Draw on one graph, with N2 on the y-axis and N1 on the x-axis, the isoclines for the two competitors with the carrying capacities and competition coefficients listed below. Will these species coexist? If not, which species will win? Competitor 1 Competitor 2 K1 = 200, α12 = 0.4 K2 = 400, α21 =1
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Draw on one graph, with N2 on the y-axis and N1 on the x-axis, the isoclines for the two
competitors with the
species coexist? If not, which species will win?
Competitor 1 Competitor 2
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- What is the outcome of competition if K1 = 200, K2 = 150, α12 = 0.25, and α21 = 4? Include a graph to document your conclusion.Biologically, what conditions are necessary for stable coexistence of competitors? Describe the major ways that species can adapt to enhance the probability of stable coexistence.Given two interacting species where K1=3700, K2=1800, α1,2=1.25, and α2,1= 1.48, draw a state space diagram of the competition between these two species (label all axes and intercepts). Which species wins?
- Using the equation for R0, explain how transmission rate, host population size, virulence, and recovery rate affect a parasite’s fitness. Can you relate the equation for R0 to a diagram of a SIR model? How does R0 relate to dI/dt?Both hawks and owls feed on small mammals to sustain their respective populations without causing competitive exclusion. How can this work when both species live in the same geographic area?The graph below represents the growth of a population of flies in a jar. Which letter best indicated the part of the graph that represents the carrying capacity of the jar? and how did u get that answer?
- According to the video, what was the effect of artificially-modified ant density in acacias on the elephant feeding behavior? (Choose one.) a. As the number of ants swarming increased per minute on acacia branches, so did the number of branches fed on by elephants. b. As the number of ants swarming increased per minute on acacia branches, the number of branches fed on by elephants decreased. c. As the density of ants per A. depranolobium increased, the number of trees fed on by elephants decreased. d. Elephants fed more frequently on Acacia depranolobium trees with their ants removed than on A. depranolobium trees with ants. video link: https://www.youtube.com/watch?v=s3blzcbll7Q&t=293sWhich of the following can explain why species are able to coexist, even if the competitive exclusion principle is generally true? a) Species may be competitively equivalent, with the outcome of each competitive encounter being essentially random. b) Competitive exclusion may take many generations; prior to that point, there will be coexistence. c) Spatial heterogeneity in the distribution and concentrations of limiting resources can result in variation in the strength of competition across the landscape. choose all the answers that apply.Hyena carrying capacity in Mkomazi National Park is 500 (in the absence of competitors). Wild Dog carrying capacity in that park is 700 (in the absence of competitors). The addition of 1 wild dog to the park is equivalent to adding 2.5 hyena. The addition of 1 hyena to the park is equivalent to adding 0.4 wild dogs. Which of these species is the better competitor? Justify your answer quantitatively and illustrate your argument using an appropriate graph.
- Draw a species accumulation curve for the beetles in Area C3, based on the data shown in Table 1. 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 legendFor each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators. American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Even before they hatch, the offspring are prone to high rates of predation. Many offspring die before they reach adulthood. Of the offspring that do survive, some will die in adulthood, and some will live their entire natural life span.During the drought of 1977 on the island of Daphne Major, which of the following answers correctly explains why birds with larger beaks had a competitive advantage over other individuals? These birds were able to hold more water. These birds were able to fight off birds with smaller beaks more successfully. These birds were able to smell and locate nesting sites with more accuracy. Birds with larger beaks were better able to utilize the large seeds.