Sunday Species Snapshot: Alaotran Gentle Lemur

A primate that lives only in wetlands? That alone makes the Alaotran gentle lemur unique. But this tiny lemur lives in incredibly limited constrained habitat, which continues to shrink around it.

Join Our Community of Science Lovers!

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American


A primate that lives only in wetlands? That alone makes the Alaotran gentle lemur unique. But this tiny lemur lives in incredibly limited constrained habitat, which continues to shrink around it.

Species name: Boy, this one has a lot of names, including the Alaotran gentle lemur, Alaotra reed lemur, Lac Alaotra bamboo lemur and Lake Alaotra gentle lemur. In the Malagasy language, they are known as bandro. Scientifically they are either Hapalemur alaotrensis or Hapalemur griseus alaotrensis, as scientists are still trying to figure out if this lemur is its own species or a subspecies of the much more common eastern lesser bamboo lemur.

Where found: The marshlands around Lake Alaotra, Madagascar's largest lake, where—despite the word "bamboo" in so many variations of their name—the lemurs subsist upon papyrus, reeds and grasses. Their entire habitat totals about 100 square kilometers.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


IUCN Red List status:Critically endangered due to their extremely limited range and continuing population declines. The most recent count, conducted way back in 2004, put the lemur's population at 5,000 individuals, down from 7,500 to 11,000 a decade earlier.

Major threats: Habitat loss and hunting. The lemurs are eaten or sold into the pet trade, while much of their marshy habitat has been converted into rice fields. Some reed habitats have been burned to increase fishing. Reed burning is also used as a hunting technique. The lemur is protected under Madagascar law, and some of its habitat was conserved in 2003, but that has appears to have offered little relief.

Multimedia: You can catch a few seconds of these lemurs, including a mother and her child, below:

Notable conservation programs: The Durrell Wildlife Conservation Trust has a captive breeding and research program in conjunction with several other zoos. Durrell also has an education program in Madagascar which aims to increase local interest in preserving the lake and its marshland.

Photo by Jon Mountjoy via Flickr. Used under Creative Commons license

Previous Sunday Snapshots:

John R. Platt is the editor of The Revelator. An award-winning environmental journalist, his work has appeared in Scientific American, Audubon, Motherboard, and numerous other magazines and publications. His "Extinction Countdown" column has run continuously since 2004 and has covered news and science related to more than 1,000 endangered species. John lives on the outskirts of Portland, Ore., where he finds himself surrounded by animals and cartoonists.

More by John R. Platt

Subscribe to Support Independent Journalism

Great science journalism requires human expertise, time, effort and creativity. And it costs money. That’s why I and the journalists here at Scientific American hope you’ll join our community.

When you subscribe, you are supporting staff and freelance journalists who are passionate about telling science stories that are true, important and compelling. Our editors and reporters are often experts in their fields, which means they understand the nuances of big discoveries and can untangle the breakthroughs from the hype. With a subscription, you are also supporting rigorous fact-checking to ensure the words we publish are precise and accurate. And you’re supporting original illustrations, graphics and photos that bring you closer to an advanced laboratory, an ice sheet in Antarctica or a space mission in orbit. You’re helping us craft other types of high-quality journalism as well: Our newsletters are carefully written, edited and curated by staffers you have or will come to know and love. Our Science Quickly podcast is based on original reporting, collaboration with editors and scientists and exacting production.

Subscriptions keep this engine running so we can continue to deliver thoughtful, rigorous and independent science journalism to you. In an era of viral misinformation, this work is crucial. If you value what we do, I hope you’ll consider joining us as a subscriber

Thank you,

Jeanna Bryner, Editor in Chief, Scientific American

Subscribe