During succession species that colonize in early seral stages tend to have different life-history characteristics than those that colonize in later seral stages ;

A) Early seral stage in succession

B) Late seral stage in succession

 i) Good seed dispersal ability

ii) Lower plant efficiency in low light

iii) Seed dispersal  by animal

iv) Slower the resource acquisition

v) Found large biomass

vi) Seed longevity is long type

Which of the following is the correct prediction about early and the late successional seral stage?

#Question id: 11384

#Unit 10. Ecological Principles

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

#Question id: 11385

#Unit 10. Ecological Principles

Which of the following biomes is correctly paired with the description of its climate?

A) savanna-low temperature, precipitation uniform during the year

B) tundra-long summers, mild winters

C) Taiga-relatively short growing season, Low precipitation

D) temperate grasslands-relatively warm winters, most rainfall in summer

E) tropical forests-nearly constant day length and temperature

#Question id: 11416

#Unit 10. Ecological Principles

Which of the following biomes spans the largest annual mean temperature range, but the narrowest mean precipitation range?

#Question id: 11417

#Unit 10. Ecological Principles

Use the following figure to answer the question below

Which of the following name of biome 5, 6, 4 and 3 respectively?

#Question id: 11418

#Unit 10. Ecological Principles

Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island equilibrium model principles

Which island would likely have the lowest extinction rate?

#Question id: 11419

#Unit 10. Ecological Principles

There are more species in tropical areas than in places more distant from the equator. This is probably a result of

a) more predators and parasites

b) more dispersed annual solar radiation compared to the poles

c) more frequent ecological disturbances over a longer time span

d) a longer time frame without disturbances for evolution and speciation