CAT Exam  >  CAT Questions  >  A passage is followed by questions pertaining... Start Learning for Free
A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.
The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.
The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.
In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.
Q.
Which of the following statements about the theory of island biogeography is true?
  • a)
    Islands are formed when animals from nearby locations immigrate to newer locations.
  • b)
    Islands which are further away from the mainland have more number of species.
  • c)
    Only the islands closer to the mainland managed to prove the Theory of Biogeography.
  • d)
    The larger of the recolonised islands near the mainland resembled their earlier home and had more diversity in species.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A passage is followed by questions pertaining to the passage. Read the...
Option 1 has no information in the passage to support it.
Option 2 is false as the passage supports the opposite -that larger islands have more number of species at equilibrium.
Option 3 is not true as the passage also mentions islands further away from the mainland to have contributed to the theory.
Option 4 is correct since the passage states that the larger of the recolonised islands had more species at equilibrium.
Hence, the correct answer is option 4.
View all questions of this test
Most Upvoted Answer
A passage is followed by questions pertaining to the passage. Read the...
Explanation of the Correct Answer
The correct answer is option 'D'. Here’s why this statement accurately reflects the findings related to the Theory of Island Biogeography:
Recolonization Process
- After the islands were fumigated, they were monitored for recolonization.
- The larger islands had a greater capacity to support diverse species due to their larger habitat areas.
Species Diversity
- Larger islands offer more varied habitats, which contributes to a higher likelihood of species survival and diversity.
- The theory posits that larger areas reduce extinction probabilities, leading to a more stable and diverse ecosystem.
Proximity to Mainland
- The passage notes that islands closer to the mainland recolonized faster, suggesting that they had easier access to immigrant species.
- This indicates that while size is important, proximity also plays a critical role in species richness.
Conclusion
- Therefore, the statement in option 'D' encapsulates the idea that larger recolonized islands, especially those near the mainland, had a higher diversity and resembled their earlier ecological states.
- It reflects the core concepts of the Theory of Island Biogeography, which emphasizes the interplay between island size, habitat diversity, and species richness.
In contrast, the other options either misinterpret the findings or present incorrect reasoning regarding the relationship between island size, distance from the mainland, and species richness.
Explore Courses for CAT exam

Similar CAT Doubts

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they relaxed towards equilibrium caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements is true?

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they relaxed towards equilibrium caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements cannot be made based on the theory of island biogeography?

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they relaxed towards equilibrium caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Conservation biologists are likely to disagree with which of the following statements?

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they relaxed towards equilibrium caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.How will habitat corridors help reduce extinction?

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they relaxed towards equilibrium caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.From the following words taken from the passage, determine the word which is the closest to being an antonym of Colonise.

Top Courses for CAT

A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer?
Question Description
A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? for CAT 2025 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for CAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer?.
Solutions for A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT. Download more important topics, notes, lectures and mock test series for CAT Exam by signing up for free.
Here you can find the meaning of A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A passage is followed by questions pertaining to the passage. Read the passage and answer the questions. Choose the most appropriate answer.The theory of island biogeography was experimentally tested by E.O. Wilson and his student Daniel Simberloff in the mangrove islands in the Florida Keys. Species richness on several small mangroves islands were surveyed. The islands were fumigated with methyl bromide to clear their arthropod communities. Following fumigation the immigration of species onto the islands was monitored. Within a year, the islands had been recolonised. Islands closer to the mainland recovered faster and larger islands had more species at equilibrium as predicted by the Theory of Island Biogeography. The theory proposes that the number of species found on an undisturbed island is determined by: immigration, emigration and extinction. Immigration and emigration are affected by the distance of an island from a source of colonists. Usually this source is the mainland, but it can also be other islands. Islands that are more isolated are less likely to receive immigrants than islands that are less isolated.The rate of extinction once a species manages to colonize an island is affected by island size. Larger islands contain larger habitat areas and opportunities for more different varieties of habitat. Larger habitat size reduces the probability of extinction due to chance events. Habitat heterogeneity increases the number of 5 species that will be successful after immigration.Over time, the countervailing forces of extinction and immigration result in an equilibrium level of species richness. Within a few years of the publishing of the theory its application to the field of conservation biology had been realised and was being vigorously debated in ecological circles. The realisation that reserves and national parks formed islands inside human-altered landscapes, and that these reserves could lose species as they 'relaxed towards equilibrium' caused a great deal of concern. This is particularly true when conserving larger species which tend to have larger ranges.In the years after the publication of Wilson and Simberloff s papers ecologists had found more examples of the species-area relationship, and conservation planning was taking the view that the one large reserve could hold more species than several smaller reserves, and that larger reserves should be the norm in reserve design. Island biogeography theory also led to the development of habitat corridors as a conservation tool to increase connectivity between habitat islands. Habitat corridors can increase the movement of species between parks and reserves and therefore increase the number of species that can be supported.Q.Which of the following statements about the theory of island biogeography is true?a)Islands are formed when animals from nearby locations immigrate to newer locations.b)Islands which are further away from the mainland have more number of species.c)Only the islands closer to the mainland managed to prove the Theory of Biogeography.d)The larger of the recolonised islands near the mainland resembledtheir earlier home and had more diversity in species.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice CAT tests.
Explore Courses for CAT exam

Top Courses for CAT

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev