What do you conclude about the population size estimates of mallard ducks on the Kaipara Harbour?

What recommendations in data collection do you make for future studies of mallard ducks on the Kaipara Harbour? [5 marks]

If the storms caused a high mortality of the ducks on Saturday night, what assumption has been violated and how would this affect our population estimate?

In 2023 many storms occurred in Auckland and this has been hypothesised to explain the results. 1. If the storms caused a high mortality of the ducks in the traps on Saturday, what assumption has been violated and how would this affect our population estimate? [4 marks] 2. If the storms caused a high mortality of the ducks on Saturday night, what assumption has been violated and how would this affect our population estimate? [4 marks] 3. If the storms caused ducks to fly away and leave the study area on Saturday night, what assumption has been violated and how would this affect our population estimate? [4 marks] 4. If the storms stopped some ducks from being caught over the weekend, what assumption has been violated and how would this affect our population estimate? [4 marks] 5. If the storms changed the re-catchability of ducks on Sunday, what assumption has been violated and how would this affect our population estimate? [4 marks]

Since 1990, the number of arrivals of migratory birds to a wetland has been monitored. Based on the data collected over the years until 2022, a model was created to predict the size of the colony of migratory birds that would come to the wetland each year. The model was found to beP = 3250(0.98)t Where P is the size of the colony (number of birds), and t is the time (t = 0 for year 1990). What do we know from this model about the number of arrivals of migratory birds to the wetland?Select all the correct answers.Question 9Answera.The size of the colony of the migratory birds arriving has decreased exponentially with a total rate of decay of 2% between 1990 to 2022 inclusive.b.The model estimates that there were 3250 birds arriving in 1990.c.The size of the colony of migratory birds arriving has been declining exponentially over the years at a constant rate of 2% each year.d.The size of the colony in 2021 is 98% that of 2020.

What might happen if too many people harvest too many animals from coastal areas?