Contrasting Growth On Different Peptones

Immunochemical Studies with Peptones

The experiments here described indicate that the peptone fractions can alter the different blood elements in such a manner as to affect their immunological reactions. This power is not possessed by all the peptones equally, either qualitatively or quantitatively. If we regard the phenomenon of hemolysis by immune serum in the light of a biochemical process, depending upon properties inherent in...

Impacts of Parasites in Early Life: Contrasting Effects on Juvenile Growth for Different Family Members

Parasitism experienced early in ontogeny can have a major impact on host growth, development and future fitness, but whether siblings are affected equally by parasitism is poorly understood. In birds, hatching asynchrony induced by hormonal or behavioural mechanisms largely under parental control might predispose young to respond to infection in different ways. Here we show that parasites can h...

Contrasting Effects of Different Mammalian Herbivores on Sagebrush Plant Communities

Herbivory by both grazing and browsing ungulates shapes the structure and functioning of terrestrial ecosystems worldwide, and both types of herbivory have been implicated in major ecosystem state changes. Despite the ecological consequences of differences in diets and feeding habits among herbivores, studies that experimentally distinguish effects of grazing from spatially co-occurring, but te...

Effects of two contrasting canopy manipulations on growth

N.A. Hipps : M.J. Davies : J.M. Dunn : H Griffiths : C.J. Atkinson 11 12 N.A. Hipps 13 email: [email protected] 14 15 M.J. Davies 16 email: [email protected] 17 18 J.M. Dunn 19 email: [email protected] 20 21 H. Griffiths 22 email: Howard Griffiths [email protected] 23 24 C.J. Atkinson 25 email: [email protected] 26 27 28 Corresponding author ([email protected], +44 (0...

Growth analysis of wheat and barley on different soil types