Determining prey spectra of carnivorous sundews using DNA-metabarcoding
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Prey spectra of five closely-related species of carnivorous plants (Drosera sect. Arachnopus, Droseraceae) were investigated in their natural habitats in Western Australia using novel in-situ macro photography and DNA-metabarcoding techniques. Accurate analysis of prey spectra (even of heavily digested prey) at a taxonomic resolution and level of completeness unachievable by morphology-based methods was demonstrated. Observed prey selectivity in the scented D. fragrans supported the existence of an olfactory prey attraction strategy in this species.
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Size matters: trap size primarily determines prey spectra differences among sympatric species of carnivorous sundewsKrueger, Thilo; Cross, Adam ; Fleischmann, A. (2020)Even though carnivorous plants (CPs) are a popular focus of ecological research, surprisingly few studies have investigated their prey spectra (the number and composition of captured prey). This knowledge gap has important ...
Comparative behavior of red lionfish (Pterois volitans) on native and Pacific vs. invaded Atlantic coral reefsCure, K.; Benkwitt, C.; Kindinger, T.; Pickering, E.; Pusack, T.; McIlwain, Jennifer; Hixon, M. (2012)Pacific red lionfish Pterois volitans have invaded Atlantic reefs and reached much greater population densities than on native reefs. We hypothesized that lionfish on invaded reefs would (1) experience higher kill rates ...
Matyas, Laszlo; Neagu, E.; Vajda, A. (2015)© 2015, Gh. Asachi Technical University of Iasi.We started from a prey-predator model, where a periodic variation in the number of prey and predators is possible, without perturbation. We followed the line that periodically ...