Consider the following hypothetical communities in a desert landscape sa Then answer the questions that follow. Species Community A Community B A 50 10 В 36 46 30 D 51 35 E 55 10 a. Which of the two communities has higher diversity? Why? b. Which of the two communities show more equitability? Why? c. Identify the Species richness of community A and B
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- When we measure species density. If you apply random sampling and systematic sampling to a site setting, what problems may we encounter? Why is there an error compared with the actual density of species?Identify the Shannon diversity index in the two hypothetical communities below. Which of the two communities is more diverse? Round off your answer to the nearest hundredth Species A Community A B Community B A 12 5 B 1 5 C 3 3 D 4 7SAMPLE EXERCISES: Calculate for the Diversity Indices of the different communities given below using PAST. Relative abundance, however, need to be calculated manually.
- Hypothetical scenario: In a vast area of a land-locked town, two distinct forest formations can be found – forest over limestone formation a lowland tropical forest. Researchers did an area-random sampling composed of 25 plots measuring 20mx20m for each of the two forest formations. Do you think the two forest formations have the same diversity index values and species richness? Why or why not?Please explain why you decided to pick an answer choice. Explain your reasoning/rational/logic for choosing the answer choice. Question: Which of the following hypothetical islands would likely have the greatest species richness? Group of answer choices A) Not enough information given B) a large island far from the mainland C) a large island near to the mainlandCalculate for the Diversity Indices of the different communities given below using PAST. Relative abundance, however, need to be calculated manually.
- The table shown below represents the number of species growing in an area that was logged using clear-cutting 45 years ago in Temagami, Ontario. Data was collected periodically over 45 years. a.) describe the changes occurring in vegetation type and species diversity over the 45 years b.) what does the pattern of change tell you about what is happening in this area? c.) Explain how the data supports your conculsion.INTRODUCTION: Quadrat sampling is a classic tool for the study of ecology, especially biodiversity. In general, a series of squares (quadrats) of a set size are placed in a habitat of interest and the species within those quadrats are identified and recorded. QUESTION: What are the advantages and disadvantages of a quadrat sampling method?You're analyzing biodiversity on three islands: Island A, located near the equator with varied elevations; Island B, situated in temperate latitudes and relatively flat; Island C, another equatorial island but with a wide variety of habitats. To test your answers to the first question, you decide to survey the lizard species on the islands. Below is a graphical representation of a survey plot from each island, where icons represents different species and the abundance of each species is tallied in the table below. (note: these surveys may not represent the entire island patterns, so don’t use these to try to answer the first question!) A. What is the alpha diversity on each island? Island A Island B Island C B. What is the beta diversity between each island pair (A-B, A-C, B-C)? Beta diversity A-B Beta diversity A-C Beta diversity B-C C. Calculate the Shannon-Weiner index and Simpson’s index of diversity for each island. Island A Island B Island C D. What do these diversity…
- Using the concept of beta diversity, as a field researcher interested in comparing communities in stream habitat, what data will be neede to collect if you are interested in comparing how species occurrence and abundance differ in different parts of the stream?Environments with low frequency and intensity of disturbance tend to have ________ species diversity because ______. Group of answer choices A) low; the best competitors exclude any other species B) high; disturbances kill off a large number of individuals C) low; there are fewer late-successional species than early-successional species D) high; more species can colonize over a longer period of time Question: Answer choice selection is either: Burkina Faso or Italy for all three answer choicesThis diagram (below) shows 3 habitats (sites). Each unique shape-color figure represents a unique species. What is the beta diversity for sites A vs. B?A) 7 B) 5 C) 4 D) 6E) 8