Annotated Bibliography: Chaparral
Resource 1: Literature Review Fenn ME, Allen EB, Weiss SB, Jovan S, Geiser LH, Tonnesen GS, Johnson RF, Rao LE, Gimeno BS, Juan F, Meixner T, and Bytnerowicz A. “Nitrogen critical loads and management alternatives for N-impacted ecosystems in California.” Journal of Environmental Management 91(12): 2404-2423.
This paper reveals the relationship between critical loads of nitrogen on seven most common types of vegetation (annual grassland, coastal sage scrub, desert scrub, chaparral, pinyon-juniper woodland, oak woodlands, and mixed conifer forest) present in California. According to this paper, critical loads is the threshold which substantial negative impacts do not occur. This paper reports that for nitrogen, studies shown that 35% of the land areas with these vegetation types exceeded the critical load. In order to determine the area with excess nitrogen, the studies used multiple methods, such as lichens because it is nitrogen-sensitive and vegetation that was nitrogen deficient. Consequently, vegetation types experience several significant changes and chaparral is not an exception. This review educates the
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Cavitation has a decreasing impact on plants’ ability to transport water from the soil to their leaves. The studies report that plants in chaparral vegetation are more susceptible to cavitation during the wet season. The studies also found that the location (for example, temperature, precipitation rates or distance to the coast) of chaparral have impacts on cavitation resistance. In addition, the studies hypothesize and found that plants in chaparral habitats with greater precipitation have the tendency to become less resistant to cavitation, especially in the beginning of summer. This paper is relevant to chaparral because it explores the relationship between cavitation in chaparral vegetation and its effects on the overall
Drought in California has extremely negative impact on ecosystems, and some of the animals suffer extreme damage. O’Connor, L. (2014), provided list of animals most threatened by dry conditions
Andreou, E., Didaskalou, E., & Vlachou, A. (2008). Outcomes of a curriculum-based anti-bullying intervention program on students' attitudes and behavior. Emotional & Behavioral Difficulties, 13(4), 23.5.
Since the settlement of the Lake Tahoe Basin people have deforested mountain sides, and killed almost all natural life within the waters. Just as the Lake Tahoe area has felt the
1 The U.S. Bureau of Land Management has stepped in to provide restorative practices upon 500,000 acres of heavily degraded public grasslands. This land is suffering from severe soil erosion as well as degradation due to overgrazing. The suppression of natural fires has caused shrubs and invasive weeds to encroach upon the grasslands. A full scale assessment will take place on this land before restoration efforts begin. The first thing that would need to be assessed is the soil, for it is eroding and holding little nutrient value. Samples would be taken of this soil from various parts of the grasslands including the eroded gullies. Each soil sample would be taken from at least 1 foot below the surface, to test for carbon richness below the topsoil. These would then be tested for texture, density, water retention, and chemical composition. Typically, powerful, healthy soil will contain amounts of both Nitrogen and Phosphorous, which are essential nutrients in sustainable plant growth. These samples would also be tested for any build-up of salts, something known as soil salinization. Unhealthy, salinized soil is created over years of over-hydrating and deep plowing. Excess water will suffocate root systems of once-healthy crops, and salinized soils will reduce crop output up to 20% (Withgott &Brennan, 2011). The next assessment would be in the shrubs and invasive weed species on the land. Knowing the volume and location of these plants gives way to a better understanding of
As a historically semi-arid environment, California has also suffered heavily from several environmental impacts as a result of the current drought conditions. The first of these is on its forests. The US Forest Service estimates that 12 million trees have died in the past year due to drought; this combined with the drying of forest floor material greatly increases the flammability of the landscape. The result of this is the numerous devastating wildfires that have swept through the state throughout 2015, costing not only wildlife and habitat but also human property (CBS News, 2015) (Lustgarten, et al., 2015) (Google, 2015). Aside from wildfires, the drought and associated loss of habitat is said to be having a negative effect on both flora and fauna due to their contribution to the spread of West Nile Virus, whilst also threatening populations of geese, ducks, salmon and Joshua trees (Lustgarten, et al., 2015) (Beaudry, 2015). Finally, with groundwater contributing up to 50% of stream flow in drought, there is a worry that over usage near the coast could result in irreversible salinization through the drawing in of salt water (USGS, 2016) (Kasler & Reese, 2015).
Brooks (EPA), J. Heinrichs (UW), S. McMillin (California Department of Fish and Wildlife) and C. Wilsey (UW). Landuse change scenarios were developed by Jim Thorne and the Information Center for the Environment at UC Davis. The information in this document has been funded in part by the U.S. Environmental Protection Agency. It has been subjected to review by the National Health and Environmental Effects Research Laboratory’s Western Ecology Division and approved for publication. Approval does not signify that the contents reflect the views of the Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for
The goal of restoration is to return the mixed conifer forest to the landscape in order to restore wildlife habitat and connectivity, as well as reduce fuel load (USDA Forest Service). Time and money can be saved if replanting efforts could be focused to the areas with the highest burn severity and most suitable growing conditions. Replanting by the Tuolumne River Trust has occurred in Ackerson, Buck Meadows, Evergreen, Saw Mill, Tawonga Entrance, and Tawonga North areas, but due to a multitude of reasons many sapling were unable to survive. Insect infestation and drought in California caused by Climate Change have only exacerbated circumstances and advanced forest instability. In order to succeed a forest needs to be able to be able to adapt to its changing climate, but the stressed Stanislaus National Forests are currently growing less
California’s continuous drought not only affects California, but essentially impacts the entire food system. Could you imagine an entire state unable to contribute to the growing demands of a thriving economy? As California enters its fifth year of drought the consequences of an ever depleting natural resource, water, continues to negatively impact landscape plants, agricultural production, wildlife, and the economy. The lack of water in California has the potential to have a devastating effect on an ever thriving economy.
Because most greenhouse gases would remain in the atmosphere for a long period of time, the temperature of the earth will be continuously rising. If global heat-trapping emissions proceed at a medium to high rate, temperatures in California are expected to rise 4.7 to 10.5°F by the end of the century1. With the rise of temperature, the climate of California would also be changed. California has large area of forest and farmland, hundreds of miles of coastline, large amount of snowpack, and other natural wonders. And these special treasures of nature are especially at risk2. So it is very necessary to understand the strategies of California to combat climate change.
Compton, W.M., Conway, K.P., Stinson, F.S., Colliver, J.D., & Grant, B.F... (2012) Prevalence correlates, and comorbidity :Comorbidity addiction and other mental illness. National Institute on Drug Abuse.Choice Reviews Online. 20-24.
“Dormancy is a period in an organism's life cycle when growth, development, and (in animals) physical activity are temporarily stopped” (“Dormancy”). Some native plants have learned to adapt to grow a mixture of both short and long roots, so they can absorb moisture from both depths. After the winter season, the deeper roots reach down to absorb the water that has soaked into the deeper ground. Once the water lower in the ground has been absorbed into the tree, the plant uses its shallow roots to begin absorbing the moisture at the surface (Schwinning, Susan. “Sensitivity”). Exotic plants in a new area can cause irregular forest fires, floods, and other unwanted natural disturbances. To prevent these disturbances from occurring, Exotic Plant Management teams are trying to remove unnecessary plants that are only hurting the soil. The Exotic Plants team gives the people taking care of the plants two recommendations. First, they recommended to not worry as much about the bigger exotic plants and try to eliminate the weeds and exotic grasses. Second, is to put as much effort into restoring the native plants that are struggling through the droughts (Daw). Cold season shrubs are one of the few native plants that were not affected by the change in the climate
The main purpose of this article is to examine various research on the etiology of stuttering. The experimental research explored various brain circuitries involved, specifically the the basal ganglia. Furthermore, the meta-analysis discussed neuroimaging, lesion, pharmacological, and genetic studies on the neural circuitries connected to persistent developmental stuttering and acquired neurogenic stuttering.
Eilers, J., Harris, D., Henry, K., & Johnson, L. A. (2014). Evidenced-based interventions for cancer treatment-related mucositis: Putting evidence into practice. Clinical Journal of Oncology Nursing, 18(6), 80-96. Retrieved from http://dx.doi.org.proxy.chamberlain.edu:8080/10.1188/14.CJON.S3.80-96
Willcox, C. and Willcox, B., 2009, ‘FOXO3A Genotype and Human Longevity: The New APOE?’ Japanese Journal of Anti-Aging Medicine, vol 5, no.6, pp.804-809.
The California Chaparral is an example of a chaparral biome, and is located in Western North America along the coast of California. This chaparral is a mix of grasslands, woodlands, and mountains. The mountains in the California Chaparral are steeply sloped and are as high as 5,000 feet above the sea level. There are two main season climates in this area which include: rainy and wet, and dry and hot. The climates are one of the main factors that determine what plants and animals are found in the California Chaparral. There is a variety of different animals and approximately 2,000 different kinds of plants that are found in this area that have all learned to adapt to the dry and arid climate of the Chaparral.