediction error.”

It’s a term that comes from studies of how the brain makes sense of the impressions presented to it by the senses. The brain doesn’t simply receive sensory data; rather, it continually makes predictions based on partial sense data and feeds these back to the senses. When we get lost, the predictions we make tend to be errors.

We also carry a variant of the gene DRD4 that gives us a happy endorphin boost when our rate of prediction error declines. That genetic variant, Hutchinson writes, emerged 40-50,000 years ago, “right around the time when our ancestors began their long, multi-pronged march to the farthest corners of the globe. It was a march, the findings hinted, spurred in part by dopamine.”

Appropriately enough, The Explorer’s Gene will be picked up by many readers as a result of a prediction error. Judging by the title and the historic mountaineering photo on the cover, readers may assume the book is a story of outdoor adventure.

Commuter traffic stops for whales on Australia’s humpback highway

PORT STEPHENS, Australia (AP) — The ferry was late, but not because of the usual traffic. Sydney commuters watched from an idling boat this month as humpback whales the size of buses surfaced nearby, halting the vessel’s passage across the harbor. The curious mammals seemed to be watching them back.

In June and July, it’s not uncommon for whales to stop water traffic in Sydney. Winter heralds the opening of the so-called humpback highway, a migratory corridor along Australia's east coast used by about 40,000 of the massive creatures as they travel from feeding grounds in freezing Antarctica to tropical breeding areas off Queensland state.

“It’s blubber to blubber,” said Dr. Vanessa Pirotta, a wildlife scientist at Macquarie University in Sydney and author of the book “Humpback Highway.” During peak traffic periods the bustling coastal city of 5.5 million people becomes one of the world’s few urban centers where you might see a breaching whale on your morning walk, while buying a coffee, or waiting at a bus stop – anyplace you can see the ocean.

Whales cruise close to shore

Olympic boxing champ Imane Khelif must undergo genetic sex screening to fight for new governing body

Olympic boxing champion Imane Khelif must undergo genetic sex screening to participate in upcoming events with the sport's new governing body.

World Boxing announced mandatory sex testing for all athletes Friday. The governing body specifically mentioned Khelif when announcing the policy, saying the Algerian gold medal winner must be screened before she will be approved to fight at any upcoming events, including the Eindhoven Box Cup next month in the Netherlands.

“The introduction of mandatory testing will be part of a new policy on ‘Sex, Age and Weight’ to ensure the safety of all participants and deliver a competitive level playing field for men and women,” World Boxing wrote in a statement. The fighters' national federations will be responsible for administering the tests and providing the results to World Boxing.

Khelif won a gold medal at the Paris Olympics last summer amid international scrutiny on her and Taiwan's Lin Yu-ting, another gold medal winner. The previous governing body for Olympic boxing, the Russian-dominated International Boxing Association, disqualified both fighters from its 2023 world championships after claiming they had failed an unspecified eligibility test.

Army Corps analysis finds Great Lakes pipeline tunnel would have sweeping environmental impacts

Building an underground tunnel for an aging Enbridge oil pipeline that stretches across a Great Lakes channel could destroy wetlands and harm bat habitats but would eliminate the chances of a boat anchor rupturing the line and causing a catastrophic spill, the U.S. Army Corps of Engineers said Friday in a long-awaited draft analysis of the proposed project's environmental impacts.

The analysis moves the corps a step closer to approving the tunnel for Line 5 in the Straits of Mackinac. The tunnel was proposed in 2018 at a cost of $500 million but has been bogged down by legal challenges. The corps fast-tracked the project in April after President Donald Trump ordered federal agencies in January to identify energy projects for expedited emergency permitting.

A final environmental assessment is expected by autumn, with a permitting decision to follow later this year. The agency initially planned to issue a permitting decision in early 2026.

With that permit in hand, Enbridge would only need permission from the Michigan Department of Environment, Great Lakes and Energy before it could begin constructing the tunnel. That's far from a given, though.

2024 sees record warm temperatures, less sea ice cover in Gulf of St. Lawrence

MONT-JOLI - Last year, the Gulf of St. Lawrence recorded its highest maximum surface temperature and lowest seasonal volume of ice cover in decades, say researchers with the federal Fisheries Department.

Surface temperatures and ice cover are directly related to air temperature, said Peter Galbraith, a research scientist in physical oceanography at the agency's Maurice Lamontagne Institute in Mont-Joli, Que., northeast of Quebec City.

Last July, the surface temperature hit 16.7 C, a record since data started being recorded in 1981, and 2.4 C warmer than average. Between May and November, the warmest surface temperature was 11.6 C, also a record, and 1.6 C higher than average.

“So it was the warmest air temperature, which gave us the warmest sea surface temperature,” Galbraith said.

Picking buffaloberries and electric fences: how wildlife is being managed ahead of G7

OTTAWA - There surely won't be lions or tigers at the G7 summit in Kananaskis, Alta., next month, and officials are doing their best to keep bears away, too.

As many as 5,000 participants are set to descend on the area in a few weeks, and officials are already working to install security barriers and clear out the area of anything that might attract bears to keep both people, and the animals, safe.

Earlier this week more than 200 local kids began plucking buffaloberry bushes around Kananaskis in an effort to detract bears from venturing into the area.

The bright red berries are quite popular with bears.

‘Under a microscope’: Cottagers call for wildfire management plans after fatal fires

WINNIPEG - Cottage owners and disaster prevention experts in Manitoba are urging governments to develop comprehensive wildfire management plans after a pair of devastating wildfires.

Close to 1,000 people were forced from their homes last week as a wildfire near the Rural Municipality of Lac du Bonnet, spurred by dry, hot and windy conditions, burned nearby.

The quick-moving fire, which is currently being held, destroyed 28 homes and cottages and left two people dead.

"The whole emergency plan for every municipality should be under a microscope review right now," said Brad Wood, a Winnipeg firefighter whose cottage was destroyed.