Počet záznamů: 1
Breeding resource specialization and speciation in fishes
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SYSNO ASEP 0337024 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Breeding resource specialization and speciation in fishes Tvůrce(i) Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
Kitamura, J. (JP)
Smith, C. (GB)Celkový počet autorů 3 Zdroj.dok. International Conference on Evolutionary Ecology of Fishes Diversification, Adaptation and Speciation. - Berlin : Leibnitz-Institute of Freshwater Ecology and Inland Fisheries, 2009
S. 69Poč.str. 1 s. Akce International Conference on Evolutionary Ecology of Fishes Diversification, Adaptation and Speciation Datum konání 23.11.2009-25.11.2009 Místo konání Berlin Země DE - Německo Typ akce WRD Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova fish reproduction Vědní obor RIV EH - Ekologie - společenstva CEP KJB600930802 GA AV ČR - Akademie věd CEZ AV0Z60930519 - UBO-W (2005-2011) Anotace 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. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2010
Počet záznamů: 1