Temperature affects hatching success of cocoons in the invasive Asian earthwork Amynthas agrestis from the southern AppalachiansAuthor(s): James H. Blackmon IV; Melanie K. Taylor; Roberto Carrera-Martinez; Bruce A. Snyder; Mac A. Callaham Jr.
Source: Southeastern Naturalist
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
PDF: Download Publication (394.0 KB)
Invasive Asian earthworms are increasingly common in the eastern USA where they are a major cause of terrestrial ecosystem disturbance. Among these, Amynthas agrestis (Crazy Worm, Alabama Jumper, and other common names) has been shown to alter above and belowground food webs. Life-history traits of these earthworms are largely unknown, particularly in their invaded range. Here, we sought to answer questions about temperature effects on hatching success for cocoons of this species, using specimens collected from the southern Appalachian Mountains. We conducted 2 experiments investigating the effects of incubation temperature and the effect of varying the duration of cold temperature on hatching success. Of the temperatures tested, we found that cocoons hatched with greatest success at 10 °C, but our tests indicate a long duration at that temperature may be needed to result in an increase in hatching success. These results indicate that temperature and the duration of temperature exposure affect hatching success in this species. While our results contribute to the growing body of knowledge about the life-history traits of invasive Asian earthworms in the eastern US, more research is needed to provide a finer-resolution understanding of the optimum level and duration of temperatures for hatching success of A. agrestis.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationBlackmon IV, James H.; Taylor, Melanie K.; Carrera-Martinez, Roberto; Snyder, Bruce A.; Callaham Jr., Mac A. 2019. Temperature affects hatching success of cocoons in the invasive Asian earthwork Amynthas agrestis from the southern Appalachians. Southeastern Naturalist, 18(2): 270-280.
- Can the invasive earthworm, Amynthas agrestis, be controlled with prescribed fire?
- Occurrence of an exotic earthworm (Amynthas agrestis) in undisturbed soils of the southern Appalachian Mountains, USA
- Spatial variability of an invasive earthworm (Amynthas agrestis) population and potential impacts on soil characteristics and millipedes in the Great Smoky Mountains National Park, USA
XML: View XML