First Big Survey of Births Finds Millions of Missing Women

First Big Survey of Births Finds Millions of Missing Women

But a massive effort to catalogue the sex ratios at birth, for the first time, for every country, shows that’s not such a smart strategy after all.“For so long people just took that number for granted,” says Fengqing Chao, a public health researcher at the Institute of Policy Studies in Singapore.

The Conservation Story of the Kenya Black Leopard

The Conservation Story of the Kenya Black Leopard

The melanistic leopards were filmed in Lorok, Laikipia County, Kenya on remote cameras that were set up as part of a large-scale study aimed at understanding the population dynamics of leopards in Mpala and Loisaba Conservancies .

India: How to help communities break the vicious "disaster-poverty" cycle

India: How to help communities break the vicious "disaster-poverty" cycle

India: How to help communities break the vicious "disaster-poverty" cycle Disasters caused by natural hazards push the near poor to below the poverty line and contribute to more persistent and severe poverty, creating poverty traps.

Monarchs Are Disappearing in the Western U.S. What’s Happening?

Monarchs Are Disappearing in the Western U.S. What’s Happening?

It’s the biggest monarch butterfly breeding site the U.S. Forest Service manages in the Intermountain West. What you plant in your garden and flowerbeds this growing season will help or hinder pollinators, including monarchs. Everyone can help.” A monarch caterpillar eats a leaf on a butterfly milkweed plant.

Clues to Our Unknown Ancestors Are Hiding in Our Genome

Clues to Our Unknown Ancestors Are Hiding in Our Genome

“We could use an infinite amount of data to train the deep learning engine, because we were using simulations.” The researchers generated tens of thousands of simulated evolutionary histories based on differing combinations of demographic details: the number of ancestral human populations, their sizes, when they diverged from one another, their rates of intermixing and so on.

The World Might Actually Run Out of People

The World Might Actually Run Out of People

“Once that decline begins, it will never end.” Penguin Random House But Empty Planet is not a book about statistics so much as it is about what’s driving the choices people are making during the fastest period of change in human history.

Our children’s planet: What does their education have to do with climate change?

Our children’s planet: What does their education have to do with climate change?

Helping with that transition is an especially important challenge for the World Bank because most of the population growth in the coming decades will be in developing countries. I like to think that Korea’s embrace of sustainability was in part facilitated by World Bank supported environmental education programs in the 1990s.

Feed the Bears to Save Them?

Feed the Bears to Save Them?

And that’s why it was a bit jarring to read about a leading wildlife conservationist and wilderness advocate feeding grizzly bears. These bears are largely found in the Great Gobi A Strictly Protected Area, a wilderness region five times larger than Yellowstone National Park.

No Caribou for Christmas: A Disappearing Herd Now Down To One

No Caribou for Christmas: A Disappearing Herd Now Down To One

“It’s disappointing to be honest,” says Norm Merz, South Selkirk Caribou Management Plan coordinator and Kootenai Tribe of Idaho wildlife biologist. More time than caribou have, but there is a plan for the South Selkirk herd.

Here's a Way to Fight Climate Change: Empower Women

Here's a Way to Fight Climate Change: Empower Women

She argues that if women were treated more equally professionally, they’d have fewer kids and the land they farm would be more efficient, all of which would help save the planet.“Women are the primary farmers of the world,” Wilkinson says.

Can Tourism Save the Ocellated Turkey?

Can Tourism Save the Ocellated Turkey?

One conservation tool that can help arrest this downward population spiral, despite people’s dependence on wild game, is a program that has tourists from elsewhere pay for the privilege of hunting the ocellated turkey.

The Evolutionary Importance of Neutral vs. Adaptive Genes

The Evolutionary Importance of Neutral vs. Adaptive Genes

For most of the first half of the 20th century, population geneticists largely attributed genetic differences between populations and species to adaptation through positive selection.Motoo Kimura proposed in 1968 that most mutations might be neutral in effect rather than beneficial or harmful, and that shifts in the frequency of these neutral mutations dominated evolutionary change at the genomic level.Annual ReviewsBut in 1968, the famed population geneticist Motoo Kimura resisted the adaptationist perspective with his neutral theory of molecular evolution.

Five takeaways for better nutrition in South Asia—and beyond

Five takeaways for better nutrition in South Asia—and beyond

Overall, the event underscored how governments and health authorities in many developing countries face the dilemma of how to feed their growing population while ensuring their food is nutritious and discussed relevant strategies to transform nutrition security challenges into opportunities. As rice prices increase, relative to nutrient-rich foods, people will diversify their diets away from rice.

Why are Yellowstone’s Swans Disappearing?

Why are Yellowstone’s Swans Disappearing?

Since the likely causes are eagle predation – which was ultimately a product of humans introducing lake trout – human disturbance and climate change, the Park Service felt like it could begin bringing swans in to supplement the population.

Climate change will reshape the world’s agricultural trade

Climate change will reshape the world’s agricultural trade

Our results suggest that global trade patterns of agricultural commodities may be significantly different from today’s reality – with or without carbon mitigation. The opposite occurs without carbon mitigation: the production and exports of wheat are projected to decline due to climate change impacts on agriculture.

Crop losses to pests will soar as climate warms, study warns

Crop losses to pests will soar as climate warms, study warns

Rising temperatures make insects eat and breed more, leading to food losses growing world population cannot afford, say scientists “The results show that insects will cause significantly increased grain loss across many regions of a warmer world,” he said.