... predation danger. Birds also demonstrate an ability to maintain body mass across a range of food qualities. Although the adaptive significance of mass regulation has received a great deal of theoretical and empirical attention, the mechanisms by which birds achieve this have not. Several non-exclusive...

... by the exaggeration of male sexual traits to which resources are preferentially allocated. Ecological stoichiometry Sexual selection Radiotracer Acquisition Assimilation Food quality Sexual dimorphism accounts for a large portion of the phenotypic variation observed within species. Despite...

...Marcus Lukas; Alexander Wacker We studied the carbon (C) metabolism in Daphnia when the amount of C (food quantity) and/or the content of biochemical nutrients (food quality) was limiting. Growth performances and C budgets of Daphnia magna (assimilation, faeces egestion, excretion and respiration...

... ) 6 9 2006 © The Company of Biologists Limited 2006 2006 thermoregulation foraging food quality endothermy Bombus The modulation of body temperature by active or passive means at or near a specific set point is found widely among insects( Heinrich, 1993 ), particularly...

... © The Company of Biologists Limited 2003 2003 nitrogen balance energy balance food quality arthropod consumption hummingbird green-backed firecrown Sephanoides sephaniodes Chile Floral nectars exploited by hummingbirds are rich in water and carbohydrates, but contain only traces...