| Abstract | Adaptation to different ecological niches is considered one of the main drivers of species diversification, also in cryptic species complexes, notwithstanding their morphological stasis. We here review all the published information on ecological differentiation within cryptic species complexes within the phylum Rotifera. We found 177 instances of cryptic species identified genetically, published in 101 papers. Only a subset of the papers contained available information on ecological differences and only for two of the 54 known complexes, namely Brachionus calyciflorus s.l. and Brachionus plicatilis s.l., sufficient data were available for analyses of ecological differences. For the B. calyciflorus complex, B. fernandoi consistently occurred at a significantly lower temperature than the other species in the complex; no differences were found for other environmental variables. For the B. plicatilis complex, B. paranguensis occurred in waters with higher pH than the other species; no differences were found for other environmental variables. These results, even if preliminary and based on scattered information, reveal that adaptation to different ecological niches exists also between closely related species. Our aim is to showcase this interesting field of research spurring further detailed studies to focus on the mechanisms of ecological speciation using rotifer cryptic species as a model system. |
| Text | 485484 2024 10.1007/s10750 023 05291 7 rotifera Niche differentiation in rotifer cryptic species complexes a review of environmental effects Aleksandra Walczy ska, Diego Fontaneto, Azar Kordbacheh, Somia Hamil, Marco Antonio Jimenez Santos, Sofia Paraskevopoulou, Agnieszka Pociecha, Wei Zhang Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30 387, Krakow, Poland National Research Council of Italy CNR , Water Research Institute IRSA , Largo Tonolli 50, 28922, Verbania Pallanza, Italy National Biodiversity Future Center NBFC , Palermo, Italy Department of Biological Sciences, El Paso Community College, El Paso, TX, USA Laboratory of Eco Biology Animals L.E.B.A. , École Normale Superieure de Kouba Bachir El Ibrahimi, B.P. 92, 6050, Algiers, Algeria Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, eske Bud jovice, Czech Republic Microbiology Research Group, Department of Biology, Lund University, Lund, Sweden Institute of Nature Conservation, Polish Academy of Sciences, Av. Adama Mickiewicza 33, 31 120, Krakow, Poland Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Academy of Water Science and Engineering, Nanchang, 330029, China Adaptation to different ecological niches is considered one of the main drivers of species diversification, also in cryptic species complexes, notwithstanding their morphological stasis. We here review all the published information on ecological differentiation within cryptic species complexes within the phylum Rotifera. We found 177 instances of cryptic species identified genetically, published in 101 papers. Only a subset of the papers contained available information on ecological differences and only for two of the 54 known complexes, namely Brachionus calyciflorus s.l. and Brachionus plicatilis s.l., sufficient data were available for analyses of ecological differences. For the B. calyciflorus complex, B. fernandoi consistently occurred at a significantly lower temperature than the other species in the complex; no differences were found for other environmental variables. For the B. plicatilis complex, B. paranguensis occurred in waters with higher pH than the other species; no differences were found for other environmental variables. These results, even if preliminary and based on scattered information, reveal that adaptation to different ecological niches exists also between closely related species. Our aim is to showcase this interesting field of research spurring further detailed studies to focus on the mechanisms of ecological speciation using rotifer cryptic species as a model system. 851 Published version https //link.springer.com/article/10.1007/s10750 023 05291 7 ola 2024_Hydr_Walczynska et al EV.pdf Articolo in rivista Kluwer 1573 5117 Hydrobiologia Dordr., Online Hydrobiologia Dordr., Online Hydrobiologia Dordr., Online Hydrobiologia. Dordr., Online Hydrobiologia Dordrecht Dordr., Online Hydrobiologia Boston Dordr., Online Hydrobiologia London Dordr., Online diego.fontaneto FONTANETO DIEGO |
