Diversity, habitat endemicity and trophic ecology of the fauna of Loki’s Castle vent field on the Arctic Mid-Ocean Ridge

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Янв. 2, 2024

Abstract Loki’s Castle Vent Field (LCVF, 2300 m) was discovered in 2008 and represents the first black-smoker vent field on Arctic Mid-Ocean Ridge (AMOR). However, a comprehensive faunal inventory of LCVF has not yet been published, hindering inclusion biogeographic analyses fauna. There is an urgent need to understand diversity, spatial distribution ecosystem function biological communities along AMOR, which will inform environmental impact assesments future deep-sea mining activities region. Therefore, our aim with this paper provide fauna at present insight into food web community. The high degree novelty, five new species previously described another ten awaiting formal description. Most from are either hydrothermal specialists or have reported other chemosynthesis-based ecosystems. highest taxon richness found diffuse venting areas may be promoted by biogenic habitat generated foundation Sclerolinum contortum . isotopic signatures community show clear influence chemosynthetic primary production foodweb. Considering novel specialised documented paper, vents AMOR should regarded as vulnerable marine ecosystems protective measures must therefore implemented, especially considering potential threat resource exploration exploitation near future.

Язык: Английский

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Climate change impact on the distribution and priority areas for conservation of Sterculia setigera Delile in Benin, West Africa

Trees Forests and People, Год журнала: 2025, Номер unknown, С. 100840 - 100840

Опубликована: Март 1, 2025

Язык: Английский

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Development of SSR Markers and Evaluation of Genetic Diversity of Endangered Plant Saussurea involucrata

Biomolecules, Год журнала: 2024, Номер 14(8), С. 1010 - 1010

Опубликована: Авг. 15, 2024

The conservation biology field underscores the importance of understanding genetic diversity and gene flow within plant populations factors that influence them. This study employs Simple Sequence Repeat (SSR) molecular markers to investigate endangered species

Язык: Английский

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The relevance of genetic structure in ecotype designation and conservation management

Evolutionary Applications, Год журнала: 2021, Номер 15(2), С. 185 - 202

Опубликована: Дек. 24, 2021

The concept of ecotypes is complex, partly because its interdisciplinary nature, but the idea intrinsically valuable for evolutionary biology and applied conservation. complex nature has spurred some confusion inconsistencies in literature, thereby limiting broader theoretical development practical application. We provide suggestions how incorporating genetic analyses can ease help define ecotypes. approach this by systematically reviewing 112 publications across taxa that simultaneously mention terms

Язык: Английский

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Combining biotelemetry and genetics provides complementary insights relevant to the management and conservation of a freshwater predator (Esox lucius) living in brackish lagoons

Aquatic Sciences, Год журнала: 2024, Номер 86(3)

Опубликована: Июнь 25, 2024

Abstract To inform the management of wild fish populations, it is equally important to understand both ecological connectivity habitat patches, apparent at annual and seasonal scales, genetic connectivity, emerging evolutionary scales across generations. Ecological indicates potential for rapid recolonization upon local depletion, while informs about conservation needs related evolution subpopulations ecotypes in metapopulations. We combined acoustic biotelemetry pooled-genome sequencing study a northern pike ( Esox lucius ) population as model freshwater piscivore that inhabits network shallow brackish lagoons southern Baltic Sea. found limited among genetically similar pike, suggesting metapopulation structure characterized by discrete with infrequent migrations between them. Connectivity different increased during spawning, directed spawning either rivers or low salinity patches connected lake-like bays. Spawning site fidelity sites was observed, further contributing reproductive isolation certain subpopulations. The aligned gradients geographical distance significant pairs draining into lagoon network, but unrelated connectivity. results collectively suggest may not rapidly replenish depletion even weak sufficient maintain homogeneity levels. Effective species forming metapopulations, such coastal studied here, necessitate localized approaches adapt fishing mortality abundance promote access specific habitats, especially rivers, conserve entire biodiversity foster resilience metapopulation.

Язык: Английский

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Identification of Two Common Bottlenose Dolphin (Tursiops truncatus) Ecotypes in the Guadeloupe Archipelago, Eastern Caribbean

Animals, Год журнала: 2025, Номер 15(1), С. 108 - 108

Опубликована: Янв. 5, 2025

The common bottlenose dolphin (Tursiops truncatus) exhibits significant intraspecific diversity globally, with distinct ecotypes identified in various regions. In the Guadeloupe archipelago, citizen science NGO OMMAG has been monitoring these dolphins for over a decade, documenting two morphotypes. This study investigates whether morphotypes represent coastal and oceanic ecotypes, which have not previously region. We characterized morphological differences between morphotypes, analyzed genetic variation individuals stranded around past ten years, modeled their habitats. Results revealed that align described Atlantic Ocean, forming groups corresponding to Caribbean ecotypes. Habitat modeling showed habitat preferences These findings provide strong evidence existence of T. truncatus Guadeloupe. Considering varied risks exposure maritime traffic, our suggests should be managed as separate units within species better inform conservation strategies

Язык: Английский

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Analysis of silybin A and silybin B in different accessions of Silybum marianum seeds

Journal of Applied Biological Chemistry, Год журнала: 2024, Номер 67

Опубликована: Май 13, 2024

Silybum marianum more commonly known as milk thistle is one of the most well-researched medicinal plants, particularly for treatment liver disease.Silbyin A and silybin B are compounds found in silymarin complex, phytochemical responsible bioactivity S. marianum.Silymarin currently widely used a dietary supplement.In this study, contents mixture (silybin B) different accessions seeds were determined using high-performance liquid chromatography (HPLC).The aqueous extracts evaporated resuspended with HPLC-grade 70% acetonitrile analysis.The was quantified reverse-phase column gradient elution system wavelength 288 nm.Among total 14 samples (samples S1-S14) from accessions, S4, S1, S7 showed high concentrations B, ranging approximately 19 to 27 mg/g ext.Determining presence quantifying content crucial identify alternative optimal sources therapeutic compounds, thereby increasing number available medicines.

Язык: Английский

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Genotypic variation, phylogeography, unified species concept, and the ‘grey zone’ of taxonomic uncertainty in kānuka: recognition of Kunzea ericoides (A.Rich.) Joy Thomps. sens. lat. (Myrtaceae)

New Zealand Journal of Botany, Год журнала: 2023, Номер 62(1), С. 53 - 82

Опубликована: Янв. 12, 2023

In vascular plant systematics there are sometimes conflicts between phenotypic and ecotypic variation genetic differentiation that challenge species concepts, introduce taxonomic confusion, create nomenclatural uncertainty. Until a 2014 revision segregated Kunzea ericoides into 10 species, it K. sinclairii were the only recognised in New Zealand. A recent DNA microsatellite study failed to support any of new instead revealing biogeographic variation. Here we present results genotyping by sequencing with 1,361 single nucleotide polymorphisms (SNPs), sampling 48 populations representing four from South Island southern North Island. The SNP confirms findings: two widespread robusta serotina, indistinguishable share northern genotypes other species; metapopulation lineage reflects national north-to-south clinal pattern; population is low net migration high. significant isolation distance pattern was revealed SNPs. explicitly based on unified concept, but primary criterion, each represents separate lineage, not demonstrated. Species recognition morphological ecological criteria have proved difficult apply. Applying concept criterion now recognise just Zealand ericoides, constituting synonyms. doing so, distinguish grey zone uncertainty incomplete sorting, gene flow coupled lack reproductive isolation, partial differentiation. As demonstrated revision, considerable regional likely be conservation importance. We suggest informal ecotypes better way this level

Язык: Английский

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Defining conservation units in a species complex with genomic-taxonomic discordance: a case study of Conospermum caeruleum (Proteaceae)

Biodiversity and Conservation, Год журнала: 2023, Номер 32(6), С. 1949 - 1975

Опубликована: Март 25, 2023

Язык: Английский

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Towards a genomic resolution of the Phengaris alcon species complex

Conservation Genetics, Год журнала: 2024, Номер 25(3), С. 823 - 834

Опубликована: Янв. 28, 2024

Abstract Taxonomic entities below the species level often pose difficulties for conservation practice, especially when they are ecologically distinct from nominal species. Genomic tools provide opportunity to study and potentially resolve such cryptic diversity. The Alcon blue butterfly Phengaris alcon complex is a example, comprising different ecotypes or even subspecies, one of them high elevation taxon P. rebeli European Alps. We sequenced first reference genome . Furthermore, we generated whole resequence data individuals three Swiss ecotypes, i.e., low , mid alpine integrated genomic across Europe relationship among these ecotypes. At scale, our results suggest that complex, biogeography evolutionary context diversification more multifaceted than previously suggested, falling in range recent ecological speciation. In Switzerland, were genetically isolated with only limited current gene flow between them. Past flow, however, could have given rise ecotype. Our findings emphasise Alps should be treated as highlights how availability assemblies allows address so far open taxonomic questions research broadscale studies needed understand biogeographic history apparent diversification.

Язык: Английский

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