2016
DOI: 10.1093/conphys/cow002
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Haematological and immunological characteristics of eastern hellbenders (Cryptobranchus alleganiensis alleganiensis) infected and co-infected with endo- and ectoparasites

Abstract: Disease is among the leading causes of global amphibian population declines, and may contribute to declines of the giant hellbender salamander (Cryptobranchus alleganiensis). We provide some of the first information about how hellbenders physiologically respond to end- and ecto- parasites, insights that could be critical to their conservation.

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Cited by 19 publications
(33 citation statements)
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“…Our results are similar to studies of eastern hellbenders (Hopkins et al., ) and humans (O'Shaughnessy et al., ) indicating that bactericidal capacity is maintained and repeatable for several weeks when plasma is frozen at −80°C. Plasma bactericidal capacity degrades more quickly when frozen at −40°C (Liebl & Martin, ) and will degrade when frozen at −80°C for 7–13 months (DuRant, ).…”
Section: Discussionsupporting
confidence: 91%
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“…Our results are similar to studies of eastern hellbenders (Hopkins et al., ) and humans (O'Shaughnessy et al., ) indicating that bactericidal capacity is maintained and repeatable for several weeks when plasma is frozen at −80°C. Plasma bactericidal capacity degrades more quickly when frozen at −40°C (Liebl & Martin, ) and will degrade when frozen at −80°C for 7–13 months (DuRant, ).…”
Section: Discussionsupporting
confidence: 91%
“…When optimizing the assay for use in ectotherms, it is important to select a biologically relevant temperature for the bacteria‐killing phase of the assay and to potentially adjust the length of the bacteria‐killing step. For aquatic vertebrates, the average water temperature during the time of sampling can work well (Hopkins et al., ) as can previously published body temperature (this study). At relatively cooler bacteria‐killing temperatures, an hour long incubation period may be used rather than the more typical 30‐min period (Hopkins et al., ).…”
Section: Introductionsupporting
confidence: 80%
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“…Indeed, the percentage lymphocyte in the blood is lowest during the spring, which is the peak of the mating season. Infection is associated with lymphopenia in other vertebrates, including salamanders (Davis et al, 2008;Hopkins et al, 2016), suggesting that decreased blood lymphocytes are important for combatting immune challenges.…”
Section: No Relationship Of Hpa/i Activity With Reproductive Investmentmentioning
confidence: 99%