Relative gut lengths of coral reef butterflyfishes (Pisces: Chaetodontidae)
Berumen, Michael L.
Pratchett, Morgan S.
Goodman, B. A.
MetadataShow full item record
Variation in gut length of closely related animals is known to generally be a good predictor of dietary habits. We examined gut length in 28 species of butterflyfishes (Chaetodontidae), which encompass a wide range of dietary types (planktivores, omnivores, corallivores). We found general dietary patterns to be a good predictor of relative gut length, although we found high variation among groups and covariance with body size. The longest gut lengths are found in species that exclusively feed on the living tissue of corals, while the shortest gut length is found in a planktivorous species. Although we tried to control for phylogeny, corallivory has arisen multiple times in this family, confounding our analyses. The butterflyfishes, a speciose family with a wide range of dietary habits, may nonetheless provide an ideal system for future work studying gut physiology associated with specialisation and foraging behaviours.
Author Posting. © The Author(s), 2011. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Coral Reefs 30 (2011): 1005-1010, doi:10.1007/s00338-011-0791-x.
Showing items related by title, author, creator and subject.
The use of specialisation indices to predict vulnerability of coral-feeding butterflyfishes to environmental change Lawton, Rebecca J.; Pratchett, Morgan S.; Berumen, Michael L. (2011-07)In the absence of detailed assessments of extinction risk, ecological specialisation is often used as a proxy of vulnerability to environmental disturbances and extinction risk. Numerous indices can be used to estimate ...
Differences in demographic traits of four butterflyfish species between two reefs of the Great Barrier Reef separated by 1,200 km Berumen, Michael L.; Trip, E. D.; Pratchett, Morgan S.; Choat, J. Howard (2011-10)Many species demonstrate variation in life history attributes in response to gradients in environmental conditions. For fishes, major drivers of life history variation are changes in temperature and food availability. This ...
Acoustic scattering by axisymmetric finite-length bodies with application to fish : measurement and modeling Reeder, D. Benjamin (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2002-06)This thesis investigates the complexities of acoustic scattering by finite bodies in general and by fish in particular through the development of an advanced acoustic scattering model and detailed laboratory acoustic ...