Skip to main content
Log in

Post-invasion demography and persistence of a novel functional species in an estuarine system

  • Original Paper
  • Published:
Biological Invasions Aims and scope Submit manuscript

Abstract

Long-term population data of marine invaders are rarely collected although it provides fundamental knowledge of the invasion dynamics that is important for evaluating the impacts, interactions and range expansion of the invader and for management purposes. During a 6-year monitoring period, we studied the dynamics and population demographic characteristics of the newly introduced mud crab Rhithropanopeus harrisii. The overall abundance of R. harrisii appeared to follow the boom and bust pattern with a rapid initial abundance increase and subsequent decline. The recruitment and growth of juveniles were correlated with the temperature during the larval period indicating that the increase in water temperature caused by climate change could have a positive effect on the recruitment and have potentially facilitated the establishment of R. harrisii in the northern Baltic Sea. The changes in the survival of reproductive females influence most the growth rate of the studied population. Hence, native predators feeding on benthic fauna such as fish could regulate the population growth of R. harrisii in the study area by reducing female survival. Although the population size seems to be stabilized at the monitoring locations, R. harrisii continues to expand its distribution range, and the rapid initial population increase is likely occurring at newly invaded sites.

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
Fig. 4
Fig. 5

Similar content being viewed by others

References

Download references

Acknowledgements

This study was financed by the Finnish Foundation for Nature Conservation from Rafael Kuuskoski memorial fund. A Research Coordination Network Grant funded by the Global Invasions Network, with support from the National Science Foundation, was awarded to AEF for this research. We would like to thank Juho Yli-Rosti and Salla Mikkola that have helped to collect the population data. We would also like to thank Veijo Jormalainen, Maiju Lehtiniemi, Jonne Kotta and three anonymous reviewers for the comments that greatly improved the manuscript.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Tiia Forsström.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (PDF 264 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Forsström, T., Vesakoski, O., Riipinen, K. et al. Post-invasion demography and persistence of a novel functional species in an estuarine system. Biol Invasions 20, 3331–3345 (2018). https://doi.org/10.1007/s10530-018-1777-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10530-018-1777-1

Keywords

Navigation