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Grasses of the Precambrian Shield region in eastern lowland Bolivia. I. Habitat preferences

  • Timothy J. Killeen (a1) and Paul N. Hinz (a2)


The habitat distribution and relative abundance of 113 species of Gramineae were documented by releves in 82 stands near Conception, Santa Cruz, Bolivia. A factor analysis was used to compare the floristic similarity of stands situated in semideciduous forest, cerradao, cerrado, campo rupestre, valley-side campo, pantanal complex or on granite outcrops. Individual grass species usually had a preferred habitat and occurred with decreasing abundance in stands judged to be transitional by physiognomic, edaphic, and floristic criteria. Stands situated in cerrado vegetation were most similar to one another in grass species composition. Cerradao was transitional to semideciduous forest and cerrado but certain grasses were characteristic of this vegetation type. The floristic composition of the single campo rupestre locality was somewhat similar to cerrado; however, several of the more abundant grass species of this vegetation type did not occur in any nearby cerrado stand. Granite outcrops had a distinct grass flora and showed little similarity to other vegetation types. In savanna wetland communities, grass species distribution was influenced by water regime. Differences between stands on valley-side campo corresponded to topographic position on a gradient of increasing water surplus. Seasonally humid/dry stands on valley-side campo and pantanal complexes had a high degree of similarity. Stands lower on the catenary sequence of pantanal complexes and valley-side campos were increasingly dissimilar, a result of the different edaphic conditions of the seasonally flooded soils of pantanal complexes when compared with the permanently saturated (but never flooded) soils of valley-side campos. Pantanal complexes had the richest grass flora of all vegetation types because their microtopographic variability creates numerous micro-habitats with distinct water regimes, each supporting different grass species.



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Allem, A. C. & Valls, J. F. M. 1987. Recursos forrageiros nativos do pantanal Mato-Grossense. Empresa Brasileira de pesquisa Agropecuária – EMBRAPA. Brasilia, DF. 336 pp.
Beck, S. G. 1984. Comunidades vegetales de las sabanas inundadas del NE de Bolivia. Phytocoenologia 12:321350.
Clark, L. G. & Fisher, J. B. 1987. Vegetative morphology of grasses: shoots and roots. Pp. 3745 in Soderstrom, T. R., Hilu, K. W., Campbell, C. S. & Barkworth, M. E. (eds). Grass systematics and evolution. Smithsonian Institution Press, Washington, D.C.
Diniz, De Araujo, Neto, M., Haridasan, M. P. A. & Johnson, C. E. 1986. The murundus of the cerrado region of central Brazil. Journal of Tropical Ecology 2:1735.
Eiten, G. 1972. The cerrado vegetation of Brazil. Botanical Review 38:201341.
Eiten, G. 1978. Delimitation of the cerrado concept. Vegetatio 36:169178.
Goldsmith, F. B. 1974. Multivariate analysis of tropical grassland communities in Mato Grosso, Brazil. Journal of Biogeography 1:111122.
Goodland, R. 1971. A physiognomic analysis of the cerrado vegetation of central Brazil. Journal of Ecology 59:411419.
Gould, F. W. & Shaw, R. B. 1983. Grass systematics. (2nd edition). Texas A & M Press, College Station. 397 pp.
Haase, R. 1990a. Plant communities of a savanna in northern Bolivia I. Seasonally flooded grassland and gallery forest. Phytocoenologia 18:5581.
Haase, R. 1990b. Plant communities of a savanna in northern Bolivia II. Palm swamps, dry grassland, and shrubland. Phytocoenologia 18:343370.
Heringer, E. P., Barroso, G. M., Rizzo, J. A. & Rizzini, C. T. 1977. A flora do cerrado. Pp. 211232 in Ferri, M. G. (ed.). IV Simpósio sobre o cerrado, bases para utilizacao agropecuária. Livuraria Itatiaia Editora Ltda., Sao Paulo.
Killeen, T. J. 1990. The grasses of Chiquitanía, Santa Cruz, Bolivia. Annals of the Missouri Botanical Garden 77:125207.
Killeen, T. J. 1991. Range management and land-use practices in Chiquitanía, Santa Cruz, Bolivia. Rangelands 13:7377
Killeen, T. J. & Hinz, P. N. 1992. Grasses of the Precambrian Shield region in eastern lowland Bolivia. II. Life-form and C3- C4 pholosynthetic types. Journal of Tropical Ecology 8:409433.
Killeen, T. J., Louman, B. T. & Grimwood, T. 1990. La ecología paisajística de Concepción y Lomerío en la Provincía Nuflo de Chavez, Santa Cruz, Bolivia. Ecología en Bolivia 16:145.
Moreira De Andrade, P., Abreu, G. T. & Mesquita, G. T. S. 1986. Composicao florística e aspectos estruturais de uma área de ‘campo rupestre’ do Morro Chapéu, Nova Lima, Minas Gerais. Revista Brazileira de Bolânica 9:1321.
Mueller-Dombois, D. & Ellenberg, H. 1974. Aims and methods of vegetation ecology. John Wiley & Sons, New York. 547 pp.
Oliveira-Filho, A. T., Shephard, G. J., Martins, F. R. & Stubblebine, W. H. 1986. Environmental factors affecting physiognomic and floristic variation in an area of cerrado in central Brazil. Journal of Tropical Ecology 5:413431.
Ratter, J. A., De Freitas Leitao Filho, H., Argent, G., Gibbs, P. E., Semir, J., Shepard, G. & Tamashiro, J. 1988. Floristic composition and community structure of a southern cerrado area in Brazil. Notes from the Royal Botanical Garden, Edinburgh 45:137151.
Sendulsky, T. & Burman, A. G. 1978. Paspalum species of the Serra do Cipo I. A contribution to the study of Brazilian Poaceae. Revista Brasileira de Botânica 1:115.
Sendulsky, T. & Burman, A. G. 1980. Paspalum species of the Serra do Cipo II. A contribution to the study of Brazilian Poaceae. Revista Brasileira de Botânica 3:2335.
Silberbauer-Gottsberger, I. 1984. Fruit dispersal and trypanocarpy in Brazilian cerrado grasses. Plant Systemalics and Evolution 147:127.
Silberbauer-Gottsberger, I. & Eiten, G. 1983. Fitossociologia de urn hectare de cerrado. Brasil Florestal 54:5570.
Silberbauer-Gottsberger, I. & Gottsberger, G. 1984. Cerrado-Cerradão, a comparison with respect to number of species and growth forms. Phyocoenologia 12:293303.
Soderstrom, T. R. 1981. Observations on a fire-adapted bamboo of the Brazilian cerrado, Actinocladum verticillatum (Poaceae: Bambusoideae). American Journal of Botany 68:12001211.


Grasses of the Precambrian Shield region in eastern lowland Bolivia. I. Habitat preferences

  • Timothy J. Killeen (a1) and Paul N. Hinz (a2)


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