From Sea to Sea: Canada's Three Oceans of Biodiversity

Evaluating and understanding biodiversity in marine ecosystems are both necessary and challenging for conservation. This paper compiles and summarizes current knowledge of the diversity of marine taxa in Canada's three oceans while recognizing that this compilation is incomplete and will change in the future. That Canada has the longest coastline in the world and incorporates distinctly different biogeographic provinces and ecoregions (e.g., temperate through ice-covered areas) constrains this analysis. The taxonomic groups presented here include microbes, phytoplankton, macroalgae, zooplankton, benthic infauna, fishes, and marine mammals. The minimum number of species or taxa compiled here is 15,988 for the three Canadian oceans. However, this number clearly underestimates in several ways the total number of taxa present. First, there are significant gaps in the published literature. Second, the diversity of many habitats has not been compiled for all taxonomic groups (e.g., intertidal rocky shores, deep sea), and data compilations are based on short-term, directed research programs or longer-term monitoring activities with limited spatial resolution. Third, the biodiversity of large organisms is well known, but this is not true of smaller organisms. Finally, the greatest constraint on this summary is the willingness and capacity of those who collected the data to make it available to those interested in biodiversity meta-analyses. Confirmation of identities and intercomparison of studies are also constrained by the disturbing rate of decline in the number of taxonomists and systematists specializing on marine taxa in Canada. This decline is mostly the result of retirements of current specialists and to a lack of training and employment opportunities for new ones. Considering the difficulties encountered in compiling an overview of biogeographic data and the diversity of species or taxa in Canada's three oceans, this synthesis is intended to serve as a biodiversity baseline for a new program on marine biodiversity, the Canadian Healthy Ocean Network. A major effort needs to be undertaken to establish a complete baseline of Canadian marine biodiversity of all taxonomic groups, especially if we are to understand and conserve this part of Canada's natural heritage

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

The recapitulation theory and human infancy,

Published also as Contributions to education, Teachers college, Columbia university, no. 65.Vita.Thesis (PH. D.)--Columbia university, 1914."Books and articles cited": p. 102-105.Mode of access: Internet

Border crossings: Thomas king’s cultural inversions

Thomas King is the first Native writer to generate widespread interest in both Canada and the United States. He has been nominated twice for Governor General’s Awards, and his first novel, Medicine River, has been transformed into a CBC movie. His books have been reviewed in publications such as The New York Times Book Review, The Globe and Mail, and People magazine. King is also the author of the serialized radio series The Dead Dog Café and is an accomplished photographer. Border Crossings is the first full-length study to explore King’s art. Davidson, Walton, and Andrews employ a framework of postcolonial and border studies theory to examine the concepts of nation, race, and sexuality in King’s work. They examine how King’s art routinely explores cross-cultural dynamics, including Native rights and race relations, American and Canadian cultural interaction, and the artistic traditions of Europe and North America. The authors argue that, by situating these concepts within a comic framework, King avoids the polemics that often surface in cultural critiques. His writing engages, entertains, and educates. This provocative analysis of King’s art reads across cultures and between borders, and makes an important contribution to the study of Native writing, Canadian and American literature, border studies, and humour studies