4 documents found, page 1 of 1
Isotope-based inferences of the trophic niche of short-finned pilot whales in t...
Escánez, Alejandro; Marrero-Pérez, Jacobo; Dromby, Morgane; Pimentel-González, Atenary; Dias, Ester; García-Pastor, Ester M.; Weyn, MiekeKnowledge of predator-prey interactions is key in ecological studies and understanding ecosystem function, yet this is still poorly explored in the deep-sea environment. Carbon (delta C-13: C-13/C-12) and nitrogen (delta N-15: N-15/N-14) stable isotope ratios of a deep-diving species, the short-finned pilot whale (Globicephala macrorhynchus), were used to explore knowledge gaps on its ecological niche and forag...
Trophic ecology of common bottlenose dolphins in a pelagic insular environment ...
Dias, Ester; Dromby, Morgane; Ferreira, Rita; Gil, Ágatha; Tejerina, Raquel; Castro, L. Filipe C.; Rosso, Massimiliano; Sousa-Pinto, IsabelThe common bottlenose dolphin (Tursiops truncatus) is a top marine predator widely dispersed in coastal and pelagic habitats and with a generalist feeding behavior. Yet, information on the trophic ecology of animals inhabiting pelagic environments is still scarce. Using carbon (& delta;C-13: C-13/C-12) and nitrogen (& delta;N-15: N-15/N-14) stable isotope ratios, we identified and quantified the main groups of ...
Ecophysiological traits of highly mobile large marine predators inferred from n...
Alves, Filipe; Dromby, Morgane; Baptista, Vânia; Ferreira, R.; Correia, A. M.; Weyn, M.; Valente, R.; Froufe, E.; Rosso, M.; Sousa-Pinto, I.; Dinis, A.Nucleic acid-derived indices such as RNA/DNA ratios have been successfully applied as ecophysiological indicators to assess growth, nutritional condition and health status in marine organisms given that they provide a measure of tissue protein reserves, which is known to vary depending on changes in the environment. Yet, the use of these biochemical indices on highly mobile large predators is scarce. In this st...
Assessment of the ecophysiological conditions and trophic ecology of two cetace...
Dromby, MorganeMadeira is home of up to 22 cetacean species, which makes this place an important spot for conservation measures. There is a need to assess the nutritional state of marine mammals in the region, to prevent or monitor detrimental effects from natural and anthropogenic stressors. This study investigates the nutritional state of bottlenose dolphins and short-finned pilot whales in Madeira, via the usage of RNA/DNA...