Qualla: Luba Crater Scientific Reserve

Luba Crater Scientific Reserve: Introduction

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Shoshana Sommer, CC BY-SA 4.0. It takes two days on foot to reach the floor of the Gran Caldera de Luba. The crater walls drop nearly vertically for a thousand meters, and when a Spanish expedition from the Technical University of Madrid descended by rope in 2007, their guides had to hack through the jungle below with machetes. They collected over 2,000 specimens of plants and animals, including 250 types of butterfly. Perhaps 100 of the species were new to science. This is what isolation buys on Bioko: a volcanic island off the coast of West Africa where the forests inside a shield volcano have remained, until recently, beyond the reach of anyone who might empty them.

Image: Shoshana Sommer | CC BY-SA 4.0

Luba Crater Scientific Reserve: An Island on the Continental Shelf

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Shoshana Sommer, CC BY-SA 4.0. Bioko sits on the African continental shelf and was likely connected to the mainland until the last ice age ended roughly 10,000 years ago. It belongs to the Cameroon line, a chain of volcano-capped swells stretching nearly 1,000 kilometers from the island of Pagalu in the southw...

Image: Shoshana Sommer | CC BY-SA 4.0

Luba Crater Scientific Reserve: The Wettest Mountain

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Shoshana Sommer, CC BY-SA 4.0. Prevailing humid winds drench the Caldera de Luba with up to 10,000 millimeters of rain per year, making it one of the wettest places on Earth. Temperatures in the lower regions range from 17 to 34 degrees Celsius. This relentless moisture feeds layered forests: closed rainforest...

Image: Shoshana Sommer | CC BY-SA 4.0

Luba Crater Scientific Reserve: Africa's Primate Stronghold

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Atamari, CC BY-SA 3.0. The Gran Caldera de Luba holds some of the highest primate densities recorded anywhere in Africa, with 1.2 to 3.3 encounters per square kilometer. Five primate species here are of global conservation concern: Preuss's monkey, the red-eared guenon, the black colobus, the western r...

Image: Atamari | CC BY-SA 3.0

Luba Crater Scientific Reserve: Bushmeat and the Price of Oil

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Shoshana Sommer, CC BY-SA 4.0. In the early 1980s, a commercial bushmeat market took root in Malabo, the capital on Bioko's north coast. Offshore oil discovery pumped money into the economy, increasing the number of people who could afford what had become a luxury food. Improved roads provided easier access to...

Image: Shoshana Sommer | CC BY-SA 4.0

Luba Crater Scientific Reserve: Holding the Line

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Shoshana Sommer, CC BY-SA 4.0. Conservation efforts began in 1995 when the Spanish organization Asociacion Amigos de Donana launched a program focused on green sea turtle protection. Since 1998, the Bioko Biodiversity Protection Program, a partnership between the National University of Equatorial Guinea and Dr...

Image: Shoshana Sommer | CC BY-SA 4.0