Decoupled ecomorphological evolution and diversification in Neogene-Quaternary horses

@article{Cantalapiedra2017DecoupledEE,
  title={Decoupled ecomorphological evolution and diversification in Neogene-Quaternary horses},
  author={Juan L. Cantalapiedra and Jos{\'e} L Prado and Mois{\'e}s Hern{\'a}ndez Fern{\'a}ndez and Mar{\'i}a Teresa Alberdi},
  journal={Science},
  year={2017},
  volume={355},
  pages={627 - 630}
}
What drives divergence? Horse evolution has long been held as a classic example of adaptive radiation. It has been thought that an increase in the height of cheek teeth opened up new grass resources, leading to divergence. Cantalapiedra et al., however, found that although the Equinae have experienced high levels of divergence, these splits do not appear to have been related initially to specific phenotypic changes. Instead, it seems that external environmental drivers and patterns of migration… Expand
Megaevolutionary dynamics and the timing of evolutionary innovation in reptiles
TLDR
Major time lags are reported between phases of rapid phenotypic change at the origin of major reptile lineages and periods of fast molecular change and adaptive radiation. Expand
High extinction rates and non-adaptive radiation explains patterns of low diversity and extreme morphological disparity in North American blister beetles (Coleoptera, Meloidae).
TLDR
This study infer phylogenetic relationships and lineage divergence times within Eupomphini (Meloidae), a tribe of blister beetles endemic to the arid zone of North America, which exhibits a puzzling pattern of very low species richness but wild variation in morphological diversity across extant taxa. Expand
Seed size and its rate of evolution correlate with species diversification across angiosperms
TLDR
It is shown that absolute seed size and the rate of change in seed size are both associated with variation in diversification rates, and that smaller-seeded plants had higher rates of diversification, possibly due to improved colonisation potential. Expand
Rapid Initial Morphospace Expansion and Delayed Morphological Disparity Peak in the First 100 Million Years of the Archosauromorph Evolutionary Radiation
Adaptive radiations have played a major role in generating modern and deep-time biodiversity. The Triassic radiation of the Archosauromorpha was one of the most spectacular vertebrate radiations,Expand
Seed size and its rate of evolution correlate with species diversification across angiosperms
TLDR
It is shown that absolute seed size and the rate of change in seed size are both associated with variation in diversification rates, and that smaller-seeded plants had higher rates of diversification, possibly due to improved colonisation potential. Expand
Heterogeneous relationships between rates of speciation and body size evolution across vertebrate clades
TLDR
Phylogenetic comparative methods applied to datasets of body size in five major vertebrate clades show that rates of speciation and morphological evolution are positively related at broad macroevolutionary scales but with heterogeneity in the strength and direction of these associations at finer scales. Expand
Ecological causes of uneven speciation and species richness in mammals
TLDR
This work investigates global speciation-rate variation across crown Mammalia using a novel time-scaled phylogeny, finding that trait- and latitude-associated speciation has caused uneven species richness among groups, and identifies 24 branch-specific shifts in net diversification rates linked to ecological traits. Expand
Cope's rule and the adaptive landscape of dinosaur body size evolution
TLDR
It is found that dinosaur evolution is constrained by attraction to discrete body size optima that undergo rare, but abrupt, evolutionary shifts, demonstrating that bimodality in the macroevolutionary adaptive landscape for land vertebrates has existed for more than 200 million years. Expand
Rapid Pliocene Diversification of Modern Kangaroos
TLDR
It is shown that the most iconic of Australia’s terrestrial mammals, ‘true’ kangaroos and wallabies (Macropodini), diversified in response to Pliocene grassland emergence and undermines arguments attributing Pleistocene megafaunal extinction to aridity-forced dietary change. Expand
Dispersal ability predicts evolutionary success among mammalian carnivores
TLDR
A novel species-level phylogeny of all known extant and extinct species of the order Carnivora and related extinct groups is produced to show that there is instead a positive relationship between dispersal rate and diversification rate when all extinct species are included. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 86 REFERENCES
Diversity versus disparity and the radiation of modern cetaceans
TLDR
It is concluded that the signature of adaptive radiations may be retained within morphological traits even after equilibrium diversity has been reached and high extinction or fluctuations in net diversification have erased any signature of an early burst of diversification in the structure of the phylogeny. Expand
Explosive speciation at the base of the adaptive radiation of Miocene grazing horses
TLDR
The pattern of horse taxonomic evolution is logistic, with very high origination rates observed early during the radiation, and rates of morphological (dental) evolution during the period were 'normal' relative to other known fossil groups. Expand
Dynamic evolutionary change in post-Paleozoic echinoids and the importance of scale when interpreting changes in rates of evolution
TLDR
Recently developed methods for estimating rates of morphological evolution during the post-Paleozoic history of a major invertebrate clade, the Echinoidea are applied. Expand
Continental faunal exchange and the asymmetrical radiation of carnivores
TLDR
The evolution of eight Carnivora families that have migrated across the Northern Hemisphere is studied to investigate if continental invasions also result in explosive diversification dynamics and show that the importance of explosive radiations in shaping diversity extends beyond insular systems and have significant impact at continental scales. Expand
Adaptive radiation of multituberculate mammals before the extinction of dinosaurs
TLDR
It is shown that in arguably the most evolutionarily successful clade of Mesozoic mammals, the Multituberculata, an adaptive radiation began at least 20 million years before the extinction of non-avian dinosaurs and continued across the Cretaceous–Paleogene boundary. Expand
Graptoloid diversity and disparity became decoupled during the Ordovician mass extinction
TLDR
It is found that a general model of morphological selectivity has a low probability of producing the observed pattern of taxonomic selectivity and that the early recovery of graptoloid recovery is unexpectedly characterized by relatively low morphological disparity and innovation, despite also being an interval of elevated speciation. Expand
EARLY BURSTS OF BODY SIZE AND SHAPE EVOLUTION ARE RARE IN COMPARATIVE DATA
TLDR
It is suggested that the classical model of adaptive radiation, where morphological evolution is initially rapid and slows through time, may be rare in comparative data. Expand
Ecological generalization during adaptive radiation: evidence from Neogene mammals
TLDR
Simpson’s prediction that key adaptations that lead to adaptive radiation also result in decreased niche breadth is not supported in the case of the evolution of hypsodonty by the ungulates. Expand
The global diversity of birds in space and time
TLDR
It is found that birds have undergone a strong increase in diversification rate from about 50 million years ago to the near present, with a number of significant rate increases, both within songbirds and within other young and mostly temperate radiations including the waterfowl, gulls and woodpeckers. Expand
Body mass evolution and diversification within horses (family Equidae).
TLDR
The results clarify the role of species competition in body size evolution, indicate that morphological disparity and species diversity may be only weakly coupled in general, and demonstrate that large species may evolve from neutral macroevolutionary diffusion processes alone. Expand
...
1
2
3
4
5
...