Leaf anatomy and chlorophyll content in Psychotria vellosiana Benth influenced by the edge and two matrices

  • Marcelo Polo Universidade Federal de Alfenas Instituto de Ciências da Natureza
  • Nayara Cristina Melo Universidade Federal de Lavras
  • Rafael Hansen Madail Universidade Federal de Alfenas
  • Luiz Alberto Beijo Universidade Federal de Alfenas

Resumo

 

 The distance effect of the edge and two matrices (pasture and sugar cane) on the microclimate and anatomical and physiological properties of Psychotria vellosiana leaves were studied in two semideciduous forest fragments in southern Minas Gerais. The plots were set at distances (0, 20, 40, 60 and 80 m) from the edge to the interior of each fragment: 0, 20 and 40 m distances were considered edge, whereas 60 and 80 m were considered interior. Microclimate data were collected in all plots and radiation data and canopy openness at 0, 40 and 80 m. Leaves were collected for analysis of their chlorophyll content and anatomical properties. No differences were found for the canopy openness and radiation between the edge and interior of the fragments. The temperature and humidity data and the soil humidity displayed no differences within or between each fragment. Only the soil temperature data differed between the fragments. The leaves displayed the same chlorophyll content for the edge and interior of the fragments and between the fragments. These results may be related to the microclimate properties found along the 80 m transect in each fragment. Some anatomical data suggested a better adaptation of P. vellosiana to the fragment surrounded by the pasture matrix. However, we require a more detailed analysis that includes nutrient information and water availability from the soil.

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Biografia do Autor

Marcelo Polo, Universidade Federal de Alfenas Instituto de Ciências da Natureza
Laboratório de Biotecnologia Ambiental e Genotoxicidade, área de Fisiologia Vegetal, subáreas de Fisiologia do Desenvolvimento e Ecofisiologia

Referências

ALMEIDA, L. P. et al.Crescimento inicial de plantas de Cryptocaria aschersoniana Mez. submetidas a níveis de radiação solar. Ciência Rural. v.34, n.1, p. 83-88, 2004.

ARAÚJO, C. G.; CARDOSO, V. J. M. Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds. Braz. J. Biol., v.66, n.2, p. 709-717, 2006.

BENINCASA, M. M. P. Análise de crescimento de plantas: noções básicas. Jaboticabal: FUNEP.2003.

BOEGER, M. R. T.; WISNIEWSKI, C. Comparação da morfologia foliar de espécies arbóreas de três estádios sucessionais distintos de floresta ombrófila densa (Floresta Atlântica) no Sul do Brasil. Revista Brasil. Bot., v.26, n.1, p. 61-72, 2003.

CARLQUIST, S. Ecological strategies of xylem evolution. Berkeley: University of California Press. 1975,

CASTRO, E, M. et al. Crescimento e anatomia foliar de plantas jovens de Mikania glomerata Sprengel (guaco) submetidas a diferentes fotoperíodos Ciênc. Agrotec., v.27, n.6, p. 1293-1300, 2003.

CASTRO, E. M., PEREIRA, F. J.; PAIVA, R. Histologia vegetal: estrutura e função de órgãos vegetativos. Lavras: UFLA.2009.

DEBINSKI, D. M.; HOLT, R. D. A survey and overview of habitat fragmentation experiments. Conservation Biology, v.14: 342-355, 2000.

DEIKUMAH, J. P.; MCALPINE, C. A.; MARON, M. Matrix Intensification Alters Avian Functional Group Composition in Adjacent Rainforest Fragments. PLoS ONE v.8, n.9, 74852. doi:10.1371/journal.pone.0074852, 2013.

FREITAS, C. G.; DAMBROS, C.; CAMARGO, J. L. C. Changes in seed rain across Atlantic Forest fragments in Northeast Brazil. Acta Oecologica, n.53, p.49- 55, 2013.

HOFMEISTER, J.; HOSEK, J.; BRABEC, M.; HÉDL, R.; MODRÝ, M. Strong influence of long-distance edge effect on herb-layer vegetation in forest fragments in an agricultural landscape. Perspectives in Plant Ecology, Evolution and Systematics, 2013

HOLANDA, A. C. et al. Estruturas de espécies arbóreas sob efeito de borda em um fragmento de floresta estacional semidecidual em Pernambuco. Revista Árvore, Viçosa, v.34, n.1, p.103-114, 2010.

JULES, E. S.; SHAHANI, P. A broader ecological context to habitat fragmentation: why matrix habitat is more important than we thought. Journal of Vegetation Science, v.14, p. 459-464. 2003.

JUNIOR, A. E. et al Variação na estrutura foliar de Mikania glomerataSpreng. (Asteraceae) sob diferentes condições de luminosidade. Revista Brasil. Bot. v.32,n.4,p. 749-758, 2009.

JUVANHOL, R. S. et al. Análise Espacial de Fragmentos Florestais: Caso dos Parques Estaduais de Forno Grande e Pedra Azul. Estado do Espírito Santo. Floresta e Ambiente, v.18,n.4, p. 353-364, 2011.

KOZLOWSKI, T.; KRAMER, P. I.; PALLARDY, S. G. The physiolological ecology of woody plants. Academic Press, London.1991.

KRAUS, J. E; ARDUIM, M. Manual básico de métodos em morfologia vegetal. Seropédica: EDUR. 1997.

KUPFER, J. A.; MALANSON, G. P.; FRANKLIN, S. B. Not seeing the ocean for the islands:the mediating influence of matrix-based processes on forest fragmentationeffects. Global Ecol. Biogeogr. v.15, p.8–20. 2006.

LOMOLINO, M. V.; WEISER, M. D. Towards a more general species–area relationship: diversity on all islands, great and small. Journal of Biogeography, v.28, p.431–445, 2001.

METZGER, J. P. Tree functional group richness and landscape structure in a Brazilian tropical fragmented landscape. Ecological Applications, v.10, p. 1147-1161, 2000.

MORAES, T. M. S. et al. Comparative leaf anatomy and micromorphology of Psychotria species (Rubiaceae) from the Atlantic Rainforest. Acta Botanica Brasilica, v.25,n.1, p.178-190, 2011.

MURPHY, H. T.; LOVETT-DOUST, J. Context and connectivity in plant metapopulations and landscape mosaics: does the matrix matter? Oikos, v. 105, p. 3–14, 2004.

PREVEDELLO, J. A.; VIEIRA, M. V. Does the type of matrix matter? A quantitative review of the evidence. Biodivers Conserv.,v.19, p. 1205–1223, 2010.

QUEVEDO, A. A.; SCHLEUNING, M.; HENSEN, I.; SAAVEDRA, F.; DURKA, W. Forest fragmentation and edge effects on the genetic structure of Clusia sphaerocarpa and C. lechleri (Clusiaceae) in tropical montane forests. Journal of Tropical Ecology, v.29, n.4, p.321-329, 2013.

RAMOS, F. N.; DE LIMA, P. F.; ZUCCHI, M. I.; COLOMBO, C. A.; SOLFERINI, V. N. Genetic structure of tree and shrubby species among anthropogenic edges natural edges and interior of an Atlantic forest fragment. Biochemical Genetics, v.48, p.215–228, 2010.

RIBEIRO, M. N. O.; CARVALHO, S. P.; PEREIRA, F. J.; CASTRO, E. M. Anatomia foliar de mandioca em função do potencial para tolerância à diferentes condições ambientais. Revista Ciência Agronômica, v.43, n.2, p. 354-361, 2012.

RIES, L. et al. Ecological responses to habitat edges: mechanisms, models and variability explained. – Annu. Rev. Ecol. Evol. Syst. v.35, p. 491-52, 2004.

SANTIAGO, E. J. A. et al. Aspectos da anatomia foliar da pimenta-longa (Piper hispidinervium c.dc.) sob diferentes condições de luminosidade. Ciênc. agrotec. v.25, n.5, p. 1035-1042, 2001.

TURTON, S. M.; FREIBURGER, H. J. Edges and aspect effects on the microclimate of a small tropical forest remnant on the Atherton Tableland, northeastern Australia. In Tropical forest remnants: ecology, management, and conservation of fragmented communities. (Eds WF Laurance, R.O. & Bierregaard, Jr.) The University of Chicago Press, Chicago, IL p. 45-54.1997.

VIANA, V. M.; PINHEIRO, L. A. F. V. Conservação da biodiversidade em fragmentos florestais. Série Técnica IPEF, v.12, n.32, p. 25-42, 1998.

VOGELMANN, T. C.; NISHIO, J. N.; SMITH, W. K. Leaves and light capture: light propagation and gradients of carbon fixation within leaves. Trends in Plant Science,v.1, p.65-70, 1996.

YOUNG, A. G.; BOYLE, T.; BROWN, T. The population genetic consequences of habitat fragmentation for plants. Trends in Ecology & Evolution, v.11, p. 413-418, 1996.

WELLBURN, A. R. The spectral determination of chlorophylls a and b, as well as total carotenoids, using various solvents with spectrophotometers of different resolution. Journal of Plant Physiology, v. 144, p.307–313, 1994.

ZUDEIMA, P. A.; SAYER, J. A.; DIJKMAN, W. Forest fragmentation and biodiversity: the case for intermediate-sized conservation areas. Environmental Conservation, v.23, p. 290-297, 1996.

Publicado
2014-02-25
Seção
Artigos Científicos