Astrocaryum carnosum

Common Name 1

Spanish: Huicungo

Location 1

This species is known only from the upper Huallaga valley, between Tocache to Tingo María in central Peru. Restricted range. It is known from few locations where its total extent of occurrence (EOO) is approximately 5,335 km2.

Description 1

Rhynchophorine weevils (Dynamis borassi) use this species as a host for larval development (Couturier et at, 1998).
Resilient to habitat transformation because of its clustering habit and underground suckering.

Habitat Type 1

Habitat in which this species resides is being threatened and lost by deforestation for agriculture. The upper Huallaga valley, where this palm grows, is where most of the world’s cocoa is grown (more than 30 %). In 1992, the 'Palmas del Espino' oil plantation was within 20 km of the then dense populations of this palm (Couturier 1992), therefore further expansion of this plantation could further the impact the dense populations of this palm.

Grows in forests on alluvial soils (Kahn et al. 1992) and seasonal swamp forest (Kahn 2008), where it dominates the understory with two other palm species,Phytelephas macrocarpa and Chelyocarpus ulei. These forests are periodically flooded by the Huallaga River in February and March. The average rainfall in this area is 3,000 mm with a peak from December to March and a dry period from June to August. The average annual temperature is 26°C. This genus is known to colonize deforested areas and secondary forest (Couturier et al. 1992).

References 1

Couturier, G., O’Brien, C.W., Kahn, F. (1998). Astrocaryum carnosum and A. Chonta (Palmae), New Host for the Weevil Dynamis borassi (Curculionidae:Rhynchophorinae). Principes. 42(4), 227-228.

Loftus, C. 2013. Astrocaryum carnosum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. . Downloaded on 25 February 2014.

Couturier, G. and Kahn, F. 1992. Notes on the insect fauna on two species of Astrocaryum(Palmae, Cocoeae, Bactridinae) in Peruvian Amázonia, with emphasis on potential pests of cultivated palms. Bulletin de l'Institut Français d'Etudes Andines 21(2): 715-725.

Couturier, G., O'Biren, C.W. and Kahn, F. 1998. Astrocaryum carnosum and A. chonta(Palmae), new host for the weevil, Dynamis borassi (Curculionidae: Rhynchophorinae).Principes 42(4): 227-228.

Kahn, F. and Millán, B. 1992. Astrocaryum (Palmae) in Amazonia A Preliminary Treatment.Bulletin de l'Institut Francais d'Etudes Andines 21: 459-531.

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