Download Bumble bees of North America : an identification guide by Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, PDF

By Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, Sheila R. Colla

More than ever prior to, there's frequent curiosity in learning bumble bees and the serious position they play in our ecosystems. Bumble Bees of North America is the 1st entire consultant to North American bumble bees to be released in additional than a century. Richly illustrated with colour photos, diagrams, diversity maps, and graphs of seasonal job styles, this consultant permits novice naturalists to spot all forty six bumble bee species came across north of Mexico and to appreciate their ecology and altering geographic distributions.

The publication attracts at the most recent molecular study, exhibits the big colour version inside species, and publications readers during the many complicated convergences among species. It attracts on a wide repository of knowledge from museum collections and provides state of the art effects on evolutionary relationships, distributions, and ecological roles. Illustrated keys let identity of colour morphs and social castes.

A landmark book, Bumble Bees of North America units the traditional for courses and the research of those vital insects.

  • The most sensible consultant but to the forty six famous bumble bee species in North the US north of Mexico
  • Up-to-date taxonomy contains formerly unpublished effects
  • Detailed distribution maps
  • Extensive keys determine the numerous colour styles of species

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Extra resources for Bumble bees of North America : an identification guide

Example text

800 53 Bombus caliginosus (Frison, 1927) Obscure Bumble Bee Female Bombus caliginosus. ar Male (posed) Bombus caliginosus. above: inset: ScO Identification Western coastal, medium long-tongued species. Most similar to B. vosnesenskii and B.

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40 30 20 58 Dec Oct Nov Sep Jul Aug Jun Apr May Mar Feb 0 Jan 10 Bombus impatiens Habitat Open grassy prairies and meadows. Example food plants Cirsium, Clarkia, Collinsia, Delphinium, Eriodyction, Lupinus, Penstemon, Phacelia, Salvia, Stachys, Trifolium.

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