Invasive bullfrog larvae lack developmental plasticity to changing hydroperiod Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/1r66j158c

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. The published article is copyrighted by Wiley-Blackwell and can be found at:  http://onlinelibrary.wiley.com/.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Determining the mechanisms responsible for the success of invasive species is critical for developing effective management strategies. Artificially draining managed wetlands to maintain natural ephemeral conditions is a common practice in the Pacific Northwest and is assumed to kill invasive American bullfrog (Lithobates catesbeianus) larvae, which typically overwinter in permanent wetlands before metamorphosis. Bullfrogs in the Willamette Valley, Oregon, however, have invaded ephemeral wetland sites with confirmed metamorphosis within 4 months after hatching at 1 site. We hypothesized that plasticity in growth and development rates in response to hydroperiod facilitated bullfrog invasion in Oregon. We tested this hypothesis by quantifying larval bullfrog development and growth in response to 3 hydroperiod conditions in a mesocosm setting. We tested clutches collected from both ephemeral (n = 3) and permanent (n = 3) wetlands. We found no differences in development or growth due to hydroperiod treatments (body length, P = 0.48; mass, P = 0.27), but we found differences in growth among clutches (P ≤ 0.001). These differences likely represent natural variation in growth rates because clutches collected from the same wetland type did not respond with similar growth and geographic barriers between collection sites did not account for the differences. These results indicate a lack of plasticity to hydroperiod and suggest that artificial hydroperiod manipulation in the Pacific Northwest will not induce rapid metamorphosis by invasive bullfrog larvae, although some genotypes may be capable of rapid growth and metamorphosis. 2013 The Wildlife Society.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Cook, M., Heppell, S., & Garcia, T. (2013). Invasive bullfrog larvae lack developmental plasticity to changing hydroperiod. Journal of Wildlife Management, 77(4), 655-662. doi:10.1002/jwmg.509
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-06-04T17:23:37Z (GMT) No. of bitstreams: 1 CookMeganTFisheriesWildlifeInvasiveBullfrogLarvae.pdf: 354991 bytes, checksum: 1e37e4ee18ccab72f411419f3d192eba (MD5)
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-06-04T16:22:11Z No. of bitstreams: 1 CookMeganTFisheriesWildlifeInvasiveBullfrogLarvae.pdf: 354991 bytes, checksum: 1e37e4ee18ccab72f411419f3d192eba (MD5)
  • description.provenance : Made available in DSpace on 2013-06-04T17:23:37Z (GMT). No. of bitstreams: 1 CookMeganTFisheriesWildlifeInvasiveBullfrogLarvae.pdf: 354991 bytes, checksum: 1e37e4ee18ccab72f411419f3d192eba (MD5) Previous issue date: 2013-01-15

Relationships

In Administrative Set:
Last modified: 07/06/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items