Natural populations consist of phenotypically diverse individuals that exhibit variation in their
demographic parameters and intra-and inter-specific interactions. Recent experimental work …

Ecology Letters (2011) 14: 948–958 Abstract Many generalist populations are composed of
specialised individuals, whose niches are small subsets of the population niche. This …

Most empirical and theoretical studies of resource use and population dynamics treat
conspecific individuals as ecologically equivalent. This simplification is only justified if …

Individuals often differ in what they do. This has been recognised since antiquity.
Nevertheless, the ecological and evolutionary significance of such variation is attracting …

The pulp of fleshy fruits, with the soft, edible, nutritive tissues surrounding the seeds, is a
primary food resource for many frugivorous animals, notably mammals and birds, but also …

In vertebrates and invertebrates, morphological and functional features of gastrointestinal
(GI) tracts generally reflect food chemistry, such as content of carbohydrates, proteins, fats …

Food is vital for life. It provides nutrients for growth, maintenance, and reproduction, and is
the source of energy that drives the chemical reactions occurring in every cell. 1, 2 However …

The morphological and functional design of gastrointestinal tracts of many vertebrates and
invertebrates can be explained largely by the interaction between diet chemical constituents …

Summary 1 We studied chick diet in a known‐age, sexed population of a long‐lived seabird,
the Brünnich's guillemot (Uria lomvia), over 15 years (N= 136; 1993–2007) and attached …

Intraspecific competition affects the strength of individual specialization: an optimal diet theory
method Page 1 Intraspecific competition affects the strength of individual specialization: an …