Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Subtropical Argentinean Chaco forests have been severely deforested and fragmented due to agriculture during the last six decades. The most affected forests are located in areas that are most favorable for crops. This is the case of the semi-deciduous "bosque de tres quebrachos" ("three quebrachos forest") in southwest of Chaco Province (Argentina), where this study was carried out. The aim of this work was to analyze the fragmentation process, considering spatial (fragments and landscape levels) and temporal (land use changes) scales, studying the effects on the forest structure (density and basal area) and tree recruitment. All trees (adults and saplings) were recorded and measured in 112 plots (400 m2) distributed in 28 forest fragments (0.9-160ha) located at four different landscape samples (4500ha) in one environmentally homogeneous zone (72,804ha). The four landscape samples have different current forest cover (low/high) and different land use history (low/high). Using linear mixed models, we evaluated the effects of current and historic fragment size, landscape forest cover and land use changes on the density and basal area at stand level, and considering the two different strata (upper and middle). Results showed that fragmentation did not severely affect the structure of the older age classes of trees in the remaining fragments but affect the tree recruitment, which could influence over the ability of the forest to perpetuate itself. We found positive relationships between sapling density and fragment size for the tree species of middle stratum, and between sapling density and forest cover at landscape level for the species of upper stratum. Regarding adults, we found a negative relationship between density and historic fragment size, probably related to the past timber harvesting. We concluded that even small fragments of three quebrachos forest and those located in highly deforested landscapes have high conservation value since their structure does not differ from that of the larger fragments or landscapes with higher forest cover. Our results reveal the importance of considering landscape and fragment scales simultaneously to better understand the fragmentation process and improve the recommendations for the management of fragmented landscapes. © 2013 Elsevier B.V.

Registro:

Documento: Artículo
Título:Changes in forest structure and tree recruitment in Argentinean Chaco: Effects of fragment size and landscape forest cover
Autor:Torrella, S.A.; Ginzburg, R.G.; Adámoli, J.M.; Galetto, L.
Filiación:Grupo de Estudios de Sistemas Ecológicos en Ambientes Agrícolas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Intendente Güiraldes 2160, 4 piso #56, Pabellon II, (C1428EGA), Buenos Aires, Argentina
Instituto Multidisciplinario de Biología Vegetal, CONICET, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, CC 495 (5000) Córdoba, Argentina
Palabras clave:Chaco forest; Forest fragmentation; Forest structure; Land use changes; Tree recruitment; Chaco forest; Forest fragmentations; Forest structure; Land-use change; Tree recruitments; Conservation; Logging (forestry); Land use; age class; agricultural practice; anthropogenic effect; basal area; deforestation; environmental management; forest cover; forest dynamics; habitat fragmentation; land use change; landscape ecology; recruitment (population dynamics); stand structure; subtropical region; timber harvesting; Conservation; Land Use; Logging; Argentina; Chaco [Argentina]
Año:2013
Volumen:307
Página de inicio:147
Página de fin:154
DOI: http://dx.doi.org/10.1016/j.foreco.2013.07.016
Título revista:Forest Ecology and Management
Título revista abreviado:For. Ecol. Manage.
ISSN:03781127
CODEN:FECMD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03781127_v307_n_p147_Torrella

Referencias:

  • Adámoli, J., Ginzburg, R., Torrella, S., (2011), Escenarios productivos y ambientales del Chaco Argentino. 1977-2010 ed. Fundación Producir Conservando. Buenos Aires; Aguilar, R., Ashworth, L., Galetto, L., Aizen, M., Plant reproductive susceptibility to habitat fragmentation: review and synthesis through a meta-analysis (2006) Ecol. Lett., 9, pp. 968-980
  • Alberto, J.A., Bruniard, E.D., Atlas geográfico de la Provincia del Chaco: Tomo 1 el medio natural (1987) Geográfica, 5, pp. 1-60
  • Arroyo-Rodriguez, V., Mandujano, S., The importance of tropical rain forest fragments to the conservation of plant species diversity in Los Tuxtlas, Mexico (2006) Biodivers. Conserv., 15, pp. 4159-4179
  • Arroyo-Rodríguez, V., Pineda, E., Escobar, F., Benítez-Malvido, J., Value of small patches in the conservation of plant-species diversity in highly fragmented rainforest (2009) Conserv. Biol., 23, pp. 729-739
  • Benvenutti-Ferreira, G., Coelho, G.C., Florsitics and structure of the tree component in a seasonal forest remnant, Chiapetta, Rio Grande do Sul (2009) Brazil. Rev. Bras. Biocienc., 7, pp. 344-353
  • Benitez-Malvido, J., Impact of forest fragmentation on seedling abundance in a tropical rain forest (1998) Conserv. Biol., 12, pp. 380-389
  • Borges do Carmo, A., Vasconcelos, H.L., Monteiro de Araújo, G., Estrutura da comunidade de plantas lenhosas em fragmentos de cerrado: relação com o tamanho do fragmento e seu nível de perturbação (2011) Rev. Bras. Bot., 34, pp. 31-38
  • Boletta, P., Ravelo, A., Planchuelo, A., Grilli, M., Assessing deforestation in the Argentine Chaco (2006) For. Ecol. Manage., 228, pp. 108-114
  • Burnham, K.P., Anderson, D.R., (2002) Model selection and multimodel inference, a practical information-theoretic approach, , Springer, New York
  • Carnevale, N., Alzugaray, C., Di Leo, N., Estudio de la deforestación en la Cuña Boscosa santafesina mediante teledetección espacial (2007) Quebracho, 14, pp. 47-56
  • Cordeiro, N.J., Howe, H.F., Low recruitment of trees dispersed by animals in african forest fragments (2001) Conserv. Biol., 15, pp. 1733-1741
  • Didham, R.K., Kapos, V., Ewers, R.M., Rethinking the conceptual foundations of habitat fragmentation research (2012) Oikos, 121, pp. 161-170
  • Echeverria, C., Newton, A.C., Lara, A., Rey Benayas, J.M., Coomes, D.A., Impacts of forest fragmentation on species composition and forest structure in the temperate landscape forest of southern Chile (2007) Glob. Ecol. Biogeogr., 16, pp. 426-439
  • Fahrig, L., Effects of habitat fragmentation on biodiversity (2003) Annu. Rev. Ecol. Evol. Syst., 34, pp. 487-515
  • Fischer, J., Lindenmayer, D.B., Manning, A.D., Biodiversity, ecosystem functions and resilience: ten guiding principles for commodity production landscapes (2006) Front. Ecol. Environ., 4, pp. 80-86
  • Fischer, J., Lindenmayer, D.B., Landscape modification and habitat fragmentation: a synthesis (2007) Glob. Ecol. Biogeogr., 16, pp. 265-280
  • Foley, J.A., DeFries, R., Asner, G.P., Barford, C., Bonan, G., Carpenter, S.R., Chapin, F.S., Snyde, P.K., Global consequences of land use (2005) Science, 309, pp. 570-574
  • Gasparri, N.I., Grau, H.R., Deforestation and fragmentation of Chaco dry forest in NW Argentina (1972-2007) (2009) For. Ecol. Manage., 258, pp. 913-921
  • Grau, R., Aide, M., Globalization and land-use transitions in Latin America (2008) Ecol. Soc., 13, p. 16. , Art
  • Grau, H.R., Gasparri, N.I., Aide, T.M., Agriculture expansion and deforestation in seasonally dry forests of north-west Argentina (2005) Environ. Conserv., 32, pp. 140-148
  • Grez, A.G., Bustamante-Sanchez, M.A., Aproximaciones experimentales en estudios de fragmentación (2006) Biodiversidad en ambientes fragmentados de Chile: patrones y procesos a diferentes escalas, pp. 17-40. , Universitaria, Santiago, A.G. Grez, J.A. Simonetti, R.O. Bustamante (Eds.)
  • Grez, A.G., Galetto, L., Fragmentación del paisaje en América Latina: ¿en qué estamos? (2011) Conservación Biológica: Perspectivas desde América Latina, pp. 63-67. , Universitaria, Santiago, J.A. Simonetti, R. Dirzo (Eds.)
  • Harper, K.A., Macdonald, S.E., Burton, P.J., Chen, J., Brosofske, K.D., Saunders, S.C., Euskirchen, E.S., Per-Anders, E., Edge influence on forest structure and composition in fragmented landscapes (2005) Conserv. Biol., 19, pp. 768-782
  • Hernández-Stefanoni, J.L., Dupuy, J.M., Effects of landscape patterns on species density and abundance of trees in a tropical subdeciduous forest of the Yucatan Peninsula (2008) For. Ecol. Manage., 255, pp. 3797-3805
  • Hobbs, R.J., Yates, C.J., Impacts of ecosystem fragmentation on plant populations: generalizing the idiosyncratic (2003) Aust. J. Bot., 51, pp. 471-488
  • Hoyos, L.E., Cingolani, A.M., Zak, M.R., Vaieretti, M.V., Gorla, D.E., Cabido, M.R., Deforestation and precipitation patterns in the arid Chaco forests of central Argentina (2013) Appl. Veg. Sci., 16, pp. 260-271
  • Lafortezza, R., Coomes, D.A., Kapos, V., Ewers, R.M., Assessing the impacts of fragmentation on plant communities in New Zealand: scaling from survey plots to landscapes (2010) Glob. Ecol. Biogeogr., 19, pp. 741-754
  • Laurance, W.F., Cochrane, M.A., Special section: synergistic effects in fragmented landscapes (2001) Conserv. Biol., 15, pp. 1488-1489
  • Lienert, J., Habitat fragmentation effects on fitness of plant populations - a review (2004) J. Nat. Conserv., 12, pp. 53-72
  • McGarigal, K., Cushman, S.A., Comparative evaluation of experimental approaches to the study of habitat fragmentation effects (2002) Ecol. Appl., 12, pp. 335-345
  • Melo, F.P., Martínez-Salas, E., Benitez-Malvido, J., Ceballos, G., Forest fragmentation reduces recruitment of large-seeded tree species in a semi deciduous tropical forest of southern Mexico (2010) J. Trop. Ecol., 26, pp. 35-43
  • Murcia, C., Edge effects in fragmented forest: implications for conservations (1995) Trends Ecol. Evol., 10, pp. 58-62
  • Oliveira, M.A., Santos, A.M.M., Tabarelli, M., Profound impoverishment of the large-tree stand in a hyper-fragmented landscape of the Atlantic Forest (2008) For. Ecol. Manage., 256, pp. 1910-1917
  • (2012) R: a language and environment for statistical computing, , R Core Team, R Foundation for Statistical Computing, Vienna, Austria
  • Sánchez-Gallen, I., Alvarez-Sanchez, F.J., Benitez-Malvido, J., Structure of the advanced regeneration community in tropical rain forest fragments of Los Tuxtlas (2010) Mexico. Biol. Conserv., 143, pp. 2111-2118
  • Santos, B.A., Peres, C.A., Oliveira, M.A., Grillo, A., Alvez-Costa, C.P., Tabarelli, M., Drastic erosion in functional attributes of tree assemblages in Atlantic forest fragments of northeastern Brazil (2008) Biol. Conserv., 141, pp. 249-260
  • Tabarelli, M., Gascon, C., Lessons from fragmentation research: Improving management and policy guidelines for biodiversity conservation (2005) Conserv. Biol., 19, pp. 734-739
  • Tabarelli, M., Peres, C.A., Melo, F.P., The 'few winners and many losers' paradigm revised: Emerging prospects for tropical forest biodiversity (2012) Biol. Conserv., 155, pp. 136-140
  • Torrella, S.A., Ginzburg, R.G., Adámoli, J.M., (2007), pp. 19-27. , Análisis multitemporal de la fragmentación y reducción del Bosque de Tres Quebrachos. En Pacha M.J., Luque S., Galetto L., Iverson, L. (Ed.), Understanding biodiversity loss: an overview of forest fragmentation in South America. IALE Landscape Research and Management papers. International Association of, Landscape Ecology; Torrella, S.A., Oakley, L., Ginzburg, R.G., Adámoli, J.M., Galetto, L., Estructura, composición y estado de conservación de la comunidad de plantas leñosas del bosque de tres quebrachos en el Chaco Subhúmedo Central (2011) Ecol. Aust., 21, pp. 179-188
  • Volante, J.N., Alcaraz-Segura, D., Mosciaro, M.J., Viglizzo, E.F., Paruelo, J.M., Ecosystem functional changes associated with land clearing in NW Argentina (2012) Agric. Ecosyst. Environ., 154, pp. 12-22
  • Underwood, A.J., (1997) Experiments in ecology, , Cambridge University Press, Cambridge
  • Zak, M.R., Cabido, M., Cáceres, D., Díaz, S., What drives accelerated land cover change in central Argentina? Synergistic consequences of climatic, socioeconomic, and technological factors (2008) Environ. Manage., 42, pp. 181-189
  • Zak, M.R., Cabido, M., Hodgson, J.G., Do subtropical seasonal forests in the Gran Chaco, Argentina, have a future? (2004) Biol. Conserv., 120, pp. 589-598

Citas:

---------- APA ----------
Torrella, S.A., Ginzburg, R.G., Adámoli, J.M. & Galetto, L. (2013) . Changes in forest structure and tree recruitment in Argentinean Chaco: Effects of fragment size and landscape forest cover. Forest Ecology and Management, 307, 147-154.
http://dx.doi.org/10.1016/j.foreco.2013.07.016
---------- CHICAGO ----------
Torrella, S.A., Ginzburg, R.G., Adámoli, J.M., Galetto, L. "Changes in forest structure and tree recruitment in Argentinean Chaco: Effects of fragment size and landscape forest cover" . Forest Ecology and Management 307 (2013) : 147-154.
http://dx.doi.org/10.1016/j.foreco.2013.07.016
---------- MLA ----------
Torrella, S.A., Ginzburg, R.G., Adámoli, J.M., Galetto, L. "Changes in forest structure and tree recruitment in Argentinean Chaco: Effects of fragment size and landscape forest cover" . Forest Ecology and Management, vol. 307, 2013, pp. 147-154.
http://dx.doi.org/10.1016/j.foreco.2013.07.016
---------- VANCOUVER ----------
Torrella, S.A., Ginzburg, R.G., Adámoli, J.M., Galetto, L. Changes in forest structure and tree recruitment in Argentinean Chaco: Effects of fragment size and landscape forest cover. For. Ecol. Manage. 2013;307:147-154.
http://dx.doi.org/10.1016/j.foreco.2013.07.016