Communities are defined by? A). Species whose ranges overlap B). Species that have the same ranges C). physical features of a defined geographic region D). The area occupied by the species with the largest range
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- Community 1 is formed of species A, B, C, D, and E. Community 2 is formed of species A, C, F, G, H. What is beta diversity, as estimated using the Jaccard index1) Which of the following defines the niche of a species? The role of a species in its community as well as the conditions it requires and the interactions it takes part in All populations of all species in some area The type of environment in which a species lives The number of species and their relative abundance within a community 2) Which of the following is an example of a biological factor that can affect community structure? Tropical regions support a high species diversity by receiving the most sunlight energy. The high temperatures of desert regions limit which species can live there. A plant species can live only in regions with a suitable level of rainfall. An insect herbivore inhibits the population growth of a tree species. 3)Which of the following prey defensive adaptations involves two or more prey species coming to resemble one another? Camouflage Startle displays…Please help me to choose one of the best asnwer for this 2 multiple choice questions, Thank you ) which of the following is NOT a definiton for biodiversity? A) the number of individuals in a population B) The variety of ecosystems within a given area C) All of these are possible definitions of biodiversity D)The number of alleles for a particular gene E)The number of species in a community 2)Imagine community with a biodiversity of 25 species.one species is hunted to extinction by humans, after which the community is protected from any human intervention. HOwever a year later you find that biodiversity is down to 5 species.what does this tell you about the species that went extinct due to hunting? A)It was a weak competitor B)It must have been a predator C) it may have been keystone species D) it must have been producer E) It was a virulent pathpgen
- Site A Site B Site A7 Species Site B = 5 Species *A*+* + Site C7 Species A Site C A vs B = 8 species B vs C = 6 species A vs C = 10 species A developer owns the property encompassing the three habitats above. By law, one of the habitats must be left intact to satisfy the zoning laws. The developer works with an environmental engineer to choose which of the habitats should be saved. The environmental engineer suggests that Site C should be saved. Which of the following choices best justifies this decision? Site C has greater species richness and species evenness than either Site A or Site B. This will promote the maximum sustainability for future generations of animals. Site C is tied with Site A for greatest species richness, but unlike Site A, it has representative species from all 3 of the sites within it. Site C not only contains the greatest number of species, it also has the greatest genetic diversity within each species. Site C has more unique species in it than either Site A or…Ecology and Biology: Shannon Diversity Index: Definition & Example The Shannon Diversity Index (sometimes called the Shannon-Wiener Index) is a way to measure the diversity of species in a community. Denoted as H, this index is calculated as: H = -Σpi * ln(pi) where: Σ: A Greek symbol that means “sum” ln: Natural log pi: The proportion of the entire community made up of species i The higher the value of H, the higher the diversity of species in a particular community. The lower the value of H, the lower the diversity. A value of H = 0 indicates a community that only has one species. The Shannon Equitability Index is a way to measure the evenness of species in a community. The term “evenness” simply refers to how similar the abundances of different species are in the community. Denoted as EH, this index is calculated as: EH = H / ln(S) where: H: The Shannon Diversity Index S: The total number of unique species What is the Shannon diversity index value for this community? What…NOTE: The image you need to see in order to answer this question is attachedA developer owns the property encompassing the three habitats above. By law, one of the habitats must be left intact to satisfy the zoning laws. The developer works with an environmental engineer to choose which of the habitats should be saved. The environmental engineer suggests that Site C should be saved. Which of the following choices best justifies this decision?Responses A) Site C has greater species richness and species evenness than either Site A or Site B. This will promote the maximum sustainability for future generations of animals. B) Site C is tied with Site A for greatest species richness, but unlike Site A, it has representative species from all 3 of the sites within it. C) Site C not only contains the greatest number of species, it also has the greatest genetic diversity within each species. D) Site C has more unique species in it than either Site A or Site B
- Create a two-part figure showing the effects of forest fragmentation on the community of small mammals relevant to Lyme disease in eastern forests. Figure A should depict the interaction network of a large forestpatch with higher species diversity. Figure B should illustrate how the interaction network and transmission of Borrelia burgdorferi are different in a small forest fragment with low species diversity than they are in largeforest patches with greater diverisity. Eastern forests are diverse communities in which many species interact with one another. Your figure will be asimplified interaction network showing some of the most important species related to the ecology of Lyme disease. Remember that your goal is to illustrate how increasing fragmentation affects forest mammal communities in a way that increases Lyme disease risk.• Choose from the following species for your figure: black-legged tick, white-footed mouse, raccoon, eastern chipmunk, gray squirrel, white-tailed deer,…Habitats with moderate levels of disturbance have higher species diversity. Question 2 options: A) True B) FalseThe table below shows the size of species A and B populations that live on a small island near Philippine.a) State how the information in the table can be used to determine thatthe species B is the predator.b) Briefly explain TWO (2) possible ecological reasons, other than humanactivity, for the change in species A population between 1985 and 1990.c) Name TWO (2)limiting factors that keep the species B population sizefrom growing any larger.
- Consider an ecological network consisting of three interconnected habitats (A BCA). Ecologists want to model the occupancy dynamics of a particular species "Species" across these habitats over time using a discrete time discrete state stochastic process. State Space: State 0: Species X is absent from all habitats. State 1: Species X is present in Habitat A State 2 : Species X is present in Habitat B. State 3: Species X is present in Habitat C. State 4: Species X is present in Habitats A&B State 5: Species X is present in Habitats A&C. State 6: Species X is present in Habitats B&C. State 7: Species X is present in All Habitats. Transition Probabilities: Rule 1: The probability of colonizing an adjacent habitat is 0.2. Rule 2: The probability of extinction from a habitat is 0.15. Rule 3: The probability of recolonization of a random habitat is 0.1 A) Draw a schematic diagram of the Markov Process illustrating states and transitions. Define the transition rate matrix forthis discrete time…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 choicesA population is correctly defined as having which of the following characteristics? CHECK ALL THAT COULD APPLY A)individuals belonging to the same species B)possessing a constant and uniform density and dispersion C)inhabiting the same general area