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No. de sistema: 000043785

LDR _ _ 00000nab^^22^^^^za^^4500
008 _ _ 070822c20079999ne^mr^p^^^^^^z0^^^^^eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mx---
044 _ _ a| ne
245 0 0 a| Optimizing conservation of forest diversity
b| a country-wide approach in Mexico
520 3 _ a| A recent vegetation study [Palacio-Prieto et al. (2000) Bol Inst Geogr UNAM 43:183–203] showed that Mexico’s forest area has declined to 33.3%, from originally 52.0% of the country’s land area. In order to assess strategies for tree diversity conservation, we compiled a list of 846 tree species native to Mexico, and determined for each the presence or absence in 234 geographical squares of 1° latitude by 1° longitude (approximately 106 × 106 km). On the average, any two squares shared only 6% of their species composition. Using a standard optimization method from engineering and economics [Dantzig (1963) Linear programming and extensions.
520 3 _ a| Princeton University Press, Princeton, NJ, USA, 625 p], we determined the minimally necessary land area in Mexico to conserve the 846 tree species, while securing that each species is found in an area of (approximately) 1,100 km2 of currently existing forest vegetation. Furthermore, we took into account 15 existing protected areas with a size of at least 1,100 km2 each. With these constraints, the total minimum area needed to conserve all 846 tree species is 45,136 km2 of currently existing forest vegetation, or 2.3% of Mexico’s surface. While this analysis can be refined with subsequent field work, the proposed reserve network indicates that efficient land use planning on a national scale may be able to conserve tree species diversity in a relatively small portion of Mexico, even after severe deforestation has taken place.
650 _ 4 a| Conservación de bosques
650 _ 4 a| Árboles
650 _ 4 a| Fitogeografía
651 _ 4 a| México
700 1 _ a| Ricker, Martin
700 1 _ a| Ramírez Krauss, Iliana
e| coaut.
700 1 _ a| Ibarra Manríquez, Guillermo
c| Doctor
e| coaut.
700 1 _ a| Martínez, Esteban
e| coaut.
773 0 _
t| Biodiversity and Conservation
g| Vol. 16, no. 6 (2007), p. 1927-1957
x| 0960-3115
900 _ _ a| En hemeroteca, SIBE-San Cristóbal
902 _ _ a| Sonia/MM/GOG
904 _ _ a| Agosto 2007
905 _ _ a| Servibosques
905 _ _ a| CRIIS
LNG eng
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*En hemeroteca, SIBE-San Cristóbal
Optimizing conservation of forest diversity: a country-wide approach in Mexico
Ricker, Martin (autor)
Ramírez Krauss, Iliana (autor)
Ibarra Manríquez, Guillermo (autor)
Martínez, Esteban (autor)
Contenido en: Biodiversity and Conservation. Vol. 16, no. 6 (2007), p. 1927-1957. ISSN: 0960-3115
Bibliotecas:
San Cristóbal
No. de sistema: 43785
Tipo: Artículo
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Alemán

"A recent vegetation study [Palacio-Prieto et al. (2000) Bol Inst Geogr UNAM 43:183–203] showed that Mexico’s forest area has declined to 33.3%, from originally 52.0% of the country’s land area. In order to assess strategies for tree diversity conservation, we compiled a list of 846 tree species native to Mexico, and determined for each the presence or absence in 234 geographical squares of 1° latitude by 1° longitude (approximately 106 × 106 km). On the average, any two squares shared only 6% of their species composition. Using a standard optimization method from engineering and economics [Dantzig (1963) Linear programming and extensions."

"Princeton University Press, Princeton, NJ, USA, 625 p], we determined the minimally necessary land area in Mexico to conserve the 846 tree species, while securing that each species is found in an area of (approximately) 1,100 km2 of currently existing forest vegetation. Furthermore, we took into account 15 existing protected areas with a size of at least 1,100 km2 each. With these constraints, the total minimum area needed to conserve all 846 tree species is 45,136 km2 of currently existing forest vegetation, or 2.3% of Mexico’s surface. While this analysis can be refined with subsequent field work, the proposed reserve network indicates that efficient land use planning on a national scale may be able to conserve tree species diversity in a relatively small portion of Mexico, even after severe deforestation has taken place."

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