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Table 2 Criteria of variables considered for analyzing sociocultural and ecologic factors that influence management intensity

From: Sociocultural and ecological factors influencing management of edible and non-edible plants: the case of Ixcatlán, Mexico

Matrix

Variables

Description

Criterion and values

Sociocultural

(matrix X)

Uses number

Total number of registered uses

1 per use

SI basic plants

Sutrop’s cognitive prominence index of plants considered as basic to live in Ixcatlán

0–1; 0 is a value assigned when no consultant mentioned the plant, and 1 is a theoretical value that a plant could have if all consultants mentioned it at first rank [39]

SI by use type

Sutrop’s cognitive prominence index of plants by category (edible, medicinal, ceremonial)

0–1; 0 is a value assigned when no consultant mentioned the plant, and 1 is a theoretical value that a plant could have if all consultants mentioned it at first rank [39]

Consumption

Proportion of families that have consumed the species for the analyzed use in the last 2 years

0–1

Use frequency

Frequency of consumption per availability season/year for analyzed use (2)

0 = never been consumed; 1 ≤ 5 times in their life; 2 ≥ 5 times in their life but not regularly; 3 = 1 time every 2 availability seasons; 4 = 1 a 2 times by availability season; 5 = 3 a 10 times by availability season

Recognized variants

Types or varieties recognized (1)

0 = no varieties are recognized; 1 = varieties are recognized for a plant, but each variety is a different species; 2 = varieties are recognized for a species but are used equally; 3 = varieties are recognized and have specialized use

Economic interchange

Type of commercial exchange (1)

1 = direct consumption; 2 = bartering; 3 = sold inside the village by collectors of the community or comers who obtain it in other places; 4 = harvested inside the village and are marketed outside (plants or products)

Reciprocity interchange

Type of exchange of reciprocity (1)

1 = direct consumption; 2 = it is given and received as a gift to/from others; 3 = it is offered in communal celebrations (harvested by sponsors celebration or families who offer the plants to sponsor celebration)

Sociocultural strategies

Strategies to obtain the plant when scarce or unavailable (1)

0 = nothing; 1 = mobility, look elsewhere; 2 = substitution for other species or products; 3 = store them; 4 = ask someone to give them; 5 = seek to obtain it by barter; 6 = buy them

Useful partsa

Number of useful parts

1 per used part

Harvest efforta

Invested effort in harvest in a journey (1)

1 = opportunist; 2 = journey dedicated to harvest the species

Tools for harvesta

Use of tools, supplies, and vehicles in harvest (1)

None, only hands are used; 1 = objects obtained at harvest site; 2 = knife, machete; 2 = Arundo donax pole, baskets, bags; 3 = load animals, vehicles, chainsaws

Ecological

(Matrix W)

Abundance perception

Abundance perception in the territory (2)

1 = very abundant; 2 = abundant; 3 = regular abundance; 4 = scarce; 5 = rare

Vulnerability

Plant vulnerability to factors affecting productivity, quality, and survival (2)

1 = nothing affects and always produces the same; 2 = plague, drought, steady harvest, others

Life cycle

Life cycle type of the species

1 = annual; 2 = perennial

Reproduction

Reproduction type of the species

1 = sexual and asexual; 2 = sexual

Harvested parts

Harvested parts for all use types of the plant in function of survival, resprouting, and reproductive capacity after useful part harvest (1)

1 = living individual; 1 = dry branches; 2 = exudates, thorns; 3 = leaves; 4 = sprout; 5 = mature branches (lignified tissue/flowers); 6 = fruits, seeds; 7 = bark; 8 = all flowers/fruits of the season; 9 = main stalk; 9 = roots; 10 = complete individuals

Nearness to harvest sitea

Closeness perception of harvest sites to consumption site (2)

1 = far away; 2 = far; 3 = not too far; 4 = near; 5 = at hand

Temporal availabilitya

Temporal availability of the useful part for the analyzed use (2)

1 = all year; 2 = months; 3 = weeks; 5 = days

Management

(Response matrix Y)

Collective regulations

Type of regulation for the harvest (1)

0 = without restrictions; 1 = there are “costumbres” traditions that indicate the techniques, quantity, and occasions of harvest; 2 = in addition to communal agreements aimed at regulating the access, they are aware that external institutions protect the species; 3 = complaints have been made or penalties imposed

Management practices

Management practice type (1)

1 = gathering, forage; 2 = gathering with care to avoid damaging the plant; 3 = tolerance; 4 = enhancement; 5 = protection; 6 = transplanting of individuals; 7 = propagation

Artificial selection

Selection of individuals and propagules (1)

0 = without selection; 1 = selection of individuals or parts that are collected for consumption; 2 = selection of tolerated, protected or enhanced individuals; 3 = selection of individuals from which seeds or cuttings are obtained to propagate

Management in AFS

Species presence proportion in homegardens, agricultural fields, and mescal factories

0–3

Practices numbera

Number of management practices carried out

1 by type of practices

Maintaining laborsa

Type of labors carried out to protect, enhance, and cultivate

1 = prepare soil; fix to hosts; exclusion of predators with fences, cages; removal of competitors; pruning, removing dried or diseased leaves; mechanical support; addition of forest soil, sand, ash, residues of organic matter; addition of lime

2 = irrigation

3 = infrastructure and special equipment for maintenance

 

Management system typea

System type where plant is managed with respect to species natural distribution (1)

1 = wild vegetation where plants are distributed naturally; 2 = homegardens, gardens in mescal factories or “palenques,” and agricultural fields, where plants are naturally distributed; 3 = homegardens, mescal factories, and agricultural fields, where plants have been carried; 4 = greenhouses and nurseries

  1. Numbers in variable description indicate the following: (1) addition of the different values registered for the species; (2) average of category values mentioned by consultants
  2. aVariables not included in principal component analysis and partial canonical analysis