New DNA barcodes for wildlife helminths now available (HelmBank Release R1)The first public release of data from the HelmBank project is now live with Release R1. This release provides a new set of voucher-linked parasite DNA barcode records designed to improve how helminths are detected and identified from wildlife. This release adds 45 barcodes from 20 newly sequenced specimens with data for the markers COI, 16S, and ITS. Release R1 is part of a larger, growing, and actively curated collection of parasite specimens from wildlife. It currently focuses on the helminth parasites of Neotropical mammals, but coverage is quickly expanding to include a broader array of host taxa. Quick linksWhy this mattersParasites are a major—often overlooked—component of biodiversity, and they are central to wildlife health, conservation decision-making, and disease surveillance strategies (e.g., One Health). Yet accurate molecular identification depends on reference sequences that are expert-verified and relevant to local hosts and regions—resources that remain sparse for wildlife systems in the tropical Americas. HelmBank’s goal is to translate parasite specimens collected from wildlife into high-quality reference data: DNA barcodes tied to morphological identifications, host species, and collection metadata, so that researchers and practitioners can more reliably:
The bigger picture: what’s currently under productionRelease R1 is the first public slice of a larger curated collection. The current sample dataset includes 105 parasite specimens linked to host records spanning at least seven mammal orders—a cross-section of Neotropical wildlife that is frequently the target of conservation and wildlife health programs but yet badly under sampled for parasite diversity. Host breadth The working collection includes helminths from diverse mammal hosts, including:
Host breadth is intentional: it makes the resulting reference sequences more likely to improve parasite detection and identification in real-world monitoring programs—where wildlife samples come from a mix of species, landscapes, and levels of contact with people and livestock. Parasite breadth Across these hosts, the working collection currently spans three major helminth phyla:
HelmBank is being built with traceability and verification as first principles: Expert morphological identifications are captured alongside molecular data whenever possible. Ongoing curation includes taxonomic updates and corrections, including review against external resources. The current release of HelmBank includes data from at least one new—previously undescribed—lineage of parasites that we will formally describe and update soon. What’s included in HelmBank Release R1Release R1 of HelmBank includes a priority set of initial "field-to-sequence" data that we can publish now, even while the broader collection continues through verification and sequencing. These data originate from 20 helminth specimens and include 45 new barcodes from COI (N = 11), 16S (N = 19), and ITS1 (N = 15). Release R1 includes an initial subset of sequenced specimens linked to hosts that span multiple mammalian lineages of the Neotropics.
Currently identified parasitic helminths associated with these hosts span two phyla: Nematoda and Platyhelminths:
Several specimens in the release are resolved to species level, examples including:
Not every record is species-level, reflecting real-world constraints on the painstaking work of identifying parasites by microscope when they vary in specimen condition, life stage, and taxonomic group. Future releases will increase resolution over time as identifications are refined and the reference library expands. How to use this release (and who it’s for)Wildlife biology & conservation: improve detection and interpretation of helminths as part of biodiversity monitoring and host health assessments. Parasite diversity research: compare host-associated parasite communities and flag potential new lineages and host records. One Health & veterinary applications: support parasite surveillance where wildlife, domestic animals, and humans interact. Molecular ecology & bioinformatics: use HelmBank as a reference resource for read assignment, benchmarking, and reproducible pipelines. If you'd like to use the data, please cite DOI dx.doi.org/10.5883/DS-HELMBR1 Guidance on peer-reviewed citation (*coming soon*) What's nextFuture releases of HelmBank will expand both host and parasite coverage beyond R1, including additional helminth groups already present in the working collection (e.g., acanthocephalans and trematodes) and new host taxa (e.g., wildcats, canids, peccaries, and anteaters) as sequences and metadata packages. To stay updated: Partners, contributions, and collaborationsHelmBank exists because veterinarians, field biologists, parasitologists, and molecular ecologists are working together to connect specimens to sequence to metadata. If you are interested in collaborating—especially around under-sampled host taxa, new regions, or integration with monitoring programs--please reach out.
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