Hypothetical patterns of change in the relationship of plants and their endophytic symbionts along a gradient of increasing abiotic stress, which of the following is correct? 

#Question id: 11642

#Section 2: Evolution

To obtain optimal yield, populations should be harvested at what part of the sigmoid growth curve ?

#Question id: 11714

#Section 2: Evolution

In recognizing patchiness in the natural world, ecologists have developed three different models of populations. Which of these recognize(s) that there are differences in the quality of habitat patches without considering effects of differences in habitat quality within the habitat matrix?

#Question id: 11715

#Section 2: Evolution

The lifetime dispersal area of a particular species of drosophila is 0.2 km2. What else would we need to know to determine the neighbourhood size for this species?

#Question id: 11716

#Section 2: Evolution

Macroecology addresses patterns of range size and population density. Which of the following statements is true?

#Question id: 11765

#Section 2: Evolution

The population density of a particular insect species was determined to be 15,000 adults per hectare in the summer of 1996, 21,000 adults per hectare in the summer of 1997, and 29,400 adults per hectare in the summer of 1998. Based on these population estimates, what is your estimate of λ, the annual rate of geometric growth?

#Question id: 11766

#Section 2: Evolution

The population density of a particular insect species was determined to be 15,000 adults per hectare in the summer of 1996, 21,000 adults per hectare in the summer of 1997, and 29,400 adults per hectare in the summer of 1998.

What would you expect the insect population to be in the summer of 2000, assuming no change in λ?