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  1. Article: A paired analysis of mercury among non-invasive tissues to inform bat conservation monitoring.

    Simonis, Molly C / Whitmore, Kimberlee / Dyer, Kristin E / Allira, Meagan / Demory, Bret / Chumchal, Matthew M / Becker, Daniel J

    bioRxiv : the preprint server for biology

    2024  

    Abstract: Contaminant exposure can harm wildlife. However, measuring contaminant exposure in wildlife can be challenging due to accessibility of species and/or sampling tissue matrices needed to answer research questions regarding exposure. For example, in bats ... ...

    Abstract Contaminant exposure can harm wildlife. However, measuring contaminant exposure in wildlife can be challenging due to accessibility of species and/or sampling tissue matrices needed to answer research questions regarding exposure. For example, in bats and other taxa that roost, it may be best to collect pooled feces from colonies for minimal disturbance to species of conservation concern, but fecal contaminant concentrations do not provide contaminant bioaccumulation estimates. Thus, there is a need for quantifying relationships between sample matrices for measuring contaminant exposure to answer research questions pertaining to wildlife health and addressing conservation needs. Our goal was to determine relationships between fecal and fur total mercury (THg). To do so, we collected paired feces and fur from Mexican free-tailed bats (
    Language English
    Publishing date 2024-04-01
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.03.31.587502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Long‐term exposure to an invasive fungal pathogen decreases Eptesicus fuscus body mass with increasing latitude

    Simonis, Molly C. / Hartzler, Lynn K. / Turner, Gregory G. / Scafini, Michael R. / Johnson, Joseph S. / Rúa, Megan A.

    Ecosphere. 2023 Feb., v. 14, no. 2 p.e4426-

    2023  

    Abstract: Invasive pathogens threaten wildlife health and biodiversity. Physiological responses of species highly susceptible to pathogen infections following invasion are well described. However, the responses of less susceptible species (relative to highly ... ...

    Abstract Invasive pathogens threaten wildlife health and biodiversity. Physiological responses of species highly susceptible to pathogen infections following invasion are well described. However, the responses of less susceptible species (relative to highly susceptible species) are not well known. Latitudinal gradients, which can influence body condition via Bergmann's rule and/or reflect the time it takes for an introduced pathogen to spread geographically, add an additional layer for how mammalian species respond to pathogen exposure. Our goal was to understand how hosts less susceptible to pathogen infections respond to long‐term pathogen exposure across a broad latitudinal gradient. We examined changes in body mass throughout pathogen exposure time across the eastern United States (latitude ranging 30.5° N–44.8° N) in Eptesicus fuscus, a bat species classified as less susceptible to infection (relative to highly susceptible species) by the invasive fungal pathogen that causes white‐nose syndrome, Pseudogymnoascus destructans (Pd). Using 30 years of spring through fall adult capture records, we created linear mixed‐effects models for female and male bats to determine how mass or mass variation changed across the eastern United States from pre‐Pd invasion years through Pd invasion (0–1 years with Pd), epidemic (2–4 years with Pd), and established years (5+ years with Pd). By Pd establishment, all female and male bats decreased body mass with increasing latitude across a spatial threshold at 39.6° N. Differences in bat mass north and south of the spatial threshold progressively increased over Pd exposure time‐steps such that body mass was lower in northern latitudes compared to southern latitudes by Pd establishment. Results indicated that the progressive differences in E. fuscus body mass with latitude across the eastern United States are due to long‐term pathogen exposure; however, other environmental and ecological pressures may contribute to decreases in E. fuscus body mass with latitude and long‐term pathogen exposure. As pathogen introductions and emerging infectious diseases become more prevalent on the landscape, it is imperative that we understand how less susceptible species directly and indirectly respond to long‐term pathogen exposure in order to maintain population health in surviving species.
    Keywords Eptesicus fuscus ; Pseudogymnoascus destructans ; adults ; biodiversity ; body condition ; body weight ; chronic exposure ; disease susceptibility ; females ; fungi ; landscapes ; latitude ; males ; mammals ; pathogens ; spring ; white-nose syndrome ; wildlife
    Language English
    Dates of publication 2023-02
    Publishing place John Wiley & Sons, Inc.
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 2572257-8
    ISSN 2150-8925
    ISSN 2150-8925
    DOI 10.1002/ecs2.4426
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Expanded diversity of novel hemoplasmas in rare and undersampled Neotropical bats.

    Volokhov, Dmitriy V / Lock, Lauren R / Dyer, Kristin E / DeAnglis, Isabella K / Andrews, Benjamin R / Simonis, Molly C / Stockmaier, Sebastian / Carter, Gerald G / Downs, Cynthia J / Fenton, M Brock / Simmons, Nancy B / Becker, Daniel J

    One health (Amsterdam, Netherlands)

    2023  Volume 17, Page(s) 100633

    Abstract: Hemotropic mycoplasmas are emerging as a model system for studying bacterial pathogens in bats, but taxonomic coverage of sampled host species remains biased. We leveraged a long-term field study in Belize to uncover novel hemoplasma diversity in bats by ...

    Abstract Hemotropic mycoplasmas are emerging as a model system for studying bacterial pathogens in bats, but taxonomic coverage of sampled host species remains biased. We leveraged a long-term field study in Belize to uncover novel hemoplasma diversity in bats by analyzing 80 samples from 19 species, most of which are infrequently encountered. PCR targeting the partial 16S rRNA gene found 41% of bats positive for hemoplasmas. Phylogenetic analyses found two novel host shifts of hemoplasmas, four entirely new hemoplasma genotypes, and the first hemoplasma detections in four bat species. One of these novel hemoplasmas (from
    Language English
    Publishing date 2023-09-21
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2834831-X
    ISSN 2352-7714
    ISSN 2352-7714
    DOI 10.1016/j.onehlt.2023.100633
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Long-term spring through fall capture data of

    Simonis, Molly C / Hartzler, Lynn K / Campbell, Joshua / Carter, Timothy C / Cooper, Lisa Noelle / Cross, Katelin / Etchison, Katherine / Hemberger, Traci / King, R Andrew / Reynolds, Richard J / Samar, Yasmeen / Scafini, Michael R / Stankavich, Sarah / Turner, Gregory G / Rúa, Megan A

    Data in brief

    2023  Volume 49, Page(s) 109353

    Abstract: Emerging infectious diseases threaten wildlife populations. Without well monitored wildlife systems, it is challenging to determine accurate population and ecosystem losses following disease emergence. North American temperate bats present a unique ... ...

    Abstract Emerging infectious diseases threaten wildlife populations. Without well monitored wildlife systems, it is challenging to determine accurate population and ecosystem losses following disease emergence. North American temperate bats present a unique opportunity for studying the broad impacts of wildlife disease emergence, as their federal monitoring programs were prioritized in the USA throughout the 20
    Language English
    Publishing date 2023-06-28
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2786545-9
    ISSN 2352-3409 ; 2352-3409
    ISSN (online) 2352-3409
    ISSN 2352-3409
    DOI 10.1016/j.dib.2023.109353
    Database MEDical Literature Analysis and Retrieval System OnLINE

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