Skip to main content

Advertisement

Log in

Changing Only Slowly: The Role of Phylogenetic Niche Conservatism in Caviidae (Rodentia) Speciation

  • Original Paper
  • Published:
Journal of Mammalian Evolution Aims and scope Submit manuscript

Abstract

The dynamics of species diversification have attracted significant scientific attention in recent decades. Many lineages tend to maintain their niche characteristics over evolutionary time, a phenomenon known as phylogenetic niche conservatism (NC), which can slow the processes of ecological speciation by diversification selection. NC can, however, promote speciation through neutral evolution, favoring the geographic isolation of populations. Among the mega-diverse Rodentia group, the low species richness of the family Caviidae stands out. Here, we analyzed if the processes of climatic NC are related to the slow diversification observed in the Caviidae family. Locality data for 13 species and nine climatic variables were used to generate ecological niche models. Niche similarity was quantified using the Schoener D index and used to examine correlations between the times of species divergence and niche similarities, thus characterizing their niche occupation profiles (NOP). The NOP were subsequently used to perform phylogenetic niche reconstructions for these species. Niche models accurately described known distributions of species. The greatest niche overlap documented was between Kerodon rupestris and Galea spixii (0.86). The niche and species divergence times showed a negative correlation (beta = -0.013; p = 0.01). These results support the existence of NC, with phylogenetically closer species occupying similar niches, and emphasize the importance of NC in diversification processes at continental scales in a slowly diversifying group.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgements

DS thanks COPES scientific initiation grant (PVA4677-2016) and PAM thanks the funding agency CNPq (grant nº431463/2016-6) and PROEF(CAPES/FAPITEC/Proc 88881.157451/2017-01) for the financial support. We thanks to Dr. Diego Verzi and one anonymous reviewer for the constructive contribution.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Darlan da Silva.

Electronic supplementary material

ESM 1

(DOCX 53624 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

da Silva, D., Aires, A.E., Zurano, J.P. et al. Changing Only Slowly: The Role of Phylogenetic Niche Conservatism in Caviidae (Rodentia) Speciation. J Mammal Evol 27, 713–721 (2020). https://doi.org/10.1007/s10914-020-09501-0

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10914-020-09501-0

Keywords

Navigation