The current population of a threatened animal species is 1.6 million, but it is declining with...
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current population of a threatened animal species is 1.6 million,
but it is declining with...
The current population of a threatened animal species is 1.9 million, but it is declining with...
The current population of a threatened animal species is 1.9 million, but it is declining with a half-life of 20 years. How many animals will be left in 40 years? In 75 years?
4. An endangered population is declining by 5% per year. There are initially 862 animals present....
4. An endangered population is declining by 5% per year. There are initially 862 animals present. a. Explain why this is an exponential function. b. Write a formula that gives the number A of animals remaining after t years. c. Make a graph that shows the population level over the first 20 years. d. How long will it take for the population to decline to 733 animals?
A species of animal is discovered on an island. Suppose that the population size P(1) of...
A species of animal is discovered on an island. Suppose that the population size P(1) of the species can be modeled by the following function, where timer is measured in years. 280 -0.29 1+6e Find the initial population size of the species and the population size after 8 years. Round your answers to the nearest whole number as necessary. Initial population size: individuals Population size after 8 years: individuals X ? Save For Later SA 18 AW
10. The population P(t) of a certain animal species inhabiting in a forest increases according to...
10. The population P(t) of a certain animal species inhabiting in a forest increases according to the logistic equa- tion with growth constant k = 0.2 week and carrying capacity 700. (a) Assuming the initial population is 100, find a formula for the population at time t. (b) How many weeks will the population reach 500?
Considering the following life history for an animal species, which harvest plan would result in the...
Considering the following life history for an animal species, which harvest plan would result in the highest population growth for the species (assume harvest would only take a small portion of total individuals in the stated life stage): 75-year lifespan Age at maturity - 20 yrs Post reproductive age - 60 years Average lifetime fecundity (females only) - 5 High rates of parental care Strong social groups High juvenile mortality Low adult mortality Select one: A. Harvest in the juvenile...
A population of a certain species of turtle is 28,000 animals and is increasing at the...
A population of a certain species of turtle is 28,000 animals and is increasing at the rate of 2% per year. This paragraph describes a(n) Select an answer linear growth linear decay exponential growth exponential decay scenario. Write an equation for y, the population at time t (in years), representing the situation. y = How many turtles are in the population after 15 years?
1) If a species has a (Lambda sign) of 0.75 and has a current population size...
1) If a species has a (Lambda sign) of 0.75 and has a current population size of 135, how many years will it take for the population size to go below 50? Show all work
A population gathers plants and animals for survival. They need at least 400 units of energy,...
A population gathers plants and animals for survival. They need at least 400 units of energy, 300 units of protein, and 8 hides. One unit of plants provides 30 units of energy, 10 units of protein, and 0 hides. One animal provides 20 units of energy, 25 units of protein, and 1 hide. Only 27 units of plants and 26 animals are available. It costs 20 hours of labor to gather one unit of a plant and 10 hours for...
6. An environmentalist captures 6 members of an endangered species and transport them to a controlled environment where...
6. An environmentalist captures 6 members of an endangered species and transport them to a controlled environment where they can on her research, she expects the population to grow according the model produce offspring and regenerate their population. Based 500 Р () 1+ Aekt Find A [a.] [b.] Assuming the model is correct, how many animals can the environment sustain? This number is called the carrying capacity. Find k if the population reaches 39 after 12 years c.] d.] How...
5) As you likely know, we are in the largest extinction event since the Cretaceous-Tertiary (K-T) mass extinction of 66 million years ago, in which 75% of all plant and animal species were eliminated....
5) As you likely know, we are in the largest extinction event since the Cretaceous-Tertiary (K-T) mass extinction of 66 million years ago, in which 75% of all plant and animal species were eliminated. It is widely thought that the K-T mass extinction was associated with a ca. 10 km diameter meteor strike in the Gulf of Mexico near what is now the Yucatan peninsula. The on-going mass extinction event (the Holocene or (and this is my preferred term) Anthropocene...
A species of animal is discovered on an island. Suppose that the population size P(1) of the species can be modeled by the following function, where timer is measured in years. 280 -0.29 1+6e Find the initial population size of the species and the population size after 8 years. Round your answers to the nearest whole number as necessary. Initial population size: individuals Population size after 8 years: individuals X ? Save For Later SA 18 AW
10. The population P(t) of a certain animal species inhabiting in a forest increases according to the logistic equa- tion with growth constant k = 0.2 week and carrying capacity 700. (a) Assuming the initial population is 100, find a formula for the population at time t. (b) How many weeks will the population reach 500?
A population gathers plants and animals for survival. They need at least 400 units of energy, 300 units of protein, and 8 hides. One unit of plants provides 30 units of energy, 10 units of protein, and 0 hides. One animal provides 20 units of energy, 25 units of protein, and 1 hide. Only 27 units of plants and 26 animals are available. It costs 20 hours of labor to gather one unit of a plant and 10 hours for...
6. An environmentalist captures 6 members of an endangered species and transport them to a controlled environment where they can on her research, she expects the population to grow according the model produce offspring and regenerate their population. Based 500 Р () 1+ Aekt Find A [a.] [b.] Assuming the model is correct, how many animals can the environment sustain? This number is called the carrying capacity. Find k if the population reaches 39 after 12 years c.] d.] How...
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