Journal of Vegetation Science

Cover image for Vol. 24 Issue 2

March 2013

Volume 24, Issue 2

Pages 209–414

  1. Commentaries

    1. Top of page
    2. Commentaries
    3. Ordinary Articles
    1. You have free access to this content
      Seeing the unseen by remote sensing: satellite imagery applied to species distribution modelling (pages 209–210)

      Duccio Rocchini

      Version of Record online: 24 JAN 2013 | DOI: 10.1111/jvs.12029

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      Remotely-sensed proxies have been acknowledged as powerful tools for estimating species’ spatial distributions, whatever the taxonomic group being considered. Jiang et al. (2013) provide a robust example of seeing the unseen by remote sensing, predicting the distribution of epiphyllous liverworts from SPOT Vegetation remotely-sensed data.

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      Termite mounds as browsing hotspots: an exception to the rule (pages 211–213)

      T.G. O'Connor

      Version of Record online: 24 JAN 2013 | DOI: 10.1111/jvs.12032

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      Termite mounds in African savannahs, browsing hot-spots for mammals owing to their soil fertility, normally support palatable species. However, Van der Plas et al. (this issue) describe an area where the matrix soil is nutrient-rich, so the mounds are no more fertile than the matrix and support tree species that are unpalatable.

  2. Ordinary Articles

    1. Top of page
    2. Commentaries
    3. Ordinary Articles
    1. Hyper-temporal remote sensing helps in relating epiphyllous liverworts and evergreen forests (pages 214–226)

      Yanbin Jiang, C.A.J.M. de Bie, Tiejun Wang, A.K. Skidmore, Xuehua Liu, Shanshan Song and Xiaoming Shao

      Version of Record online: 3 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01453.x

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      We examined the relationship between the fraction of evergreen forests and the presence probability of epiphyllous liverworts at the macro-habitat scale in Southern China using hyper-temporal satellite imagery. We found a significant positive correlation between these two parameters. Additionally, the fraction of evergreen forests and the presence probability of liverworts can directly be inferred by making use of SPOT-VGT NDVI imagery.

    2. Functional traits of trees on and off termite mounds: understanding the origin of biotically-driven heterogeneity in savannas (pages 227–238)

      F. Van der Plas, R. Howison, J. Reinders, W. Fokkema and H. Olff

      Version of Record online: 31 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01459.x

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      In African savannahs, Macrotermes termite mounds have been shown to support unique tree communities, acting as ‘browsing hotspots’. Here, we show that tree species dominating mounds seem to be less adapted to fire, low nutrient availability and water stress than typical savannah trees. Surprisingly, mound tree species are less nutritious and less preferred by browsers than other savannah trees.

    3. Management alters interspecific leaf trait relationships and trait-based species rankings in permanent meadows (pages 239–250)

      Laura Rose, Marie C. Rubarth, Dietrich Hertel and Christoph Leuschner

      Version of Record online: 30 JUL 2012 | DOI: 10.1111/j.1654-1103.2012.01455.x

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      In temperate meadow systems the strength of relationships between plant functional traits and functional diversity can be altered by land-use intensification within one species set. Species responses to the factors fertilization and cutting frequency are considerably variable causing inconsistency in species ranking. This result has implications for the use of species trait values from databases for predicting community trait syndromes.

    4. Inconsistencies between theory and methodology: a recurrent problem in ordination studies (pages 251–268)

      M.P. Austin

      Version of Record online: 21 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01467.x

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      Comparisons of ordination methods are confounded by differences in algorithm, dissimilarity measure, data standardisation and ecological model assumed. This historical review recognises the relevance of three conceptual models, use of artificial data and the unresolved problem of standardisation. Ordination using non-metric multidimensional scaling, Bray-Curtis coefficient and stand standardisation rather than correspondence analysis is recommended as the current default option.

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      Shifts of forest species along an elevational gradient in Southeast France: climate change or stand maturation? (pages 269–283)

      Jeanne Bodin, Vincent Badeau, Eric Bruno, Catherine Cluzeau, Jean-Marc Moisselin, Gian-Reto Walther and Jean-Luc Dupouey

      Version of Record online: 21 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01456.x

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      Altitudinal shift of forest plant species was studied in South-East France, by analyzing the last two successive samplings of the National Forest Inventory. Considering plant species traits and changes in the successional stages of forests stands, the apparent upslope movement of species was mainly caused by forest closure and maturation occurring at low elevations, rather than by climate change.

    6. Determinants of tree species turnover in a southern Amazonian rain forest (pages 284–295)

      Maximilien Guèze, Jaime Paneque-Gálvez, Ana C. Luz, Joan Pino, Marti Orta-Martínez, Victoria Reyes-García and Manuel J. Macía

      Version of Record online: 13 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01461.x

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      In this work, we quantify the relative importance of environmental variables and dispersal limitation factors in explaining tree species turnover in 55 0.1-ha tierra firme forest plots in the Bolivian Amazon. We show that soil variables and dispersal limitation explain similar percentages of turnover, and that this result is consistent amongst different diameter classes.

    7. Changes in the abundance of keystone forest floor species in response to changes of forest structure (pages 296–306)

      Per-Ola Hedwall, Jörg Brunet, Annika Nordin and Johan Bergh

      Version of Record online: 1 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01457.x

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      Key-stone species in the forest floor vegetation have decreased in abundance together with an increase in forest density and a decrease in forest age in boreal Sweden during the last decades. This study shows that forest structure has a strong impact on these species and that the structural changes probably have contributed substantially to the observed changes in species abundance.

    8. Colonization of limestone grasslands by woody plants: the role of seed limitation and herbivory by vertebrates (pages 307–319)

      J. Laborde and K. Thompson

      Version of Record online: 7 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01463.x

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      In a factorial field experiment in limestone grassland, we found that grazing by vertebrates exerts a dual control on scrub invasion. Livestock maintains a dense, compact turf that interferes with the seed germination and seedling growth of woody plants. Grazing also gives rise to differential survival of woody species as a function of their ability to resist browsing.

    9. Intensification of domestic ungulate grazing delays secondary forest succession: evidence from exclosure plots (pages 320–331)

      N.A. Laskurain, A. Aldezabal, J.M. Olano, J. Loidi and A. Escudero

      Version of Record online: 7 SEP 2012 | DOI: 10.1111/j.1654-1103.2012.01469.x

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      Land abandonment is leading to secondary succession in large areas of Europe. Simultaneously, herbivore pressure is increasing in some places due to sharp changes in management practices. Differential response to herbivory between early and late succesional species may alter forest dynamics. Sheep trampling increases seedling establishment of early successional species, while late successional species are negatively affected by browsing.

    10. Community-level consequences of cattle grazing for an invaded grassland: variable responses of native and exotic vegetation (pages 332–343)

      Meghan J. Skaer, Dawn J. Graydon and J. Hall Cushman

      Version of Record online: 17 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01460.x

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      We summarize results from a 3-year experiment that evaluated the impact of cattle grazing on the species richness and cover of native and exotic plants from different life-history and life-form groups in a coastal grassland in central California. Grazing strongly altered the composition of this highly invaded community, with responses depending on geographic origin and ecological characteristics of plant groups.

    11. Facilitation of holm oak recruitment through two contrasted shrubs species in Mediterranean grazed woodlands (pages 344–355)

      Víctor Rolo, Tobias Plieninger and Gerardo Moreno

      Version of Record online: 1 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01458.x

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      We studied the effect of two contrasted shrub species on tree regeneration in Mediterranean grazed oak woodlands. Each shrub species showed the capability to affect the regeneration process in specific ways. Both favored early tree recruitment, but showed diverging effects for older stages, suggesting the major role that different shrub species may have on the conservation of degraded oak woodlands.

    12. Above- and below-ground biomass and carbon dynamics in Brazilian Cerrado wet grasslands (pages 356–364)

      Alessandra Fidelis, Maria Fernanda di Santi Lyra and Vânia Regina Pivello

      Version of Record online: 17 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01465.x

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      Fire plays an important role in Brazilian tropical savannas, affecting both above- and belowground biomass and carbon stocks. In this study we analysed the biomass and carbon dynamics from both above-, and belowground according to different fire histories and season. Our results showed that these grasslands can store a large amount of carbon belowground and the longer the interval of fire, the higher the amount of dead biomass accumulated due to the low decomposition rates

    13. Salinity tolerance and the decoupling of resource axis plant traits (pages 365–374)

      Anthony S. Eallonardo Jr, Donald J. Leopold, Jason D. Fridley and John C. Stella

      Version of Record online: 12 SEP 2012 | DOI: 10.1111/j.1654-1103.2012.01470.x

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      Elevated soil salinity favors species with high leaf nitrogen per area, and this trait is principal on a salinity axis of specialization that also includes as key traits: leaf size, photosynthetic pathway, and leaf succulence. Location on the salinity axis is a strong predictor of species presence and relative abundance in inland salt and freshwater marsh communities.

    14. Disentangling the effects of water and nutrients for studying the outcome of plant interactions in sand dune ecosystems (pages 375–383)

      Yoann Le Bagousse-Pinguet, Estelle Forey, Blaise Touzard and Richard Michalet

      Version of Record online: 16 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01462.x

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      We assessed the role of water vs nutrient in changing plant interactions (responses and effects) in a dune system. Nutrient availability drove the neighbouring effect whereas water availability affected the target species responses. Changes in a stress factor may induce a collapse of interactions through neighbour effects or a shift in plant interactions through target species responses.

    15. Disentangling the role of edaphic variability, flooding regime and topography of Amazonian white-sand vegetation (pages 384–394)

      Gabriel Damasco, Alberto Vicentini, Carolina V. Castilho, Tânia P. Pimentel and Henrique E.M. Nascimento

      Version of Record online: 13 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01464.x

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      We aimed to assess which environmental factors (soil, flooding and topography) better explain the variation in floristic composition and structure of Amazonian white-sand vegetations (Campinaranas). Although soils are predominantly sandy and oligotrophic, our findings highlighted the importance of soil texture and fertility in structuring plant communities of seasonally flooded white-sand vegetations at mesoscales in the Amazon Basin.

    16. Changes in fire intensity have carry-over effects on plant responses after the next fire in southern California chaparral (pages 395–404)

      José M. Moreno, Iván Torres, Belén Luna, Walter C. Oechel and Jon E. Keeley

      Version of Record online: 13 AUG 2012 | DOI: 10.1111/j.1654-1103.2012.01466.x

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      Fire intensity in 1987 experimental burns did not affect fire severity in a 2003 wildfire. Survival of Adenostoma fasciculatum was very low, regardless of fire intensity in 1987. Recruitment of Adenostoma increased, and of Ceanothus greggii decreased, with increased fire intensity in 1987. This shows a carry-over effect of fire intensity on plant recruitment across a fire cycle.

    17. Application of a Kohonen's self-organizing map for evaluation of long-term changes in forest vegetation (pages 405–414)

      Jolanta J. Adamczyk, Maria Kurzac, Young-Seuk Park and Andrzej Kruk

      Version of Record online: 4 SEP 2012 | DOI: 10.1111/j.1654-1103.2012.01468.x

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      A transformation from Querco roboris-Pinetum to Tilio cordatae-Carpinetum betuli in the Babsk nature reserve (Poland) over 1960–1991 is presented. A Kohonen's Self-Organizing Map (unsupervised neural network), which is robust to non-linear relationships between variables and their non-normal distributions, was effectively applied for recognition of patterns in plant communities investigated with the classical Braun-Blanquet phytosociological method based on the ordinal scale.