Inferring genetic structure when there is little: population genetics versus genomics of the threatened bat Miniopterus schreibersii across Europe

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Янв. 27, 2023

Abstract Despite their paramount importance in molecular ecology and conservation, genetic diversity structure remain challenging to quantify with traditional genotyping methods. Next-generation sequencing holds great promises, but this has not been properly tested highly mobile species. In article, we compared microsatellite RAD-sequencing (RAD-seq) analyses investigate population the declining bent-winged bat ( Miniopterus schreibersii ) across Europe. Both markers retrieved general patterns of weak range-wide differentiation, little sex-biased dispersal, strong isolation by distance that associated significant between three Mediterranean Peninsulas, which could have acted as glacial refugia. Microsatellites proved uninformative individual-based analyses, resolution offered genomic SNPs illuminated on regional substructures within several countries, colonies sharing migrators distinct ancestry without admixture. This finding is consistent a marked philopatry spatial partitioning mating rearing grounds species, was suspected from marked-recaptured data. Our study advocates data are necessary unveil footprints left biogeographic processes social organization long-distant flyers, otherwise rapidly blurred high levels gene flow.

Язык: Английский

---

Population genomics and conservation management of the threatened black-footed tree-rat (Mesembriomys gouldii) in northern Australia

Heredity, Год журнала: 2023, Номер 130(5), С. 278 - 288

Опубликована: Март 10, 2023

Genomic diversity is a fundamental component of Earth's total biodiversity, and requires explicit consideration in efforts to conserve biodiversity. To genomic diversity, it necessary measure its spatial distribution, quantify the contribution that any intraspecific evolutionary lineages make overall diversity. Here, we describe range-wide population structure threatened Australian rodent, black-footed tree-rat (Mesembriomys gouldii), aiming provide insight into timing extent declines across large region with dearth long-term monitoring data. By estimating recent trajectories effective sizes at four localities, confirm widespread decline species' range, but find peri-urban area Darwin has been more stable. Based on current sampling, Melville Island made greatest allelic richness species, prioritisation analysis suggested conservation Cobourg Peninsula populations would be most cost-effective scenario retain than 90% all alleles. Our results broadly sub-specific taxonomy, crucial data distribution help prioritise limited resources. Along additional sampling from far eastern western edges suggest range research priorities could improve fine scales, including retention expansion structurally complex habitat patches.

Язык: Английский

---

Seaweed restocking along the Chilean coast: History, present, and inspiring recommendations for sustainability

Frontiers in Marine Science, Год журнала: 2023, Номер 9

Опубликована: Янв. 9, 2023

Several seaweed species are commercialized worldwide both due to high demand for food and feed as a raw material the extraction of phycocolloids such agar, carrageenan, alginates that used broadly in food, cosmetic, pharmaceutical industries. Chile is world’s leading marine biomass producer when it comes exploitation natural kelp beds. This pressure has persisted decades resulted reduction stocks along benthic ecosystems Chilean coast. Over last three decades, several strategies aimed at restoring have been implemented (i.e., sexual asexual reproduction, use spore-type propagules or fragments thalli, entire thallus transplants). Success rates varied, but biological feasibility demonstrated species. However, technological improvements must be achieved move from small-scale, pilot experiments cost-effective restocking easy transfer fisher communities another end-user, scalable field conditions, socio-ecologically sustainable. Researchers other geographic areas explored similar pathways developing tackled research gaps regarding its massification. work summarizes activities carried out recent search sustainable restore algal Chile.

Язык: Английский

---

Plant conservation in Australia: Current directions and future challenges

Plant Diversity, Год журнала: 2017, Номер 39(6), С. 348 - 356

Опубликована: Сен. 22, 2017

Australia is a large, old and flat island continent that became isolated following the breakup of Gondwanan super continent. After more than 40–50 M years independent evolution, approx. 600,000–700,000 species now call home. More 21,000 these are plants, with at least 84% being endemic. Plant taxa protected, conserved managed under range legislation State- Territory-level as well Federally for matters national significance. This can create issues misalignment among threatened lists but generally there co-operation conservation agencies to reduce misalignments manage irrespective jurisdictional borders. Despite significant investment in programs designed assist recovery Australian biodiversity, plants particular appear be continuing decline. attributed factors including major threatening processes associated habitat loss invasive species, lack public awareness cultural socio-economic value plant conservation, our relatively poor understanding basic taxonomy biology, especially those have specific interactions pollinators, symbionts herbivores. A recent shift Federally-based has been identify 30 key through setting measurable targets, improving support provided teams encouraging industry, business philanthropy actions.

Язык: Английский

---

Genetic diversity and structure of an endangered medicinal herb: implications for conservation

AoB Plants, Год журнала: 2018, Номер 10(2)

Опубликована: Март 1, 2018

Human-driven habitat fragmentation leads to spatial isolation of endangered plant species increasing extinction risk. Understanding genetic variability and population structure rare isolated is great importance for assessing risk setting up conservation plans. Aconitum austrokoreense, an endemic in Korea, a perennial herb commonly used medicinal purposes. We five nuclear microsatellites one chloroplast marker investigate diversity 479 individuals A. austrokoreense from seven populations throughout South Korea. A multivariate approach, discriminant analysis principal components analysis, revealed broad-scale patterns across three major mountains that were composed genetically distinct subgroups. High pairwise FST values (mean = 0.35; highest 0.55) suggested significant differentiation among populations. Overall within variation was low. Based on Mantel test, there correlation between geographical distances indicating pattern by distance. Our results suggest may have undergone recent bottlenecks. Given the limited dispersal ability ongoing fragmentation, further be exacerbated leading increased

Язык: Английский

---