Mountain chicken

Mountain chicken. The mountain chicken is a critically endangered species of frog belonging to the family Leptodactylidae. Once abundant on several Caribbean islands, it is now restricted to the islands of Dominica and Montserrat. This large, nocturnal amphibian is known for its loud calls and its unusual reproductive behavior, which includes the construction of a foam nest.

Description and taxonomy

The mountain chicken is one of the world's largest frogs, with females capable of reaching over 20 centimeters in length and weighing more than 900 grams. It was first described by the German-born British zoologist Albert Günther in 1868. The species exhibits significant sexual dimorphism, with females being substantially larger than males. Its skin is smooth and varies in color from dark brown to a more reddish hue, often with darker markings. The frog's common name is derived from the taste of its flesh, which was said to resemble that of chicken. Historically, it was confused with other members of the genus Leptodactylus found in South America, but genetic studies have confirmed its distinct taxonomic status.

Habitat and distribution

Historically, the mountain chicken was found on multiple islands in the Lesser Antilles, including Guadeloupe, Martinique, Saint Kitts, and Nevis. Its current range is now limited to the volcanic islands of Dominica and Montserrat. It primarily inhabits moist forests, ravines, and steep-sided valleys, often near permanent streams or springs. The species is dependent on high humidity and requires specific microhabitats for breeding, such as burrows or hollows that can hold water. The catastrophic eruption of the Soufrière Hills volcano on Montserrat in the late 1990s destroyed a significant portion of its habitat on that island.

Behavior and ecology

A nocturnal and terrestrial predator, the mountain chicken feeds on a wide variety of invertebrates, including crickets, millipedes, and tarantulas, as well as smaller vertebrates. Its most notable behavioral trait is its unique reproductive strategy. Males call from burrows to attract females, and after mating, the female whips a foam nest from secretions to protect the eggs. The tadpoles develop within this nest, feeding solely on unfertilized eggs provided by the female, a form of oophagy. This frog plays a significant role in its ecosystem as both a predator and prey, and its loud, distinctive call, often compared to a distant barking dog, is a characteristic sound of the night in areas where it persists.

Conservation status and threats

Listed as Critically Endangered on the IUCN Red List, the mountain chicken faces an extremely high risk of extinction in the wild. Its population has collapsed by over 90% since the 1990s due to multiple threats. The primary cause of decline is the amphibian disease chytridiomycosis, caused by the fungal pathogen Batrachochytrium dendrobatidis. This disease reached Dominica in 2002 and Montserrat in 2009, causing rapid mass mortality. Additional threats include historical hunting for food, habitat loss from agriculture and volcanic activity, and predation by introduced species like feral cats and mongoose. Conservation efforts are led by groups like the Durrell Wildlife Conservation Trust and the Zoological Society of London, involving captive breeding programs, biosecurity measures, and habitat protection.

Cultural significance

The mountain chicken has held a prominent place in the culture and cuisine of Dominica and Montserrat, where it was once a common and prized food source, leading to local festivals centered around its consumption. Its image has been featured on postage stamps issued by Dominica, and it is considered a national symbol of both islands. The species' dramatic decline has transformed it into a potent symbol for conservation biology and the global amphibian extinction crisis, featuring in international media and educational campaigns by organizations such as the Amphibian Ark.

Category:Frogs of the Caribbean Category:Critically endangered amphibians Category:Endemic fauna of the Lesser Antilles