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highly on the willows because they use them for dams and lodges. Next, the beavers provide a pond to many reptiles and amphibians. In return this increases many of different animals up and down the trophic levels. An ecosystem will become less diverse as there are changes from different trophic levels, a term called trophic cascades will begin to occur as the apex predator is eliminated from an ecosystem. With the willows being gone there is not a place for other small animals to live and eat…

Use quadrats to estimate the size of a population in an ecosystem Collect, analyse and present data to describe the distribution of species whose abundance has been estimated Consider the accuracy of population estimation strategies Identify factors determining the distribution of species whose abundance has been estimated Examine trends in population estimates for some plant and animal species in each environment Examine trends in population…

When countering data or creating data, various areas need to be considered. For example, identifying the data, the way the data is presented and whether the data is from primary secondary or a tertiary source. There are two different types of data, Primary and Secondary data. Primary data is data that is collected first hand, by yourself or your team. This type of data can be collected via interviews, questionnaires or observation in order to answer your research question. Similarly, secondary…

6.3 Research question #3 How do mercury stable isotopes ratio change in mercury bio-uptake and bio-magnification in an Arctic marine ecosystem? There is still debate in the scientific community about Hg trophic transfer and/or in vivo transformations lead to MDF and MIF of Hg isotopes (Bergquist and Blum, 2007; Perrot et al., 2012; Senn et al., 2010; Kwon et al., 2012; Das et al., 2009). The MDF and MIF signatures of food webs may help to identify major sources and processes leading to…

biodiversity of an ecosystem? Before we were given the question, we were taught that biodiversity is about relative abundance and species richness. Just recently we learned about the transfer of energy in food webs, while also learning more about trophic levels. Looking at how much energy you gain and how much an organism needs, I learned that eating straight off a source of plants would help organisms grow and prosper. For our group we examined the producers of the ecosystem who are at the…

Life’s events can cause us to change our priorities. For instance, if you were diagnosed with cancer, it can change your life physically and mentally. It changes how you look at life now knowing that one day, you will no longer walk on the Earth, unless there was a cure. In the short story, Contents of a Dead Man’s Pocket, Tom had many priorities in which changed at the end. In the beginning of the story, Tom has to make a decision on whether to go to the movies with his wife or stay at home…

question, I believe that people should follow what we always been doing and not to change just because. However, if I had to choose, I think eat at a lower trophic level would be more beneficial to humans. Now days, people are usually eaten higher on the food chain, but this could be not as efficient environmentally. As the trophic level goes up, 90% of the energy will be lost which means that we are only getting 10% of our food’s energy, the rest are being used to make heat. One of most…

A true friend accepts who you are but also helps you become who you are supposed to be. The definition of a true friend has changed over time. “The Japanese have a term, Kenzoku, which translated means “family”. The connotation suggests a bond between people who’ve made a similar commitment and share a similar destiny. It implies the presence of the deepest connection of friendship, of lives lived as comrades from the distant past.” (Lickerman, Alex. “The True Meaning of Friendship.” Psychology…

While interviewing all of the different people and roles in the church, I notice that a lot of the answers were very consistent in their evaluation of the church and of Tony. I noticed that a lot of people felt the same way about Tony, and from the overall info that I received on him from everyone is that he is an awesome guy. First we can look and see what the people had to say about the pastoral roles that are crucial within a church. To do this we can take a look at the different words the…

mansion to live in, we are persuaded that we are not living life to it’s full potential. Yet, it seems that people who are dirt poor find happiness easier than someone who has a home and a steady income. How is it that income supposedly determines our level of happiness, but we do not conclude it ourselves? Some may argue that money is necessary to survive, which is true in a manner of speaking. However, you do not need millions of dollars in order to be happy and live a secure lifestyle. The…