Number of the records: 1
Breeding resource specialization and speciation in fishes
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SYSNO ASEP 0337024 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Breeding resource specialization and speciation in fishes Author(s) Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
Kitamura, J. (JP)
Smith, C. (GB)Number of authors 3 Source Title International Conference on Evolutionary Ecology of Fishes Diversification, Adaptation and Speciation. - Berlin : Leibnitz-Institute of Freshwater Ecology and Inland Fisheries, 2009
S. 69Number of pages 1 s. Action International Conference on Evolutionary Ecology of Fishes Diversification, Adaptation and Speciation Event date 23.11.2009-25.11.2009 VEvent location Berlin Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords fish reproduction Subject RIV EH - Ecology, Behaviour R&D Projects KJB600930802 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z60930519 - UBO-W (2005-2011) Annotation Many fish species are dependent on resources crucial to their reproduction, and such resources can often comprise other biological species. Notable examples are fish living in symbiosis with other species of fish or invertebrates. These relationships may range from mutualism to parasitism and are typically associated with fish oviposition. Coevolution (reciprocal evolution between symbionts that results in a rapid evolution of traits involved in the symbiosis) between the partners may give rise to evolution of host-specific races and ultimately lead to speciation of host-specific lineages. On the other hand, specialization is not an inevitable outcome of these relationships, because specialization may carry costs associated with locating an appropriate specific partner. Hence, it may sometimes be more adaptive to remain generalist and opportunistically exploit several symbiont species. Here, we explore the possibility that coevolution between fish and their symbionts may lead to speciation. We first review the examples known from coral reefs (e.g. anemone fishes, shrimp-goby relationships), brood parasites (Synodontis, Pungtungia) and fish that spawn on living invertebrate hosts (Aulichthys, Careproctus, Sarcocheilichthys), and investigate the potential of these lineages to diverge due to their specialization. In the second part, we review our current knowledge on host specificity and its potential for speciation in the bitterling fishes, a cyprinid subfamily with at least 40 species that all use living freshwater mussels for oviposition. There are some examples of host specialization in fishes (e.g. gobies Gobiodon, bitterling Acheilognathus tabira species-complex) and we critically evaluate their proposed origin in sympatry (gobies) and allopatry (bitterling). We also discuss constrains to host specialization, using the case of European bitterling (Rhodeus amarus). We conclude that, unlike in many other taxa, interspecific oviposition associations, including parasitic and mutualistic relationships, may not be be a significant source of divergence in fishes. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2010
Number of the records: 1