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a) Is there any difference between the sexes regarding the propensity to jump off cliffs and flap the ears? (ignore color for the moment) (2p) I will the hypothesis that elephants of two sexes are equ...

a) Is there a difference between the sexes with respect to total tree-felling? (3p) Firstly, I imported the data and checked. Then I calculated the total tree-felling data. According to the question, ...

a) Does the treatment (added mice) affect the relationship between habitat quality and elephant density? (5p) Firstly, I checked the data and found that there is a clear linear relationship between el...

a) Student number 2 is a new student with little experience of elephants, and professor Elestat thus had a prior expectation that he might deviate from the others in his measurements. Does he? (4p) I ...

SI dynamics (8p) Consider the spread of an incurable disease in a population, i.e. a disease from which there is no escape. Its spread can be modeled with an SI model, denoting S the number of suscept...

Demographic stochasticity (3p) Small populations are vulnerable to extinction simply because they are small. The fate of single individuals may have large effect on the growth of the population. A few...

Optimal fishing of an unstructured population (6p) Consider a fish population that grows according to dndt=rn(1−(nK)2) \cfrac{dn}{dt}=rn(1-(\cfrac{n}{K})^2) dtdn​=rn(1−(Kn​)2) where r and K are positi...

Dynamic Systems A dynamic systems changes over time, a function relates to time. Exponential growth A simple example is that of exponential growth, applicable to bacterial growth in a test tube. Assum...