Reference no: EM133302126

Laidre et al. (2020) 'Interrelated ecological impacts of climate change on an apex predator' presented Figure 1 'Capture locations and movements of adult female polar bears in Baffin Bay shown in red for the 1990s and blue for the 2000s. PBSG (2018) subpopulation boundaries are shown on the map with black lines'

1. The Authors use the ecological terms 'population' and 'subpopulation' throughout their article. Evaluate their explanation(s) for these concepts. If you think they need help, provide it.

2. Describe the general pattern(s) of capture location (red triangles) and subsequent movement (red lines) of the adult female polar bears that were fitted with satellite radio tracking collars in the 1990s.

3. Describe the general pattern(s) of capture location (blue squares) and subsequent movement (blue lines) of the adult female polar bears that were fitted with satellite radio tracking collars in the 2000s.

4. What ecological hypothesis(es) could account for the observed difference(s)?