Biodiversity & Conservation

, Volume 6, Issue 1, pp 19–43 | Cite as

Anthropogenic landscape changes and avian diversity at Los Tuxtlas, Mexico

  • Alejandro Estrada
  • Rosamond Coates-Estrada
  • Dennis A. MerittJr

Abstract

Faced with rapid and extensive conversion of tropical rain forests to a landscape consisting of pasture lands, and with the need to preserve the avian diversity of tropical regions, it is imperative to determine how different species have responded to anthropogenic alterations of their natural habitats. We sampled birds in undisturbed and disturbed forest islands in regenerating forests and in four replicates of each of the following man-made habitats: arboreal agricultural habitats (cacao, coffee, mixed, citrus and allspice), non-arboreal agricultural habitats (corn, jalapen~o chili pepper and bananas), live fences and pastures, at Los Tuxtlas, Veracruz, Mexico. We censused 22145 birds representing 226 species. We detected 79% of the species in forest habitats, 80% in agricultural habitats, 43% in live fences and only 5% in pastures. Isolating distance and continued disturbance by humans of forest fragments were important variables influencing species' richness. Arboreal agricultural habitats and live fences were richer in species and in birds than non-arboreal man-made habitats. Economic surveys showed that some of the crops investigated yield higher returns than cattle ranching based on pastures. We discuss the conservation value for birds of agricultural islands and of live fences as landscape elements that help reduce physical and biotic isolation among remaining configurations of forest fragments in Los Tuxtlas.

tropical rain forest Mexico Los Tuxtlas bird diversity conservation. 

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References

  1. American Ornithologists' Union (1983) Check-list of North Amercian Birds. American Ornithologists Union. Lawrence, Kansas: Allen Press.Google Scholar
  2. Coates-Estrada, R., Estrada, A., Pashley, D. and Barrow, W. (1985) Lista de las aves de la Estacion de Biologia Los Tuxtlas. Instituto de Biologia y Dir. Gral. de Publ. UNAM, Mexico.Google Scholar
  3. Dirzo, R. and Garcia, M.C. (1992) Rates of deforestation in Los Tuxtlas, a neotropical area in southern Mexico. Conserv. Biol. 6, 84–90.Google Scholar
  4. Estrada, A. and Coates-Estrada, R. (1988) Tropical rain forest conversion and perspectives in the conservation of wild primates (Alouatta and Ateles) in Mexico. Am. J. Primat. 14, 315–27.Google Scholar
  5. Estrada, A, Coates-Estrada, R. and Martinez, M. (1985) La Estacion de Biologia ‘Los Tuxtlas’: un recurso para el estudio y conservacion de las selvas del tropico humedo en Mexico. In Regeneracion de selvas II (S. del Amo and A. Gomez-Pompa, eds) Instituto Nacional de Investigaciones sobre Recursos Bioticos. Editorial Alhambra Mexicana, S.A. de C.V. Mexico. pp. 379–93.Google Scholar
  6. Estrada, A., Coates-Estrada, R., Merrit, D. Jr, Montiel, S. and Curiel, D. (1993) Patterns of frugivore species richness and abundance in forest islands and in agricultural habitats at Los Tuxtlas, Mexico. In Frugivores and seed dispersal: ecological and ecolutionary aspects (T.H. Fleming and A. Estrada, eds) pp. 245–57. The Netherlands: Kluwer Academic Group.Google Scholar
  7. Fitch, R. (1992) WinStat. The Statistics Program for Windows. Cambridge, MA: Kalmia Company.Google Scholar
  8. Gleissman, S.R., Garcia, R. and Amador, M. (1981) The ecological basis for the application of traditional agriculture technology in the management of tropical ecosystems. Agro-ecosystems 7, 173–85.Google Scholar
  9. Hutto, R.L., Pletschet, S.M. and Hendricks, P. (1986) A fixed radius point count method for nonbreeding and breeding season use. Auk 103, 593–602.Google Scholar
  10. Ibarra, G. and Sinaca, S. (1987) Listados floristicos de Mexico VII. Estacion de Biologia Tropical Los Tuxtlas, Veracruz. UNAMF. Mexico City: Instituto de Biologia.Google Scholar
  11. James, F.C. and Rathburn, S. (1981) Rarefaction, relative abundance and diversity of avian communities. Auk 98, 785–800.Google Scholar
  12. James, F.C. and Shugart, H.H. (1970) A quantitative method of habitat description. Audubon Field Notes 24, 727–36.Google Scholar
  13. Johns, A.D. (1991) Responses of Amazonian forest birds to habitat modification. J. Trop. Ecol. 7, 471–37.Google Scholar
  14. Karr, J. (1990) Avian survival rates and the extinction process on Barro Colorado Island, Panama. Conserv. Biol. 4, 391–7.Google Scholar
  15. Lovejoy, T.E., Bierregaard, R.O., Brown, K.S., Emmons, L. and van der Voort, M.E. (1984) Ecosystem decay of Amazon forest fragments. In Extinctions (M. H. Niteki, ed.) pp. 295–325. Illinois: University of Chicago Press.Google Scholar
  16. Lovejoy, T.E., Bierregaard, R.O., Rylands, A., Malcolm, J.R., Quintela, C.F., Harper, L.H., Brown, K.S., Powell, A.H., Powell, G.V.N., Schubart, H.O.R. and Hays, M.B. (1986) Edge and other effects of isolation on Amazon forest fragments. In Conservation Biology: a Science of Scarcity and Diversity (M.E. Soule, ed.) pp. 257–85. Sunderland, MA: Sinauer Assoc.Google Scholar
  17. Ludwig, J.A. and Reynolds, J.F. (1988) Statistical Ecology. New York: John Wiley and Sons.Google Scholar
  18. McIntyre, S. and Barret, G.W. (1992) Habitat veriegation, an alternative to fragmentation. Conserv. Biol. 1, 146–7.Google Scholar
  19. Pennington, T.D. and Sarukhán, J. (1968) Arboles tropicales de Mexico. Forestales, Mexico: Instituto de Investigaciones.Google Scholar
  20. Pulliam, H.R. (1988) Sources, sinks and population regulation. Am. Nat. 132, 652–61.Google Scholar
  21. Rappole, J.H., Ramos, M.A. and Winker, K. (1989) Movement and mortality in wintering Wood thrushes. Auk 106, 402–10.Google Scholar
  22. Robbins, C.S., Dowell, B.A., Dawson, D.K., Coates-Estrada, R., Colon, J., Espinoza, F., Rodriguez, J., Sutton, R., Vargas, T. and Weyer, D. (1987) Comparison of winter bird populations in extensive neotropical forest and isolated fragments. In Proceedings of the III Congress of Neotropical Ornithology. (H. Alvarez-Lopez, G. Kattan and C. Murcia, eds) pp. 151–6. Cali, Colombia. Universidad del Valle.Google Scholar
  23. Robbins, C.S., Dowell, B.A., Dawson, D.K., Colon, J., Estrada, R., Sutton, A., Sutton, R. and Weyer, D. (1989) Comparison of neotropical migrant land bird populations wintering in tropical forests, isolated forest fragments and agricultural habitats. In Ecology and Conservation of Neotropical migrant birds (J.M. Hagan III, and D.W. Johnston, eds) pp. 207–20. Washington, DC: Smithsonian Institution Press.Google Scholar
  24. Schemske, D.W. and Brokaw, N. (1981) Treefalls and the distribution of understory birds in a tropical forest. Ecology 62, 938–45.Google Scholar
  25. Stiles, F.G. and Skutch, A.F. (1989) A Guide to the Birds of Costa Rica. Ithaca, NY: Cornell University Press.Google Scholar
  26. Terborgh, J.W. and Weske, J.S. (1969) Colonization of secondary habitats by Peruvian birds. Ecology 50, 765–82.Google Scholar
  27. Walker, B.H. (1981) Is succession a viable concept in African savannah ecosystems? In Forest Succesion: Concepts and Application (D.C. West, H.H. Shugart and D.B. Botkin, eds) pp. 431–47. New York: Springer-Verlag.Google Scholar
  28. Willis, E.O. (1974) Populations and local extinctions of birds on Barro Colorado Island, Panama. Ecol. Monogr. 44, 153–69.Google Scholar
  29. Winker, K., Rappole, J.H. and Ramos, M.A. (1990) Population dynamics of the Wood Thrush in southern Mexico, Veracruz. Condor 92, 444–60.Google Scholar

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • Alejandro Estrada
    • 1
  • Rosamond Coates-Estrada
    • 1
  • Dennis A. MerittJr
    • 2
  1. 1.Estacio´n de Biologi´a ‘Los Tuxtlas’Instituto de Biologi´a – UNAMSan Andre´s Tuxtla, VeracruzMe´xico
  2. 2.Lincoln Park ZooChicagoUSA

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