To determine:
The two species that have been listed as endangered: one that has recovered to the extent that it has been “delisted” and one that has remained on the list for more than 20 years.
Introduction:
The endangered species are those species whose numbers are getting low. To prevent the extinction of those species, the Endangered Species Act was formed.
To determine:
The characteristics of two species and their environment have significantly contributed to their differing fates.
Introduction:
The endangered species are those species whose numbers are getting low. To prevent the extinction of those species, the Endangered Species Act is formed. The species which are at a risk of extinction are a salamander, blue whale, and snow leopard. The species which are delisted from the list of endangered species are Caribbean monk seal and Canary rockfish.
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Biology: Life on Earth with Physiology (11th Edition)
- A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches show a death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) a) Yes, this is a suitable habitat. The birth rate is higher than the death rate. b) No, this is not a suitable habitat. The birth rate is much lower than the death rate. c) 589 d) -358 e) 0.155 f) 0.845arrow_forwardA population of 1,492 finches is introduced to a rainforest. Over the next year, the finches show a death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) * O Yes, this is a suitable habitat. The birth rate is higher than the death rate. No, this is not a suitable habitat. The birth rate is much lower thn the death rate. 589 D 358 O 0.155 O 0.845 Which of the following is true of a population approaching its carrying capacity? O The population's rate of increase approaches zero, O O O O OCarrow_forwardMark Recapture can be written as M N = R Define each term. Use this equation to answer the following question. Show your work. A biologist for Mosaic fertilizer company catches 26 Florida scrub jays as part of their monthly environmental monitoring. Each bird is given a band. The next month, they catch 32 birds. 13 of the birds have bands. What is the estimated population size of the birds in that area?arrow_forward
- A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches show a death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) * Yes, this is a suitable habitat. The birth rate is higher than the death rate. No, this is not a suitable habitat. The birth rate is much lower then the death rate. 589 -358 0.155 0.845 Which of the following is true of a population approaching its carrying capacity? The population's rate of increase approaches zero. ロロロ□arrow_forwardB) (A (E Time --> Based on your understanding of population ecology to answer the following question: By the point labeled E, what has happened in this ecosystem? The population crashes as the ecosystem is too severely damaged to recover. The population has slightly exceeded the current carrying capacity. A new carrying capacity has been established after the population exceeded the previous carrying capacity %23 2$ % 4 7 W E R T # Indiviudals * LOarrow_forwardIn this task, you will assume the role of a wildlife biologist that must decide if reintroduction of cougars into the Eastern US is a feasible mitigation strategy for addressing white-tailed deer overpopulation. You will use scientific information from a variety of sources and what you learn in each learning cycle to support or challenge the reintroduction of cougars to the Eastern United States. Your position on the issue should be based on evidence related to the following factors: impact that the deer population is having on ecosystems • social and economic costs of the overpopulation of deer on various stakeholders • the habitat requirements of cougars, the availability of natural resources and carrying capacity of areas where they would be introduced • potential cougar impact on biodiversity, including on populations of coyote and white-tailed deer potential social and economic costs or benefits to stakeholders in areas where cougars are introducedarrow_forward
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- Bob Davison describes the Endangered Species Act (ESA) as an effective tool for conserving biological diversity. What is his rationale for the value of focusing on individual species? The public is not concerned about the economic costs of individual species recovery. A focus on individual species is cheaper than protecting entire ecosystems. Establishing public empathy for charismatic species provides an opportunity to educate people about lesser-known species. The public tends to value intact ecosystems over particular plant and animal species.arrow_forwardDistinguish between tolerance range and optimal range.arrow_forwardIn a field experiment an ecologist traps 30 mice. She marks all 30 mice and releases them back into her study site. A week later she returns and traps 40 mice. Ten of the 40 mice have been marked representing mice that were captured a second time. What is her objective? To collect data for constructing a mouse survivorship curve. O To estimate the mouse population density using the quadrate method. O To determine if mice who have been previously trapped will avoid being trapped a second time. O To estimate the mouse population size using the mark and recapture method.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College