Here's Professor Laurence Packer from 91��ɫ’s Department of Biology in the on what you can do to help the world’s bees in your backyard:

Packer travels the world tracking many of the 19,500 described species of wild bees. While his perspective is international, Packer’s backyard is a great example of a bee-friendly space and is featured in the video. He is also the author of . All proceeds form his book will be directed toward bee conservation research.

In 2010, Packer was featured on CBC’s The Nature of Things, hosted by David Suzuki. The episode, “”, highlights dramatic declines in North America’s wild bee and honey bee populations, and explores what the disappearance and decline of these insects tells us about larger ecological problems. The episode is also available for download on. Packer’s segment runs from the 3:30 mark through to 6:30.

PhD student Jason Gibbs, who works in Packer’s laboratory and has collaborated with him on research publications, also recently made national news headlines by documenting 19 new bee species, one of which he discovered during his commute from downtown Toronto to 91��ɫ.

To read more about their work, visit Packer’s Website or search for past stories in the Research News archive using the and tags.

Packer's research is funded by the (NSERC) and the (CFI).

By Elizabeth Monier-Williams, research communications officer.

Video production by Elizabeth Monier-Williams, research communications officer, Elizabeth Teodorini, alumni communications manager, and Robert Denault and Perry Walker in the Learning Technology Services unit.

The post Video: Professor Laurence Packer on why and how to make your garden bee-friendly appeared first on Research & Innovation.

Gibbs’ expansive study will help scientists track bee diversity, understand pollination biology and study the evolution of social behaviour in insects. It is also much anticipated by bee taxonomists who, like Gibbs, painstakingly examine the anatomy (morphology) of bees to distinguish one type of bee from another.

Bees are responsible for pollinating many wildflowers and a large proportion of agricultural crops. As much as one of every three bites of food that humans eat, including some meat products, depends on the pollination services of bees. Sweat bees are common visitors to a wide range of plants, including fruit and vegetable flowers in Toronto gardens.

Right: A new species of bee, Lasioglossum Ephialtum, discovered by Jason Gibbs. Photo by Jason Gibbs.

Sweat bees − named for their attraction to perspiration − can be smaller than four millimetres in length, often have metallic markings, and make up one-third to one-half of bees collected in biodiversity surveys in North America. Complete species descriptions of 84 metallic sweat bees in Canada are included in Gibbs’ monumental study, “Revision of the metallic species of Lasioglossum (Dialictus) in Canada.” It was published today by the peer-reviewed journal as a single issue.

Despite their numbers and their importance as pollinators, sweat bees remain among the most challenging bees to identify to species, perhaps because they evolved so rapidly when they first appeared about 20-million years ago. Gibbs’ research significantly improves upon all other available tools for the identification of these bees.

Left: Jason Gibbs

“These bees are morphologically monotonous. They are a nightmare to identify to species because their physical characteristics – their morphologies – are so similar among species. No one has been able to identify these bees until now even though they make up so many of the bees we collect,” says Gibbs. “It’s important to identify these species, because if we don’t know what bees we have, we can’t know what bees we’re losing.”

Gibbs examined tens of thousands of individual bees over about four years, from his own and others’ collections as well as historical collections housed in museums. To identify bees to species, he first sorted them using morphological study, then tested his assessments using DNA sequences generated at the at the , which assigns “barcodes” to species based on their DNA. Finally, he carefully re-examined the bees’ physical characteristics to draw even finer distinctions between the bees and identify them to species.

Among the 19 new species of sweat bee identified by Gibbs is one he collected on his commute from Toronto to 91��ɫ. When he arrived at his 91��ɫ lab and examined it, he knew he had found a new species, never before identified by science but, as it turns out, quite common in Toronto and throughout eastern Canada and the United States. He also identified and described 18 other species from Canada that are new to science, including a cuckoo bee. Like a cuckoo bird, it doesn’t build a nest or collect food, but it has big mandibles for fighting. This cuckoo sweat bee is believed to invade the nest of another sweat bee species to lay its eggs on the pollen and nectar collected by its host.

Gibbs received the 2010 Dissertation Prize from 91��ɫ for the manuscript that led to this published study. A postdoctoral researcher in 91��ɫ Professor Laurence Packer’s bee lab, he will continue his research this fall at . He is working on similar bee studies for the Eastern United States and Mexico. For more information, visit Jason Gibbs’ Web page.

This research was supported through funding to the from , and other sponsors.

By Janice Walls, media relations coordinator. Republished courtesy of YFile– 91��ɫ’s daily e-bulletin.

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