You are here: Home
/ Publication Information
Title: Form and performance: body shape and prey-capture success in four drift-feeding minnows
Author: Rincón, Pedro A.; Bastir, Markus; Grossman, Gary D.;
Source: Oecologia (2007) 152:345?355
Publication Series: Miscellaneous Publication
Description: Identifying links between morphology and performance for ecologically relevant tasks will help elucidate the relationships between organismal design and fitness. We conducted a laboratory study to quantify the relationship between variation in body shape and prey-capture success in four drift-feeding minnow species. We offered drifting prey to individual fish in a test flume, counted successful strikes to measure prey-capture success and recorded the position (X, Y coordinates) of ten landmarks on each fish?s outline to delineate the specimen?s form. We then quantified shape variation among species and related it to capture performance through thin-plate spline analysis. Body shape varied significantly among species and with specimen size and was the major determinant of capture success, explaining 45?47% of its variability. Prey-capture success at differing velocities differed among species, but once the effects of shape and size were accounted for, those differences were no longer significant. Allometric shape changes appeared responsible for most of the ontogenetic variation in capture performance, although other size-related, non-shape factors also seemed relevant.
Keywords: Ecomorphology, Ecologically relevant tasks, Morphological costs, Stream fishes, Cyprinidae
- 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.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Rincón, Pedro A.; Bastir, Markus; Grossman, Gary D. 2008. Form and performance: body shape and prey-capture success in four drift-feeding minnows. Oecologia (2007) 152:345?355
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility