...Lemurs in Madagascar: Surviving on an Island of Change Transcript Speakers: Ian Tattersall, Jonah Ratsimbazafy, Michelle Sauther, Frank Cuozzo (Rain trickling, lemur sounds: squeaking and calling) (Music playing in background) IAN TATTERSALL: I think everybody who is involved with lemurs is concerned for the future. We’re in a finite island that cannot infinitely be exploited and ravaged. And if present trends continue, the outlook for any of the natural habitat or any of the lemurs is fairly poor. (Birds chirping) Lemurs are members of the order primates, that is to say the large group of mammals to which human beings also belong. And they’d found they are uniquely in Madagascar and on a couple of the adjacent islands of the Comoros group. (Music playing in background) An evolutionary radiation is the diversification of different species from the same ancestor and once a new kind of organism like a primate comes into a new environment as happened in Madagascar about sixty million years ago; there are many, many different ways in which that environment can be exploited. It’s very hard to say exactly how many species of lemur there are because new species are being described all of the time. But in general terms, there now looks to be about thirty to thirty-five species of lemurs and it shows us just what the potential of primates is to occupy an enormous range of different habitats. (Music playing in background) Habitat destruction takes place...
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...Associate Level Material Lemurs in Madagascar Assignment View the “Lemurs in Madagascar – Surviving on an Island of Change” video. Using the information found in this video, and in Ch. 5 and 6 of Visualizing Environmental Science, answer the following questions in 25 to 100 words each. 1. What are Madagascar’s biomes? Discuss the major features of at least one of these biomes. Use the textbook for biome examples. Madagascar’s biomes are grassland and the temperate (or tropical) rain forest. As described in our reading, the temperate rain forest has rain fall that exceeds 50 inches per year, has coastal fog, and has mild winters and cool summers. The forest floor is covered with debris from the trees that provide cover like a canopy or ceiling. Vegetation in the rain forest usually grows high off of the ground because of the nutrient-poor soil, limited sunlight, and small amount of rain that reaches the ground. 2. What changes happening in Madagascar are posing challenges for lemurs? Give details about the sources, time scale, and types of change. Climate, logging and hunting are changes to the environment that pose challenges for lemurs. Loggers move into the area and remove trees that provide housing and food for these mammals. There are many lemur species that are negatively affected by these changes. One specific species of lemur (bamboo lemur) identified in the video could become extinct. Their diet is so specific that a reduction...
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...Running Head: CONSERVATION VS PRESERVATION Conservation vs. Preservation Jose E. Ortiz December 16, 2012 SCI/275 Joanna Gress In the era of climate change and global warming, there is an increased interest in land management techniques. Some experts are proponents of the preservation theory, which sets aside areas of natural resources in their pristine state, without intrusion or interference of man. Other experts favor conservation practices, which seek to find a happy medium between responsible land management and protection of natural resources while permitting humans to enjoy that land in a variety of ways. The desire to preserve areas in their natural state can be driven by a desire to maintain refuges for animals and plants free of human interference and to keep species from the threat of extinction. With the advent of the last twenty years of the housing boom, many natural areas have disappeared. The point of preservationists is that there need to be certain aspects of the natural population that are never disturbed. The disagreement among naturalists arises from the methods of protection versus the actual concept of protection. Some believe conservation of resources provides the best of all worlds. Individuals can, for example, live in a subdivision, but the subdivision would be placed adjacent to natural forests, wetlands, or other natural areas of importance to the environment. Within these wetlands and forests...
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...Checkpoint: Population Size There are four factors which create changes in population sizes on a global scale; the birth rate, the death rate, migration, changes in environment. Any changes which create a global scare normally pertain to birth and death rates throughout the world. The factors which can affect the birth rate scale are family planning (including contraception), education, as well as religious and cultural views interfering with the amount of births a single family is allowed to have (such as China). The factors which can affect the death rate are a lack of education (inability to adapt and survive), diseases (with lack of medical care), and crime (murder, suicide, and accidents). Migration can be due to many different reasons ranging from unstable environments politically, economically, or within the environment in general. And each of those factors can have factors of their own, whether it’s a personal at home situation or a more wide spread situation with the surrounding area. Typically birth rates rise faster than death rates. Honestly this can be attributed to modern science, our innate ability to adapt to changing environmental situations, and that we are typically living longer than our ancestors have. However, when pertaining to the nutria, their population increases dramatically because their birth rate sky rockets compared to their death rate. According to the video, they are extremely over populated. The nutria’s increasing population can be...
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...SCI275 Week 4 Checkpoint The four factors that affect population size include: Birth rate: The number of births of a sample size (per1000 people per year). Birth rates are affected by many factors such as, the ability to receive health care, family planning, the use of availability of contraceptives, governmental policies, economic growth, education, social and cultural views, and the use of abortion. Death rate: The number of deaths of a sample (per 1000 people a year). Death rates are caused by the lack of availability of food and water, lack of education, disease, lack of medical care, suicide, car accidents, crime, war, and government entities. Immigration – People entering a country for various reasons. Pull Factors – A country offering incentives for immigration, education, social and economic factors. Emigration – People leaving a country for various reasons. Push Factors - Social and economic factors, natural hazard, education opportunities, political instability, war, and others. The factors that affect the population size in the video are birth rate and death rate. The female Nutria has the ability to give birth to up to 40 young in three years, with the young having the ability to reproduce at six months in age. This would give them the ability to flourish and build a very big population. The death rate would be regards to the vegetation population that the Nutria use as a food source. The Nutria have the capacity, and are, jeopardizing the vegetation...
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...Atmospheric Issues Morgan Luttrell SCI/275 April 12, 2015 Claudia Listopad, Ph. D. Hello city of Sparksville, I know you are all wondering what is going to be done about the outsourcing of jobs from the area. Without those jobs to help with the economy, the townspeople are suffering. That is why we have decided to look into some opportunities for Sparksville. Those opportunities include bringing a warehouse distributor business, a hybrid car business or an oil refinery to help the citizens of Sparksville with employment issues. Each of these options have effects on the townspeople, the environment, and the economy. Each of the businesses would have an impact on water and air pollution, which impacts the health of the residents, as well as the surrounding environment. The warehouse company would bring in more truck traffic and emissions to Sparksville. Emissions are a nonpoint source of pollution into the air, and also leads to the water from the acid rain from the effects of the emissions. Although the warehouse is small in nature, it would still have an effect on the water pollution because of sewage. Sewage would be a point source pollutant because it is coming from one particular area, similar to the car company. The hybrid car manufacturing company would also lead to more air pollution because of the trucks or train that would bring in parts, as well as emissions from the added traffic. The traffic would be a nonpoint source pollutant, similar to warehouse truck...
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...There are many things that can have an impact on the global population, not just births and deaths. There are other things that can have an impact as well on the local populations such as local births, deaths, emigrants and the immigrants in the population. In the video Louisiana has an issue with nutria because they are immigrating to the area and have been since the 1930’s. As the video states, nutria is not native to the Louisiana and was causing an environmental mess. This of course is coupled with the massive nutria breeding. In one year female nutria can give birth to 40 babies, when those offspring are six months old they are ready to breed themselves, and therefore the population will just keep growing. In Louisiana once the land is depleted of all of their food sources, they will either be forced to migrate or they will begin to die off and face a population crash. Although when we are speaking of the world’s population, we have a rapid increase that should be a concern to the United States because we have one of the highest population growth rates in the world. This is in despite of the United States fertility rates being low, we are still projected to have an estimated 420 million people by the year 2050. It is also projected by population experts that in the year 2050 the democratic republic of Congo and Ethiopia will replace that of Russia and Japan in the top ten. But in the overall Russia and Japan have low fertility rates, compared to other countries. Congo...
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...Energy Resources Plan All of us use energy every day for entertainment, cooking, transportation, lighting, heating and cooling homes, manufacturing, etc. We consume a lot of energy. The United States consumes about one fourth of the world's energy resources. When energy is produced from non-renewable fuels, to heat our homes or power our cars for example, pollutants are released into the air contaminating the air we breathe and water too. The more energy we use or miles we drive in our cars, the more energy power plants must produce or gasoline our cars burn, releasing more pollutants into the air. Renewable energy alternatives have many challenges, and managing these resources has become a nightmare. Renewable alternatives such as wind, solar, biofuels, and hydroelectric have become very popular as an alternative to nonrenewable energy resources. The first renewable energy alternative is wind energy. Because wind will always be around, the use of wind turbines is an energy alternative. A big challenge is that we cannot control the wind; some days it is strong and other days it is calm. Solar energy is another energy alternative. Photovoltaic solar electricity is the technology that is most cost effective to consumers in the United States. The greatest challenge to solar energy is that for 12 hours a day we do not have any sunlight, and there are days when it is to cloudy. Biofuels are derived from biomass (organic material) plants and animal waste. With today’s...
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...SCI 275 Course Calendar |Monday |Tuesday |Wednesday |Thursday |Friday |Saturday |Sunday | |Week 1 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 |Post Bio |DQ 1 | |DQ 2 | | |Community Environmental Issue | |Week 2 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Conservation Versus Preservation | |Week 3 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Lemurs in Madagascar | |Week 4 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Human Population and the Environment | |Week 5 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Atmospheric Issues | |Week 6 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Water Resource Plan | |Week 7 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |American Rangelands and Forests | |Week 8 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | |DQ 1 | |DQ 2 | | |Energy Resource Plan | |Week 9 |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 | |SCI 275 | | |Capstone Discussion Question | | | |Environmental Science Final Project | |Academic Week |Day 1 |Day 2 |Day 3 |Day 4 |Day 5 |Day 6 |Day 7 |...
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...Binder and A. Milchev, J. Polym. Sci. B 50, 1515 (2012). 16M. Tagliazucchi and I. Szleifer, Soft Matter 8, 7292 (2012). 17A. N. Constable and W. J. Brittain, Colloids Surf. A 380, 128 (2011). 18N. Li, C. Zuo, and Q. Cao,J. Macromol. Sci. B 51, 275 (2012). 19R. P. Castro, H. G. Monbouquette, and Y. Cohen, J. Membr. Sci. 179, 207 (2000). 20L. Lanotte, S. Guido, C. Misbah, P. Peyla, and L. Bureau, Langmuir 28, 13758 (2012). 21E. M. Sevick, Macromolecules 29, 6952 (1996). 22S. P. Adiga and D. W. Brenner, Nano Lett. 5, 2509 (2005). 23T. Suo, T. N. Shendruk, O. A. Hickey, G. W. Slater, and M. D. Whitmore, Macromolecules 46, 1221 (2013). 24T. Suo and M. Whitmore, J. Chem. Phys. 140, 114901 (2014). 25G. S. Grest and M. Murat, Macromolecules 26, 3108 (1993). 26T. Suo and M. D. Whitmore, J. Chem. Phys. 138, 164907 (2013). 27G. H. Fredrickson, The Equilibrium Theory of Inhomogeneous Polymers (Oxford University Press, New York...
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...Title: Conservation and Preservation By Course: SCI 275 Date: Facilitator: Conservation and Preservation Preserving the lands as they were intended to be so it can sustain its own natural habitat and atmosphere without any interruption from humanity is essential to its own environment. However, exploring undeveloped areas may produce the resources that are needed for humankind to survive with the demands of society as it continues to grow in population. I believe humans can harvest from forest resources, but in the end, just as it is now, the same issues of air pollution, toxic waste, and landfills releasing toxicants into the air, and the migration of certain wild animals will be destroyed. The intentions of the image will be proclaimed as friendly, but the outcome will lead to some of the same issues as we face now. Due to the demands of humankind to survive, as life as we know it now, the leaders sees this as no choice but to make a decision to tap into undiscovered locations as resources. I am inclined to become self sufficient in our own nation by tapping into our own resources that is sustainable for economic use, but to do it in a way where the provisions of our effort does not cause more harm...
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...Energy Resource Challenges Checkpoint SCI/275 August 25, 2010 Bridgette Mack The Alternative video talked about different types of renewable energy wind power, solar power and biofuel. Wind power a method that solely depends on if there is wind that will make these very large turbines turn and if there is no wind they don’t turn. Another type of renewable energy would be solar power and it depends on the sun and uses panels that collect sun light beams and with the use of generators to form energy. You also have biofuel that is use to produce ethanol which comes corn scientist want to use other materials from farmers after they have harvest their land to see if it can also be made into liquid fuel. Having a different method of energy I think would be good especially if these methods aren’t harming our environment but with the good there is some bad. The challenges I think would be with wind energy this object depends on if the wind is blowing strong enough to turn those turbines and what if there isn’t any wind at all that mean there no energy to produces and the solar panel I think would be costly in the begin and they may off in the long run but it would have to take many miles and much land to produce enough of these panels to supply everyone with solar power and what it there is no sun what then. One other source of renewable would be water power which you can produce power from the use of water. I think that we need to start now to find some other way to produce...
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...Energy Resource Challenges SCI/275 Joshua Dodson 11/04/11 Renewable energy alternatives have many challenges, and managing these resources has become a nightmare. Renewable alternatives such as wind, solar, biofuels, and hydroelectric have become very popular as an alternative to nonrenewable energy resources. The first renewable energy alternative is wind energy. Because wind will always be around, the use of wind turbines is an energy alternative. A big challenge is that we cannot control the wind; some days it is strong and other days it is calm. Solar energy is another energy alternative. Photovoltaic solar electricity is the technology that is most cost effective to consumers in the United States. The greatest challenge to solar energy is that for 12 hours a day we do not have any sunlight, and there are days when it is to cloudy. Biofuels are derived from biomass (organic material) plants and animal waste. With today’s technology we can gather the leftovers from a harvest of corn such as, stalks, and stubble to produce ethanol. The challenge with this process is that it takes a great deal of organic material to produce a small amount of biofuel. Another renewable alternative that was not mentioned is hydroelectricity. The use of dams to produce electricity is very costly, and it takes a great deal of water to generate a small amount of electricity. Nonrenewable energy resources include coal, oil, and natural gas, which pollute our environment. The...
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...| Population Changes | | | Helen Hill | 11/24/2011 | SCI/275 Instructor: Tori Robinson | Population Changes The four factors that produce population size are: 1) Birth, 2) Death, 3) Immigration, and 4) Emigration. Birth is the increase of population by the ratio of births and people in a specified area, death is the decrease of population by the ratio of deaths and people also in a specified area, immigration is an increase of population by people moving into a new country, and emigration is the decrease of population by people moving out of a country. The factors that affected the population size of the Nutria is the fact that they were brought into this country and that the fact that they are not native to our country. Another factor is that the female within three years can produce up to 40 offspring and within six months of age the babies are ready to reproduce as well. What I think would happen to the Nutria if their food source would be depleted is that they would either die off, or they would emigrate to another area that has the same type of food source that they are accustomed to. If that did not happen they would adapt to new food sources which are similar to what they are accustomed to eating. Being that the Nutria are vegetarians and only eat the...
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...Effects of Water Resources Holly Regan SCI/275 August 29, 2014 Stacy Murphy Effects of Water Resources Groundwater Pollution in the United States is a map of the areas in the United States where significant groundwater pollution is occurring, saltwater intrusion or groundwater is naturally salty, and high level of minerals or other dissolved solids in groundwater. The pollutants range from municipal and industrial wastes such as from oil and gas fields, toxic industrial wastes, landfill leachate, irrigation return waters, and wastes from well drilling, harbor dredging, and excavation for drainage systems. The most significant pollutant throughout the regions of the United States is toxic industrial wastes and wastes from well drilling, harbor dredging, and excavation for drainage systems. Sources of Groundwater Contamination shows an illustration of the way pollutants are entering our groundwater directly or indirectly. Industrial and agricultural waste causes direct pollution which in return causes such actions as loss of wastelands, acid rain, landfill leaching, and faulty sewers. Global warming and drought can cause just as much harm because drought causes salt intrusion that leads to increased metals and acids that can ruin your drinking source. Protecting American’s from Danger in the Drinking Water is about a small town in California named Hinkley. The company Pacific Gas & Electric (PG&E) and workers at PG&E's nearby compressor station had been...
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