Qualla: Lake Alaotra

Lake Alaotra: Introduction

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit krishna naudin, CC BY-SA 2.0. There is a lemur that never touches a tree. It is born in the reeds, sleeps in the reeds, swims between the reeds when it must, and dies in the reeds - the only primate on Earth tied entirely to a marsh. The Malagasy call it bandro. It lives in one place and one place only: the wetlands fringing Lake Alaotra, the largest lake in Madagascar, set high on the island's central-northern plateau. The open water spreads across some 900 square kilometres, but it is shrinking and shallowing year by year, and the fate of the bandro is bound up with the fate of a landscape that feeds much of a nation even as it disappears.

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Image: krishna naudin | CC BY-SA 2.0

Lake Alaotra: The Rice Bowl of Madagascar

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit NASA, Public domain. Alaotra is not wilderness. The fertile plain wrapped around the lake is the single most important rice-growing region in a country where rice is life - eaten at nearly every meal, woven through the language and the economy alike. The basin and its wetlands sprawl over more than 7...

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Image: NASA | Public domain

Lake Alaotra: The Lemur in the Reeds

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit NASA, Public domain. The Alaotra gentle lemur is a small, grey-brown bamboo lemur that evolved to do something no other lemur does - abandon the forest entirely for a life among cyperus and reed. The marsh is its whole world. That makes it exquisitely vulnerable, because its world can be burned in an...

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Image: NASA | Public domain

Lake Alaotra: What the Lake Has Already Lost

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit NASA, Public domain. Alaotra keeps a quiet ledger of extinction. The Alaotra grebe - a small diving waterbird found nowhere else - was last reliably seen in 1985 and declared extinct in 2010, undone by introduced predatory fish that ate its young and nylon gill nets that drowned the adults as they di...

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Image: NASA | Public domain

Lake Alaotra: A Lake Filling With Its Own Hills

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit NASA, Public domain. The slow crisis at Alaotra is written in mud. The hills ringing the lake were once forested; cleared for farmland, their bare slopes now bleed soil with every rain. That eroded earth pours into the lake and settles, so the water grows shallower season by season - in the dry month...

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Image: NASA | Public domain