Table 4 Factors included in the risk index of native edible plant species interchanged

Ecological factors

Spatial distribution*

Wide distribution

Restricted distribution

98 plot sites to 1 plot

Temporal distribution*

Many months

One month

12 months to 1 month

Used Part Used Index (as Pieroni 2001)

Flowers and bud harvest

Whole aerial plant used

1.0 (as bark) to 3.0 (as whole aerial parts)

Life cycle

Perennial

Annual

Least intensive used (perennial 1), most harvesting (annual 2)

Socioeconomic factors

Number of markets

1 market

6 markets

1 to 6 markets

Number of stalls

One stall

Many stalls

1 to 9

Average price*

Lowest price (calculated per 1 kg)

Highest price (calculated per 1 kg)

$1.90 to $308.5

Sales Volume

Low

High

0.19 kg to 661.90 kg

Interchanged ways*

Many methods of interchange

Just with money

2 (interchanged by barter and money), 1 (interchanged just with money).

Management factors

Ecological Status*

Domesticated

Wild

Domesticated (3), Weed or ruderal (2), wild (1)

Management types*

Cultivated

Gathered (Foraged)

Cultivated (5) Protected (4), Promoted (3), Tolerated (2), Gathered (1)

Management Systems*

Intensive System

Natural Vegetation

Intensive system (5), Homegardens (4), Agroforestal System (3), Secundary Vegetation (2), wild vegetation (1)

Number of Uses*

More uses

Less Uses