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BSP, 1999

Representative

WWF The Global 200, 1997

Representative

WWF - Freshwater Ecoregions of North America, 2000

Representative

Analysis

All three exercises belong to the same family and track the evolution of the freshwater priority setting exercise.

FRESHWATER

Type of Approach

Methodology

Data

Experts workshop

Experts consultation

Data mapping, experts consultation and experts workshops

Qualitative joint expert on the spot assessments, lacks data-driven rigor. Qualitative expert assessments, lacks data-driven rigor. Quantitative data sets for: fish, crayfish and herpentofauna.

Limited comparatives can be made within freshwater exercises due to the lack of other ecoregional cartography based similar works. Nevertheless The use of priorities based in comparisons with two different sets of ecoregions (Latin America and the Caribbean - North America) produces interesting results.

WWF The Global 200,

Olson and Dinerstein,

1997

1997

FRESHWATER

BSP, 1999

Ecoregional Cartographic Base

Olson et al., 1999

WWF - Freshwater Ecoregions of North America, 2000

Olson et al., 1999

Biogeographic Hierarchy (n) number of units for Mexico Ecoregion Complex (9) Major Habitat Type (6) FW Ecoregion (32 + 1)

Composite

freshwater

ecoregions

(4 Olson

and Dinerstein, 1997in 3 in WWF, 2000)

Major Habitat Type (5) FW Ecoregion (32 + 1)

Level at which the prioritization was carried out.

FW Ecoregion Latin America & the Caribbean

Composite Marine Ecoregion

FW Ecoregion North America

33

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