Abundance (percentage of 20 plant cover) 15 Species 15 Plots without Rudbeckia laciniata 10 10 10 5 5 5 5 A B C D E F G H I J Abundance (percentage of 55 5 5 5 5 5 5 5 5 5 plant cover) Calculate the species diversity (using the Shannon index, H) of plots with Rudbeckia. Round the answer to two decimal places
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- Discuss the role of disturbances in moderating species diversity with relation to succession and the Intermediate Disturbance Hypothesis. You may refer to the disturbances and species diversity diagram in your discussion, and explain some of the key characteristics of r-selected and k-selected species that lead to these observed patterns.. Draw a species accumulation curve for the beetles in Area C3, based on the data shown in Table 2. Ensure that you calculate a standard deviation around each average number of species per sample; plot this on this figure. Make sure you label the axes and that you provide a legend. You will need to reassemble the samples in all possible combinations in order to derive the species area curve (provided)Spatial scales are interconnected in a hierarchical way. Whitman looked at invertebrate communities on subtidal rock walls to examine the relationship between local and regional species richness. His studies demonstrated that A. local, not regional, processes determine local community species diversity B. local species richness levels off at high regional species richness levels C. local species richness is determined largely, but not completely, by regional species pools D. local processes are unimportant in determine local community species diversity E. There was no relationship between local and regional species richness
- The Ministry of the Environment (MMA) asks you to evaluate the effect of anthropogenic activity on the biodiversity of mammals in the foothills of the Central Zone in the last 20 years, which is known to be associated with significant habitat fragmentation. .Based on this information:a) Indicate 2 indicators of diversity indicating the change that you would expect to observe in them between the years 2000 and 2020. Give reasons for your answer.b) Draw the rarefaction curves that you would expect to obtain for the community in the study area in the year 2000 and in the year 2020.c) Indicate and explain 2 effects that you would expect to find on mammalian biodiversity by the year 2022 due to the COVID-19 pandemic.We might expect that populations near the periphery of a species’ range (marginalpopulations) might evolve greater tolerance of local conditions, which allow them to increase innumbers and thereby expand the species’ range. Why might this not be the case?Draw a species accumulation curve for the beetles in Area C3, based on the data shown in Table 2. Ensure that you calculate a standard deviation around each average number of species per sample; plot this on this figure. Make sure you label the axes and that you provide a legend. You will need to reassemble the samples in all possible combinations in order to derive the species area curve.(porvided the table)
- 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.Data shown in this figure describes the species richness of mammals and birds among a variety of Sky islands. Which of the following best fits the correlations represented in the graphs? 1) number of individuals increases with area and decreases with isolation 2) species richness increases with area and decreases with isolation 3) species diversity varies depending on area and isolation? Follow up question which model of species distribution and abundance does this data support? 1) Species area relationship 2) species accumulation curve 3) island-biogeography 4) rapoport’s rulePlease 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 mainland
- Oaks in California are suffering from a phenomenon called sudden oak death (SOD). This has the potential to convert oak-dominated communities to communities made up of mostly grasses and smaller plants. How would this change the abundances of the tick species described in the article? Make a prediction for each of the three most abundant species, and describe the specific results in this article that justify your prediction. Article Reference: Abiotic and habitat drivers of tick vector abundance, diversity, phenology and human encounter risk in southern California By: Andrew J MacDonaldExplain why you chose A or B, etc. Provide a logical explanation defending your answer choice. Q1: Which of the following hypothetical islands would likely have the greatest species richness? Group of answer choices A) Not enough information given B) a small island far from the mainland C) a large island far from the mainland D) a large island near to the mainland E) a small island near to the mainland Q2: Trophic cascades are often caused by Group of answer choices A) climate change B) pollution C) keystone species D) invasive species E) ecosystem engineers F) habitat loss Is my reasoning correct? Or is something wrong with my critical thinking? What do you think? The size of the island and its position is very much crucial for species richness. There are several factors that affect the species richness in a large island near the mainland. A large island near the mainland has the highest species richness which is determined by some…Explain why you chose A or B, etc. Provide a logical explanation defending your answer choice. Q1: Which of the following hypothetical islands would likely have the greatest species richness? Group of answer choices A) Not enough information given B) a small island far from the mainland C) a large island far from the mainland D) a large island near to the mainland E) a small island near to the mainland Q2: Trophic cascades are often caused by Group of answer choices A) climate change B) pollution C) keystone species D) invasive species E) ecosystem engineers F) habitat loss