Gutsy genetics: identification of digested piscine prey items in the stomach contents of sympatric native and introduced warmwater catfishes via DNA barcoding
作者： Robert Aguilar , Matthew B. Ogburn , Amy C. Driskell , Lee A. Weigt , Mary C. Groves
DOI: 10.1007/S10641-016-0523-8
关键词: Ameiurus 、 Zoology 、 Catfish 、 Ictalurus 、 Ecology 、 Blue catfish 、 Predation 、 Morone americana 、 Biology 、 DNA barcoding 、 Cytochrome c oxidase subunit I
摘要: A major focus of ecology is understanding trophic relationships and energy flows in natural systems, associated food web dynamics and changes in food webs due to introduced species. Predator-prey interactions are often assessed by examining stomach contents. However, partially digested remains may be difficult to accurately identify by traditional visual analysis. Here we evaluate the effectiveness of DNA barcoding to identify digested piscine prey remains in invasive Blue Catfish Ictalurus furcatus, non-native, but established …
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