Economic Botany

, Volume 68, Issue 2, pp 169–176 | Cite as

Revisiting Camu-camu (Myrciaria dubia): Twenty-seven Years of Fruit Collection and Flooding at an Oxbow Lake in Peruvian Amazonia

  • Meredith P. Martin
  • Charles M. Peters
  • Mark S. Ashton
Article

Revisiting Camu-camu (Myrciaria dubia): Twenty-seven Years of Fruit Collection and Flooding at an Oxbow Lake in Peruvian Amazonia Camu-camu (Myrciaria dubia HBK McVaugh; Myrtaceae) is an important riparian species in the floodplain forests of Peruvian Amazonia, and its fruits have been harvested commercially for over 30 years. We examined the population impacts of intensive fruit collection on this species by remeasuring a 1,000 m2 inventory transect that was established in 1984 in a dense stand of M. dubia along an oxbow lake. We found that regeneration rates had declined notably since the original survey, and that the number of M. dubia individuals had dropped from 693 to 161 genets. While this dramatic shift in population structure would appear to be caused by excessive fruit collection, the same decline in regeneration was noted for Eugenia inundata DC, an associated species of similar growth form and phenology that is not harvested. The life cycles of both species are closely tied to the rise and fall of the river. In addition to annual fruit collection, we suggest that the extreme hydrological events that have occurred in the Amazon Basin over the last few decades, as well as the successional development of the ox-box lake study site that has been slowly filling up with sediment, also play a role in the observed reduction in M. dubia numbers.

Key Words

Myrciaria dubia camu-camu Eugenia inundata non-timber forest product wild harvest oxbow lake ethnobotany 

Revisitando camu-camu (Myrciaria dubia): Veinte y siete años de la recolección de frutos y la inundación en una cocha en la Amazonía peruana

Revisitando camu-camu (Myrciaria dubia): Veinte y siete años de la recolección de frutos y la inundación en una cocha en la Amazonía peruana Camu-camu (Myrciaria dubia HBK McVaugh; Myrtaceae) es una especie importante en los bosques inundables de la de la Amazonía peruana, y sus frutas han sido cosechados comercialmente por más de 30 años. Examinamos el impacto de la cosecha intensiva de frutas en una población de esta especie por la re- medición de un transecto de inventario de 1,000 m2 que fue establecido en 1984 en un área densa de M. dubia al lado de una cocha meandro. Encontramos que las tasas de de regeneración había disminuido notablemente desde la encuesta original, y que el número de individuos de M. dubia había caído de 693 a 161 ginetas. Aunque este cambio dramático en la estructura de la población parece estar causada por la excesiva recolección de frutas, la misma disminución de la regeneración se observó por Eugenia inundata DC, una especie asociada con forma similar de crecimiento y de fenología pero que no es cosechada. Los ciclos de vida de ambas especies están estrechamente ligados a la subida y bajada del río. Además de la colecta anual de frutas, sugerimos que los fenómenos hidrológicos extremos que se han ocurrido en la cuenca del Amazonas en los últimos decenios, así como el desarrollo sucesional de la cocha de estudio que se ha llenanda lentamente con sedimentos, también fueron responibles por parte de la reducción observada en los números de M. dubia.

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Copyright information

© The New York Botanical Garden 2014

Authors and Affiliations

  • Meredith P. Martin
    • 1
  • Charles M. Peters
    • 2
  • Mark S. Ashton
    • 1
  1. 1.Yale School of Forestry and Environmental ScienceNew HavenUSA
  2. 2.New York Botanical GardenInstitute of Economic BotanyBronxUSA

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