Plants & People: The Intersection of Botany and Human Experience

Aguaje: Tree of Life

Historical Beliefs of Mauritia flexuosa

The Maijina, Is one of Peru’s indigenous groups that bases their culture around the Amazon basin near the city of Iquito. They are deeply rooted within the habitat and ecology of Mauritia flexuosa, holding vast ecological knowledge. The Maijina has historically inhabited the Yanayacu River, the Napo and Putumayo rivers, and as a result have formed folklore in connection to 7 major aguajales/swamps areas. One of these aguajales, which the Maijina have named Gogobai ni cuadu, is believed to be associated with a malevolent female spirit, Gogobai. It is widely believed by the community that Gogobai reside within the aguajales, but on occasions will leave the jungle and wander around the communities, only to prey on children, lead them back to the aguajales and eat them. Gogobai appears to at times be invisible and when abducting children, take on the form of a woman similar to the mother of the child. This traditional Maijuna story highlights the dangers that Gogobai pose to Maijuna children, however, this does not prevent the entry of all family members to aguajales for the collection of the aguaje fruit. (Story information retrieved from consultant testimony in Gilmores, 2013)

Botanical Aspects (vegetative and reproductive)

Mauritia flexuosa, part of the Arecaceae family, is a palm tree that can grow up to 35 meter in height and 35 cm in diameter. Adult specimens are polygamous, with male, female and bisexual inflorescence on separate specimens, making it difficult to differentiate before any flowering occurs. Only the "females produce the fruits, with the pollination of the male flowers. There are an average of 10-25 costapalmate leaves, 6 meter in length, with a petiole of 1.6-4 meters in length. Its leaves compose the spherical crown of the palm tree. There are an average of 8 inflorecensce each 2-3 meter long, each containing approximately 115 flowers, which adds up to 45,000 flowers per blossom  The fruit is characterized by its ellipsoid oval-shaped drupe covered by red or dark red-coloured cornea scales. It is between 5-7cm long and 4-5 cm in diameter. Both female and male agauje trees reach flowering at the age of 7-8, but only start producing commercial yields after 2 decades. (Koolen et al.,2018)(Vasquez et al., 2008)(Santos, 2005)

Expansion and Domestication History 

Although pollen records corresponding to Mauritia flexuosa within South America reveal that this palm tree has been present for the past four ice age cycles, it was held in small but widely distributed regions across the Amazon (Rull and Montoya, 2014). These sites likely restricted Mauritia flexuosa to small regions with favorable climate conditions for growth, often referred to as microrefugia. (Rull and Montoya, 2014). Mauritia flexuosa only expanded its domain with climate shift during the Holocene nearly 2000 years ago, when it underwent a remarkable expansion in most parts of northern South America (Montoya et al., 2009, 2011). This expansion from a series of small sites to what is now the most abundant palm tree across the Amazon, leads to the question of how or who instigated such an expansion. Though it has been theorized that humans might have domesticated and cultivated Mauritia flexuosa at large scales in the past (Triana & Molina, 1998), no conclusive evidence has been presented for this case. In answering the mystery that is the expansion of Mauritia flexuosa, through a genetic survey of Mauritia palm communities across several river sites in the amazon, it was found that the direction of gene flow between populations fell in line with the direction of river basin from which they grew from (Sanders, 2018), pointing to the realization of seed dispersal as the main contributing factor for the expansion of Mauritia flexuosa along river streams after the ice age.

 
Human Experience

Today Mauritia flexuosa palm has substantial economic importance, the aguaje fruit is regarded as an amazonian staple for its unique flavor, abundance and nutritional value. Sellers, known as "rematistas" in the area, purchase the fruit, mainly by women  (single, widowed, divorced, etc.) from (15 to 82) years old. These merchants sell the fruit as mashed aguaje, unripe fruit, and processed items like popsicles at the main marketplaces, minor markets, and factories. For this reason, the fruit has gathered large popular and commercial diversity, often consumed raw in beverages, ice cream, frozen and much more. Iquito, the biggest peruvian city within the Amazon basin, has been estimated to consume 148.8 metric tons of aguaje fruit per month, which when compared to traditional methods of harvesting includes the cutting of adult female trees (Delgado, 2007). This growing demand for the fruit is not unique to Iquito, in other amazon region such as Loreto (Peru) and Maranhao (Brazil) the growing demand for agauje products have led to the overall overexploitation of aguajales (Sampaio et al. 2012). The economic incentive for cutting down aguaje palms threatens the communities who depend on the resources.

Aguaje is widely used by the communities along the rivers and swamps and has been referred to as the “tree of life”, with no small title, aguaje provides an array of resources, services and benefits as a daily food staple (Barros & Da Silva, 2013). In Brazil, the riverine people hold extensive knowledge of the palm tree, with their own cultural management practices for agaugales in order to harvest the fruit in a viable way to prevent the cutting of the palms (Sakai, 2017). Additionally, there seems to be strong generational ties within the riverine people of Brazil, where the harvesting of the aguege is done collectively by all members of the family, incorporating the young in such a manner that the traditional knowledge for harvesting gauge is appropriate by the next generation (Barros, 2021).  

In Peru, where aguaje is the name for Mauritia flexuosa, its name is associated with the presence of water “agua”. There regions characterized by the growing of aguaje palms near bodies of water, either swamps, rivers of wetlands, are referred to as "Aguajales” and their associated resources have been and continue to be  culturally significant for its inhabitants (Gilmore, 2013). Not only does aguaje mean a source of nutrition for humans but for the series of organisms that also rely on the fruit of aguajales for food. Approximately 20 distinct animal species consume Mauritia flexuosa fruit and are hunted in Mauritia flexuosa palm swamps, according to experts. There are 13 mammalian species, 6 bird species, and 1 reptile species, all of which are consumed and somewhat more than half (55%) are sold as game meat. (Gilmore, 2013). And though a large chunk of people depend on aguajales as a source of income, another large number of people who inhabit the areas near the rivers make most of their financial income from raising cattle and livestock, as well as hunting near these waterways (Barros, 2021).

Works Cited

 

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