Relating Plant Traits and Species Distributions Along Bioclimatic Gradients for 88 Leucadendron Taxa

Thuiller, Wilfried; Lavorel, Sandra; Midgley, Guy F.; Lavergne, Sébastien; Rebelo, Tony

doi:10.1890/03-0148

Cited by 268 publications

(248 citation statements)

References 47 publications

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“…While environmental constraints have been studied intensively (Thuiller et al 2004), the importance of biotic interactions for the assemblage of plant communities and coexistence of species, and their underlying mechanisms, are much less understood (Chesson 2000, HilleRisLambers et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Herbivore preference drives plant community composition

Kempel

Razanajatovo

Stein

et al. 2015

Ecology

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Abstract. Herbivores are important drivers of plant species coexistence and community assembly. However, detailed mechanistic information on how herbivores affect dominance hierarchies between plant species is scarce. Here, we used data of a multi-site herbivore exclusion experiment in grasslands to assess changes in the cover of 28 plant species in response to aboveground pesticide application. Moreover, we assessed species-specific values of plant defense of these 28 species measured as the performance of a generalist caterpillar, and the preference of the caterpillar and a slug species in no-choice and choice feeding experiments, respectively. We show that more preferred species in the feeding experiments were those that increased in cover after herbivore exclusion in the field, whereas less preferred ones decreased. Herbivore performance and several measured leaf traits were not related to the change in plant cover in the field in response to herbivore removal. Additionally, the generalist slug and the generalist caterpillar preferred and disliked the same plant species, indicating that they perceive the balance between defense and nutritional value similarly. We conclude that the growth-defense trade-off in grassland species acts via the preference of herbivores and that among-species variation in plant growth and preference to herbivores drives plant community composition.

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Section: Introductionmentioning

confidence: 99%

Herbivore preference drives plant community composition

Kempel

Razanajatovo

Stein

et al. 2015

Ecology

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“…Some of them have focused either on ecophysiological processes (Anselmi et al, 2004) or on spatial patterns by the use of statistical relationships (Luoto et al, 2005;Thuiller et al, 2004). We intend here to simultaneously investigate both issues.…”

Section: Introductionmentioning

confidence: 99%

Changes of the potential distribution area of French Mediterranean forests under global warming

2008

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Abstract. This work aims at understanding future spatial and temporal distributions of tree species in the Mediterranean region of France under various climates. We focused on two different species (Pinus Halepensis and Quercus Ilex) and compared their growth under the IPCC-B2 climate scenario in order to quantify significant changes between present and future. The influence of environmental factors such as atmospheric CO 2 increase and topography on the tree growth has also been quantified.We modeled species growth with the help of a processbased model (MAIDEN), previously calibrated over measured ecophysiological and dendrochronological series with a Bayesian scheme. The model was fed with the ARPEGE -MeteoFrance climate model, combined with an explicit increase in CO 2 atmospheric concentration. The main output of the model gives the carbon allocation in boles and thus tree production.Our results show that the MAIDEN model is correctly able to simulate pine and oak production in space and time, after detailed calibration and validation stages. Yet, these simulations, mainly based on climate, are indicative and not predictive. The comparison of simulated growth at end of 20th and 21st centuries, show a shift of the pine production optimum from about 650 to 950 m due to 2.5 K temperature increase, while no optimum has been found for oak. With the direct effect of CO 2 increase taken into account, both species show a significant increase in productivity (+26 and +43% for pine and oak respectively) at the end of the 21st century.While both species have different growth mechanisms, they have a good chance to extend their spatial distribution and their elevation in the Alps during the 21st century underCorrespondence to: C. Gaucherel (gaucherel@cirad.fr) the IPCC-B2 climate scenario. This extension is mainly due to the CO 2 fertilization effect.

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“…More advanced multivariate analyses likely outperform RDA, CCA, and NMDS. For example, co-inertia analyses such as outlying mean index (OMI; Doledec et al 2000, Thuiller et al 2004) have been shown to explain more variance than CCA or RDA. Other recent approaches such as random forest (Breiman 2001) or boosted regression trees (Elith et al 2008) have been shown to provide better prediction than logistic regression for assessing individual species distributions.…”

Section: Discussionmentioning

confidence: 99%

Seeing the forest and the trees: multilevel models reveal both species and community patterns

et al. 2012

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Abstract. Studies designed to understand species distributions and community assemblages typically use separate analytical approaches (e.g., logistic regression and ordination) to model the distribution of individual species and to relate community composition to environmental variation. Multilevel models (MLMs) offer a promising strategy for integrating species and community-level analyses. Here, we demonstrate how MLMs can be used to analyze differences in species composition of communities across environmental gradients. We first use simulated data to show that MLMs can outperform three standard methods that researchers use to identify environmental drivers of the species composition of communities, redundancy analysis (RDA), canonical correspondence analysis (CCA), and nonmetric multidimensional scaling (NMDS). In particular, MLMs can separate the effects of collinearity among environmental drivers and factor out the effect of changes in overall species abundances or occurrences that do not involve changes in composition. We then apply MLMs to presence/absence data for 14 species of understory herbs and topographic, biotic, and edaphic variables measured in 54 forested plots in the Southern Appalachian Mountains. In addition to providing information about community composition, MLMs simultaneously identify the responses of individual species to the environmental variables. Thus, MLMs not only have potentially superior statistical properties in analyses of community composition compared to standard methods, but they simultaneously provide detailed information about species-specific responses underlying the changes in community composition.

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Relating Plant Traits and Species Distributions Along Bioclimatic Gradients for 88 Leucadendron Taxa

Cited by 268 publications

References 47 publications

Herbivore preference drives plant community composition

Herbivore preference drives plant community composition

Changes of the potential distribution area of French Mediterranean forests under global warming

Seeing the forest and the trees: multilevel models reveal both species and community patterns

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