Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Terrestrial emigration behaviour of two invasive crayfish species

Thomas, John Rhidian, Masefield, Stephanie, Hunt, Rhiannon, Wood, Matt J., Hart, Adam G., Hallam, Jane, Griffiths, Siân W. ORCID: and Cable, Jo ORCID: 2019. Terrestrial emigration behaviour of two invasive crayfish species. Behavioural Processes 167 , 103917. 10.1016/j.beproc.2019.103917

[thumbnail of Manuscript_resubmission.pdf]
PDF - Accepted Post-Print Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (207kB) | Preview


To disperse between isolated waterbodies, freshwater organisms must often cross terrestrial barriers and many freshwater animals that are incapable of flight must rely on transport via flooding events, other animals or anthropogenic activity. Decapods such as crayfish, on the other hand, can disperse to nearby waterbodies by walking on land, a behaviour that has facilitated the spread of invasive species. Overland movement could play a key role in the management of non-native crayfish, though to what extent terrestrial emigration occurs in different species is poorly understood. Here, we directly compared the terrestrial emigration tendency of two non-native crayfish species in Great Britain; red swamp (Procambarus clarkii) and signal (Pacifastacus leniusculus) crayfish. We found that both species emigrated from the water and that there was no significant difference in terms of their terrestrial emigration tendency, suggesting that there is a risk both of these species will migrate overland and disperse to new habitats. This study shows that terrestrial emigration is an important behavioural trait to consider when preventing the escape of crayfish from aquaculture and further spread of invasive species.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Elsevier
ISSN: 0376-6357
Date of First Compliant Deposit: 29 August 2019
Date of Acceptance: 22 July 2019
Last Modified: 07 Jan 2024 19:39

Citation Data

Cited 10 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics