Slow Food Summer Online Series: Biodiversity
June 15th, 2010Overview on Food Biodiversity:
When we talk about biodiversity in regards to food we are really talking about three things: 1) Biodiversity of food species (species and genetic diversity) 2) Biodiversity of crop production within a region (ecological diversity) 3) Biodiversity of types of farmers and farming methods (technical, process & ecological diversity)
1) Biodiversity of food species:
The loss of the diversity in the types of food sources we have both in general across food sources (types of vegetables and animals we eat) and within specific food types such as corn, greatly dimin- ishes our food security globally since we are depending on such a small number of food species. As naturalist Edward O. Wilson explains “…some 7,000 species of plant are known to have been used by different human societies throughout history. Today, just twenty species provide 90 percent of the world’s food” (100-Mile Diet, Smith and MacKinnon, 2007, p.7).
2) Biodiversity of crop production within a region
It has become common place now for a region to specialize in a very small number of food products for export (e.g., corn, wheat, soy, beef). This same region then imports the other foods it does not produce. While specializing in a couple food products and importing the rest might seem like a good exchange for all regions, this only works as long as each region can produce a constant amount of a product through time or that the market for such products will remain constant, and this is not always the case. Climatic, economic and political factors can all put up barriers to consistent and reliable trade in food products. The more diverse the mix of food products a region produces on it’s own, the more food secure it will be in times of crisis. Growing a more diverse mix of food products in a region also helps nurture the bioregion’s unique varieties, and can demonstrate growing techniques of food products under different growing conditions and methods.
3) Biodiversity of types of farmers and farming methods
The consolodation of small farms into large industrial farms is putting small farmers all over the world out of business. This is reducing the diversity of farming methods and preferencing industrial mono- culture over integrated polycultures (where many plants and animals are grown together symbioti- cally on the same farm). The reduction in smaller polycultural farms and the increase in industrial agriculture that depends heavily on chemical pesticides, herbicides and fertilizers, also reduces the diversity of farm ecological community members such as pollinators (bees, butterflies, ants etc), fer- tilizers (nitrogen fixing legumes), trees (water purifiers and wind protectors).
Diversity is the survival method of all life. Diversity ensures resistance to disease, pests, and climate disturbances ensuring food security for the people of a region. Our modern preoccupation with monoculture is rendering many of our diverse food sources extinct and with them sources of nutrition, taste, and cultural practices. Besides being boring in a culinary and aesthetic sense, monocultures and large scale global farming and trade systems (where countries specialize in one or two kinds of foods (e.g., corn or soy) for export) rob countries and or bioregions of the ability to weather changes in global economics (e.g., corn growing for ethanol), consumer preferences (e.g., Atkins diet) and natural weath- er patterns (e.g. bad growing years for grapes). Biodiverse farming is sustainable farming. Diversity in nutritional sources is also good for human health and generally more interesting culinary wise!
What can you do to support food and agricultural biodiversity?
1. Support local farmers by shopping at the farmers market and asking them about their unique va- rieties. Go to this website for a listing of a farmers market near you http://www.bcfarmersmarket. org/findamarket.asp
2. Purchase and plant seeds produced by Dan Jason from Saltspring Island Seeds. Dan Jason grows and saves seeds from many near extinct plants and provides a zero mile diet seed pack and tips on saving seeds and growing locally adapted varieties http://www.saltspringseeds.com/
3. Learn more by visiting the following sources below
Resources:
Sustainable Table: Biodiversity Overview http://www.sustainabletable.org/issues/bio-diversity/
This website is a gem of a find for information on sustainable agriculture. In particular this well re- searched and written overview leaves you with a solid understanding of the main concepts associ- ated with food biodiversity issues. It takes about ten minutes to read and is very clear and easy to understand.
Navdanya (Nine Crops) http://www.navdanya.org/ Great case study of a seed saving network in India working toward conservation for biodiversity. The movement and the website are facilitated by Vandana Shiva who is India’s David Suzuki for food and agricultural issues.
How to Guide to Basic Seed Saving: http://www.seedsave.org/issi/issi_904.html
Expert Village Seed saving video how to: http://www.youtube.com/watch?v=tyUcOEZBP_s&feature=channel Video on using old seeds http://www.youtube.com/watch?v=sy5R-8MIZu8
