1158218272

1158218272

Fallen maple leaves

Photo by: Yue Xing Yidhna Wang

Yue Xing Yidhna Wang

Time is Running Out for Maple Trees

By: Lucy Sherriff

More than one in five species of maple trees faces extinction a shocking new report has revealed, while also warning that 75% of the threatened species are “geographically restricted” in their native regions.

October 08, 2020

The Botanic Gardens Conservation International (BGCI) revised its ‘Red List of Acer’ — the category of trees and shrubs that are commonly known as maples — and highlighted an elevated threat for 36 species of the tree. Seven are critically endangered, 14 are endangered, and 15 are vulnerable to extinction.

Knocked Down by Disease

The trees are experiencing a vast decline in habitat, due to urban development, timber harvesting, and agricultural expansion. "Time is running out for the world’s biodiversity,” said Douglas Justice, associate director at the University of British Columbia Botanical Garden.

“Every recent survey of plants and animals in the wild points to this. And as robust as Acer species are, they are certainly not immune.” He continued, “This is happening nearly everywhere that rarer maples exist. And because of climate change, the narrow habitats that support species at the margins of arid places and at the tops of mountains are quickly disappearing.”

Where?

1192956221

1192956221

Maple trees with red leaves in the bushes near West Lake, Hangzhou, China. .

Photo by: lingqi xie

lingqi xie

The trees can be found in subtropical and tropical regions, as far south as Indonesia. The only species found in the UK, the field maple is not under threat. Not only are the trees a popular ornamental feature in parks and public spaces, they are a key component of the natural ecosystem in woodlands, as well as being an important timber crop in several countries.

Although the North American sugar maple, which produces maple syrup, is not endangered, two of the closest relatives to the species are.

China is home to the largest proportion of maples with 92 species. It has seen a number of trees become endangered due to urban sprawl. Some 14 of the 23 Acers at risk of extinction in the country are only found in China and have small populations and limited geographical ranges."We still have an opportunity to save species from extinction, but it will take expertise and resources, and the co-ordinated, collaborative efforts by the world’s botanical gardens to make it work," Justice added.

The Game Plan

1194773030

1194773030

In Hangzhou, China, a large area of red maple is planted beside the pavilion for tourists to rest on the West Lake. Every autumn, maple leaves turn red, attracting a large group of tourists here to stop and enjoy.

Photo by: lingqi xie

lingqi xie

The report notes that conserving at-risk species in their natural habitat is the best conservation tactic. But collections in botanical gardens and seed banks — called “ex situ collections” can act as insurance policies against extinction. There are currently 14 species of maple, including four that are critically endangered, that are absent from these types of collections.

One species in Mexico, the Acer binzayedii, is in “desperate need of conservation” despite only being discovered in 2017. “It is at risk from climate change in its remnant cloud forest habitat and threatened by grazing, logging, and forest fires while it is also absent from ex situ collections,” the report adds. The report recommends developing conservation plans, monitoring species currently not at risk to ensure populations are maintained, and adding those missing maple species to seed banks and the like.

BGCI is now establishing a Global Conservation Consortium (GCC) for the Acer trees to address the conservation needs of maple species. Through the consortium, maple specialists will work together to develop comprehensive strategies to manage and deliver conservation action points for the species.

Next Up

Wolves Work Hard to Help Our Ecosystem

Wolf Awareness Week is October 18–24. This week is dedicated to understanding wolves and their impact on the ecosystem. Let's celebrate this beautiful creature and dedicate some time to learning more about them.

The 2020 Fat Bear Week Champion has been Crowned

This year's fattest bear champion is raising the bar for the jiggliest bear bod in the game. Mother Nature's out done herself with this annual hyperphagic marvel. See photos of the 2020 winner and some favorite memories from Fat Bear Week.

How to Keep Your Pets Safe on Halloween

October 27 is National Black Cat Day! In honor of that, here's how we can protect our pets on the scariest day of the year, Halloween!

Everything You Need to Know About the Fall Bird Migration

It’s fall, which means one thing: the autumnal bird migration.

Gobble Up These Thanksgiving Pet Safety Tips

With over 845,000 dogs and cats newly adopted and fostered this year amid COVID, Best Friends Animal Society offers some helpful tips on celebrating the holiday with your pet (safely).

Top Tips for Seeking Out Nature’s Best Winter Wildlife

It might be cold outside, but that doesn’t stop some of nature’s most beautiful wildlife from venturing out. In fact, there are a number of animals who are far more active during the winter months. Here's your guide on how and where to spot them. And don’t forget your binoculars.

Silver-backed Chevrotain Photographed for the First Time in the Wild!

First-ever photos and footage of the silver-backed chevrotain, tiny deer-like creatures, have been photographed in Vietnam after an intense search.

The Jaws Boat is Being Rebuilt, But This Time to Save Sharks

‘The ORCA’ may just be the most famous boat in the film industry. Immortalized by the thriller Jaws in 1975, the vessel relentlessly pursued the 25-foot, three ton-big shark. However a new reincarnation of the old classic boat will take on a new goal: to save sharks, not hunt them.

A Penguin's Waddle Is More Efficient Than Your Walk (Who's Laughing Now?)

Penguins swim with speed and grace, but on land, they're an adorable mess, heaving their portly bodies to and fro to shuffle one stubby little leg in front of the other. Well, don't be so quick to judge; that cartoonish walk is actually among the most efficient in the animal kingdom. It's even more efficient than yours.