Object's details: Assessment of the invasion potential of two genetically distinct populations of the Ponto-Caspian amphipod - Dikerogammarus villosus

Provider:Repozytorium Uniwersytetu Łódzkiego

Description

Title:
Assessment of the invasion potential of two genetically distinct populations of the Ponto-Caspian amphipod - Dikerogammarus villosus
Creator:
Podwysocki, Krzysztof
Contributor:
Uniwersytet Łódzki, Wydział Biologii i Ochrony Środowiska, Instytut Ekologii i Ochrony Środowiska, Katedra Zoologii Bezkręgowców i Hydrobiologii;
krzysztof.podwysocki.biol@gmail.com
Description:
This PhD thesis explored intraspecific variation in invasive potential in freshwater ecosystems using an invasive Ponto-Caspian amphipod – Dikerogammarus villosus – as a model species. This species has spread in Europe from two genetically distinct and geographically isolated populations: the Danube and the Dnieper deltas, forming the Western and the Eastern invasive groups, respectively. Its wide distribution and high invasiveness make it an ideal model for studying invasion potential at a population level. Firstly, I tested whether the Eastern Group could invade lakes using boating as a vector. Analyses revealed that tourism, especially sailing, facilitated its spread in the Masurian Lakeland. This species rapidly colonized new environments, displacing native and invasive species. Next, I assessed morphological variation across populations. The Eastern Group showed morphological adaptations for herbivory, while the Western Group exhibited adaptations for enhanced predatory capacity and locomotion. Morphospace changes indicated high phenotypic plasticity in the Eastern Group. Analyses of food preferences confirmed the conclusions of the morphological analyses - the Western Group being more carnivorous may pose a greater threat to aquatic macroinvertebrates, while the Eastern Group being more omnivorous may use food resources more efficiently in limited conditions. Finally, I compared dispersal abilities. The Eastern Group successfully competed for preferred habitats, forcing the Western Group to disperse further. These dynamics suggest that the Western Group may spread more widely in future. This research highlights how genetic and environmental factors shape invasive traits, emphasizing the need to study multiple populations to predict invasive species’ spread and ecological impacts.;
1. National Science Centre - grant: 2018/31/D/NZ8/03061 2. Doctoral School of Exact and Natural Sciences of University of Lodz 3. University of Lodz - internal grant for PhD students: B2310009000176.07
Object availability:
free access
Date:
2025.01.16;
2024;
2025.03.11
Type:
PhD/Doctoral Dissertation
Language:
English
Format:
application/pdf
Subject:
biological invasions;
water environment;
invasiveness;
intraspecific variability
Identifier: http://hdl.handle.net/11089/54258
Data provider:
Repozytorium Uniwersytetu Łódzkiego

Similar objects

Assessment of the invasion potential of two genetically distinct populations of the Ponto-Caspian amphipod - Dikerogammarus villosus

Creator:Podwysocki, Krzysztof

Date:2025.01.16 | 2024 | 2025.03.11

Type:text

Alien vascular plants in the Silesian Upland of Poland: distribution, patterns, impacts and threats

Date:2011.07.11

Type:other

Isolation and characterization of 8 microsatellite loci for the ‘‘killer shrimp’’, an invasive Ponto-Caspian amphipod Dikerogammarus villosus (Crustacea: Amphipoda)

Creator:Rewicz, Tomasz | Wattier, Rémi A. | Rigaud, Thierry | Bacela-Spychalska, Karolina | Grabowski, Michal

Date:2015.03.31 | 2015

Type:image

Alien plant species in the protected landscape area of the Odra river meanders: habitat preferences and threats

Creator:Koszela, Katarzyna | Tokarska-Guzik, Barbara

Date:2008.12.30

Type:other

Phylogeography of an invasive amphipod, Dikerogammarus villosus, in Europe

Creator:Rewicz, Tomasz

Date:2015.05.04 | 2015

Type:text

Evaluation of mutagenicity of anthracene and phenanthrene and products of their mirobiological transformation by the Ames test

Creator:Traczewska, Małgorzata Teodora

Date:1999

Type:other

Invasive plants in North America: a view from Ukraine

Creator:Mosyakin, Andriy S.

Date:2008.12.30

Type:other

Eating biodiversity

Creator:Courchamp, Franck

Date:2019.03.31

Type:sound

Federacja Bibliotek Cyfrowych

Object's details: Assessment of the invasion potential of two genetically distinct populations of the Ponto-Caspian amphipod - Dikerogammarus villosus

Description

Similar objects