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Articles on Conservation

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Dodos have been extinct for centuries, but it’s not a simple matter to definitively designate a species as extinct. (Shutterstock)

When is a species really extinct?

Species are declared extinct when there have been no verifiable sightings for 50 years. Declaring a species extinct has implications for conservation efforts and policies.
Wolverine numbers are declining globally due to heavy trapping and predator killing by humans, habitat loss, climate change and various other factors. (Shutterstock)

Connecting fragmented wolverine habitat is essential for their conservation

The key to protecting wolverines around the world is to reduce trapping, minimize predator control pressures, and to protect and connect large blocks of intact habitat they need to survive.
Fresh grizzly bear tracks in Yellowstone National Park. Jacob W. Frank, NPS/Flickr

Linking protected areas from Yellowstone to the Yukon shows the value of conserving large landscapes, not just isolated parks and preserves

Parks and refuges are important for conservation, but without connections, they’re like islands. Linking them by protecting land in between makes it possible for wildlife to move over bigger areas.
Tourists cross a hanging bridge in the treetops of Costa Rica’s Monteverde cloud forest. Matthew Williams-Ellis/Universal Images Group via Getty Images

Protecting biodiversity – and making it accessible – has paid off for Costa Rica

Tourism revenues account for almost 10% of Costa Rica’s gross domestic product. New research shows that charismatic wildlife is necessary but not sufficient to attract ecotourists.
Rohan Clarke

New research shows planting trees and shrubs brings woodland birds back to farms, from superb fairy wrens to spotted pardalotes

Increasing revegetation from 1% to 10% of the landscape doubled the number of woodland bird species. The collective efforts of landowners can make a real difference for native wildlife.
Thick layers of snowy ice caused by unseasonal winter rains in Sweden block wild reindeers’ traditional grazing grounds and their access to food. Climate change is jeopardizing the migration and food-gathering routines of non-human species globally. (AP Photo/Malin Moberg)

Species on the move: 4 ways conservation can adapt in an era of climate change

As climate change and other conflicts put humans and other species on the move — and sometimes in conflict — we need to rethink the way we approach conservation.

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