Host Genus and Habitat Use Shape the Distribution of Batrachochytrium dendrobatidis Lineages in a Hyper‐Diverse Tropical Amphibian Community.
Saved in:
| Title: | Host Genus and Habitat Use Shape the Distribution of Batrachochytrium dendrobatidis Lineages in a Hyper‐Diverse Tropical Amphibian Community. |
|---|---|
| Authors: | Buttimer, Shannon1,2 (AUTHOR) shannon.buttimer@gmail.com, Neely, Wesley J.3 (AUTHOR), Boyette, Jack M.1,2 (AUTHOR), Lambertini, Carolina1,2 (AUTHOR), Martins, Renato4 (AUTHOR), Paniagua Torres, Karen A.1,2 (AUTHOR), Rodriguez, David3 (AUTHOR), Becker, C. Guilherme1,2 (AUTHOR) guibecker@psu.edu |
| Source: | Ecology & Evolution (20457758). Mar2026, Vol. 16 Issue 3, p1-15. 15p. |
| Subject Terms: | *Rain forests, *Habitat conservation, *Amphibian populations, *Pathogenic microorganisms, Batrachochytrium dendrobatidis, Host-parasite relationships |
| Geographic Terms: | Brazil |
| Abstract: | Pathogens often exploit ecological and evolutionary opportunities created by anthropogenic change, with profound consequences for host communities. In Brazil's Atlantic Forest, the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) exemplifies this dynamic, with two co‐occurring lineages: the enzootic Bd‐Brazil lineage and the invasive Global Panzootic Lineage (Bd‐GPL), implicated in historical amphibian declines and Bd hybridization events. To investigate how host taxonomy and habitat use influence Bd lineage distribution, we sampled 3836 amphibians representing 42 species across paired aquatic and terrestrial transects over a two‐year period. We successfully genotyped n = 252 out of 777 Bd‐positive samples using nuclear and mitochondrial SNP assays to differentiate between Bd‐GPL, Bd‐Brazil, hybrids, and coinfections. Our results reveal that Bd lineage distribution is nonrandomly associated with host genus and habitat type. Stream‐dwelling frogs, particularly those in the genus Hylodes, had higher rates of coinfection with Bd‐GPL and Bd‐Brazil than most other genera. This pattern may reflect their lifelong association with streams, which might increase their exposure to zoospores from multiple Bd lineages. In contrast, terrestrial transects were dominated by single‐lineage Bd‐GPL infections, even when accounting for differences in amphibian species composition and host genus among transect types. These findings suggest that aquatic habitats could serve as refugia for Bd‐Brazil, while Bd‐GPL may exhibit more desiccation tolerance. Methodological limitations of this study, including biases towards successfully genotyping high‐load infections and limited genomic resolution, underscore the need for more high‐resolution sequencing approaches to fully understand pathogen dynamics in the Atlantic Forest. [ABSTRACT FROM AUTHOR] |
| Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: 8gh DbLabel: GreenFILE An: 192557267 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Host Genus and Habitat Use Shape the Distribution of Batrachochytrium dendrobatidis Lineages in a Hyper‐Diverse Tropical Amphibian Community. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Buttimer%2C+Shannon%22">Buttimer, Shannon</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> shannon.buttimer@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Neely%2C+Wesley+J%2E%22">Neely, Wesley J.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boyette%2C+Jack+M%2E%22">Boyette, Jack M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lambertini%2C+Carolina%22">Lambertini, Carolina</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martins%2C+Renato%22">Martins, Renato</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Paniagua+Torres%2C+Karen+A%2E%22">Paniagua Torres, Karen A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rodriguez%2C+David%22">Rodriguez, David</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Becker%2C+C%2E+Guilherme%22">Becker, C. Guilherme</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> guibecker@psu.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Mar2026, Vol. 16 Issue 3, p1-15. 15p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Rain+forests%22">Rain forests</searchLink><br />*<searchLink fieldCode="DE" term="%22Habitat+conservation%22">Habitat conservation</searchLink><br />*<searchLink fieldCode="DE" term="%22Amphibian+populations%22">Amphibian populations</searchLink><br />*<searchLink fieldCode="DE" term="%22Pathogenic+microorganisms%22">Pathogenic microorganisms</searchLink><br /><searchLink fieldCode="DE" term="%22Batrachochytrium+dendrobatidis%22">Batrachochytrium dendrobatidis</searchLink><br /><searchLink fieldCode="DE" term="%22Host-parasite+relationships%22">Host-parasite relationships</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Brazil%22">Brazil</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Pathogens often exploit ecological and evolutionary opportunities created by anthropogenic change, with profound consequences for host communities. In Brazil's Atlantic Forest, the amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd) exemplifies this dynamic, with two co‐occurring lineages: the enzootic Bd‐Brazil lineage and the invasive Global Panzootic Lineage (Bd‐GPL), implicated in historical amphibian declines and Bd hybridization events. To investigate how host taxonomy and habitat use influence Bd lineage distribution, we sampled 3836 amphibians representing 42 species across paired aquatic and terrestrial transects over a two‐year period. We successfully genotyped n = 252 out of 777 Bd‐positive samples using nuclear and mitochondrial SNP assays to differentiate between Bd‐GPL, Bd‐Brazil, hybrids, and coinfections. Our results reveal that Bd lineage distribution is nonrandomly associated with host genus and habitat type. Stream‐dwelling frogs, particularly those in the genus Hylodes, had higher rates of coinfection with Bd‐GPL and Bd‐Brazil than most other genera. This pattern may reflect their lifelong association with streams, which might increase their exposure to zoospores from multiple Bd lineages. In contrast, terrestrial transects were dominated by single‐lineage Bd‐GPL infections, even when accounting for differences in amphibian species composition and host genus among transect types. These findings suggest that aquatic habitats could serve as refugia for Bd‐Brazil, while Bd‐GPL may exhibit more desiccation tolerance. Methodological limitations of this study, including biases towards successfully genotyping high‐load infections and limited genomic resolution, underscore the need for more high‐resolution sequencing approaches to fully understand pathogen dynamics in the Atlantic Forest. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=192557267 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/ece3.73250 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1 Subjects: – SubjectFull: Rain forests Type: general – SubjectFull: Habitat conservation Type: general – SubjectFull: Amphibian populations Type: general – SubjectFull: Pathogenic microorganisms Type: general – SubjectFull: Batrachochytrium dendrobatidis Type: general – SubjectFull: Host-parasite relationships Type: general – SubjectFull: Brazil Type: general Titles: – TitleFull: Host Genus and Habitat Use Shape the Distribution of Batrachochytrium dendrobatidis Lineages in a Hyper‐Diverse Tropical Amphibian Community. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Buttimer, Shannon – PersonEntity: Name: NameFull: Neely, Wesley J. – PersonEntity: Name: NameFull: Boyette, Jack M. – PersonEntity: Name: NameFull: Lambertini, Carolina – PersonEntity: Name: NameFull: Martins, Renato – PersonEntity: Name: NameFull: Paniagua Torres, Karen A. – PersonEntity: Name: NameFull: Rodriguez, David – PersonEntity: Name: NameFull: Becker, C. Guilherme IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20457758 Numbering: – Type: volume Value: 16 – Type: issue Value: 3 Titles: – TitleFull: Ecology & Evolution (20457758) Type: main |
| ResultId | 1 |
