#Question id: 23201
#Unit 13. Methods in Biology
#Question id: 10718
#Unit 10. Ecological Principles
A researcher collects data on plant species composition in two habitats (P and Q) by using 10 quadrats each in both habitats. She calculates the average a-diversity and the 13-diversity of each habitat from this data (shown below). Which of the following can be inferred about these habitats?
A) Q has greater total diversity (γ) and more heterogeneous than P
B) Q has lower total diversity (γ) and less heterogeneous than P
C) P has lower total diversity (γ) and more heterogeneous than Q
D) P has greater total diversity (γ) and more heterogeneous than Q
#Question id: 15602
#Unit 12. Applied Biology
#Question id: 12068
#Unit 7. System Physiology – Animal
#Question id: 10631
#Unit 10. Ecological Principles
To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data?