Název: Predation risk and habitat complexity modify intermediate predator feeding rates and energetic efficiencies in a tri-trophic system
Autoři: KOLÁŘ, Vojtěch
Typ dokumentu: Rigorózní práce
Rok: 2020
Jazyk: eng
Abstrakt: Many species show behavioural and physiological responses to predation risk, with important implications for their individual growth and development, but these responses may be context dependent. The goal of this study was to measure feeding and metabolic rates of intermediate invertebrate predators under different levels of predation risk and abiotic conditions to understand how they might affect their energetic efficiency, i.e. the ability to utilize available resources for individual growth. We ran laboratory experiments with larvae of three odonate species representing intermediate predators exposed to three levels of predation risk (none, visual cues, and visual and chemical cues) and two levels of habitat complexity (present vs. absent artificial submerged vegetation). We show that the response of intermediate predators to predation risk and its consequences for energetic efficiency are species specific and likely determined by their foraging and defense traits and their habitat domains.
Klíčová slova: chemical cues; metabolic rate; Odonata; predator-prey interactions; trait-mediated effects
Citace: KOLÁŘ, Vojtěch. Predation risk and habitat complexity modify intermediate predator feeding rates and energetic efficiencies in a tri-trophic system. České Budějovice, 2020. rigorózní práce (RNDr.). JIHOČESKÁ UNIVERZITA V ČESKÝCH BUDĚJOVICÍCH. Přírodovědecká fakulta

Instituce: Jihočeská univerzita v Českých Budějovicích (web)
Informace o dostupnosti dokumentu: Plný text je dostupný v digitálním repozitáři JČU.
Původní záznam: http://www.jcu.cz/vskp/60042

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-515939


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Školství > Veřejné vysoké školy > Jihočeská univerzita v Českých Budějovicích
Vysokoškolské kvalifikační práce > Rigorózní práce