Relationships among area, habitat heterogeneity and bird assemblages were examined for
21 forest fragments (3 to 7620 ha) in an agricultural landscape near Ottawa, Canada. Habitat …

Both physical and biological processes shape species assemblages (communities). For birds,
vegetation structure has long been assumed to be the dominant factor in habitat selection, …

The existing literature was examined to assess the extent to which wildlife (plants, soil
organisms, above-ground insects/arthropods, mammals, birds) living in terrestrial habitats has …

Environment Canada uses an Expected Environmental Concentration (EEC) in evaluating
the hazard of pesticides to nontarget aquatic organisms. This concentration is calculated by …

This paper presents a critical review on phytotoxicity tests for environmental monitoring and
assessment. Vascular macrophytes used in the laboratory testing are emphasized; algae are …

Existing information on bird species composition, abundance and nesting status during the
breeding season (May through July) was compiled for habitats characteristic of the …

Population declines of farmland birds over recent decades in Europe, Canada and the USA
have been attributed to more intensive agricultural management. We counted birds during …

The contributions of current agricultural practices to environmental degradation and the
social problems facing agricultural regions are well known. However, landscape-scale …

Nest predation is an important cause of mortality for many bird species, especially in grassland
ecosystems where generalist predators have responded positively to human disturbance …

Artificial nest experiments have been used in an attempt to understand patterns of predation
affecting natural nests. A growing body of literature suggests that neither relative rates nor …