Conservation prioritisation of genomic diversity to inform management of a declining mammal species

Biological Conservation, Год журнала: 2024, Номер 291, С. 110467 - 110467

Опубликована: Фев. 6, 2024

In our present age of extinction, conservation managers must use limited resources efficiently to conserve species and the genetic diversity within them. To intraspecific variation, we understand geographic distribution variation plan management actions that will cost-effectively maximise its retention. Here, a genome-wide single-nucleotide polymorphism (SNP) dataset consisting 12,962 loci 384 individuals inform Endangered northern quoll (Dasyurus hallucatus), carnivorous marsupial distributed patchily across Australia. Many populations have declined or are currently declining, driven by range-expanding cane toad (Rhinella marina). We (1) confirm population genomic structure, (2) investigate contribution each overall diversity, (3) conduct prioritisation analyses at several spatial hierarchical scales using popular planning algorithms, (4) patterns inbreeding. find single population, even populations, not prevent loss substantial amounts adaptive capacity. Rather, least eight from is necessary retain 90 % SNP alleles. also show more geographically isolated such as those on islands, very small contributions relatively high levels inbreeding compared mainland populations. Our study highlights importance conserving multiple genetically distinct effectively in undergoing widespread declines, demonstrates criteria prioritise management.

Язык: Английский

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Regional conservation genomics: insights and opportunities from northern Australia

Biodiversity and Conservation, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Язык: Английский

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Conservation genetics of Mahogany Gliders and their complex evolutionary relationship with Squirrel Gliders

Conservation Genetics, Год журнала: 2025, Номер unknown

Опубликована: Апрель 30, 2025

Язык: Английский

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Revised phylogeography of the common brushtail possum (Trichosurus vulpecula) reveals new insights into genetic structure across Australia

Zoological Journal of the Linnean Society, Год журнала: 2025, Номер 204(1)

Опубликована: Май 1, 2025

Abstract Understanding genetic relationships within species is essential for identifying distinct lineages and informing conservation strategies, particularly with fragmented or widespread geographic distributions. One such that has suffered declines across Australia, despite remaining common in some areas, the brushtail possum (Trichosurus vulpecula), a nocturnal arboreal marsupial. Previous studies on possums had limited sampling, which precluded comprehensive assessment of genus. Using both single nucleotide polymorphism markers mitochondrial cytochrome b gene, this study employed phylogenetics, ancestry coefficients, tested differentiation, to examine population structure Australia. Our results indicate current subspecies’ classifications T. vulpecula do not align structure, as Western Australian Pilbara Midwest populations, currently defined subspecies Trichosurus hypoleucus, are instead genetically similar south-eastern central v. vulpecula. These findings have important implications including translocations possums, highlight importance sampling wide-ranging species.

Язык: Английский

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Partnering and engaging with Traditional Owners in conservation translocations

Wildlife Research, Год журнала: 2024, Номер 51(10)

Опубликована: Сен. 24, 2024

Context Conservation translocations are increasing in number and so too is the interest expectation from Traditional Owners (TOs) that they will be involved management occurring on their Country. Aims Our objectives were to identify levels of past TO engagement as experienced through western lenses, examine key steps, challenges opportunities emerged survey responses, also provide a case study conservation translocation describes Indigenous involvement support reintroduction golden bandicoots (Isoodon auratus) Australia Martu Country (Western Australia) Wongkumara Maljangapa (New South Wales). Methods The questions surveys sought address practitioners follows: (1) what types observed; (2) if TOs not translocation, was there reason; (3) for each project where involved, (a) why this by agency; (b) worked well terms partnerships; (c) how could these partnerships improved? From lens, perspectives with addressing following questions: you translocation; it important your community; ow would like future? Key results Of 208 Australian translocations, 27% TOs. four themes responses: need recognise adopt cultural dimension Country, maintain on-Country relationships between TOs, enable co-ownership projects, community links practitioners. bandicoot partnership provided foundation across generations, setting scene long-term future collaboration opportunities. Conclusions all participants highlighted common theme: engaged fairly, culturally safe during engagement, them part wider team. sequential approach engaging organisation supporting work alongside capture, record transport animals new (reintroduction) site. Implications We suggestions non-Indigenous managers consider when

Язык: Английский

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Haplotype-resolved genome and population genomics of the threatened garden dormouse in Europe

Genome Research, Год журнала: 2024, Номер 34(11), С. 2094 - 2107

Опубликована: Ноя. 1, 2024

Genomic resources are important for evaluating genetic diversity and supporting conservation efforts. The garden dormouse ( Eliomys quercinus ) is a small rodent that has experienced one of the most severe modern population declines in Europe. We present high-quality haplotype-resolved reference genome dormouse, combine comprehensive short long-read transcriptomics data sets with homology-based methods to generate highly complete gene annotation. Demographic history analysis reveal sharp decline since last interglacial, indicating an association between colder climates before anthropogenic influence. Using our from 100 individuals, largely sampled citizen-science project across contemporary range, we conduct first genomic this species. find clear evidence structure species’ core Central European range. Notably, show Alpine population, characterized by strong differentiation reduced diversity, reproductively isolated other regions likely represents differentiated evolutionary significant unit (ESU). predominantly declining Eastern populations also signs recent isolation, pattern consistent range expansion Western Europe during Holocene, leaving relict now facing local extinction. Overall, findings suggest may be enhanced through designation ESUs.

Язык: Английский

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Evidence for a Natural Population of Tiger Snakes (Notechis Scutatus) on Carnac Island

Journal of the Royal Society of Western Australia, Год журнала: 2024, Номер 107

Опубликована: Дек. 12, 2024

The tiger snake ( Notechis scutatus ) population on Carnac Island has been well-studied by ecologists, but the origin of this is still subject debate. Many published studies make reference to being artificially established a showman in early 20th century. Here, we provide an alternative perspective, backed up with new genetic evidence, and propose that more likely remnant from natural isolation island may have supplemented any such translocation event.

Язык: Английский

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Introduction to the special issue: Leveraging genetics in spatial conservation prioritization

Biological Conservation, Год журнала: 2024, Номер 302, С. 110927 - 110927

Опубликована: Дек. 19, 2024

Язык: Английский

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