Canadian biodiversity : Biodiversité canadienne: état et les tendances des écosystèmes en 2010

You are asked to: • Exercise due diligence in ensuring the accuracy of the materials reproduced; • Indicate both the complete title of the materials reproduced, as well as the author organization; and • Indicate that the reproduction is a copy of an official work that is published by the Government of Canada and that the reproduction has not been produced in affiliation with or with the endorsemen [...] AGRICULTURAL LANDSCAPES AS HABITAT The potential capacity of agricultural landscapes to support wildlife in Canada has declined over the past 20 years, largely due to the intensification of agriculture and the loss of natural and semi-natural land cover. [...] An example of the impact from a major reduction in one food web component is the decline of Diporeia, a small relative of shrimp and historically the dominant invertebrate in most of the Great Lakes. [...] The second deals with the policy implications resulting from rapid and unexpected change and the crossing of ecological thresholds, especially in the context of a changing climate. [...] The height of the stack of papers beside each key finding represents confidence in the finding, based on an evaluation of the adequacy of the supporting evidence.