A CONSERVATION ASSESMENT OF THE TERRESTRIAL ECOREGIONS OF LATIN AMERICA AND THE CARIBBEAN The World Bank - WWF (Dinerstein et al. 1995)
This priority-setting study elevates, as first principle, maintaining the representation of all ecosystem and habitat types in regional investment portfolios. Second, it recognizes landscape- level features as an essential guide for effective conservation planning.
The goals of this study are:
To replace the relatively ad hoc decision making process of donors investing in biodiversity conservation with a more transparent and scientific approach.
To move beyond evaluations based largely on species lists to a new framework that also incorporates maintaining ecosystem and habitat diversity.
To better integrate the principles of conservation biology and landscape ecology into decision making.
To ensure that proportionately more funding be channeled to areas that are of high biological value.
The study biogeographic approach divides Latin America and the Caribbean in 5 major ecosystem types, 11 major habitat types and 178 ecoregions (excluding 13 mangrove complexes of which 5 or 38% are present in Mexico), 50 of these ecoregions or 28% of them are present in
integrates two fundamental
distinctiveness and (B) conservation status, into an overall (C) biodiversity priority ranking. Fourteen ecoregions present in Mexico are considered to be of the highest priority at a regional scale.
(A) 1= Globally Outstanding, 2 =Regionally Outstanding, 3 =Bioregionally Outstanding, 4 =Locally Important
C = Critical,
E = Endangered,
V = Vulnerable,
S = Relatively Stable,
I = Relatively Intact
(C) I = Highest Priority at Regional Scale, II = High Priority at Regional Scale, III = Moderate Priority at Regional Scale, IV = Important at National Scale,
indicates ecoregions elevated at level Ia priority ranking to achieve better bioregional representation.
TROPICAL BROADLEAF FORESTS Tropical Moist Broadleaf Forests
- Oaxacan moist forest - 3E/II
- Tehuantepec moist forests - 3E/II*
- Yucatán moist forest - 3V/III
- Sierra Madre moist forest - 3E/II
- Central American montane forest - 3E/II
12.- Belizean Swamp Forests - 4E/III Tropical Dry Broadleaf Forests
(marginally mapped for Mexico)
- Baja California dry forests - 4S/IV
- Sinaloan dry forests - 3V/III
- Tamaulipas/Veracruz dry forests - 4E/III*
- Jalisco dry forests - 2E/I
- Balsas dry forests - 2E/I
- Oaxacan dry forests - 3E/II
- Veracruz dry forests - 4C/III
- Yucatán dry forests - 4E/III
- Central American Pacific dry forests - 3C/II (included in map not in text)