What are examples of each hypothesis? Hypothesis Evolutionary Speed Geographical

Question

What are examples of each hypothesis? Hypothesis Evolutionary Speed Geographical Area Interspecific Interactions Ambient Energy Productivity Disturbance Rationale More time and rapid evolution permits evolution of new species Larger areas and complex habitats provide more niches Competition affects niche partitioning, predation delays competitive exclusion Fewer species tolerate climatically unfavorable conditions Richness is limited by partitioning of production/energy among species Moderate disturbance delays competitive exclusion

Explanation / Answer

Hypothesis

Examples

Evolutionary speed hypothesis

Geographical area

Interspecific interactions

Ambient energy

Productivity

Tropical habitats have more diversity due to mores productivity than temperate habitats

Disturbance

Marine habitats such as coral reefs and macroalgal communities have higher species diversity in areas affected by moderate intensity of waves and storms.

Hypothesis

Examples

Evolutionary speed hypothesis

1. Higher evolutionary rates in the tropics have caused higher speciation rates and thus increased diversity at low latitudes.
2. Baikal lake is one of the oldest lake and hence species rich(e.g., 580 species of benthic invertebrates)

Geographical area

1. Tropics are the largest biome and that large tropical areas support more species.
2. Highest diversities of mammals in western states of United states

Interspecific interactions

1. Very high diversity in tropics is as a result of intense competitions over thousands of years.
2. Higher diversity of Anolis lizards on Caribbean islands

Ambient energy

1. Coral reefs in tropical waters are species rich
2. Tree and vertebrate diversity in North America

Productivity

Tropical habitats have more diversity due to mores productivity than temperate habitats

Disturbance

Marine habitats such as coral reefs and macroalgal communities have higher species diversity in areas affected by moderate intensity of waves and storms.

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