Distribution patterns at different spatial scales reveal reproductive isolation and frequent syntopy among divergent lineages of an amphipod species complex in Western Carpathian streams
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10453306" target="_blank" >RIV/00216208:11310/22:10453306 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iPrFuu4Z26" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=iPrFuu4Z26</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/lno.12239" target="_blank" >10.1002/lno.12239</a>
Alternative languages
Result language
angličtina
Original language name
Distribution patterns at different spatial scales reveal reproductive isolation and frequent syntopy among divergent lineages of an amphipod species complex in Western Carpathian streams
Original language description
Recent discoveries of vast cryptic diversity among various aquatic invertebrates pose a challenge for understanding their ecology and biodiversity patterns, as well as for conservation. We studied the distribution, potential hybridization and habitat preferences of divergent lineages of the hyperdiverse Gammarus fossarum species complex (Crustacea: Amphipoda) in their contact zone in the Western Carpathians (Central Europe), to obtain insights into processes that may influence lineage coexistence. We initially screened over 60 sites to assess the regional distribution, confirming the presence of four lineages in streams of the study area. Two to three lineages were found to be syntopic at almost half the sites. Subsequently, nine such localities were studied in detail for the mesohabitat distribution (fast vs. slow water flow), pairing preferences, and temporal stability of the Gammarus community. A significant fraction of regional spatial variation was explained by the position in the dendritic river network, altitude, stream width, and anthropogenic stress. At the local scale, however, we did not find differences in distribution between mesohabitats with contrasting flow rates. Mixed precopulatory pairs in syntopy were extremely rare, even under highly imbalanced lineage ratios, confirming a strong prezygotic reproductive barrier between the studied lineages. This was congruent with species delimitation analyses using molecular markers, which confirmed the absence of any recent gene flow. The frequent and apparently temporally stable syntopy of these reproductively isolated Gammarus lineages warrants further research on the processes that may facilitate this coexistence, focusing on potential finer differences in their ecology, functional morphology, or biotic interactions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
<a href="/en/project/EF19_073%2F0016935" target="_blank" >EF19_073/0016935: Grant schemes at Charles University</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Limnology and Oceanography
ISSN
0024-3590
e-ISSN
1939-5590
Volume of the periodical
67
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
2796-2808
UT code for WoS article
000865652300001
EID of the result in the Scopus database
2-s2.0-85143667225