management of astrocaryum chambira (arecaceae) for

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Management of Astrocaryum chambira (Arecaceae) for handicraft production in the Colombian Amazon Néstor García 1 & Gloria Galeano 2 Astrocaryum chambira (chambira or cumare) is one of the most important palm species for the indigenous communities of the northwestern Amazon, as the fibers obtained from its unexpanded leaves are used to make a great variety of handicrafts. In the last decades, chambira products have gained great acceptance among tourists and craft stores, and the palm has become an important source of cash income for indigenous families. The frequent extraction, sometimes done in a destructive way, has caused depletion of natural populations at some places. In order to generate recommendations for its sustainable management, we studied the use and management of the palm among the indigenous people in the southern Colombian Amazon. Species and study area Astrocaryum chambira is a solitary and spiny palm, to 27 m tall. It grows in the western Amazon region, from Venezuela to Peru and western Brazil; in Colombia it grows in wet lowlands, in terra firme, and in gallery forests at 100500 m of elevation; it is scarce in forests, and is often planted or preserved in slash-and- burn plots. Methods We used semistructured interviews and field observations to characterize chambira harvest, processing, and marketing. Between 2009 and 2012 we visited four communities and two marketing centers, where eight women and four men were interviewed. Additional information from other areas was gathered from published and gray literature. In order to assess the state of populations and the availability of the resource, we recorded palms using plots or transects at three harvest places, as well as an area where the palm is not used. Leaf production rate was calculated following 50 palms during one year. The use of chambira fiber has been recorded among 21 aboriginal groups in the Colombian Amazon, where hand bags, bracelets, hammocks, necklaces, placemats, trays and a great variety of other artifacts are made out of it. Harvested palms are found near human settlements, both in active crop plots and in old plots, fallows, and secondary forests. Current management of chambira ranges from sparing individuals and favoring their development, to totally elimination of plants for harvest. Additionally, some informants claim that the ancestral use of transplanting seedlings into their forest plots is still practiced. Fiber is obtained from unexpanded leaves of the largest acaulescent or of the lowest stemmed palms. Large acaulescent palms appropriate for harvest had 49 leaves, each with 78116 leaflets per side (X: 97.38; DS: 11.38; n: 16); it takes a palm 19 years to reach the minimum size of harvest and produces less than two leaves per year on average (X: 1.59; DS: 0.81; n: 43). Lowest stemmed palms are usually individuals with a stem up to 2.2 m tall, with 6-17 leaves (X: 10.67; DS: 3.93; n: 6), mostly not yet reproductive, and they produce ca. 3 leaves per year (X: 2.89; DS: 0.44; n: 32). Spear leaves are harvested when they are close to expanding, and measure 3.54 (6) m long. Fibers are twisted to produce strong strings, from which the handicrafts are made. On average, 150180 g (X: 164; DS: 11.14; n= 5) of dry fiber are obtained from a spear leaf, and this amount produces 133159 m of string (1 m = 1.13 g). One or two spear leaves are required to produce a hand bag, and up to eight to produce a hammock (Table 1). Although chambira handicrafts are found throughout the Colombian Amazon region, the market for chambira products is centered at the towns of Leticia and Puerto Nariño, and at most indigenous villages along the Amazon River, the areas most visited by tourists. Revenues from chambira represent 40100% of all cash incomes of indigenous families involved in fiber harvesting and processing. The highest income is obtained when products are sold directly to tourists at the indigenous villages. When products are sold in shops in Leticia or Puerto Nariño, revenues decrease up to more than 50%. Cutting down taller palms to get the spear leaves is an obstacle for the sustainable management of chambira in the Amazon basin. Our data reveal a scarcity of stemmed palms in areas of intense use near Leticia (Table 2). Artisans claim that at some communities along the Amazon River there are no more productive palms, and people must buy fiber in neighboring areas in Colombia or Peru. Based on our own data we recommend: to harvest every other leaf, which would mean 1 leaf/palm/yr in acaulescent palms, and 12 leaves/palm/yr in stemmed palms; to introduce appropriate tools for harvesting; and to harvest the leaflets of acaulescent palms without cutting the spear leaf. Throughout the northwestern Amazon, chambira is one of the few sources of local income for indigenous people, and therefore it remains important in spite of unfair prices. The future of the craft will be linked to a regional developmental strategy focused on non-destructive harvest, enriched agroforestry systems, and better market chains. Astrocaryum chambira growing in Amazon homegardens, Colombia Tikuna man harvesting A. chambira spear leaves Tikuna woman processing A. chambira leaflets Tikuna woman Twisting A. chambira fibers Bracelets made with A. chambira fibers Hans bag made with A. chambira fibers Table 1. Some products made by the Tikuna of the Colombian Amazon River using A. chambira fiber. Time of manufacture includes only string twisting and product weaving. Table 2. Density of A. chambira at two localities of the Colombia Amazon Tikuna man harvesting A. chambira spear leaves Hábito de Astrocaryum standleyanum 1 Departamento de Biología. Facultad de Ciencias. Pontificia Universidad Javeriana. Bogotá. e-mail: [email protected] 2 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Apartado 7495, Bogotá. e-mail: [email protected] Acknowledgments. Inhabitants of San Martín de Amacayacu, Tarapacá, and La Chorrera (Colombian Amazon), Palm Harvest Impacts in Tropical Forest PALMS (European Commission, contract No. 212631), COLCIENCIAS (grant No. 110148925263), DIB- Universidad Nacional de Colombia (Project No. 15091), Pontificia Universidad Javeriana, and program “Socios para la Conservación de la Amazonia-Andina Colombiana”. Tikuna woman weaving handicrafts with A. chambira fibers Product Weight (g) Number of leaves Time of production (hr) Price (USD) Small hand bag (14x16 cm) 60 0.3 8 6 Medium-sized hand bag (26x27 cm) 190 1 25 14 Large hand bag (31x28 cm) 300 2 30 17 Large bracelet (4 cm wide) 13 0.08 3/4 3 Hammock 1300 8 160 51 Locality Individuals/ha Total Seedlings Juveniles Subadults Adults San Martín de Amacayacu 944 260 10 12 1226 km 13 road Leticia- Tarapacá 160 390 15 10 575 Colombian Amazon indicating locations of villages, towns and rivers mentioned in the text

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Page 1: Management of Astrocaryum chambira (Arecaceae) for

Management of Astrocaryum chambira (Arecaceae) for

handicraft production in the Colombian Amazon

Néstor García1 & Gloria Galeano2

Astrocaryum chambira (chambira or cumare)

is one of the most important palm species for

the indigenous communities of the

northwestern Amazon, as the fibers obtained

from its unexpanded leaves are used to make

a great variety of handicrafts. In the last

decades, chambira products have gained

great acceptance among tourists and craft

stores, and the palm has become an

important source of cash income for

indigenous families. The frequent extraction,

sometimes done in a destructive way, has

caused depletion of natural populations at

some places. In order to generate

recommendations for its sustainable

management, we studied the use and

management of the palm among the

indigenous people in the southern Colombian

Amazon.

Species and study area Astrocaryum chambira is a solitary and spiny

palm, to 27 m tall. It grows in the western

Amazon region, from Venezuela to Peru and

western Brazil; in Colombia it grows in wet

lowlands, in terra firme, and in gallery forests at

100–500 m of elevation; it is scarce in forests,

and is often planted or preserved in slash-and-

burn plots.

Methods We used semistructured interviews and field

observations to characterize chambira harvest,

processing, and marketing. Between 2009 and

2012 we visited four communities and two

marketing centers, where eight women and four

men were interviewed. Additional information

from other areas was gathered from published

and gray literature. In order to assess the state of

populations and the availability of the resource,

we recorded palms using plots or transects at

three harvest places, as well as an area where

the palm is not used. Leaf production rate was

calculated following 50 palms during one year.

The use of chambira fiber has been recorded among 21 aboriginal groups in the Colombian Amazon, where hand bags, bracelets, hammocks, necklaces,

placemats, trays and a great variety of other artifacts are made out of it. Harvested palms are found near human settlements, both in active crop plots and in

old plots, fallows, and secondary forests. Current management of chambira ranges from sparing individuals and favoring their development, to totally

elimination of plants for harvest. Additionally, some informants claim that the ancestral use of transplanting seedlings into their forest plots is still practiced.

Fiber is obtained from unexpanded leaves of the largest acaulescent or of the lowest stemmed palms. Large acaulescent palms appropriate for harvest had

4–9 leaves, each with 78–116 leaflets per side (X: 97.38; DS: 11.38; n: 16); it takes a palm 19 years to reach the minimum size of harvest and produces less

than two leaves per year on average (X: 1.59; DS: 0.81; n: 43). Lowest stemmed palms are usually individuals with a stem up to 2.2 m tall, with 6-17 leaves

(X: 10.67; DS: 3.93; n: 6), mostly not yet reproductive, and they produce ca. 3 leaves per year (X: 2.89; DS: 0.44; n: 32). Spear leaves are harvested when

they are close to expanding, and measure 3.5–4 (–6) m long.

Fibers are twisted to produce strong strings, from which the handicrafts are made. On average, 150–180 g (X: 164; DS: 11.14; n= 5) of dry fiber are obtained

from a spear leaf, and this amount produces 133–159 m of string (1 m = 1.13 g). One or two spear leaves are required to produce a hand bag, and up to

eight to produce a hammock (Table 1). Although chambira handicrafts are found throughout the Colombian Amazon region, the market for chambira products

is centered at the towns of Leticia and Puerto Nariño, and at most indigenous villages along the Amazon River, the areas most visited by tourists. Revenues

from chambira represent 40–100% of all cash incomes of indigenous families involved in fiber harvesting and processing. The highest income is obtained

when products are sold directly to tourists at the indigenous villages. When products are sold in shops in Leticia or Puerto Nariño, revenues decrease up to

more than 50%.

Cutting down taller palms to get the spear leaves is an obstacle for the sustainable management of chambira in the Amazon basin. Our data reveal a

scarcity of stemmed palms in areas of intense use near Leticia (Table 2). Artisans claim that at some communities along the Amazon River there are no

more productive palms, and people must buy fiber in neighboring areas in Colombia or Peru.

Based on our own data we recommend: to harvest every other leaf, which would mean 1 leaf/palm/yr in acaulescent palms, and 1–2 leaves/palm/yr in

stemmed palms; to introduce appropriate tools for harvesting; and to harvest the leaflets of acaulescent palms without cutting the spear leaf.

Throughout the northwestern Amazon, chambira is one of the few sources of local income for indigenous people, and therefore it remains important in spite

of unfair prices. The future of the craft will be linked to a regional developmental strategy focused on non-destructive harvest, enriched agroforestry

systems, and better market chains.

Astrocaryum chambira growing in Amazon homegardens, Colombia

Tikuna man harvesting A. chambira spear leaves Tikuna woman processing A. chambira leaflets Tikuna woman Twisting A. chambira fibers

Bracelets made with A. chambira fibers Hans bag made with A. chambira fibers

Table 1. Some products made by the Tikuna of the Colombian Amazon River using A. chambira fiber. Time of manufacture includes

only string twisting and product weaving.

Table 2. Density of A. chambira at two localities of the Colombia Amazon

Tikuna man harvesting A. chambira spear leaves

Hábito de Astrocaryum standleyanum

1 Departamento de Biología. Facultad de Ciencias. Pontificia Universidad Javeriana. Bogotá. e-mail: [email protected]

2 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Apartado 7495, Bogotá. e-mail: [email protected]

Acknowledgments. Inhabitants of San Martín de Amacayacu, Tarapacá, and La Chorrera (Colombian Amazon), Palm Harvest Impacts in Tropical Forest – PALMS (European Commission, contract No. 212631), COLCIENCIAS (grant No. 110148925263), DIB- Universidad Nacional

de Colombia (Project No. 15091), Pontificia Universidad Javeriana, and program “Socios para la Conservación de la Amazonia-Andina Colombiana”.

Tikuna woman weaving handicrafts with A. chambira fibers

Product Weight (g) Number of leaves

Time of production (hr)

Price (USD)

Small hand bag (14x16 cm) 60 0.3 8 6

Medium-sized hand bag (26x27 cm)

190 1 25 14

Large hand bag (31x28 cm)

300 2 30 17

Large bracelet (4 cm wide)

13 0.08 3/4 3

Hammock 1300 8 160 51

Locality Individuals/ha

Total Seedlings Juveniles Subadults Adults

San Martín de Amacayacu 944 260 10 12 1226

km 13 road Leticia-

Tarapacá

160 390 15 10 575 Colombian Amazon indicating locations of villages, towns and rivers mentioned in the text