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  • 1 Universidade Federal do Rio Grande do Sul. Av Bento Gonçalves 9500 Programa de Pós-Graduação em Ecologia CP 15007 CEP 91501-970 Porto Alegre Brazil
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The vegetation in the southern Brazilian highlands is characterized by Araucaria forest and Campos grassland. Evidences indicate that Araucaria forest is currently expanding over grassland and that this expansion may occur by nucleation or edge dynamics. Nucleation mechanisms of Araucaria forest expansion are well documented, whereas mechanisms of expansion starting from the forest edge are not. In this study, we aimed (1) to assess how prominent is Araucaria forest expansion over Campos grassland starting from the forest edge, and (2) to discuss about the possible mechanisms underlying sapling community colonization in grassland. We conducted our sampling in 11 transects disposed from the forest edge towards the grassland. The transects were distributed in four study sites. Each transect was 50 m long and was divided into 25 plots with area of 8 m2. All forest woody sapling individuals were identified and registered. We considered distance from forest edge, presence of dead shrubs, Baccharis uncinella cover, nurse tree cover and rock cover as predictors of forest plant abundance and composition. Niche and distance contribution on the explanation of sapling composition and abundance were partitioned using, respectively, canonical correspondence analysis and multiple regressions. Cover of nurse trees explained almost 31% of total variation in sapling abundance, followed by the distance from the forest edge that explained 6.9%. Site explained 7.6% of total variation in sapling species composition, followed by distance from the forest edge, which explained 2.3%, whereas niche had a minor (2.1%) and non-significant proportion of variation explanation. Our findings show that Araucaria forest expansion over native grasslands in southern Brazil relies deeply on the nurse plant effect. Previous studies have demonstrated that Araucaria forest forms nuclei scattered in the grassland where nurse plants or nurse rocks are established. Here, we bring evidences that nurse plants are important also to the tree encroachment starting closer to the forest edge. This study provides new information on the mechanisms involved in the forest expansion over native grasslands.

  • Almeida, J. A. 2009. Fatores abióticos. In: Biodiversidade dos campos do Planalto das Araucárias (ed. I. I. Boldrini). MMA, BrasÍlia, pp. 19–38.

    Almeida J. A. , '', in Biodiversidade dos campos do Planalto das Araucárias , (2009 ) -.

  • Alonso, D., R. S. Etienne and A. J. McKane. 2006. The merits of neutral theory. Trends in Ecology and Evolution 21: 451–457.

    McKane A. J. , 'The merits of neutral theory ' (2006 ) 21 Trends in Ecology and Evolution : 451 -457.

    • Search Google Scholar
  • Anon. 2010. IPNI — The International Plant Names Index. URL: http://www.ipni.org [accessed December 2010]

  • Archer, S., C. Scifres, C. R. Bassham and R. Maggio. 1988. Autogenic succession in a subtropical savanna: conversion of grassland to thorn woodland. Ecol. Monogr. 58: 111–127.

    Maggio R. , 'Autogenic succession in a subtropical savanna: conversion of grassland to thorn woodland ' (1988 ) 58 Ecol. Monogr. : 111 -127.

    • Search Google Scholar
  • Behling, H. 2002. South and southeast Brazilian grasslands during Late Quaternary times: a synthesis. Palaeogeogr. Palaeoclimatol. Palaeoecol. 177: 19–27.

    Behling H. , 'South and southeast Brazilian grasslands during Late Quaternary times: a synthesis ' (2002 ) 177 Palaeogeogr. Palaeoclimatol. Palaeoecol. : 19 -27.

    • Search Google Scholar
  • Bell, G. 2001. Neutral macroecology. Science 293: 2413–2418.

    Bell G. , 'Neutral macroecology ' (2001 ) 293 Science : 2413 -2418.

  • Bond, W. J. 2008. What limits trees in C4 grasslands and savannas? Annu. Rev. Ecol. Evol. Syst. 39: 641–659.

    Bond W. J. , 'What limits trees in C4 grasslands and savannas? ' (2008 ) 39 Annu. Rev. Ecol. Evol. Syst. : 641 -659.

    • Search Google Scholar
  • Borcard, D., P. Legendre and P. Drapeau. 1992. Partialling out the spatial component of ecological variation. Ecology 73: 1045–1055.

    Drapeau P. , 'Partialling out the spatial component of ecological variation ' (1992 ) 73 Ecology : 1045 -1055.

    • Search Google Scholar
  • Callaway, R. M. 1995. Positive interactions among plants. Bot. Rev. 61: 306–349.

    Callaway R. M. , 'Positive interactions among plants ' (1995 ) 61 Bot. Rev. : 306 -349.

  • Carlucci, M. B., L. D. S. Duarte and V. D. Pillar. 2011. Nurse rocks influence forest expansion over native grassland in southern Brazil. J. Veg. Sci. 22: 111–119.

    Pillar V. D. , 'Nurse rocks influence forest expansion over native grassland in southern Brazil ' (2011 ) 22 J. Veg. Sci. : 111 -119.

    • Search Google Scholar
  • Clark, J. S. 2009. Beyond neutral science. Trends in Ecology and Evolution 24: 8–15.

    Clark J. S. , 'Beyond neutral science ' (2009 ) 24 Trends in Ecology and Evolution : 8 -15.

  • Cubiña, A and T. M. Aide. 2001. The effect of distance from forest edge on seed rain and soil seed bank in a tropical pasture. Biotropica 33: 260–267.

    Aide T. M. , 'The effect of distance from forest edge on seed rain and soil seed bank in a tropical pasture ' (2001 ) 33 Biotropica : 260 -267.

    • Search Google Scholar
  • Duarte, L. D. S., M. M. G. dos Santos, S. M. Hartz and V. D. Pillar. 2006a. Role of nurse plants in Araucaria Forest expansion over grasslands in south Brazil. Austral. Ecol. 31: 520–528.

    Pillar V. D. , 'Role of nurse plants in Araucaria Forest expansion over grasslands in south Brazil ' (2006 ) 31 Austral. Ecol. : 520 -528.

    • Search Google Scholar
  • Duarte, L. D. S., R. E. Machado, S. M. Hartz and V. D. Pillar. 2006b. What saplings can tell us about forest expansion over natural grasslands. J. Veg. Sci. 17: 799–808.

    Pillar V. D. , 'What saplings can tell us about forest expansion over natural grasslands ' (2006 ) 17 J. Veg. Sci. : 799 -808.

    • Search Google Scholar
  • Duarte, L. D. S., M. B. Carlucci, S. M. Hartz and V. D. Pillar. 2007. Plant dispersal strategies and the colonization of Araucaria forest patches in a grassland-forest mosaic. J. Veg. Sci. 18: 847–858.

    Pillar V. D. , 'Plant dispersal strategies and the colonization of Araucaria forest patches in a grassland-forest mosaic ' (2007 ) 18 J. Veg. Sci. : 847 -858.

    • Search Google Scholar
  • Duarte, L. D. S., G. S. Hoffmann, M.M. G. Dos Santos, S. M. Hartz and V. D. Pillar. 2010. Testing for the influence of niche and neutral factors on sapling community assembly beneath isolated woody plants in grasslands. J. Veg. Sci. 21: 462–471.

    Pillar V. D. , 'Testing for the influence of niche and neutral factors on sapling community assembly beneath isolated woody plants in grasslands ' (2010 ) 21 J. Veg. Sci. : 462 -471.

    • Search Google Scholar
  • Dümig, A., P. Schad, C. Rumpel, M. F. Dignac and I. Kögel-Knabner. 2008. Araucaria forest expansion on grassland in the southern Brazilian highlands as revealed by 14C and ·13C studies. Geoderma 145: 143–157.

    Kögel-Knabner I. , 'Araucaria forest expansion on grassland in the southern Brazilian highlands as revealed by 14C and ·13C studies ' (2008 ) 145 Geoderma : 143 -157.

    • Search Google Scholar
  • Guevara, S., J. Meave, P. Moreno-Casasola and J. Laborde. 1992. Floristic composition and structure of vegetation under isolated trees in neotropical pastures. J. Veg. Sci. 3: 655–664.

    Laborde J. , 'Floristic composition and structure of vegetation under isolated trees in neotropical pastures ' (1992 ) 3 J. Veg. Sci. : 655 -664.

    • Search Google Scholar
  • Holl, K. D. 1999. Factors limiting tropical rain forest regeneration in abandoned pasture: seed rain, seed germination, microclimate, and soil. Biotropica 31: 229–242.

    Holl K. D. , 'Factors limiting tropical rain forest regeneration in abandoned pasture: seed rain, seed germination, microclimate, and soil ' (1999 ) 31 Biotropica : 229 -242.

    • Search Google Scholar
  • Hijmans, R. J., S. E. Cameron, J. L. Parra, P. G. Jones and A. Jarvis. 2005. Very high resolution interpolated climate surfaces for global land areas. Intl. J. Climatol. 25: 1965–1978 (data available at http://www.worldclim.org/ )

    Jarvis A. , 'Very high resolution interpolated climate surfaces for global land areas ' (2005 ) 25 Intl. J. Climatol. : 1965 -1978.

    • Search Google Scholar
  • Hubbell, S. P. 2001. The Unified Neutral Theory of Biodiversity and Biogeography. Princeton University Press, Princeton.

    Hubbell S. P. , '', in The Unified Neutral Theory of Biodiversity and Biogeography , (2001 ) -.

  • Legendre, P. and L. Legendre. 1998. Numerical Ecology. 2nd ed. Elsevier, Amsterdam.

    Legendre L. , '', in Numerical Ecology , (1998 ) -.

  • McGill, B. J., B. J. Enquist, E. Weiher and M. Westoby. 2006. Rebuilding community ecology from functional traits. Trends in Ecology and Evolution 21: 178–185.

    Westoby M. , 'Rebuilding community ecology from functional traits ' (2006 ) 21 Trends in Ecology and Evolution : 178 -185.

    • Search Google Scholar
  • Økland, R.H. 2003. Partitioning the variation in a plot-by-species data matrix that is related to n sets of explanatory variables. J. Veg. Sci. 14: 693–700.

    Økland R.H. , 'Partitioning the variation in a plot-by-species data matrix that is related to n sets of explanatory variables ' (2003 ) 14 J. Veg. Sci. : 693 -700.

    • Search Google Scholar
  • Oliveira, J. M. and V. D. Pillar. 2004. Vegetation dynamics on mosaics of Campos and Araucaria forest between 1974 and 1999 in Southern Brazil. Community Ecol. 5: 197–202.

    Pillar V. D. , 'Vegetation dynamics on mosaics of Campos and Araucaria forest between 1974 and 1999 in Southern Brazil ' (2004 ) 5 Community Ecol. : 197 -202.

    • Search Google Scholar
  • Overbeck, G. E., S. C. Müller, A. Fidelis, J. Pfadenhauer, V. D. Pillar, C. C. Blanco, I. I. Boldrini, R. Both and E. D. Forneck. 2007. Brazil’s neglected biome: the South Brazilian Campos. Perspectives in Plant Ecology, Evolution and Systematics 9: 101–116.

    Forneck E. D. , 'Brazil’s neglected biome: the South Brazilian Campos ' (2007 ) 9 Perspectives in Plant Ecology, Evolution and Systematics : 101 -116.

    • Search Google Scholar
  • Pausas, J. G., A. Bonet, F.T. Maestre and A. Climent. 2006. The role of the perch effect on the nucleation process in Mediterranean semi-arid oldfields. Acta Oecol. 29: 346–352.

    Climent A. , 'The role of the perch effect on the nucleation process in Mediterranean semi-arid oldfields ' (2006 ) 29 Acta Oecol. : 346 -352.

    • Search Google Scholar
  • Pillar, V. D. and F. L. F. de Quadros. 1997. Grassland-forest boundaries in southern Brazil. Coenoses 12: 119–126.

    Quadros F. L. F. , 'Grassland-forest boundaries in southern Brazil ' (1997 ) 12 Coenoses : 119 -126.

    • Search Google Scholar
  • R Development Core Team. 2009. R — A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. URL: [ http://www.R-project.org ]

    '', in R — A language and environment for statistical computing , (2009 ) -.

  • Rambo, B. 1956. A fisionomia do Rio Grande do Sul. 2nd ed. Selbach, Porto Alegre.

    Rambo B. , '', in A fisionomia do Rio Grande do Sul , (1956 ) -.

  • Silva, L. C. R., M. Anand, J. M. Oliveira and V. D. Pillar. 2009. Past century changes in Araucaria angustifolia (Bertol.) Kuntze water use efficiency and growth in forest and grassland ecosystems of southern Brazil: implications for forest expansion. Global Change Biol. 15: 2387–2396.

    Pillar V. D. , 'Past century changes in Araucaria angustifolia (Bertol.) Kuntze water use efficiency and growth in forest and grassland ecosystems of southern Brazil: implications for forest expansion ' (2009 ) 15 Global Change Biol. : 2387 -2396.

    • Search Google Scholar
  • Ter Braak, C. J. F. and P. Smilauer. 2002. CANOCO reference manual and CanoDraw for Windows user’s guide: software for canonical community ordination (version 4.5). Microcomputer Power, Ithaca.

    Smilauer P. , '', in CANOCO reference manual and CanoDraw for Windows user’s guide: software for canonical community ordination (version 4.5) , (2002 ) -.

  • Turner, R. M., S. M. Alcorn, G. Olin and J. A. Booth. 1966. The influence of shade, soil, and water on saguaro seedling establishment. Bot. Gaz. 127: 95–102.

    Booth J. A. , 'The influence of shade, soil, and water on saguaro seedling establishment ' (1966 ) 127 Bot. Gaz. : 95 -102.

    • Search Google Scholar
  • Zobel, M. 1997. The relative role of species pools in determining plant species richness: an alternative explanation of species coexistence? Trends in Ecology and Evolution 12: 266–269.

    Zobel M. , 'The relative role of species pools in determining plant species richness: an alternative explanation of species coexistence? ' (1997 ) 12 Trends in Ecology and Evolution : 266 -269.

    • Search Google Scholar

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Senior editors

Editor(s)-in-Chief: Podani, János

Editor(s)-in-Chief: Jordán, Ferenc

Honorary Editor(s): Orlóci, László

Editorial Board

  • Madhur Anand, CAN (forest ecology, computational ecology, and ecological complexity)
  • S. Bagella, ITA (temporal dynamics, including succession, community level patterns of species richness and diversity, experimental studies of plant, animal and microbial communities, plant communities of the Mediterranean)
  • P. Batáry, HUN (landscape ecology, agroecology, ecosystem services)
  • P. A. V. Borges, PRT (community level patterns of species richness and diversity, sampling in theory and practice)
  • A. Davis, GER (supervised learning, multitrophic interactions, food webs, multivariate analysis, ecological statistics, experimental design, fractals, parasitoids, species diversity, community assembly, ticks, biodiversity, climate change, biological networks, cranes, olfactometry, evolution)
  • Z. Elek, HUN (insect ecology, invertebrate conservation, population dynamics, especially of long-term field studies, insect sampling)
  • T. Kalapos, HUN (community level plant ecophysiology, grassland ecology, vegetation-soil relationship)
  • G. M. Kovács, HUN (microbial ecology, plant-fungus interactions, mycorrhizas)
  • W. C. Liu,TWN (community-based ecological theory and modelling issues, temporal dynamics, including succession, trophic interactions, competition, species response to the environment)
  • L. Mucina, AUS (vegetation survey, syntaxonomy, evolutionary community ecology, assembly rules, global vegetation patterns, mediterranean ecology)
  • P. Ódor, HUN (plant communities, bryophyte ecology, numerical methods)
  • F. Rigal, FRA (island biogeography, macroecology, functional diversity, arthropod ecology)
  • D. Rocchini, ITA (biodiversity, multiple scales, spatial scales, species distribution, spatial ecology, remote sensing, ecological informatics, computational ecology)
  • F. Samu, HUN (landscape ecology, biological control, generalist predators, spiders, arthropods, conservation biology, sampling methods)
  • U. Scharler, ZAF (ecological networks, food webs, estuaries, marine, mangroves, stoichiometry, temperate, subtropical)
  • D. Schmera, HUN (aquatic communities, functional diversity, ecological theory)
  • M. Scotti, GER (community-based ecological theory and modelling issues, trophic interactions, competition, species response to the environment, ecological networks)
  • B. Tóthmérész, HUN (biodiversity, soil zoology, spatial models, macroecology, ecological modeling)
  • S. Wollrab, GER (aquatic ecology, food web dynamics, plankton ecology, predator-prey interactions)

 

Advisory Board

  • S. Bartha, HUN
  • S.L. Collins, USA
  • T. Czárán, HUN
  • E. Feoli, ITA
  • N. Kenkel, CAN
  • J. Lepš, CZE
  • S. Mazzoleni, ITA
  • Cs. Moskát, HUN
  • B. Oborny, HUN
  • M.W. Palmer, USA
  • G.P. Patil, USA
  • V. de Patta Pillar, BRA
  • C. Ricotta, ITA
  • Á. Szentesi, HUN

PODANI, JÁNOS
E-mail: podani@ludens.elte.hu


JORDÁN, FERENC
E-mail: jordan.ferenc@gmail.com

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Community Ecology
Language English
Size A4
Year of
Foundation
2000
Volumes
per Year
1
Issues
per Year
2
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
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ISSN 1585-8553 (Print)
ISSN 1588-2756 (Online)