The nutritional demands of animals vary by taxon. Across landscapes, communities of animals experience variability in the stoichiometry of carbon and nutrients within their resource base. Thus, we expect stoichiometry to contribute to the spatial variance in the demographic parameters of animal communities. Here, we measure how the composition of a litter-nesting tropical rainforest ant communi...

BACKGROUND Too much sitting, including time spent sitting in cars, is associated with poor health outcomes. Identifying the built-environment attributes that may reduce vehicular sitting time can inform future initiatives linking the public health, urban design, and transportation sectors. METHODS Data collected in 2003-2004 from adult residents (n = 2521) of Adelaide, Australia were used. Lo...

The role of density-dependent individual growth in the recruitment dynamics of fish populations has rarely been analysed in a quantitative framework. Variations of mean size of juveniles in response to changes in population densities have frequently been observed in salmonids and it has been shown that body-size differences at the juvenile stage can persist through the sub-adult and adult stage...

Sintering temperature and composition are two important factors that affect the properties of ceramic materials. In this study, effects sintering temperature, dwelling time, intermediate dwell, B4C content on density, microstructure, elastic dense SiC ceramics were investigated. 1.5 wt% C 0.25 or 0.5 added to which was spark plasma sintered (SPS) at 1900 °C, 1950 2000 °C under a pressure 50 MPa...

Abstract Density dependence is a strong regulator of animal populations, operating primarily through intraspecific competition for limiting resource. Because food generally limited in natural environments, it typically assumed that increasing density leads to reduced individual fitness depletion or monopolization. However, recent work demonstrates can occur without apparent depletion, with virt...