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Purdue University Help the Hellbender Brochures, Lesson Plans, Videos & Games
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The Hellbender is a giant, aquatic salamander that has experienced severe population declines throughout its range. It is a sensitive species and there are a number of factors contributing to its declines. To help address the varied threats facing the Hellbender, Help the Hellbender has produced several new products focused on educating both stakeholders and the general public on ways that they can help protect hellbenders.
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Online Training Resources
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Training Resources
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Bog Turtle Natural History Profile
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Learn more about Bog Turtle (Glyptemys muhlenbergii) habitat, behavior and distribution.
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Species Profile
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Natural History
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The Last Dragons - Protecting Appalachia's Hellbenders - 10 minute film
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An intimate glimpse at North America's Eastern Hellbender, an ancient salamander that lives as much in myth as in reality.... and in many waters, myths are all that remain of these sentinel stream-dwellers.
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Information Materials
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Multimedia
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American Black Duck Image
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Black-Duck-site-images
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Feedback
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How to suggest a change or addition and share your thoughts on using the tool.
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Resources
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Instructions for Citing the Literature Gateway
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If this tool helps you find relevant literature for a publication, please reference it in the methods section of your manuscript.
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Resources
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Technical Documentation for the Literature Gateway
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Documentation to help you navigate the Literature Gateway Tool
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Resources
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Purdue Agriculture Help the Hellbender
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Everyone can do something to Help the Hellbender. On this website, you will find information about the hellbender, as well as household and farm management practices that can help keep our rivers and streams clean. People who fish and kayak can also learn what they should do if they see a hellbender in the wild.
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Online Training Resources
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Training Resources
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Looking to increase waterfowl, wildlife habitat? (Keeping the Farm)
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Short article in The Delmarva Farmer about the Working Lands for Wildlife Program's work on American Black Duck in Delaware
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Information Materials
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Published materials
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Movement and habitat use of Eastern hellbenders (Cryptobranchus alleganiensis alleganiensis) following population augmentation
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With amphibian declines at crisis levels, translocations, including population augmentations, are commonly used for amphibian conservation. Eastern Hellbenders (Cryptobranchus alleganiensis alleganiensis) have declined to low densities in many areas of their range, making them ideal candidates for population augmentation. Both wild adults and captive-reared juveniles have been used for augmentations, but their suitability has never been directly compared. Herein, we use radio telemetry with Eastern Hellbenders to examine patterns of site fidelity, movement, and habitat use over a 2-yr period for adult residents, wild adult translocates, and captive-reared juvenile translocates. We used generalized linear models and generalized linear mixed models to identify temporal trends and explore the effects of residential status (resident vs. translocate) and origin/age (captive-reared juveniles vs. wild adults) on various ecological and behavioral traits relating to habitat. Site fidelity was high in adult residents and wild adult translocates, but lower in captive-reared juvenile translocates. Both adult and juvenile translocates had greater mean movement distances than residents, leading to larger home range sizes, but these differences decreased over time. Wild adult translocates had a higher probability of using artificial nest rocks than adult residents or captive-reared juvenile translocates. This pattern was most prevalent early in the study, indicating these shelters are particularly useful during the transition to release sites. Captive-reared juvenile translocates had lower site fidelity and utilized suboptimal habitat (smaller and fewer shelter rocks) compared to wild adults. Compared to previous studies, translocations had fewer negative effects on site residents or wild translocates and might be effective at promoting growth of Hellbender populations. However, translocations of captive-reared juveniles were less successful. As we are uncertain whether captive-rearing or ontogeny led to these differences, both longer head-starting times and conditioning should be explored to improve outcomes in captive-reared juvenile cohorts.
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Research
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Artificial Nest Box Research
