Skip to Main Content
Naturally occurring variation in tadpole morphology and performance linked to predator regimeAuthor(s): James B. Johnson; Daniel Saenz; Cory K. Adams; Toby J. Hibbitts
Source: Ecology and Evolution. 5(15): 2991-3002.
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
Download Publication (0 B)
DescriptionDivergent natural selection drives a considerable amount of the phenotypic and genetic variation observed in natural populations. For example, variation in the predator community can generate conflicting selection on behavioral, life-history, morphological, and performance traits. Differences in predator regime can subsequently increase phenotypic and genetic variations in the population and result in the evolution of reproductive barriers (ecological speciation) or phenotypic plasticity. We evaluated morphology and swimming performance in field collected Bronze Frog larvae (Lithobates clamitans) in ponds dominated by predatory fish and those dominated by invertebrate predators. Based on previous experimental findings, we hypothesized that tadpoles from fish-dominated ponds would have small bodies, long tails, and large tail muscles and that these features would facilitate fast-start speed. We also expected to see increased tail fin depth (i.e., the tail-lure morphology) in tadpoles from invertebrate-dominated ponds. Our results support our expectations with respect to morphology in affecting swimming performance of tadpoles in fish-dominated ponds. Furthermore, it is likely that divergent natural selection is playing a role in the diversification on morphology and locomotor performance in this system.
- 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.
CitationJohnson, James B.; Saenz, Daniel; Adams, Cory K.; Hibbitts, Toby J. 2015. Naturally occurring variation in tadpole morphology and performance linked to predator regime. Ecology and Evolution. 5(15): 2991-3002. 12 p. DOI:10.1002/ece3.1538
KeywordsAnuran larvae, fast-start performance, morphology, phenotypic integration, predation, tadpole.
- Body shape, burst speed and escape behavior of larval anurans
- Differential jumping performance in newly metamorphosed Blanchard's cricket frogs, Acris blanchardi (Anura: Hylidae), from fish- and invertebrate-dominated ponds
- A review of basin morphology and pool hydrology of isolated ponded wetlands: implications for seasonal forest pools of the northeastern United States
XML: View XML