Wednesday, November 12, 2014

Station Fire






 Paul Reilly
Station Fire Project

Hominins emerged 5-7 million years ago, and represent over 20 species. Our genus (Homo) appeared approximately 2.4 mya, and the hunting and gathering (foraging) way of life sustained our genus for the vast majority of time (99.6%). Studies estimate that (73%) of foraging societies derive between 35-44% of sustenance from plant foods (Cordain et al. 2005). Clearly, the importance of foraged plant foods in meeting the nutritional requirements of humans is undeniable.

Around 12,000 years ago, an explosion of agricultural practices worldwide, known as the Neolithic Revolution (Childe 1936) coincides with a dramatic increase in artifact remains which is interpreted as the beginning of a continuous period of population growth (Bocquet-Appeal 2011). A shift from foraging to food production occurred nearly instantaneously, and with this shift came numerous physical and social changes. 

The chronic degenerative diseases deemed “the diseases of civilization” are among the leading causes of death of modern people (CDC 2010).  These conditions, including coronary heart disease, obesity, hypertension, type 2 diabetes, cancers, autoimmune disease, and osteoporosis are rare or absent in pre-agricultural (and non-westernized) societies (Carrera-Basto et al. 2011). The so called diseases-of-civilization arose in part due to discordance between the genome and lifestyle (Cordain 2000). Today’s native populations have epidemic levels of health problems, and every indicator shows native populations are unhealthier than the general population (IHS 1996). As an effort to mitigate risk of disease, there are a number of initiatives espousing the benefits of incorporating foraged food into the diet (CDC: TFP). 

The climate and resource availability of California supported a number of different indigenous peoples since prehistory. Since western contact, the overall health of California’s native people has been steadily declining (IHS 1996). Incorporating a lifestyle which promotes foraging is more important now than any other time in history. Resources for indigenous people are limited statewide, and loss of resources is occurring at a rapid pace.

For the purpose of this project, I wanted to examine how the 2009 station fire of California, the largest in Californian history, could impact the foraging capacity of California’s natives. I chose to look at the fire boundaries in comparison to reservations, overall burn length, the overall change of basal vegetation, and percent change of canopy cover.

Overall, the intensity of the burn greatly affected the vegetation composition within the boundaries of the 2009 Station fire. Although no federally recognized reservations exist with the boundary, indigenous people such as the Serrano, would have utilized the area heavily for foraging.

Fire, especially catastrophic fire, such as the Station fire, generally allow for the spread of invasive plants. In looking at the map, the overall change in composition of plants is striking.  The native plant community at the Station fire site is now at exponentially increased risk for invasion from non-native plants. Hopefully, indigenous communities in California will work with local, state, and federal agencies to restore the Station fire area to promote native ecologies and potential for foraging traditional food plants.


Literature Cited
Bocquet-Appel, J-P. 2011. When the world’s population took off: The springboard of the Neolithic demographic transition. Science 333, 560-561.
Carrera-Bastos et al. 2011. The western diet and lifestyle and diseases of civilization. Researc Reports in Clinical Cardiology. 2:15-35
Center for Disease Control : Traditional Foods Project. 2014. Diabetes Public Health Resource. <Accessed 11/12/2014 http://www.cdc.gov/diabetes/projects/ndwp/traditional-foods.htm>
Childe G. 1936. Man Makes Himself. Oxford University Press. Oxford, England.
Cordain et al., Origins and evolution of the Western diet: health implications for the 21st century. American Journal of Clinical Nutrition 81, 341-354 (2005).
Cordain et al., Plant-animal subsistence ratios and macronutrient energy estimations in worldwide hunter-gatherer diets. American Journal of Clinical Nutrition 71, 682-692 (2000).
Indian Health Service. Regional differences in Indian health. Rockville, MD: US Department of Health and Human Services, 1996.