Loss of phylogenetic and functional originalities of woody cerrado species in simulated extinction scenarios

Rosatti, Natália Bianca; Silva, Danilo Muniz; Batalha, Marco Antônio

doi:10.1111/aec.12210

Cited by 8 publications

(9 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, there have been more studies directed on the functional attributes of species: a finite number of physiological, anatomical, behavioural or life-history traits reflecting the roles that species play within communities and ecosystems (e.g. Petchey et al, 2007;Mouillot et al, 2008;Magnuson-Ford et al, 2009;Schmera et al, 2009a;Thompson et al, 2010;Buisson et al 2013;Mouillot et al, 2013;Godet et al, 2015;Rosatti et al, 2015). This diversity of approaches led different authors to use the terms distinctiveness, originality and uniqueness in different meanings.…”

Section: Introductionmentioning

confidence: 99%

From phylogenetic to functional originality: Guide through indices and new developments

Pavoine

Bonsall

Dupaix

et al. 2017

Ecological Indicators

View full text Add to dashboard Cite

In biodiversity studies a species is often classified as original when it has few closely related species, a definition\ud that reflects its phylogenetic originality. More recently, studies have focussed on biological or functional traits\ud that reflect the role(s) that species play within communities and ecosystems. This has led many studies to an\ud alternative evaluation of species’ originality: its functional originality. Most indices of species' originality were\ud developed to treat the hierarchical structure of a (phylogenetic) tree. The change in perspective from measures of\ud phylogenetic originality to measures of functional originality thus raises methodological issues particularly\ud around the need to develop indices explicitly appropriate for evaluating functional trait-based originality. We\ud compare indices of species' originality including a new index which we develop to evaluate (1) whether phylogenetic\ud originality could serve as a proxy for functional originality in conservation and ecological studies; (2)\ud whether the transformation of functional data into functional trees modifies the way species are ranked according\ud to their originality measures compared to approaches that directly rely on pairwise functional dissimilarities\ud among species; and more generally, (3) whether different indices provide different views on how original\ud species are from each other, hence reflecting different ecological and evolutionary processes that generated\ud patterns of originality. Using simulations and a real case study, we show that: (1) the strong effects of the choice\ud of a clustering approach can affect reported levels of dissimilarities among species; (2) the tree-based approaches\ud could better reflect the trait-generating processes under constant (Brownian) rates of evolution; and (3) phylogenetic\ud originality measures can depart from functional originality measures when species have large amount\ud of independent evolution. Overall, phylogenies may be used at large scales but cannot replace functional approaches\ud designed for depicting community assembly. Indeed, traits involved in ecological processes may have\ud various histories and thus moderate phylogenetic signals. Our comparative study provides approaches and\ud perspectives on the analysis of originality across biological scales of organization from individuals, through\ud populations, up to the originalities of communities and regions

show abstract

Section: Introductionmentioning

confidence: 99%

From phylogenetic to functional originality: Guide through indices and new developments

Pavoine

Bonsall

Dupaix

et al. 2017

Ecological Indicators

View full text Add to dashboard Cite

show abstract

“…In recent decades, particular attention has also been paid to species' functional traits that indicate species' roles in ecosystem functioning (e.g. Lavorel & Garnier, ; Mouillot et al, ; Schmera, Erős & Podani, 2009; Buisson et al, ; Mouillot et al, ; Rosatti, Silva, & Batalha, ; Brandl et al, ). The assumption that phylogenies indirectly comprise the evolutionary changes in species' characters may explain why the first originality approaches were inferred from phylogenetic trees.…”

Section: Rarity and Originality: Two Entangled Conceptsmentioning

confidence: 99%

“…Instead, it is usually evaluated at the regional and local levels, as species' characteristics are directly related to ecosystem functioning and depend mostly on field data (Da Silva , Silva & Batalha, ; Mouillot et al, ; Rosatti et al , ). Several of these studies have underlined the potential vulnerability of functionally original species (Mouillot et al, ) and the negative impact of human disturbance on these species, with potential consequences on the sustainability of ecosystems (Rosatti et al , ). However, these conclusions may depend on the taxa, traits and geographic areas analysed (Da Silva et al , ; Brandl et al, ).…”

Section: Rarity and Originality: Two Entangled Conceptsmentioning

confidence: 99%

“…The removal of such species from a community could result in a considerable reduction in ecosystem functioning (Mouillot et al, ; Bender et al, ), with no possibility for other species to compensate for their loss (Leitão et al, ). For example, using species extinction simulations, Rosatti et al () showed that, under extinction scenarios based on abundance and fire tolerance, the probability of losing the most functionally original woody cerrado species was higher than that expected by chance, while the loss of phylogenetically original species was random. In this case study, trait‐based functional originality could thus be an indicator of species vulnerability defined based on species rarity and fire sensitivity.…”

Section: Reconciling the Diversity Rarity And Originality Concepts Fmentioning

confidence: 99%

See 1 more Smart Citation

Reconciling the concepts and measures of diversity, rarity and originality in ecology and evolution

2019

View full text Add to dashboard Cite

The concept of biological diversity, or biodiversity, is at the core of evolutionary and ecological studies. Many indices of biodiversity have been developed in the last four decades, with species being one of the central units of these indices. However, evolutionary and ecological studies need a precise description of species' characteristics to best quantify inter‐species diversity, as species are not equivalent and exchangeable. One of the first concepts characterizing species in biodiversity studies was abundance‐based rarity. Abundance‐based rarity was then complemented by trait‐ and phylo‐based rarity, called species' trait‐based and phylogenetic originalities, respectively. Originality, which is a property of an individual species, represents a species' contribution to the overall diversity of a reference set of species. Originality can also be defined as the rarity of a species' characteristics such as the state of a functional trait, which is often assumed to be represented by the position of the species on a phylogenetic tree. We review and compare various approaches for measuring originality, rarity and diversity and demonstrate that (i) even if attempts to bridge these concepts do exist, only a few ecological and evolutionary studies have tried to combine them all in the past two decades; (ii) phylo‐ and trait‐based diversity indices can be written as a function of species rarity and originality measures in several ways; and (iii) there is a need for the joint use of these three types of indices to understand community assembly processes and species' roles in ecosystem functioning in order to protect biodiversity efficiently.

show abstract

“…functional diversity-FD, sensu Petchey & Gaston, 2002). These metrics can in turn be informative about the set of functions performed by a species assemblage (Batalha, Cianciaruso, & Motta Junior, 2010;Rosatti, Silva, & Batalha, 2015).…”

mentioning

confidence: 99%

Simulation of over‐exploitation of ornamental fish and its consequences for the functional structure of assemblages of Amazonian streams

Castanho

Deus

Zuanon

et al. 2019

Ecology of Freshwater Fish

View full text Add to dashboard Cite

The consequences of over‐exploitation may seriously impair the integrity and functioning of ecosystems. When loss of species is accompanied by the loss of ecological processes, the effects are no longer just taxonomic and may affect the stability of the environments. Ornamental fishing is one of the main economic activities of the middle Negro River. Such activity is directed to a small number of species and has the Cardinal Tetra (Paracheirodon axelrodi) as the main target species. Given the potential effects this pressure and the lack of information on its consequences, the present study analysed, through simulations, the possible effects of depletion of ornamental fish populations on the functional structure of fish assemblages, represented by functional diversity (FD) and functional redundancy (FR) indexes. We sampled 13 streams exploited by the ornamental fishery, where we collected 4,286 specimens of 110 species, of which 22 were targeted as ornamental fishing. We found that the ornamental species corresponded, on average, to 27.8% of the species and 33.3% of the FD of the assemblages. In a scenario of complete exclusion of ornamental species, local communities would lose 24.6% of the FD and reduce up to 12% of the FR. With these results, it is possible to infer that the local extinction of exploited species would cause negative impacts on the multifunctionality and the resilience of the streams ecosystems. In this way, we emphasise the need for proper management of the ornamental fisheries aiming to the sustainability of the activity and to the conservation of ecosystem functionality.

show abstract

Loss of phylogenetic and functional originalities of woody cerrado species in simulated extinction scenarios

Cited by 8 publications

References 48 publications

From phylogenetic to functional originality: Guide through indices and new developments

From phylogenetic to functional originality: Guide through indices and new developments

Reconciling the concepts and measures of diversity, rarity and originality in ecology and evolution

Simulation of over‐exploitation of ornamental fish and its consequences for the functional structure of assemblages of Amazonian streams

Contact Info

Product

Resources

About