Spatial patterns of genus‐level phylogenetic endemism in the tree flora of Mediterranean Europe

Albassatneh, Marwan Cheikh; Monnet, Anne‐Christine; Baccheta, Gianni; Bagnoli, Francesca; Dimopoulos, Panayotis; Hampe, Arndt; Leriche, Agathe; Mèdail, Frédéric; Nikolić, Toni; Ponger, Loïc; Vendramin, Giovanni G.; Fady, Bruno

doi:10.1111/ddi.13241

Cited by 23 publications

(11 citation statements)

References 92 publications

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“…The only available large‐scale, dated phylogeny was produced very recently and was done at the genus level (Cheikh Albassatneh et al . 2021). And the first species dataset of traits and occurrences has only recently been assembled (Monnet et al .…”

Section: Introductionmentioning

confidence: 99%

“…Surprisingly, comprehensive phylogenetic and functional trait datasets are scarce for Mediterranean tree species. The only available large-scale, dated phylogeny was produced very recently and was done at the genus level (Cheikh Albassatneh et al 2021). And the first species dataset of traits and occurrences has only recently been assembled (Monnet et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Effect of environmental and spatial factors on the phylogenetic and functional diversity of the Mediterranean tree communities of Europe

et al. 2023

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The tree flora of the Mediterranean Basin contains an outstanding taxonomic richness and a high proportion of endemic taxa. Contrary to other regions of the Mediterranean biome, a comprehensive phylogenetic analysis of the relationship between phylogenetic diversity, trait diversity and environmental factors in a spatial ecological context is lacking. We inferred the first calibrated phylogeny of 203 native tree species occurring in the European Mediterranean Basin based on 12 DNA regions. Using a set of four functional traits, we computed phylogenetic diversity for all 10,042 grid cells of 10 × 10 km spatial resolution to completely cover Mediterranean Europe. Then, we tested the spatial influence of environmental factors on tree diversity. Our results suggest that the nature of the relationship between traits and phylogeny varies among the different studied traits and according to the evolutionary distance considered. Phylogenetic diversity and functional diversity of European Mediterranean trees correlated strongly with species richness. High values of these diversity indices were located in the north of the study area, at high altitude, and minimum temperature of the coldest month. In contrast, the two phylogenetic indices that were not correlated with species richness (Mean Phylogenetic Distance, Phylogenetic Species Variability) were located in the south of the study area and were positively correlated with high altitude, soil organic carbon stock and sand soil texture. Our study provides support for the use of phylogenies in conservation biology to assess ecosystem functioning, and provides insights for the implementation of sustainable forest ecosystem management.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of environmental and spatial factors on the phylogenetic and functional diversity of the Mediterranean tree communities of Europe

et al. 2023

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“…The first large‐scale spatial phylogenetic analyses began to appear in 2014, initially focused on Australia because herbarium digitization reached a critical mass there first (González‐Orozco et al, 2015, 2016; Mishler et al, 2014; Nagalingum et al, 2015; Schmidt‐Lebuhn et al, 2015; Thornhill et al, 2016). Later studies expanded around the world to New Zealand (Heenan et al, 2017), California (Thornhill et al, 2017), Chile (Scherson et al, 2017), the Pacific Northwest (Link‐Pérez & Laffan, 2018), Mexico (Sosa et al, 2018), Wisconsin (Spalink et al, 2018), Florida (Allen et al, 2019), conifers of the world (Mekala et al, 2019), Norway (Mienna et al, 2020), Africa (Dagallier et al, 2020), Mediterranean Europe (Cheikh Albassatneh et al, 2021), Italy (Bartoli et al, 2021), Greece (Kougioumoutzis et al, 2020, 2021), all of North America (Carter et al, 2022; Mishler et al, 2020), China (Zhang et al, 2021, 2022; Zhu et al, 2021) and Japan (Nitta et al, 2022).…”

Section: Historymentioning

confidence: 99%

Spatial phylogenetics

Mishler

2023

Journal of Biogeography

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The metric called phylogenetic diversity (PD) has been employed over the last 30 years to add an evolutionary dimension to the exploration of biodiversity. However, the application of PD was until recently limited by both technology and methodology. Newly available distributional data from global museum databasing efforts, rapidly increasing coverage of DNA sequence data and improvements to computer hardware and software have enabled a new ‘big data’ approach to the application of PD‐based metrics and randomization‐based hypothesis tests called ‘spatial phylogenetics’. It can be defined most simply as turning a phylogeny into a GIS layer, which can then be used with other GIS layers to understand drivers of phylodiversity patterns and for conservation prioritization. Alpha and beta phylodiversity can be measured using different ways of representing branch lengths on a given topology (called ‘facets’), each yielding a different, interesting perspective that are best viewed in combination. Challenges posed by available data need to be addressed through careful cleaning and gathering further data in a targeted manner. Spatial phylogenetics is only in its infancy, showing much promise but with many elements awaiting expansion to address further questions.

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“…Tree flora have been shown to be important biodiversity surrogates for highly heterogeneous areas (Latini et al 2017), like Algeria. A recent study indicated that some Mediterranean areas contain a disproportionately high phylogenetic diversity with a concentration of palaeo-endemic species (Cheikh Albassatneh et al 2021). Hence, a focus on tree species constitutes a key issue to assess floristic diversity and develop proper conservation strategies (Médail et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Checklist of the native tree flora of Algeria: diversity, distribution, and conservation

Meddour¹,

Meddour-Sahar²,

Mèdail³

2021

Pl. Ecol. Evol.

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Background and aims – Trees represent an important component of many ecosystems of the world. The knowledge of their diversity and geographic distribution is of great theoretical and practical importance. This paper aims to provide the first comprehensive checklist of native tree taxa in Algeria. Material and methods – The checklist was based on the analysis of published data and has been improved with own field observations. Statistical analysis has been performed on the taxonomic richness, life forms, and chorological spectra in terms of diversity, endemism, habitats, and distribution of the tree flora in Algeria. The conservation status following IUCN and the protection status at national level have been presented.Key results – The checklist comprises 120 native tree taxa currently known in Algeria, including 106 species, one hybrid species, and 13 subspecies, belonging to 63 genera and 35 families. The four most species-rich families are Rosaceae (13 spp.), Fabaceae (12 spp.), Salicaceae (9 spp.), and Tamaricaceae (9 spp.). The richest genus is Tamarix (9 spp.), followed by Quercus (7 taxa in 6 spp.). We found that trees are more often single-stemmed (45%), and are small or medium-sized. Mediterranean element is dominant (46%), followed by Saharo-arabic (17%), wide distribution element (15%), and European elements (12%). Furthermore, 11% of all tree taxa are endemics or subendemics. The highest number of taxa (71%) is found in the Tellian area, whereas the lowest number (36%) occurs in the Saharan area. Only nine taxa are considered to be threatened or near threatened, while 36 taxa are yet not assessed. This analysis highlights 33 taxa with patrimonial value, both endemics and range-restricted. Out of these taxa, only 18 are protected by national legislation. Conclusion – This work shows that a relatively rich tree flora is found in Algeria. It aims to be used as a tool for managing tree species diversity. Some of the tree taxa need appropriate measures for their in situ conservation, a challenging but worth pursuing target.

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Spatial patterns of genus‐level phylogenetic endemism in the tree flora of Mediterranean Europe

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 23 publications

References 92 publications

Effect of environmental and spatial factors on the phylogenetic and functional diversity of the Mediterranean tree communities of Europe

Effect of environmental and spatial factors on the phylogenetic and functional diversity of the Mediterranean tree communities of Europe

Spatial phylogenetics

Checklist of the native tree flora of Algeria: diversity, distribution, and conservation

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