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Claire Kremen: Honey Bee Pollination Crisis

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Commonwealth Club of California

Commonwealth Club

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Partner:: Commonwealth Club
Location:: The Commonwealth Club of California
San Francisco, CA
Event Date:: 01.13.09
Speaker:: Claire Kremen
Tags:: bee; biodiversity; population; nature conservancy; conservation; biology

Summary: Monoculture farming leaves us highly dependent on honey bees, whose pollination affects 75 percent of fruits and vegetables and 30 percent of all food production.

However, managed hives are being wiped out by colony collapse disorder at an alarming rate.

Kremen will discuss how wild bees can boost the effectiveness of managed hives and play a critical role in pollinating the crops that keep California's economy humming - The Commonwealth Club of California

Bio

Claire Kremen

Claire Kremen is a conservation biologist whose applied research advances the fields of ecology, biodiversity, and agriculture. As a leader of a conservation planning initiative in Madagascar, Kremen has used adaptive management and predictive mapping to design and establish protected and multiple-use areas in Masoala National Park, Madagascar’s largest nature reserve. Her current work in Madagascar includes forecasting deforestation and its impact on species distribution and development of a web-based repository that will provide researchers with up-to-date biodiversity data and analytical tools needed for conservation planning and monitoring. In other research in the U.S., at the intersection of agriculture and biodiversity, Kremen explores the behavior of diverse native pollinators (primarily bees) and the environments that sustain them. By analyzing the behavior patterns of bees, Kremen investigates an often overlooked but critical component of the global food web, as more than half of all flowering agricultural crops involve natural pollinators. She measures several key variables, including geographic distribution of natural habitats, the diversity of insect pollinators, and the delivery of pollination services. Claire Kremen received a B.Sc. (1982) from Stanford University and a Ph.D. (1987) from Duke University. She is an assistant professor in the Department of Environmental Science, Policy, and Management at the University of California, Berkeley. From 2001 to 2005, she was an assistant professor in the Department of Ecology and Evolutionary Biology at Princeton University.

Chapters

: Watch Full Program

01 hr 01 min 53 sec

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01.: Introduction

02 min 10 sec

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02.: What if There Were No Pollinators?

03 min 34 sec

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03.: Extreme Scenario

02 min 19 sec

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04.: Who the Pollinators Are

05 min 21 sec

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05.: Managing Pollination

02 min 42 sec

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06.: Problem: Decline in Honey Bee Colonies Since 1987

01 min 42 sec

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07.: Since 2006- Colony Collapse Disorder

03 min 04 sec

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08.: Wild Bee Happenings

02 min 35 sec

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09.: Not Enough Wild Bees

04 min 57 sec

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10.: Different Landscapes and Bees

03 min 35 sec

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11.: What we Can do- Rediversifying Landscapes

03 min 30 sec

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12.: Helping Out- Having Something in Bloom at All Times

05 min 56 sec

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13.: Q1: Colony Collapse in Organic Beekeeping

01 min 45 sec

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14.: Q2: Severity of Colony Collapse

02 min 45 sec

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15.: Q3: Viability of Honey Bee Colonies Along CA Coast

00 min 33 sec

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16.: Q4: Can Bees Come From Florida to CA on Plane?

00 min 32 sec

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17.: Q5: What Individuals Can do to Promote Diversity

00 min 38 sec

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18.: Q6: Bee Nesting

02 min 13 sec

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19.: Q7: Life Cycles, Variations Between Different Bee Species

02 min 01 sec

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20.: Q8: Genetically Modified Organisms

00 min 36 sec

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21.: Q9: CA Water Crisis and Bees

01 min 08 sec

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22.: Q10: Most Efficient Pollinators

02 min 13 sec

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23.: Q11: Outreach Programs for Farmers and Beekeepers

01 min 08 sec

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24.: Q12: Pesticides Impacting Bee Populations

01 min 04 sec

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25.: Q13: How Wireless Communication, Global Warming Affects Bees

01 min 36 sec

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26.: Q14: Level of Optimism in Convincing Big Ag. Farms to Biodiversify

01 min 55 sec

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: Watch Full Program

01 hr 01 min 53 sec

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Imagining a World Without Pollinators

03 min 34 sec

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Claire Kremen says we wouldn't go hungry if pollinators became extinct, but cautions that our diets would become "impoverished" without fruits and nuts like apples, mangoes, and almonds.
Claire Kremen on the Role of Bees in the Ecosystem

04 min 15 sec

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Claire Kremen explains many groups of pollinators, but explains why bees are "chief among them."

By both collecting nectar and pollen, she says bees are crucial to wild plant populations and crops.
Who is Liable for Drop in Honeybee Population?

04 min 57 sec

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Claire Kremen describes decades of decline in US honey bee populations, attributing the responsibility to dangerous mites, toxins, and poor trends in beekeeping.
Watch Full Program

01 hr 01 min 53 sec

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ZOOM IN: Learn more with related books and additional materials.

Encyclopædia Britannica Article

pollination: Transfer of pollen grains in seed plants from the stamens, where they form, to the pistil. Pollination is required for fertilization and the production of seeds. On the surface of the pistil the pollen grains germinate (see germination) and form pollen tubes that grow downward toward the ovules. During fertilization, a sperm cell in a pollen tube fuses with the egg cell of an ovule, giving rise to the plant embryo. The ovule then grows into a seed. Since the pollen-bearing parts of the stamens are rarely in direct contact with the pistil, plants commonly rely on external agents for pollen transport. Insects (especially bees) and wind are the most important pollinators; other agents include birds and a few mammals (notably certain bats). Water transport of pollen is rare. An egg may be fertilized by self-pollination (when the sperm comes from pollen produced by the same flower or by another flower on the same plant) or by cross-pollination (when the sperm comes from the pollen of a different plant).; pollination on britannica.com