hrvatski jezikClear Cookie - decide language by browser settings

Physiological performance of native and invasive crayfish species in a changing environment: insights from Dynamic Energy Budget models

Marn, Nina; Hudina, Sandra; Haberle, Ines; Dobrović, Ana; Klanjšček, Tin (2022) Physiological performance of native and invasive crayfish species in a changing environment: insights from Dynamic Energy Budget models. Conservation Physiology, 10 (1). ISSN 2051-1434

PDF - Published Version - article
Available under License Creative Commons Attribution.

Download (3MB) | Preview


Crayfish are keystone species important for maintaining healthy freshwater ecosystems. Crayfish species native to Europe, such as Astacus astacus and Austropotamobius torrentium, are facing decline and are increasingly endangered by changing climate and invasions of non-native crayfish, such as Pacifastacus leniusculus and Procambarus virginalis. The success of these invasions largely depends on differences in ontogeny between the native species and the invaders and how changes in the environment will affect the ontogeny. Dynamic Energy Budget (DEB) models can be used to investigate such differences because the models capture dependence of metabolism, and therefore ontogeny, on environmental conditions. We develop DEB models for all four species and investigate key elements of ontogeny and metabolism affecting interspecific competition. We then use the DEB models to predict individual growth and reproduction in current and new conditions that are expected to arise from climate change. Although observations suggest that P. leniusculus poses the major threat to native species, our analysis identifies P. virginalis, in spite of its smaller size, as the superior competitor by a large margin—at least when considering metabolism and ontogeny. Our simulations show that climate change is set to increase the competitive edge of P. virginalis even further. Given the prospects of P. virginalis dominance, especially when considering that it is able to withstand and spread at least some crayfish plague strains that severely affect native species, additional research into P. virginalis is necessary.

Item Type: Article
Uncontrolled Keywords: Decapoda ; invasion potential ; life history traits ; ontogeny ; standard DEB model ; freshwater crayfish
Subjects: NATURAL SCIENCES > Biology
NATURAL SCIENCES > Interdisciplinary Natural Sciences
Divisions: Division for Marine and Enviromental Research
Project titleProject leaderProject codeProject type
Promjene sastava patogena i imunološkog odgovora tijekom širenja areala uspješnih invazivnih vrsta slatkovodnih rakovaHudina, SandraUIP-2017-05-1720HRZZ
Depositing User: Nina Marn
Date Deposited: 30 Jun 2022 08:13
DOI: 10.1093/conphys/coac031

Actions (login required)

View Item View Item


Downloads per month over past year

Increase Font
Decrease Font
Dyslexic Font