Sea otters can eat 20%-23% of their body weight in food each day. An average sea otter weighs 23 kg (roughly 50 pounds), and there are 20-30 otters per square kilometer where they are present. An average sea urchin weighs 0.55 kg. Assuming that the otters eat only sea urchins, use these data to calculate a conservative estimate of the number of sea urchins per square kilometer that an otter population would be expected to eat each year.

Q: A population is expected to grow exponentially when the population size is close but below the…

A: Population can be defined as a group of individuals of same species.Population can show variation in…

Q: What would happen to the wolf population if the moose population decreases?

A: Answer :- According to the given statement and graphic If moose decrease, wolves will decrease…

Q: You visit the Apalachicola National Forest and capture, mark and release 30 fence lizards.  A week…

A: Here the formula applicable is  M2: N = (M1 x C) / M2  Where M1 is 30 C is 25 M2 is 5

Q: The life table below is for a species of lizard. Use it to answer the questions below. It can be…

A: Population growth is the increase in the number of individuals within a specific area over a given…

Q: In a river in Ontario, 270 Atlantic salmon were captured and fin-marked with a numbered T-bar anchor…

A: The problem is asking us to estimate the population of Atlantic salmon in a river in Ontario. The…

Q: Using the lynx–hare interaction, explain in words the equations of the Lotka–Volterra model for the…

A: Lotka and Volterra were two scientists who formed some “parametric differential equations” to show…

Q: As a hypothetical example, imagine that you were studying a population of Eastern Collared-Lizards…

A: Indispensable mortality refers to the unavoidable deaths that occur at each stage of an organism's…

Q: How did predation affect the number of starving deer in Yellowstone? Use the data from Data Table 1…

A: One organism kills and eats another during predation. To the detriment of the organism being…

Q: Assume a population of desert tortoises has a per capita growth rate (r) or 0.039. If this rate…

A: Introduction :- The rate at which the number of organisms in a population rises is referred to as…

Q: In which year was the deer starvation greatest? Using the data presented and your knowledge of…

A: From the given graph, we can see that deer starvation was the greatest in 1999. During this year,…

Q: The life table below is for a species of lizard. Use it to answer the questions below. It can be…

A: Population growth is the increase in the number of individuals within a specific area over a given…

Q: Describe the historical pattern of growth of the worldwide human population since our origin.…

A: Beyond Population: Addressing Consumption PatternsWhile population size is a critical factor, it's…

Q: The figure shows the relationship between the growth rates (on a log scale) of individual fish and…

A: The interaction between two different organisms or two different species, where both are harmed is…

Q: An example of a limiting factor would be the amount of food available in a population. True False

A: Introduction :- A limiting factor is something that restricts the size of a population and slows or…

Q: Rajah pitcher plants in Borneo may obtain most of the nitrogen they need from the scat of mountain…

A: Correct graph:If the mountain tree shrew and summit rat become extinct, the graph depicting the…

Q: You are contracted by the City of Ottawa to estimate the size of the population of small mouth bass…

A: When it is impossible to count every person in a population, the mark recapture approach is employed…

Q: What were the densities of nauplii, rotifers, and zebra mussels in1991? In 2000? In 2008? What…

A: The pattern of all the three species is increasing, decreasing or vice versa. When the numbers has…

Q: The effective population size of the nematode Caenorhabditis brenneri was estimated to be 15,200,000…

A: Introduction :- A nematode, often known as a roundworm, is a worm belonging to the phylum Nematoda.…

Q: 1. Calculate how many bugs are added to the population next month when population size is 65? 2.…

A: Given problem is based on population dynamics, which exhibit density dependent growth. K is carrying…

Q: The eastern barred bandicoot is a highly threatened marsupial in Australia. Assume a generation time…

A: Genetic diversity refers to the total number of genetic characteristics (alleles) present in a…

Q: A population of 8000 bison has an annual per capita birth rate of 0.07 and an annual per capita…

A: Introduction  A population is the smallest unit of any ecosystem which collectively includes the…

Q: population that did not grow in close relation to the amount of resources available in the…

A: Population growth is the change in size of population. It is dependent on the death and birth of…

Q: When wolves were returned to Yellowstone National Park in 1995, some of the effects noted were…

A: Ans- They are keystone species.

Q: Two populations of deer live in similar protected tracts of land. In tract A, the deer are left to…

A: In real world in a habitat, the growth of population cannot increase indefinitely because the…

Q: Both species depend on similar food sources.

A: INTRODUCTION:- The question is asking us to calculate the density of the elk population in an 80…

Q: In a forest in India, there are 800 axis deer and 500 barking deer. The forest can support a maximum…

A: The Lotka-Volterra model is a mathematical model that describes the behavior of biological systems,…

Q: Use the following information to answer the next question. Predator-prey population cycles

A: In the evolutionary race between predator and prey, the predator cannot afford to win because of the…

Q: Find a reference to the carrying capacity of Earth (for humans). It needs to be some estimate of the…

A: Carrying Capacity is defined as the ability of earth to suppport a number of individuals. It is a…

Q: GRAPH: In the example below, four bird species consume insects of various sizes. The mean and…

A: Accord to the Niche partition concept, the two organisms found in the same habitat will establish in…

Q: Which statement is a reasonable inference based on the information in the given graphic? Average…

A: Bass fish Bass means perch, it is a universal common name for many fishes. The term includes all…

Q: A human population of 10,000 individuals has a birth rate of 90 per every 1000 persons and a death…

A: The growth of the population is the increase in the number of individuals in the population in a…

Q: a) On a single graph, draw the relationship between moose density and the per capita birth and death…

A: Population ecology is the study of these and other questions about what factors affect population…

Q: Given the food web below where predator preferences are indicated using strong (thick arrow) and…

A: Competition coefficient mean the inhibitory effect of one species over another.

Q: Previous question: (Assume that for a given population of moose, the per-capita birth rate remains…

A: Birth rate have an effect on population size: Populations gain individuals through births and…

Q: Graph the data from the table above into the answer box. Use the information from the graph to…

A: Growth rate is the rate of increment in size or number per unit time for a given period  Growth…

Q: A continuously growing population of bears has a population size of 500 and its intrinsic rate of…

A: Let us look at the given data - Initial Population size (N0) = 500 Intrinsic rate of increase (r) =…

Q: A few plant-eating salamanders manage to float on a log to a large island in the Pacific that did…

A: For any population to increase in number, there should be a continuous supply of natural resources…

Q: Which of the following statements about the world population is NOT true? The world population was…

A: The population changes are occured in every year.

Q: N2 B N1

A: Carrying capacity: It can be defined as maximum ability of a specific area to withstand the maximum…

Q: Female cottontail rabbits (sylvilagus floridanus) are especially fertile, able to give birth to…

A: Cutoff points to Growth   A female cottontail bunny (Sylvilagus floridanus) can conceive an…

Q: Population Estimates of Animals in Africa in 1990 and in 2000 1990 2000 Lions Cheetahs Zebras…

A: A population is a collection of members of the same species who coexist in a particular area and…

Q: The global human population has surpassed 7 billion, far exceeding our population’s size throughout…

A: Introduction The carrying capacity of an environment refers to the maximum population number of a…

Q: C. Compare the two graphs below and make a claim about the relationship between the two graphs.…

A: Living organisms make biotic components of the ecosystem.