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Table 3 Matrices used in the partial canonical ordination (CCA)

From: Influence of traditional markets on plant management in the Tehuacán Valley

Matrices

Variables

Description

Management (Response Matrix Y)

Ecological Status*

Conditions of habitat of a plant species, whether wild, weed or ruderal or domesticated

Management types*

Conditions of a plant’s management, whether gathered, tolerated, promoted, protected or cultivated

Management Systems*

Spatial systems where a plant is found, ranging from natural vegetation to intensive cultivation

Number of Uses

Sum of uses for each species, plus edible use, such as medicinal, forage, ornamental, etc.

Ecological (Matrix X)

Spatial distribution

Spatial availability or number of plots where a species was present on 98 plots (Table 2)

 

Presence in one o more of six vegetation types grouped by Valiente-Banuet et al. 2000 [36].

Temporal distribution

Temporal availability of the months than edible plants presents at markets.

Used Part Index

Plant used index (based on Pieroni 2001 [58].

Life cycle

Annual or perennial

Socioeconomic (Matrix W)

Number of markets

Market presence, between 6 markets and 1 market

 

Number of stalls

Average market stall were species plant is present

 

Average price

Average price of a plant species in all markets

 

Sales Volume

Total sales volume for a day in all markets

 

Interchanged ways

Transaction realized by barter and/or money or just by maize.

  1. * These variables were recategorized and were considered as another variable because some plant species had more than one value in this category. Values were summed in the recategorized variables.