Foraging strategy of a carnivorous-insectivorous raptor species based on prey size, capturability and nutritional components.

ABSTRACT: Optimal foraging theory has typically paid little attention to species feeding on mobile prey and has emphasised energy intake rather than the nutritional contribution of food. The difficulty of capturing food has rarely been included in foraging models, even when it is a potentially important modulator of time devoted to foraging. From the central place foraging and provisioning perspectives, it is posited that at high levels of prey selectivity, the time spent to capture prey is longer than at low levels of prey selectivity. Furthermore, in the case of carnivorous predators, it is thought that nutritional composition does not influence foraging strategies. To explore these issues, we investigated the influence of abundance, size, difficulty of capture, gross energy and nutritional compos

SUBMITTER: Fargallo JA 

PROVIDER: S-EPMC7200729 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature