Which statement about the two communities pictured above is true? OCommunity 2 has lower species abundance but the same species richness Community 2 has the same species richness and higher species abundance O Community 1 has higher species abundance and lower species richness OCommunity 1 has higher species richness and higher species abundance

Study the graphs shown in the picture.  Describe the patterns observed in the top group depicting changes in the number of species per year.  Are these patterns similar or different from the patterns observed in the bottom group depicting turnover of species?

tion Habitats A and B both have 100 butterflies. Habitat A has the following number of individuals per species: 25, 20, 5, 15, and 35. By contrast. Habitat B has the following number of individuals per species: 10, 15, 20, 12, 20, 18, and 5.

Species with a capacity for a high rate of population growth are called o-selected species p-selected species K-selected species O j-selected species r-selected species

Select ALL of the conclusions that can be drawn from this graph. LAA Species 1 Seed size Number of seeds consumed Species: Select all that apply Species 2 is a better competitor that species 2. Species 1 and species 2 compete for seeds of an intermediate size. Species 1 has a stronger beak than species 2. Species 2 has a broader niche range than species 1. Species 1 typically eats smaller seeds that species 2.

The green world hypothesis was tested by Robert Paine and he found that when you removed the top predator, star fish, from the intertidal zone Group of answer choices:    • None of the answers are correct • species diversity stayed the same • species diversity increased • species diversity decreased

Q2.3 1 Point Calculate the Shannon-Weiner index and Simpson's index of diversity for each island. Island A Island B Island C Save Answer *Unsaved Changes

Two islands exist in the eastern Pacific. The animal and plant life on both islands were wiped out by a freak storm at the same time. Island "A" is 100 miles off the coast of Peru; whereas island "B" is only 10 miles off Peru's coast. Island "A" is much smaller than island "B" (20 square miles as opposed to 75 square miles). Which island has a higher species richness equilibrium  ? Explain why using the Theory of Island Biogeography.

The table below shows the number of individuals from 4 species of frogs sampled in a pond. What is the Shannon Index this community? Round  your answer to the second decimal.   species A species B species C species D 89 47 75 23

The green line is the isocline for species 1. The black line is the isocline for species 2. Population size Ni is on the x- axis. Population size N2 is on the y-axis. Why do both species coexist in this scenario? K/a12 (A) species 2 reaches its carrying capacity before it reaches the number of individuals it would take to drive species 1 extinct. At every stable size for species 2, species 1 is below its carrying capacity and therefore still increasing. K2 (B) the carrying capacity for both species is reached before they reach the number of individuals required to drive the other species extinct. At low population sizes, each species' growth rate is positive. KI (C) both species' carrying capacities are higher than the population size required to drive the other species extinct. Population size of Species 1 Green is the isocline for species 1 Black is the isocline for species 2 Population size of Species 2