Forest Fragments – Assignment Questions The ‘Forest Fragments’ Assignment is an individual assignment, completed and submitted individually to the dropbox PART II: Data Interpretation (9 marks) Examine the data you collected and the calculations you made to answer the following questions: 2.1 What extra information is included in the Shannon’s Diversity Index (vs. richness), and how is this information useful? Why would a scientist use Shannon’s Diversity Index in addition to a richness
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diversity are therefore based on the identification of morphotypes or other surrogate measures (Cannon 1997). http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2664.2005.01107.x/full Fahrig, L. & Merriam, G. (1994) Conservation at fragmented populations. Conservation Biology, 8, 50–59. Norden, B. & Appelqvist, T. (2001) Conceptual problems of ecological continuity and its bioindicators.
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Bio-100-131 17 July 2013 The Effect Climate Change has on a Species As Earth’s climate cycles between warm and cool periods, species often must move to stay within suitable conditions. Scientists have now mapped how fast species have had to migrate in the past to keep up with changing climate. They found that small-ranged species – which constitute much of Earth’s biodiversity – are concentrated in regions where little migration has been required (Science daily). With people activities and habits
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Route-ways such as roads and railways provide urban niches for specific and distinctive species of plants and even animals. Firstly, the route-way allows exotic and otherwise non-native species of plants to be introduced due to cars and trains bringing in seeds from different areas; increasing the biodiversity of that particular area, an example being windborne seeds such as the Oxford ragwort being carried to different areas by trains. Cars also have their use in introducing distinctive species;
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goes by. It has dropped from 300 to 250 individuals. My species is listed in a “report on October 27, 2007 as one of the 25 endangered primates by the Primate Specialist Group of the World Conservation Union's Species Survival Commission and the International Primatological Society, in collaboration with Conservation International” (Nash, 2010, para. 1). There are many factors contributing to our endangerment. First, is the loss of our habitat due to illegal cutting of trees or illegal logging of humans
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Part A: Definitions 1) Extinct- When a species has died out and is no longer a living organism on earth, due to human activities or environmental forces disturbance like example : poaching, poor reproduction, global warming, etc. One example for extinction is the polar bears are highly endangered, because humans cause global warming and that causes the ice sheet to melt that supports the polar bear to survive because they depend on the ice to prey down seals(there main source of food) , therefore
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Hybrid zones have drawn great interest because they provide opportunities for further studies of the processes involved in divergence and recombination of species. Hybrid zones can be classified as primary or secondary, depending on their origins. In this study, we considered the hybrid zone within the Northern Flickers, which has been stable on the United States’ Great Plains throughout time. The interaction between the Red- and Yellow-shafted subspecies of Northern Flickers provides a great opportunity
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In Elizabeth Kolbert’s book, The Sixth Extinction: An Unnatural History, she details her travels around the world which she has taken to learn more about the rapidly declining populations of several species. With each chapter centered on a different species, Kolbert illustrates the picture of a sixth mass extinction, one anthropogenically caused, a feature that distinguishes this extinction from the five previous ones. Certain species all across the world witness their populations dwindling to abismal
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A keystone species is a species that fulfills a very important role in its habitat. When a keystone species is eradicated from the habitat, that habitat undergoes extreme changes. The loss of a keystone species can cause other species to leave the environment and create a domino effect of outcomes. The loss of any organism in a habitat messes up the systems and relationships between other creatures and the balance of the habitat suffers. Many keystone species are predators who are essential to their
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Extinction Extinction is a very straightforward technique that keeps the target behavior from happening by withholding results, and it declines. The behavior definition of extinction per Miltenberger (2015) asserts a behavior that has been already reinforced never again brings about the reinforcing outcomes and, in this manner, the behavior quits occurring later on. Also, extinction as a technique took place when reinforcement of a formerly strengthened behavior ceased; thus, the recurrence of that
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