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33 results for “black rat”

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zenodo40/100

Impacts of black rat invasion on the primary rodent host of Lassa virus, Mastomys natalensis

Shared here is code and data supporting the manuscript, "Reservoir displacement by an invasive rodent reduces Lassa virus zoonotic spillover risk." The project directory, which contains numerous large raster data files, was stored as a split zip archive to facilitate upload to Zenodo and consists of the files "rat_invasion.z01", "rat_invasion.z02", "rat_invasion.z03", and "rat_invasion.zip". Following download, these files may need to be decompressed using dedicated archiver software (such as The Unarchiver [https://theunarchiver.com/] on macOS). Note that the entire project repository is ~7 GB when uncompressed. The files shared here mirror the GitHub project repository (https://github.com/eveskew/rat_invasion) with the addition of the large environmental raster data in the "data/environmental" subdirectory.

opencc-by-4.0Apr 2024View details →

dryad40/100

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

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

opencc-zeroJan 2023View details →

dryad40/100

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

Open the record for dataset details and reuse information.

publicJan 2023View details →

zenodo36/100

Detection of black rat inhabitation using environmental DNA

The all raw data of this study including expeirment 1, 2 and primer specificitiy as well as LOD.   Pest management is essential for safeguarding agricultural productivity, public health, and ecological balance, especially as the global demand for sustainable pest control strategies rises with population growth. Among emerging technologies, environmental DNA (eDNA) analysis has gained prominence as a powerful tool, enabling the detection of pest species by isolating their genetic material from environmental samples. This study explores the innovative application of eDNA analysis in black rat (<a name="_Hlk184139956"></a>Rattus rattus) management, utilizing wipe sampling to recover eDNA from the air. Key experiments were found to determine the minimum surface area (~5 inch area) required for effective eDNA collection and to analyze the temporal persistence of black rat eDNA over two months. Our findings demonstrate the potential of eDNA techniques to transform pest management strategies, offering a highly efficient, cost-effective, and environmentally sustainable approach to monitoring and controlling black rat populations. This work represents a significant advancement in integrating molecular tools into pest control practices.

opencc-by-4.0Dec 2024View details →

dryad32/100

Data from: Invasion genetics of a human commensal rodent: the black rat Rattus rattus in Madagascar

Studies focusing on geographical genetic patterns of commensal species and on human history complement each other, and provide proxies to trace common colonisation events. On Madagascar, the unintentional introduction and spread of the commensal species Rattus rattus by people may have left a living clue of human colonization patterns and history. In this study, we addressed this question by characterising the genetic structure of natural populations of R. rattus using both microsatellites and mitochondrial sequences, on an extensive sampling across the island. Such datasets were analysed by a combination of methods using population genetics, phylogeography and Approximate Bayesian Computation. Our results indicated two different introduction events to Madagascar from the same ancestral source of R. rattus, one in the extreme north of the island and the other further south. The latter was the source of a large spatial expansion, which may have initially started from an original point located on the southern coast. The inferred timing of introduction events – several centuries ago - is temporally congruent with the Arabian trade network in the Indian Ocean, which was flourishing from the middle of the first millennium.

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Dataset results

Impacts of black rat invasion on the primary rodent host of Lassa virus, Mastomys natalensis

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

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

Detection of black rat inhabitation using environmental DNA

Data from: Invasion genetics of a human commensal rodent: the black rat Rattus rattus in Madagascar

In-vivo, high-resolution black-blood MRI in healthy rats at 7T

Figure 1 in Predation of the black-eared opossum (Didelphis aurita) on the great kiskadee (Pitangus sulphuratus) and the water rat (Nectomys squamipes)

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Allen Brain Atlas

Annotated Behaviour and Observability Dataset (ABODe)

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International Brain Laboratory public data

OpenNeuro