Sanchez-AzofeifaQuesada-MateoGonzalez-QuesadaEtAl1999

Référence

Sanchez-Azofeifa, G.A., Quesada-Mateo, C., Gonzalez-Quesada, P., Dayanandan, S. and Bawa, K.S. (1999) Protected areas and conservation of biodiversity in the tropics. Conservation Biology, 13(2):407-411.

Résumé

We compared deforestation rates and the extent of fragmentation inside and outside protected areas in the Sarapiqui region of Costa Rica. We determined deforestation rates using remotely sensed images with supervised classification. We georeferenced the processed images and then transformed them to vector format for final mapping and parameter quantification. The deforestation rate in protected areas was low and declined sharply from 0.56% annually between 1976 and 1986 to 0.16% from 1991 to 1995. Outside the protected areas, the rate decreased from 3.6% in 1976-1986 to 2.8% in 1986-1991, but it increased again to 3.2% in 1991-1995. Fragmentation outside the protected areas increased considerably: the number of patches increased from 537 in 1976 to 1231 in 1996, while during the same period the average size of patches decreased from 0.95 to 0.25 km2. Forest landscapes in the Sarapiqui region are likely to lose considerable biodiversity because of the past forest loss and fragmentation even without further increases in deforestation and fragmentation.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { Sanchez-AzofeifaQuesada-MateoGonzalez-QuesadaEtAl1999,
    AUTHOR = { Sanchez-Azofeifa, G.A. and Quesada-Mateo, C. and Gonzalez-Quesada, P. and Dayanandan, S. and Bawa, K.S. },
    TITLE = { Protected areas and conservation of biodiversity in the tropics },
    JOURNAL = { Conservation Biology },
    YEAR = { 1999 },
    VOLUME = { 13 },
    PAGES = { 407-411 },
    NUMBER = { 2 },
    NOTE = { 08888892 (ISSN) Cited By (since 1996): 27 Export Date: 27 April 2007 Source: Scopus CODEN: CBIOE doi: 10.1046/j.1523-1739.1999.013002407.x Language of Original Document: English Correspondence Address: Bawa, K.S.; Biology Department; University of Massachusetts; 100 Morrissey Boulevard Boston, MA 02125, United States References: Bawa, K.S., Dayanandan, S., Socioeconomic factors and tropical deforestation (1997) Nature, 386, pp. 562-563; Bawa, K.S., Dayanandan, S., Causes of tropical deforestation and institutional constraints to conservation (1997) Tropical Rain Forest: A Wider Perspective, pp. 175-198. , B. Goldmith, editor. Chapman and Hall, London; Bawa, K.S., Perry, D.R., Beach, J.H., Reproductive biology of tropical lowland rain forest trees. I. Sexual systems and self-incompatibility mechanisms (1985) American Journal of Botany, 72, pp. 331-345; Bawa, K.S., Perry, D.R., Bullock, S.H., Coville, R.E., Grayum, M.H., Reproductive biology of tropical lowland rain forest trees. II. Pollination mechanisms (1985) American Journal of Botany, 72, pp. 346-356; Brown, K., Pearce, D.W., (1994) The Causes of Tropical Deforestation: The Economic and Statistical Analysis of Factors Giving Rise to the Loss of the Tropical Forests, , University College London Press, London; Chase, M., Moller, C., Kesseli, R., Bawa, K.S., Distant gene flow in tropical trees (1996) Nature, 383, pp. 398-399; Chomentowsky, W., Salas, B., Skole, D.L., Landsat pathfinder project advances deforestation mapping (1994) GIS World, 7, p. 34; Clark, D.A., Plant demography (1994) La Selva: Ecology and Natural History of a Neotropical Rain Forest, pp. 90-105. , L. McDade, K. S. Bawa, H. Hespenheide, and G. Hartshorn, editors. University of Chicago Press, Chicago; Heywood, V.H., (1995) Global Biodiversity Assessment, , United Nations Environment Programme/Cambridge University Press, Cambridge, United Kingdom; Hunter, J.R., Is Costa Rica truly conservation-minded? (1994) Conservation Biology, 8, pp. 592-595; Hunter, M.L., (1995) Fundamentals of Conservation Biology, , Blackwell Science, Cambridge, Massachusetts; McDade, L., Bawa, K.S., Hespenheide, H., Hartshorn, G., (1994) La Selva: Ecology and Natural History of a Neotropical Rain Forest, , University of Chicago Press, Chicago; Meffe, G.K., Carroll, C.R., (1997) Principles of Conservation Biology. 2nd Edition, , Sinaner Associates, Sunderland, Massachusetts; Pearce, D., Brown, K., Saving the world's tropical forests (1994) The Causes of Tropical Deforestation: The Economic and Statistical Analysis of Factors Giving Rise to the Loss of the Tropical Forests, pp. 2-26. , K. Brown and D. W. Pearce, editors. University College London Press, London; Primack, R., (1993) Essentials of Conservation Biology, , Sinauer Associates, Sunderland, Massachusetts; Sa?nchez-Azofeifa, G.A., (1996) Assessing Land Use/Cover Change in Costa Rica, , Ph.D. dissertation. University of New Hampshire, Durham; Sa?nchez-Azofeifa, G.A., Quesada-Mateo, C.A., Deforestation, carbon dynamics, and sustainable mitigation measures in costa rica: The Puerto Viejo de Sarapiqui? case study (1995) Interciencia, 20, p. 396. },
    ABSTRACT = { We compared deforestation rates and the extent of fragmentation inside and outside protected areas in the Sarapiqui region of Costa Rica. We determined deforestation rates using remotely sensed images with supervised classification. We georeferenced the processed images and then transformed them to vector format for final mapping and parameter quantification. The deforestation rate in protected areas was low and declined sharply from 0.56% annually between 1976 and 1986 to 0.16% from 1991 to 1995. Outside the protected areas, the rate decreased from 3.6% in 1976-1986 to 2.8% in 1986-1991, but it increased again to 3.2% in 1991-1995. Fragmentation outside the protected areas increased considerably: the number of patches increased from 537 in 1976 to 1231 in 1996, while during the same period the average size of patches decreased from 0.95 to 0.25 km2. Forest landscapes in the Sarapiqui region are likely to lose considerable biodiversity because of the past forest loss and fragmentation even without further increases in deforestation and fragmentation. },
    KEYWORDS = { biodiversity deforestation protected area tropical environment },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...