You observed the two species of barnacles, species 1 and species 2, occupy upper and lower strata of intertidal rocks, respectively. Only when species 1 was removed by you from the upper strata, species 2 could occupy both the upper and lower strata. From the choice given below what would be your inference from these observations.

#Question id: 10708

#Unit 10. Ecological Principles

Which of the following statements is a likely explanation for why invasive species take over communities into which they have been introduced?

#Question id: 10709

#Unit 10. Ecological Principles

Researcher study the diversity of 2 communities, following is relative abundance of each species at different community? ( ln .5 = -0.69  , ln .25= -1.38  , ln .12= -2.12)

What is value of Shannon index of community A and community B respectively?

#Question id: 10710

#Unit 10. Ecological Principles

Researcher study the diversity of 3 communities, 4 species was recorded from all community. Presence (+) and absence (-) of species are given 

What is similarity coefficient between A & B, B & C, and A & C RESPECTIVELY?

#Question id: 10711

#Unit 10. Ecological Principles

Following table shows the number of individuals of five tree species in a community

Based on the above, the Simpson’s index and Shannon weaver of the community will be respectively?

#Question id: 10712

#Unit 10. Ecological Principles

Researcher study the diversity of 4 communities, following is relative abundance of each species at different community? ( ln .5 = -0.69  , ln .25= -1.38, ln .12= -2.12)

Which of the following is decreasing order of their Shannon weaver diversity index of community?

#Question id: 10713

#Unit 10. Ecological Principles

Following is sampling data of five species in five quadrate is represent. Which of the following is a correct order of decreasing abundance?