Biogeography

Biogeography

Insular biogeography specifically studies:

“Factors influencing species richness on islands” for insular biogeography specifically studies. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Larger islands usually support more habitats and larger populations, lowering extinction risk; less isolated islands receive colonists more readily and may experience rescue effects. These mechanisms also apply to habitat fragments that function as ecological islands. The remaining alternatives—“Genetic diversity”, “Animal behavior on continents”, “Marine

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Why might distant islands have fewer species?

“Lower immigration rates” for why might distant islands have fewer species. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Island biogeography explains species richness as a dynamic balance between immigration and extinction. Immigration generally declines as an island fills with species, whereas extinction rises as more species divide finite area and maintain smaller populations. The remaining alternatives—“Higher competition”, “More abundant resources”, “Greater species richness”—refer to diffe

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

What is a habitat island?

“Any isolated habitat separated from similar habitats” for what is a habitat island. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. At equilibrium, species identities can continue to turn over even when richness is approximately stable. The model predicts a balance of rates, not an absence of colonization or extinction. The remaining alternatives—“An oceanic island”, “A large continent”, “A freshwater lake”—refer to different states, processes, or scales and therefore do not express the same caus

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

According to the theory, species diversity on islands is:

“Dynamic and balanced” for according to the theory, species diversity on islands is. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Island biogeography explains species richness as a dynamic balance between immigration and extinction. Immigration generally declines as an island fills with species, whereas extinction rises as more species divide finite area and maintain smaller populations. The remaining alternatives—“Fixed and constant”, “Decreasing continually”, “Increasing continually”—refer to

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

When an island is fully populated, it usually shows:

“High extinction rates” for when an island is fully populated, it usually shows. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Larger islands usually support more habitats and larger populations, lowering extinction risk; less isolated islands receive colonists more readily and may experience rescue effects. These mechanisms also apply to habitat fragments that function as ecological islands. The remaining alternatives—“Low competition”, “High resources”, “Increased immigration”—refer to differe

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Which factor increases colonization rates significantly?

“Larger mainland species pool” for which factor increases colonization rates significantly. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Larger islands usually support more habitats and larger populations, lowering extinction risk; less isolated islands receive colonists more readily and may experience rescue effects. These mechanisms also apply to habitat fragments that function as ecological islands. The remaining alternatives—“Smaller mainland species pool”, “Greater distance from mainland”,

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Islands located far from the mainland usually show:

“High extinction and low immigration” for islands located far from the mainland usually show. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Larger islands usually support more habitats and larger populations, lowering extinction risk; less isolated islands receive colonists more readily and may experience rescue effects. These mechanisms also apply to habitat fragments that function as ecological islands. The remaining alternatives—“Low extinction and low immigration”, “High immigration and high

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

The highest risk of extinction is usually found on:

“Isolated small islands” for the highest risk of extinction is usually found on. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. At equilibrium, species identities can continue to turn over even when richness is approximately stable. The model predicts a balance of rates, not an absence of colonization or extinction. The remaining alternatives—“Isolated large islands”, “Islands close to the mainland”, “Large continental islands”—refer to different states, processes, or scales and therefore do not

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Mainlands are defined as:

“Original habitat of immigrant species” for mainlands are defined as. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Island biogeography explains species richness as a dynamic balance between immigration and extinction. Immigration generally declines as an island fills with species, whereas extinction rises as more species divide finite area and maintain smaller populations. The remaining alternatives—“Regions near oceanic islands”, “Desert ecosystems”, “High-altitude ecosystems”—refer to differe

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Which book was NOT referenced in your provided presentation?

The keyed exception is “Origin of Species by Charles Darwin.” In the context of which book was not referenced in your provided presentation, that statement differs from the governing ecological pattern and must be evaluated against the mechanism rather than accepted from wording alone. Larger islands usually support more habitats and larger populations, lowering extinction risk; less isolated islands receive colonists more readily and may experience rescue effects. These mechanisms also apply to habitat fragments that function as ecological islands. The remaining alternatives—“Ecology & Enviro

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

What affects the extinction rate according to MacArthur-Wilson theory?

“Size of island” for what affects the extinction rate according to macarthur-wilson theory. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. At equilibrium, species identities can continue to turn over even when richness is approximately stable. The model predicts a balance of rates, not an absence of colonization or extinction. The remaining alternatives—“Temperature”, “Predation rate”, “Evolution rate”—refer to different states, processes, or scales and therefore do not express the same causal re

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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Biogeography

Larger islands generally support more species due to:

“Lower extinction rates” for larger islands generally support more species due to. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. At equilibrium, species identities can continue to turn over even when richness is approximately stable. The model predicts a balance of rates, not an absence of colonization or extinction. The remaining alternatives—“Higher extinction rates”, “Lower habitat diversity”, “Fewer resources”—refer to different states, processes, or scales and therefore do not express the s

Ref: Biogeography, Lomolino et al., 5th Ed., Ch. 1-4

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