Sheila r colla (19 risultati)

paperback. Condizione: Acceptable. Pages include notes, underlining, or highlighting.

Paperback. Condizione: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Condizione: Very Good. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Condizione: Very Good. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Trade Paperback. Condizione: Very Good -. No Jacket. (2014), 208pp, illus., maps, usual lib. markings, slight reubbing & shelfwear to cover, contents clean & unmarked. Ex-Library.

Condizione: As New. Unread copy in mint condition.

Condizione: New.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Condizione: New. pp. 208 150 Illus. (Col.).

Paperback. Condizione: Brand New. 208 pages. 9.00x6.25x0.50 inches. In Stock.

Paperback. Condizione: Brand New. 208 pages. 9.00x6.25x0.50 inches. In Stock.

Paperback. Condizione: Brand New. 208 pages. 9.00x6.25x0.50 inches. In Stock.

Paperback. Condizione: Brand New. 208 pages. 9.00x6.25x0.50 inches. In Stock.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Condizione: New. In English.

Condizione: New. pp. 208.

Paperback. Condizione: New. More than ever before, there is widespread interest in studying bumble bees and the critical role they play in our ecosystems. Bumble Bees of North America is the first comprehensive guide to North American bumble bees to be published in more than a century. Richly illustrated with color photographs, diagrams, range maps, and graphs of seasonal activity patterns, this guide allows amateur and professional naturalists to identify all 46 bumble bee species found north of Mexico and to understand their ecology and changing geographic distributions. The book draws on the latest molecular research, shows the enormous color variation within species, and guides readers through the many confusing convergences between species. It draws on a large repository of data from museum collections and presents state-of-the-art results on evolutionary relationships, distributions, and ecological roles. Illustrated keys allow identification of color morphs and social castes. A landmark publication, Bumble Bees of North America sets the standard for guides and the study of these important insects.* The best guide yet to the 46 recognized bumble bee species in North America north of Mexico* Up-to-date taxonomy includes previously unpublished results * Detailed distribution maps * Extensive keys identify the many color patterns of species.…