Skip to Main Content
Prescribed fire and timber harvest effects on terrestrial salamander abundance, detectability, and microhabitat useAuthor(s): Katherine M. O'Donnell; Frank R. Thompson; Raymond D. Semlitsch
Source: The Journal of Wildlife Management. 79(5): 766-775.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (822.46 KB)
DescriptionPrescribed fire and timber harvest are anthropogenic disturbances that modify resource availability and ecosystem structure, and can affect wildlife both directly and indirectly. Terrestrial salamanders are effective indicators of forest health due to their high abundance and sensitivity to microclimatic conditions. Given their ecological importance, it is critical to understand how forest salamanders respond to management-related disturbances. We predicted that timber harvest and prescribed fire would decrease salamander abundance and availability, and increase salamander cover object use. We surveyed for southern red-backed salamanders (Plethodon serratus) over 9 sampling periods from 2010 to 2014 in a Missouri Ozark (USA) forest, and used binomial mixture models to estimate abundance and detectability in a large-scale Before-After, Control-Impact (BACI) experiment. Five replicate 5-ha units were randomly assigned to each treatment (prescribed burn, shelterwood harvest, midstory herbicide) and control. We compared abundance, surface activity, detectability, and microhabitat use among treatments. Abundance and surface activity decreased post-treatment in shelterwood, midstory, and burn units. Abundance estimates in midstory and burn units rebounded in the second post-treatment year but declined further in shelterwood harvest units. Overall, treatments had stronger effects on salamander availability than on actual abundance. We also found a higher proportion of salamanders under cover objects after prescribed fire, further illustrating the importance of accounting for imperfect detectability. Our findings foster a more robust understanding of the mechanisms underlying population-level responses to management practices, ultimately increasing our ability to manage terrestrial salamanders effectively.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
CitationO'Donnell, Katherine M.; Thompson, Frank R., III; Semlitsch, Raymond D. 2015. Prescribed fire and timber harvest effects on terrestrial salamander abundance, detectability, and microhabitat use. The Journal of Wildlife Management. 79(5): 766-775.
Keywordsamphibian, forest management, hierarchical model, Missouri, N-mixture model, oak regeneration, Ozarks, partial harvest, Plethodon serratus, shelterwood.
- Reptile and amphibian response to oak regeneration treatments in productive southern Appalachian hardwood forest
- Woodland salamander responses to a shelterwood harvest-prescribed burn silvicultural treatment within Appalachian mixed-oak forests
- Short-Term Response of Jordan's Salamander to a Shelterwood Timber Harvest in Western North Carolina
XML: View XML