10.5061/DRYAD.H9873
Santini, Francesco
University of California Los Angeles
Nguyen, Mai T. T.
University of California Los Angeles
Sorenson, Laurie
University of California Los Angeles
Waltzek, Thomas B.
University of Florida
Lynch Alfaro, Jessica W.
University of California Los Angeles
Eastman, Jonathan M.
University of Idaho
Alfaro, Michael E.
University of California Los Angeles
Data from: Do habitat shifts drive the diversity in teleost fishes? An
example from the pufferfishes (Tetraodontidae)
Dryad
dataset
2013
Paleogene
Neogene
Comparative studies
Tetraodontiformes
Tetraodontidae
Diversification rates
2013-01-14T16:51:37Z
2013-01-14T16:51:37Z
en
https://doi.org/10.1111/jeb.12112
846635 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Habitat shifts are implicated as the cause of many vertebrate radiations,
yet relatively few empirical studies quantify patterns of diversification
following colonization of new habitats in fishes. The pufferfishes (family
Tetraodontidae) occur in several habitats, including coral reefs and
freshwater, which are thought to provide ecological opportunity for
adaptive radiation, and thus provide a unique system for testing the
hypothesis that shifts to new habitats alter diversification rates. To
test this hypothesis we sequenced eight genes for 96 species of
pufferfishes and closely related porcupine fishes, and added 19 species
from sequences available in GenBank. We time-calibrated the molecular
phylogeny using three fossils, and performed several comparative analyses
to test whether colonization of novel habitats led to shifts in the rate
of speciation and body size evolution, central predictions of clades
experiencing ecological adaptive radiation.. Colonization of freshwater is
associated with lower rates of cladogenesis in pufferfishes though these
lineages also exhibit accelerated rates of body size evolution. Increased
rates of cladogenesis are associated with transitions to coral reefs, but
reef lineages surprisingly exhibit significantly lower rates of body size
evolution. These results suggest that ecological opportunity afforded by
novel habitats may be limited for pufferfishes due to competition with
other species, constraints relating to pufferfish life history and trophic
ecology, and other factors.
Santini_et_al_2013_timetreePufferfish timetree, Newick
formatSantini_et_al_2013_115taxa_8genesPufferfish DNA alignment, Nexus
format