Explain how physical factors influence the distribution of biodiversity shown (10 marks) There are several factors influencing biodiversity including; isolation, age, altitudinal range, productivity The most bio diverse areas are between the tropic of cancer and the tropic of Capricorn. The Philippines, Indonesia and Malaysia have over 3000 plant species per 10000 km2 because they’re isolated as a series of islands which means there are more endemic species on the island as species develop in a more distinct way. The location within the tropics combined with the old age of the countries mean higher biodiversity as the species have more time to develop and evolve. Being within the tropics means there are fewer physical constraints such as light and water which are all in abundance due to rainforest conditions. The Himalayas have over 4000 plant species per 10000 km2 due to the large altitudinal range which means more climatic zones are involved creating more diverse habitats such as rock faces, steep hills.
China, and as people tend to get more disposable income, in terms of food they will tend to consume more meat. This means a lot more wheat and grain is demanded in order to feed these animals, this causes the demand curve to shift to the right causing prices to rise. As indicated in the diagram on the right where P1 moves up to P2 as a result of a shift in demand. Another reason for an increase in the prices of grain and wheat is a rising demand for bio-fuels of which grain and corn are vital components. This combined with the current fuel climate and oil prices result in a lot of demand for bio-fuels which is why 20% of American grown corn goes on bio-fuels.
Houle (2007) found that trees flowered 2-6 days earlier in 2000 than they did in 1900, indicating that global warming is impacting the phenology of plants. This can affect plants by altering their growing seasons, which may have unknown impacts on the plants. Increased temperatures linked to global warming have also been associated with decreased frost resistance, which can lead to an increased amount of damage to trees’ buds (Bannister et al. 2005). Studying these factors is important because it will allow us to understand and predict the changes that will occur due to the evolving climate and
Answer: The biosphere is the part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life (American Online Dictionary). The geosphere is where humans can survive and it is the upper part of the planet's continental crust and the portion of the solid earth that provides food and natural resources. 2. Based on this week’s required readings, what are the main causes of threats to the biosphere? Answer: The biosphere is under stressed and the contributing factor is the overuse of resources that are not renewable due to significant growth in population, consumption of resources and technology.
Overpopulation is a current environmental issue “where an organism's numbers exceed the carrying capacity of its habitat. In common parlance, the term usually refers to the relationship between the human population and its environment, the Earth.” IT is causing deforestation and starvations but we have to grow. Our population growth rate is increasing at a steady rate. We cant really lower the growth rate but we can build more cities where many people can live. 26.
The conclusive data shows that the buckthorn shrub was affecting the soil properties by adding higher concentrations of elements in each of the three wooded areas sampled. The buckthorn shrub is like a sponge to the soils minerals sucking every mineral and drop of water it needs to survive and flourish, which leaves the soil highly concentrated, making the competition for soil minerals and water extremely high between native shrubs and the European buckthorn. Since the buckthorn is so physically dominant, many native shrubs cannot adapt to an environment shared
Often having 100 or more moles increases your risk of N.M. Another factor is gender, men are more likely to develop N.M. over females. Your age too can play a role and the risk increases for people over 60. N.M. can often develop in people that have a weak immune system. This can be from taking a specific medication or having an organ transplant. There is also a rare disease called Xeroderma Pigmentosum.
According to California Invasive Plant Council for Spring 2009 says that weeds alone cost California $82 million a year and that also suggest that invasive species has cost the United States $138 billion. That is a lot of money and a lot of product that was lost because of the contamination of the crops and grapes. The glassy-winged sharpshooter (GWSS) feeds off the stems and happen to be at least 100,000 -150,000 insects per tree and they affect over 130 different plants. When feeding off the stems, the stem carry so much fluid that when the GWSS feed they consume large amounts to have energy and to grow. After filtering the essential nutrient from the stem it releases a small droplet that is later visible when it is
I have leaned that if your population is to high your people will feel crowded and there will be a food shortage but more people equals more taxes. So I had to figure out a way to balance the rising population but also Battle over population. The answer was (this is the shocker…) industrialization of farmlands. ( Again does this sound familiar?). Its no surprise that China is one of the most Industrialistic country with over 1, 330, 044, 544 people ( as of July 2008 Source: www.google.com ) which in my scientific analysis says nearly 700, 000, 000 are in the work force and within nearly 100, 000, 000 or less (much, much less) are in agriculture or livestock.
There are many different reasons why extinction happens, some of these cause are natural but the majority of them are due to human activity such as deforestation and an increased amount of fossil fuels being used which then leads to global warming. Extinction has increased 100,000 times more than before humans were on earth. There currently is a mass extinction of species since the extinction of the dinosaurs 65 million years ago, some of the main causes of this are habitat destruction, invasive animals, population growth, pollution and over exploitation. Biodiversity is the variety of plants and animal life in the world or in a particular habitat which are affected negatively due to some activities that humans are causing such as climate change. My first piece of evidence in favour of human activity leading to extinction is ‘humans are driving animals to extinction faster than they can evolve ‘written by Juliette Jowit, (on Sunday the 7th of March 2010), the guardian newspaper, 15/01/15.