Quantifying the energy requirements of animals in nature is critical for understanding physiological, behavioural, and ecosystem ecology; however, for difficult-to-study species such as large sharks, prey intake rates are largely unknown. Here, we use metabolic rates derived from swimming speed estimates to suggest that feeding requirements of the world's largest predatory fish, the white shark...

A discussion of the agronomic theory of placing plant nutrients in the root zone of ornamental trees and plants by high pressure hydraulic injection. Definite beneficial effects of deep root injection feeding by high pressure in jection of plant nutrients have been observed in tree and ornamental plant installation and main tenance. The response outperformed conventional surface applications of...

Behavioral ecology and population ecology are two separate branches of ecology; studies linking the effect of individual behavior and population dynamics are rare. This paper connects a stochastic optimal foraging model of insect predators with an age structured population model of its prey. I modeled syrphid larvae feeding on cereal aphids, an interaction critical to cereal crops in Germany. T...

1. Prologue 2. Taxonomy and distribution of seabirds 3. Feeding ecology of seabirds 3.1. Feeding habitats for seabirds 3.2. The role of seabirds in marine ecosystems and nutrient cycling 3.3. Mechanisms used by seabirds for obtaining food 4. Seabird migration 5. Life cycles and breeding behavior of seabirds 5.1. Social breeding and mating systems 5.2. Breeding parameters of seabirds 5.3. Seabir...