Each volume includes line drawings of each plant species for identification purposes.

Each volume includes line drawings of each plant species for identification purposes.

Each volume includes line drawings of each plant species for identification purposes.

Each volume includes line drawings of each plant species for identification purposes.

Each volume includes line drawings of each plant species for identification purposes.

Each volume includes line drawings of each plant species for identification purposes.

Butterflies are found everywhere in British Columbia. Written for butterfly watchers, butterfly gardeners, naturalists, and biologists, Butterflies of British Columbia will provide years of enjoyment for the butterfly enthusiast. The Butterflies of British Columbia � provides the most complete coverage of species and subspecies of any North American regional or continental butterfly book � covers 187 species and 264 subspecies of butterflies, as well as 9 additional hypothetical species � provides descriptions of identifying features, immature stages, larval foodplants, biology and life history, range and habitat, and conservation status for each species � describes 11 new subspecies � includes introductory chapters covering the history, zoogeography, conservation, morphology, ecology, and biology of butterflies in BC and adjacent areas � is lavishly illustrated with over 1,200 colour photographs and over 200 distribution maps � includes a glossary of butterfly terms and a bibliography of over 750 citations.

Describes a ranking system used to evaluate the potential invasiveness and impacts of 113 non-native plants to natural areas in Alaska. Species are ranked by a series of questions in four broad categories: ecosystem impacts, biological attributes, distribution, and control measures. Also included is a climate screening procedure to evaluate the potential for establishment in three ecogeographic regions of Alaska [Juneau, Fairbanks, Nome].

This guidebook shows how the distribution of common forest plants changes due to variations in climate, terrain, site, & soil conditions across the northern British Columbia wet-belt & subalpine zones. The guide covers over 120 plant species or species groups that occur in the northern montane spruce and the northern interior cedar-hemlock biogeoclimatic zones. For each species, an outline of species ecological information is presented along with a graph showing the predominant moisture & nutrient regimes where it will most likely occur. The information is arranged by category of plant: trees; shrubs; herbs, ferns, & dwarf shrubs; grasses & sedges; and mosses, liverworts, & lichens. The appendix includes identification keys to the common shrubs & herbs of the Prince George Forest Region and an index of common & scientific names.