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River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues

The behavior of animals can change when they become invasive. Whilst many species demonstrate exaggerations of existing behaviors, signal crayfish (Pacifastacus leniusculus) display a novel burrowing activity in some invaded rivers. Understanding if burrowing is learned or innate is important for mo...

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Main Authors: Catherine H Sanders, Stephen Rice, Paul Wood, Lindsey K Albertson
Format: Default Article
Published: 2023
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Online Access:https://hdl.handle.net/2134/23544519.v1
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author Catherine H Sanders
Stephen Rice
Paul Wood
Lindsey K Albertson
author_facet Catherine H Sanders
Stephen Rice
Paul Wood
Lindsey K Albertson
author_sort Catherine H Sanders (16422133)
collection Figshare
description The behavior of animals can change when they become invasive. Whilst many species demonstrate exaggerations of existing behaviors, signal crayfish (Pacifastacus leniusculus) display a novel burrowing activity in some invaded rivers. Understanding if burrowing is learned or innate is important for modelling the geomorphological effects of invasion into new territories. Mesocosm experiments were undertaken with signal crayfish to investigate the effects of population density, shelter availability, and population provenance on their likelihood to burrow. Crayfish were collected within their native range in the USA; a recently invaded site in the USA; and two well-established invasive populations in the UK – one where burrowing in the field was present, and one population where burrowing in the field was absent. Crayfish from all populations constructed burrows in laboratory experiments. Population density and shelter availability were significant drivers of burrowing. There was no difference in burrowing betweenthe invasive UK populations and the US native population, suggesting that burrowing is an innate, rather than learned. Therefore, crayfish have the capacity to affect geomorphic processes in any river that they invade, regardless of the source population. However, crayfish from the recently invaded USA river excavated more sediment than crayfish from their native range. These results demonstrate high plasticity of signal crayfish activities and show that innate behavioral strategies not seen in the native range can be activated at invaded sites.
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spelling rr-article-235445192023-06-28T00:00:00Z River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues Catherine H Sanders (16422133) Stephen Rice (1255812) Paul Wood (1255125) Lindsey K Albertson (16422143) Biological sciences Environmental sciences behavioral plasticity crayfish zoogeomorphology invasive species burrowing <p>The behavior of animals can change when they become invasive. Whilst many species demonstrate exaggerations of existing behaviors, signal crayfish (<em>Pacifastacus leniusculus</em>) display a novel burrowing activity in some invaded rivers. Understanding if burrowing is learned or innate is important for modelling the geomorphological effects of invasion into new territories. Mesocosm experiments were undertaken with signal crayfish to investigate the effects of population density, shelter availability, and population provenance on their likelihood to burrow. Crayfish were collected within their native range in the USA; a recently invaded site in the USA; and two well-established invasive populations in the UK – one where burrowing in the field was present, and one population where burrowing in the field was absent. Crayfish from all populations constructed burrows in laboratory experiments. Population density and shelter availability were significant drivers of burrowing. There was no difference in burrowing betweenthe invasive UK populations and the US native population, suggesting that burrowing is an innate, rather than learned. Therefore, crayfish have the capacity to affect geomorphic processes in any river that they invade, regardless of the source population. However, crayfish from the recently invaded USA river excavated more sediment than crayfish from their native range. These results demonstrate high plasticity of signal crayfish activities and show that innate behavioral strategies not seen in the native range can be activated at invaded sites.</p> 2023-06-28T00:00:00Z Text Journal contribution 2134/23544519.v1 https://figshare.com/articles/journal_contribution/River_bank_burrowing_is_innate_in_native_and_invasive_signal_crayfish_em_Pacifastacus_leniusculus_em_and_is_driven_by_biotic_and_abiotic_cues/23544519 All Rights Reserved
spellingShingle Biological sciences
Environmental sciences
behavioral plasticity
crayfish
zoogeomorphology
invasive species
burrowing
Catherine H Sanders
Stephen Rice
Paul Wood
Lindsey K Albertson
River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title_full River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title_fullStr River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title_full_unstemmed River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title_short River bank burrowing is innate in native and invasive signal crayfish (<em>Pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
title_sort river bank burrowing is innate in native and invasive signal crayfish (<em>pacifastacus leniusculus</em>) and is driven by biotic and abiotic cues
topic Biological sciences
Environmental sciences
behavioral plasticity
crayfish
zoogeomorphology
invasive species
burrowing
url https://hdl.handle.net/2134/23544519.v1