Identifying conservation priorities of a pantropical plant lineage: a case study in Scleria (Cyperaceae) DOI Open Access
Javier Galán Díaz, Steven P. Bachman, Félix Forest

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 25, 2024

Abstract Scleria is a pantropical genus of annual and perennial herbs the sixth largest in Cyperaceae family with around 261 species. In this study, we produced preliminary extinction risk assessments for ∼30% species that do not yet have global Red List assessment followed Evolutionarily Distinct Globally Endangered (EDGE2) Ecologically (EoDGE) protocols to identify evolutionary ecologically unique at greatest hotspots rare endangered Our results indicate 38 78 included List, 26% genus, are potentially threatened extinction. The equally distributed across phylogeny, Afrotropics Neotropics accumulate most Eleven ecoregions mostly from four African (Madagascar, D.R. Congo, Zambia Tanzania) two South American (Brazil, Venezuela) countries almost half stand out terms their sum EDGE2 scores. Phylogenetic functional distinctiveness metrics were largely uncorrelated, EcoDGE metric points towards as reservoirs distinctive species: Brazil, Venezuela, Bolivia, Peru, Colombia, Guyana Dominican Republic. Recent methodological advances identification at-risk novel framework emerge powerful tools conservation priorities.

Language: Английский

Spatial decoupling of taxon richness, phylogenetic diversity, and threat status in the megagenus Erica DOI Creative Commons
Michael D. Pirie, Dirk U. Bellstedt, Roderick W. Bouman

et al.

Published: April 5, 2024

Estimates of the number vascular plant species currently under threat extinction are shockingly high, with highest rates reported for narrow-range, woody plants, especially in biodiversity hotspots Mediterranean and tropical climates. The large genus Erica is a prime example, as proportion its 851 species, all shrubs or small trees, endemic to Cape Floristic Region (CFR) South Africa. Almost two hundred known be threatened further ‘Data Deficient’. We need target conservation efforts research fill most problematic knowledge gaps. This can challenging genera, such Erica, numerous that more less closely related. One approach involves combining phylogenetic diversity IUCN status identify evolutionarily distinct globally endangered (EDGE) species. present an expanded improved hypothesis (representing 65% described diversity) combine this available distribution data geographic areas could targeted effort maximise preservation (PD). resulting 39 EDGE taxa include 35 from CFR. A 32 high PD, deficient mostly outside CFR, reflecting low assessed taxon rich found south-western They not phylogenetically diverse, but do PD. These results cross-referenced existing living seed banked ex situ collections used new updated assessments action.

Language: Английский

Citations

5
Why plant diversity and distribution matter DOI Open Access
Alexandre Antonelli, Rafaël Govaerts, Eimear Nic Lughadha

et al.

New Phytologist, Journal Year: 2023, Volume and Issue: 240(4), P. 1331 - 1336

Published: Oct. 9, 2023

This article is the Editorial for Special Collection ‘Global plant diversity and distribution’. See https://www.newphytologist.org/global-plant-diversity more details.

Language: Английский

Citations

9
Spatial decoupling of taxon richness, phylogenetic diversity and threat status in the megagenus Erica (Ericaceae) DOI Creative Commons
Michael D. Pirie, Dirk U. Bellstedt, Roderick W. Bouman

et al.

PhytoKeys, Journal Year: 2024, Volume and Issue: 244, P. 127 - 150

Published: July 10, 2024

Estimates of the number vascular plant species currently under threat extinction are shockingly high, with highest rates reported for narrow-range, woody plants, especially in biodiversity hotspots Mediterranean and tropical climates. The large genus Erica is a prime example, as proportion its 851 species, all shrubs or small trees, endemic to Cape Floristic Region (CFR) South Africa. Almost two hundred known be threatened further ‘Data Deficient’. We need target conservation efforts research fill most problematic knowledge gaps. This can challenging genera, such , numerous that closely related. One approach involves combining phylogenetic diversity IUCN status identify Evolutionarily Distinct Globally Endangered (EDGE) species. present an expanded improved hypothesis (representing 65% described diversity) combine this available distribution data geographic areas could targeted effort maximise preservation (PD). resulting 39 EDGE taxa include 35 from CFR. A 32 high PD, deficient mostly outside CFR, reflecting low assessed taxon-rich found south-western They not phylogenetically diverse, but do PD. These results cross-referenced existing living seed-banked ex situ collections used new updated assessments action.

Language: Английский

Citations

2
Genome size is positively correlated with extinction risk in herbaceous angiosperms DOI Creative Commons
Marybel Soto Gomez, Matilda J. M. Brown, Samuel Pironon

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 11, 2023

Summary Angiosperms with large genomes experience nuclear-, cellular- and organism-level constraints that may limit their phenotypic plasticity ecological niche. These have been documented to vary across lineages, life-history strategies, ecogeographic patterns environmental conditions. Therefore, we test the hypotheses extinction risk is higher in large-genomed compared small-genomed species, effect of genome size varies three selected covariates: life form, endemism, climatic zones. We collated information for a representative sample angiosperms comprising 3,250 which analyzed alongside endemism climate variables using phylogenetic framework. Angiosperm positively correlated risk, pattern driven by signal herbaceous but not woody regardless endemism. The influence stronger endemic relatively homogenous different climates. Beyond its indirect link via climate, also influences directly significantly. Genome serve as proxy difficult-to-measure parameters associated resilience vulnerability angiosperms. it merits further exploration useful biological attribute understanding intrinsic augmenting plant conservation efforts.

Language: Английский

Citations

6
An updated DNA barcoding tool for Aloe vera and related CITES-regulated species DOI
Yannick Woudstra,

Paul Stromberg Rees,

Solofo E. Rakotoarisoa

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 13, 2024

Abstract DNA barcoding has revolutionised the identification of illegally traded material endangered species as it overcomes lack resolution encountered with morphological identification. Nonetheless, in recently evolved and highly diverse clades, such relatives Aloe vera , interspecific sequence variation standardised markers compromises efficacy. We present a new tool using 189 nuclear markers, optimised for aloes (Asphodelaceae, Alooideae). built comprehensive reference dataset from taxonomically verified sources >300 validated its reliability phylogenomic inference. Seven anonymised samples botanical collections ten plants seized at London Heathrow Airport were correctly identified to level, including critically Madagascar. Commercially purchased confirmed be advertised. An accurate, reliable method aloe introduces assurance regulatory processes trade.

Language: Английский

Citations

1
A global study of the geographic range size of epiphytes DOI Creative Commons
Vida J. Svahnström, Eimear Nic Lughadha, Félix Forest

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 21, 2023

Abstract Epiphytes have long been considered to larger geographic range sizes than terrestrial plants, yet evidence for this claim comes from studies at restricted and taxonomic scales is contrary that of some recent studies. We examined if epiphytes or smaller plants tested epiphytism a likely driver differences in size globally across angiosperms. integrated global datasets on angiosperm taxonomy, distribution, lifeform calculate three metrics. there were significant mean between angiosperms within epiphyte-rich families using ordinary phylogenetic regression models. On average, closely related species, supporting the hypothesis favours dispersal into areas. However, species where prevalent tend small regardless their lifeform. A high proportion close relatives are rare vulnerably sizes, per se does not cause rarity. Evolutionary histories shared traits lineages underlie observed rarity ranges.

Language: Английский

Citations

2
Identifying conservation priorities of a pantropical plant lineage: a case study in Scleria (Cyperaceae) DOI Open Access
Javier Galán Díaz, Steven P. Bachman, Félix Forest

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 25, 2024

Abstract Scleria is a pantropical genus of annual and perennial herbs the sixth largest in Cyperaceae family with around 261 species. In this study, we produced preliminary extinction risk assessments for ∼30% species that do not yet have global Red List assessment followed Evolutionarily Distinct Globally Endangered (EDGE2) Ecologically (EoDGE) protocols to identify evolutionary ecologically unique at greatest hotspots rare endangered Our results indicate 38 78 included List, 26% genus, are potentially threatened extinction. The equally distributed across phylogeny, Afrotropics Neotropics accumulate most Eleven ecoregions mostly from four African (Madagascar, D.R. Congo, Zambia Tanzania) two South American (Brazil, Venezuela) countries almost half stand out terms their sum EDGE2 scores. Phylogenetic functional distinctiveness metrics were largely uncorrelated, EcoDGE metric points towards as reservoirs distinctive species: Brazil, Venezuela, Bolivia, Peru, Colombia, Guyana Dominican Republic. Recent methodological advances identification at-risk novel framework emerge powerful tools conservation priorities.

Language: Английский

Citations

0