Assessing the Vulnerability of Medicinal and Aromatic Plants to Climate and Land-Use Changes in a Mediterranean Biodiversity Hotspot

Land, Journal Year: 2024, Volume and Issue: 13(2), P. 133 - 133

Published: Jan. 24, 2024

Medicinal and Aromatic Plants (MAPs) play a critical role in providing ecosystem services through their provision of herbal remedies, food natural skin care products, integration into local economies, maintaining pollinators’ diversity populations functioning. Mountainous regions, such as Chelmos-Vouraikos National Park (CVNP), represent unique reservoirs endemic MAP that require conservation prioritisation. This study aims to provide insights the sustainable management MAPs, contributing efforts protect Mediterranean biodiversity amid dual challenges climate land-use change, using suite macroecological modelling techniques. Following Species Distribution Modelling framework, we investigated vulnerability non-endemic MAPs changes. We examined potential shifts diversity, distribution, hotspots within CVNP. Our results revealed species-specific responses, with taxa facing severe range contractions initially expanding but eventually declining, particularly under change scenarios. Local are projected shift altitudinally, considerable area losses coming decades elevated species turnover predicted throughout CVNP, leading biotic homogenization. Climate changes jointly threaten calling for adaptive strategies, thus highlighting importance proactive measures, awareness raising, establishing plant micro-reserves, assisted translocation, promoting harvesting these offers vital managing global pressures, stressing need integrate ecological socioeconomic factors.

Language: Английский

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Modelling the present potential habitat distribution of the near-threatened endemic species Silene marizii : implications for conservation

Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 10

Published: Jan. 20, 2025

Species Distribution Models (SDMs) have been increasingly used in biodiversity conservation tasks, especially for rare and threatened species. In this study, we selected Silene marizii, a near-threatened endemic species distributed the central north-western Iberian Peninsula. We total of 88 occurrences, reduced to 67 after accounting spatial correlation, obtained from field surveys, herbaria GBIF. As potential predictors, 34 variables (23 bioclimatic, 7 edaphic, 4 topographic) Maxent. The Maxent model performed well, demonstrating high predictive accuracy. predictors that contributed most were precipitation seasonality, amount driest month, pH index, weight percentage sand particles, mean monthly coldest quarter, diurnal air temperature range daily quarter. Our results suggested following areas further exploration new populations and, if necessary, reintroductions translocation efforts: northern half Portugal, southern Galicia, northwest Zamora province several mountain ranges Central System. conclusion, robust models are now fundamental conducting more efficient fieldwork, ultimately improving management plans such as S. marizii.

Language: Английский

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Improving success rates of remote conservation translocations by mitigating harsh in-situ environmental conditions: A case study on a Critically Endangered succulent

Journal for Nature Conservation, Journal Year: 2025, Volume and Issue: unknown, P. 126851 - 126851

Published: Jan. 1, 2025

Language: Английский

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Intraspecific diversity poorly predicts invasibility and invasiveness in communities: a meta‐analysis of experimental invasions

Oikos, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Identifying the biotic factors underlying invasion success into existing communities is critical to understand dynamics of biological invasions; and while some studies suggest that intraspecific diversity may play an important role, there has not been a systematic evaluation evidence. We performed meta‐analysis on 37 experimental 109 effect sizes test two hypotheses: 1) higher in resident population decreases likelihood it being successfully invaded by other species, 2) invading increases its ability invade another species or community. found heterogeneous effects among overall genetic very small, non‐significant negative success, invader positive effect. The minimal impact somewhat unexpected, given well‐understood mechanisms analogous those offered for interspecific diversity. These include sampling complementarity, which expected maximize resource use increase density, thereby reducing niche availability subsequent invasibility. recommend future research focus wider organisms, longer term experiments, measure dissimilarity better role

Language: Английский

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DdRAD sequencing of the endangered species Primula Palinuri Petagna reveals high levels of inter-population diversity

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 30, 2025

Population genetics studies provide information regarding genetic diversity and structure of populations. This can in turn be used to inform conservation strategies. In view programmed efforts, we aimed at investigating the composition Primula palinuri Petagna, an endemic vulnerable species Southern Italy. Ninety-one individuals P. from seven populations were investigated using double digest Restriction Associated DNA sequencing (ddRAD-seq) a total 99,014 Single nucleotide polymorphisms (SNPs) identified. Low levels heterozygosity (0.08-0.12) high kinship (0.20-0.30) inbreeding (0.34-0.49) detected all study Kinship computed irrespective population was low, suggesting that level inter-population relatedness is low. Analysis showed differentiated each other formed three major clusters, broadly corresponding geographic sampling locations. We identified SNPs mostly contributing separation reduced set 40 successfully discriminate between clusters. conclusion, our shows sampled have low heterozygosity, intra-population variability variability.

Language: Английский

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Populations restored using regional seed are genetically diverse and similar to natural populations in the region

Journal of Applied Ecology, Journal Year: 2021, Volume and Issue: 59(9), P. 2234 - 2244

Published: Oct. 26, 2021

Abstract Ecological restoration and plant re‐introductions aim to create populations that are genetically similar natural preserve the regional gene pool, yet diverse allow adaptation a changing environment. For this purpose, seeds for increasingly sourced from multiple in target region. However, it has only rarely been tested whether using seed indeed leads restored which populations. We used single nucleotide polymorphism (SNP) markers investigate genetic diversity within differentiation among of Centaurea jacea Betonica officinalis on meadows White Carpathians, Czech Republic. The took place 20 years ago propagated mix source included original our analysis compare with their origin (only C. ). Additionally, we analysed conventional without certified because these would have constituted common alternative seeding absence seeds. between (mean pairwise F ST = 0.018 0.021 ) was ( 0.023 0.021), were slightly more than In addition, relatively origin, 0.015). contrast, strongly differentiated all 0.100 0.059, respectively) harboured substantially lower diversity. also found signs flow via pollen or dispersal but not vice versa . Policy implications Regionally can produce at levels differentiation.

Language: Английский

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Disentangling the effects of population mixing and propagule amount in rare plant translocations

Biological Conservation, Journal Year: 2025, Volume and Issue: 306, P. 111132 - 111132

Published: April 6, 2025

Language: Английский

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Genetic Diversity and Population Differentiation of Naked Carp (Gymnocypris przewalskii) Revealed by Cytochrome Oxidase Subunit I and D-Loop

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: April 11, 2022

The genetic diversity in the naked carp ( Gymnocypris przewalskii ) of China is threatened by climate change, human activities, as well natural factors, eliciting conservation concerns. To explore aspects G. , diversity, structure, population differentiation, and historical demography 566 representative individuals from seven geographically distinct ranges Qinghai Lake were evaluated mitochondrial DNA cytochrome oxidase subunit I COI D-loop sequences. Estimates parameters showed that populations had high levels haplotype (0.50243–0.94620) low nucleotide (0.00079–0.00624). Haplotype genealogy indicated there was no obvious phylogenetic pattern between haplotypes. Both markers denoted absence structure [the differentiation coefficient F-statistics (Fst) < 0] presence flow COI: 0. 9731–1.0441; D-loop: 0.9480–1.0398). mismatch distribution neutrality tests supported evidence expansion, which occurred during late middle Pleistocene [ : 0.36–0.108 MYA (Million Years Ago); 0.497–0.165 MYA]. Furthermore, this work illustrated two simple, reliable, inexpensive molecular for analysis while sensitivity region a reflection higher than gene.

Language: Английский

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Assessing Population Genetic Status for Designing Plant Translocations

Frontiers in Conservation Science, Journal Year: 2022, Volume and Issue: 3

Published: Feb. 7, 2022

Assisted gene flow interventions such as plant translocations are valuable complementary techniques to habitat restoration. Bringing new genetic variants can contribute increasing diversity and evolutionary resilience, counteract inbreeding depression improve fitness through heterosis. Large, highly genetically variable populations usually recommended sources for translocation. Unfortunately, many critically endangered species only occur small populations, which expected show low variation, high level, paucity of compatible mates in self-incompatible species, increased divergence. Therefore, assessment population status is required an appropriate choice the source populations. In this paper, we exemplify different analyses relevant evaluation combining both molecular (plastid nuclear) markers fitness-related quantitative traits. We assessed adult generation their seed progeny (the potential translocation founders) Campanula glomerata (Campanulaceae), a insect-pollinated herbaceous Belgium. Only few remain, so that has been part restoration project calcareous grasslands implementing translocations. particular, estimated diversity, levels, structure adults progeny, recent bottlenecks, clonal extent adults, contemporary flow, effective size ( N e ), parentage, sibship variation. Small C. presented extensive pollen within with multiple parentage among progenies, could be good candidates As differentiated from each other, mixing will not optimize number translocated but also representativeness regional diversity. Genetic no immediate threat persistence, , restricted among-population evidence processes leading erosion, require management measures these trends stochastic vulnerability. Habitat facilitating recruitment, flowering pollination, reconnecting by biological corridors or stepping stones, creating protected areas particularly recommended.

Language: Английский

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A community‐driven captive‐breeding and reintroduction program maintains genetic diversity in a threatened freshwater fish

Conservation Science and Practice, Journal Year: 2023, Volume and Issue: 6(1)

Published: Dec. 7, 2023

Abstract Collaborative approaches to conservation management are critical respond the ongoing biodiversity crisis. However, local community involvement in many actions is lacking, especially within translocation and reintroduction programs. Similarly, rapid integration of genetic information into collaborative programs with communities rarely conducted. Here, we describe a community‐based program for threatened Australian freshwater fish, southern pygmy perch ( Nannoperca australis ). We integrate on‐the‐ground efforts by volunteers from communities, captive breeding private aquarium business, analyses done research institution provide holistic framework perch. evaluated diversity, population structure, relatedness, inbreeding across duration using data neutral adaptive genomic markers. This allowed us assess ability such minimize retain variation, promote potential reintroduced population. While variation source populations was very low, found no decrease diversity or increase program. These findings support made will further inform future reintroductions as part framework. expand on our empirical case study describing theoretical integrating genomics community‐led identifying benefits collaboration. Our highlights importance multifaceted integrated effectively protect manage species.

Language: Английский

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