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This manual offers foresters information to help them understand the performance of spruce seedlings after being planted on a reforestation site. It was written for university students taking a regeneration silviculture class, and foresters and researchers who work with spruce species.
The Hudson Bay Lowland is the Earth's largest more or less continuous temperate wetland landscape. This book documents 816 native and 95 non-native vascular plants in the context of the distinct geological history and ecology of the area. It includes text and annotated checklist that are complemented by distribution maps and colour illustrations.
The morphology, evolution, and paleoecology of the highly successful Silurian atrypide spire-bearers is described in detail, including the documentation of several new species. Numerous detailed illustrations and plates accompany the text.
Because of their generally great abundance and high diversity, brachiopods from the Red River and Stony Mountain formations of southern Manitoba are important to understanding the pattern, process, and rate of evolution, radiation, and extinction of the North American epicontinental marine shelly benthos during the Late Ordovician. This report presents a detailed taxonomic treatment of these brachiopods, coupled with an assessment of their implications for biostratigraphy, palaeoecology, and palaeobiogeography at continental and global scales.
Rugose corals of the Family Phillipsastreidae are abundant, diverse, and geographically widespread in the Frasnian (lower Upper Devonian) of western Canada.
Conodonts, the tiny, phosphatic, tooth-like remains of an extinct group of early vertebrates, are the most important fossil group for biostratigraphy throughout their stratigraphic range from Late Cambrian to Late Triassic. This monograph represents a benchmark study of these important zonal fossils. The detailed paleontological work not only provides a taxonomic basis for future studies on early Paleozoic conodonts but also focuses on the evolution of conodonts in the early Ordovician, a time of extraordinary adaptive radiation. The taxonomic work provides detailed descriptions and illustrations of 185 species representing 69 genera. Seven new genera and 39 new species are described. The high diversity of taxa across the platform-to-basin transect shows the biogeographic differentiation and spatial ecological partitioning of conodonts through time. The taxonomy permits the refinement to the biostratigraphic zonation within two faunal realms for British Columbia that can be correlated with schemes elsewhere in North America and also internationally.
This easy-to-follow, full-colour guide was created for instructors teaching plant structure at the high school, college, and university levels. It benefits from the experience of the authors, who in teaching plant anatomy over many years, came to realize that students learn best by preparing their own microscope slides from fresh plant samples. The exercises contained in this book have been tested, require minimal supplies and equipment, and use plants that are readily available. Detailed instructions are given for sectioning and staining of plant material. The book contains a glossary of terms, an index, and a list of suppliers of materials required. A CD-ROM of all the illustrations is inc...
This work covers geology and vegetation of the vascular plants of the Yukon Territory. It should be of interest to botanical scientists, students and travellers interested in biodiversity, and for rare and endangered species wildlife management.
This book examines the differing concepts of food security and the practicalities, policies, and resources that shape issues of food security. It begins with discussion of the nature of food security, its components, and related concepts such as self-sufficiency and global carrying capacity. It then reviews food consumption patterns in developed nations and developing regions, and discusses the complexities of determining what constitutes an adequate diet, taking into account recommended dietary allowances, variability in food composition, dietary balance and imbalance, diet and disease, nutrient deficiencies, intolerances, and food allergies. The book also reviews divergent concepts of sust...