【推荐1】Climate change is changing the migration routes of animals worldwide. Take the mule deer for example. Every spring in Wyoming, green-up first appears at lower altitudes before progressing up the mountainside. Migrating mule deer follow and seek food on this green wave. But as a changing climate leads to more frequent and more severe droughts, the greenery is not as abundant as it used to be.

Ellen Aikens, a researcher from the University of Wyoming, tracked mule deer as they surfed the green wave. In comparison to wet years, the green-up lasted across the landscape for about half as long in drought years and was also fragmented. Although the deer were able to keep up with the faster green wave, the nutritional value was lower, leaving the animals less prepared for the challenges of the year ahead.

Meanwhile in Europe, the population of Bewick’s swans that spend the winter in the Netherlands is declining. But when researchers looked at the data more closely, they found an increase in the wintering population of swans in Germany. It turns out that since the 1970s, the swans’ wintering habitat has shifted an average of 13 kilometers to the east each year.

“The swans like to spend time where it’s 5℃. And the temperature line has shifted in the same rate as the swans shifted eastward,” said Rascha Nuijten, an ecologist at the Netherlands Institute of Ecology.

These findings are important to our understanding of the conservation of migrant animals. When it comes to protecting a certain species, it’s not just about the current situation. Nature is dynamic. And the species that is present now might not be present in 10 years, not because we didn’t protect it but because maybe it is dynamic in its way. We need to include the dynamics of nature into our legislation and management.

【推荐3】The shy, 8-year-old rescue dog, with brown spots was lost in the winter cold.

Her owner, Charles Reigies, remembers the moment she disappeared, the day after Christmas. He and his girlfriend, Hanna Poscente, were driving back home in one of the first storms of the season. Reigies hit a black ice. The Jeep crashed onto its side. “When I came to myself, she was hurt and the dog was gone,” he said.

It was dark out and they were miles from any town, two hours from home. An ambulance rushed Poscente to a hospital with a broken neck. As Reigies waited for a tow truck (拖车), he kept searching for Mia in the snow. But there were no signs of her.

The next day, Poscente restarted her Facebook account to post about Mia. She joined groups of lost-and-found pets across the region. Days passed. The posts were liked and shared. Strangers in small towns kept searching for Mia and posting daily updates online.

And if that village had a mayor, it would be Janet Cross, who lives about 20 minutes from the crash site. She had heard that pets will keep returning to where they’ve lost their people. So, 10 days after the crash, she set up a camera at the site. She could see that Mia was still coming back twice a day. It was hopeful. Mia was alive.

Over the next couple of weeks, people called and messaged with Mia sightings. And Charles and Hanna came back to check the crash site as often as they could. There were several near misses. Finally, Poscente received a call from a woman, saying “I’m looking at your dog.”

Thanks to the help of many people, Mia made it home.

【推荐2】What is sustainable travel? Traveling sustainably means being aware of the impact of tourism on the environment and following good practices to reduce the negative effects. Planet Earth has limited resources and mass tourism puts their existence at risk.     1     Nature, culture and history should be preserved, not commercialized to attract tourists.

Let’s find out a few easy ways to travel in an eco-friendly way.

Stay in eco-friendly accommodations.

From renewable energy production to bio-architecture, eco-friendly accommodations focus on preserving the environment and have positive environmental effects.     2     Staying in eco-friendly accommodations also supports the local economy. In fact, most environmentally friendly accommodations offer zero-kilometer, organic food.

Take public transportation.

    3     By using public transport, the number of cars on the roads decreases and less carbon dioxide (二氧化碳) is released into the atmosphere. Also, fewer vehicle s reduce traffic congestion(阻塞) on the roads.

    4    

Interaction with locals is one of the most rewarding things about sustainable travel and preserves traditions passed down from generation to generation. It is essential to respect traditions as they form the identity of the local community and create a sense of unity among people.

Say NO to single-use plastics.

Saying NO to single-use plastics reduces pollution. The production of plastics uses fossil fuels(化石燃料) and therefore releases carbon dioxide into the atmosphere, contributing to climate change.     5     As tourists, we should be mindful of how we travel and our impact when we arrive at a destination.

【推荐3】“The number of sightings has fallen during lockdown, although pigeons are increasing”, reports Mark Bridge, an editor of BBC Gardeners World Magazine. He notes that sightings of some of Britain’s best-loved garden birds have fallen, blaming the reduction on fewer hedges (篱) and over “tidy” gardening.

The annual review by BBC Gardeners World Magazine found that blackbirds, house sparrows, blue tits (蓝山雀) were spotted less often than in previous years. Sightings of blackbirds were reported by only 85 percent of interviewees last year, down from 90 percent in 2018. The number of interviewees reporting sightings of house sparrows fell from 79 percent to 75 percent in the same period, with a similar decline from 80 percent to 75 percent for blue tits.

Lucy Hall, the magazine chief editor, said, “while watching wildlife has been a great distraction from the pandemic, this decline in common UK bird species is a huge concern.” Hall said that reasons for the decline included the reduction of hedges as people smartened their living surroundings. “More hedges are coming down,” she said. “People are also transforming front gardens for parking. So the sorts of habitats we’ve provided... are being ripped out.”

“As an old Chinese saying goes, when the water is too clear, there are no fish. ‘Birds’ need as lightly messy space,” she said. “They need leaf litter, a bit of rotting wood at the back of a hedge. If you haven’t got a caterpillar, the blue tit has nothing to feed on. The good news is we can all do something to help make a big difference whether it’s filing bird feeders or installing bug boxes and log (原木) piles.”

While some species were in decline, others appeared to be going well. The number of interviewees seeing feral pigeons was up by eight percentage points to 59 percent since 2018. Common gulls were also up, while robins were the birds seen by the greatest number of interviewees at 91 percent.